renderer: shader variants refactor (#13434)

Part 0 of renderer reworks.

CMakeLists.txt

@@ -125,6 +125,7 @@ find_package(Threads REQUIRED)
 
 set(GLES_VERSION "GLES3")
 find_package(OpenGL REQUIRED COMPONENTS ${GLES_VERSION})
+find_package(glslang CONFIG REQUIRED)
 
 set(AQUAMARINE_MINIMUM_VERSION 0.9.3)
 set(HYPRLANG_MINIMUM_VERSION 0.6.7)
@@ -479,9 +480,9 @@ function(protocolWayland)
 endfunction()
 
 if(TARGET OpenGL::GL)
-  target_link_libraries(hyprland_lib PUBLIC OpenGL::EGL OpenGL::GL Threads::Threads)
+  target_link_libraries(hyprland_lib PUBLIC OpenGL::EGL OpenGL::GL glslang::glslang glslang::glslang-default-resource-limits glslang::SPIRV Threads::Threads)
 else()
-  target_link_libraries(hyprland_lib PUBLIC OpenGL::EGL OpenGL::GLES3 Threads::Threads)
+  target_link_libraries(hyprland_lib PUBLIC OpenGL::EGL OpenGL::GLES3 glslang::glslang glslang::glslang-default-resource-limits glslang::SPIRV Threads::Threads)
 endif()
 
 pkg_check_modules(hyprland_protocols_dep hyprland-protocols>=0.6.4)

nix/default.nix

@@ -12,6 +12,7 @@
   epoll-shim,
   git,
   glaze-hyprland,
+  glslang,
   gtest,
   hyprcursor,
   hyprgraphics,
@@ -173,6 +174,7 @@ customStdenv.mkDerivation (finalAttrs: {
       cairo
       git
       glaze-hyprland
+      glslang
       gtest
       hyprcursor
       hyprgraphics

scripts/generateShaderIncludes.sh

@@ -15,7 +15,7 @@ echo 'static const std::map<std::string, std::string> SHADERS = {' >> ./src/rend
 for filename in `ls ${SHADERS_SRC}`; do
 	echo "--	${filename}"
 	
-	{ echo 'R"#('; cat ${SHADERS_SRC}/${filename}; echo ')#"'; } > ./src/render/shaders/${filename}.inc
+	{ echo -n 'R"#('; cat ${SHADERS_SRC}/${filename}; echo ')#"'; } > ./src/render/shaders/${filename}.inc
 	echo "{\"${filename}\"," >> ./src/render/shaders/Shaders.hpp
 	echo "#include \"./${filename}.inc\"" >> ./src/render/shaders/Shaders.hpp
 	echo "}," >> ./src/render/shaders/Shaders.hpp

src/config/ConfigDescriptions.hpp

@@ -1585,6 +1585,12 @@ inline static const std::vector<SConfigOptionDescription> CONFIG_OPTIONS = {
         .type        = CONFIG_OPTION_BOOL,
         .data        = SConfigOptionDescription::SBoolData{true},
     },
+    {
+        .value       = "render:use_shader_blur_blend",
+        .description = "Use experimental blurred bg blending",
+        .type        = CONFIG_OPTION_BOOL,
+        .data        = SConfigOptionDescription::SBoolData{false},
+    },
 
     /*
      * cursor:

src/config/ConfigManager.cpp

@@ -800,6 +800,7 @@ CConfigManager::CConfigManager() {
     registerConfigVar("render:cm_sdr_eotf", {"default"});
     registerConfigVar("render:commit_timing_enabled", Hyprlang::INT{1});
     registerConfigVar("render:icc_vcgt_enabled", Hyprlang::INT{1});
+    registerConfigVar("render:use_shader_blur_blend", Hyprlang::INT{0});
 
     registerConfigVar("ecosystem:no_update_news", Hyprlang::INT{0});
     registerConfigVar("ecosystem:no_donation_nag", Hyprlang::INT{0});

src/debug/HyprCtl.cpp

@@ -2049,7 +2049,12 @@ static std::string submapRequest(eHyprCtlOutputFormat format, std::string reques
 }
 
 static std::string reloadShaders(eHyprCtlOutputFormat format, std::string request) {
-    if (g_pHyprOpenGL->initShaders())
+    CVarList vars(request, 0, ' ');
+
+    if (vars.size() > 2)
+        return "too many args";
+
+    if (g_pHyprOpenGL && g_pHyprRenderer->reloadShaders(vars.size() == 2 ? vars[1] : ""))
         return format == FORMAT_JSON ? "{\"ok\": true}" : "ok";
     else
         return format == FORMAT_JSON ? "{\"ok\": false}" : "error";
@@ -2076,8 +2081,8 @@ CHyprCtl::CHyprCtl() {
     registerCommand(SHyprCtlCommand{"locked", true, getIsLocked});
     registerCommand(SHyprCtlCommand{"descriptions", true, getDescriptions});
     registerCommand(SHyprCtlCommand{"submap", true, submapRequest});
-    registerCommand(SHyprCtlCommand{.name = "reloadshaders", .exact = true, .fn = reloadShaders});
 
+    registerCommand(SHyprCtlCommand{.name = "reloadshaders", .exact = false, .fn = reloadShaders});
     registerCommand(SHyprCtlCommand{"monitors", false, monitorsRequest});
     registerCommand(SHyprCtlCommand{"reload", false, reloadRequest});
     registerCommand(SHyprCtlCommand{"plugin", false, dispatchPlugin});

src/helpers/Format.cpp

@@ -297,22 +297,6 @@ int NFormatUtils::minStride(const SPixelFormat* const fmt, int32_t width) {
     return std::ceil((width * fmt->bytesPerBlock) / pixelsPerBlock(fmt));
 }
 
-uint32_t NFormatUtils::drmFormatToGL(DRMFormat drm) {
-    switch (drm) {
-        case DRM_FORMAT_XRGB8888:
-        case DRM_FORMAT_XBGR8888: return GL_RGBA; // doesn't matter, opengl is gucci in this case.
-        case DRM_FORMAT_XRGB2101010:
-        case DRM_FORMAT_XBGR2101010: return GL_RGB10_A2;
-        default: return GL_RGBA;
-    }
-    UNREACHABLE();
-    return GL_RGBA;
-}
-
-uint32_t NFormatUtils::glFormatToType(uint32_t gl) {
-    return gl != GL_RGBA ? GL_UNSIGNED_INT_2_10_10_10_REV : GL_UNSIGNED_BYTE;
-}
-
 std::string NFormatUtils::drmFormatName(DRMFormat drm) {
     auto n = drmGetFormatName(drm);
 

src/helpers/Format.hpp

@@ -53,8 +53,6 @@ namespace NFormatUtils {
     bool                isFormatOpaque(DRMFormat drm);
     int                 pixelsPerBlock(const SPixelFormat* const fmt);
     int                 minStride(const SPixelFormat* const fmt, int32_t width);
-    uint32_t            drmFormatToGL(DRMFormat drm);
-    uint32_t            glFormatToType(uint32_t gl);
     std::string         drmFormatName(DRMFormat drm);
     std::string         drmModifierName(uint64_t mod);
     DRMFormat           alphaFormat(DRMFormat prevFormat);

src/helpers/Monitor.cpp

@@ -1579,10 +1579,20 @@ Vector2D CMonitor::middle() {
     return m_position + m_size / 2.f;
 }
 
+const Mat3x3& CMonitor::getTransformMatrix() {
+    return m_projMatrix;
+}
+
+const Mat3x3& CMonitor::getScaleMatrix() {
+    return m_projOutputMatrix;
+}
+
 void CMonitor::updateMatrix() {
     m_projMatrix = Mat3x3::identity();
     if (m_transform != WL_OUTPUT_TRANSFORM_NORMAL)
         m_projMatrix.translate(m_pixelSize / 2.0).transform(Math::wlTransformToHyprutils(m_transform)).translate(-m_transformedSize / 2.0);
+
+    m_projOutputMatrix = Mat3x3::outputProjection(m_pixelSize, HYPRUTILS_TRANSFORM_NORMAL);
 }
 
 WORKSPACEID CMonitor::activeWorkspaceID() {

src/helpers/Monitor.hpp

@@ -127,7 +127,7 @@ class CMonitor {
     bool                        m_scheduledRecalc = false;
     wl_output_transform         m_transform       = WL_OUTPUT_TRANSFORM_NORMAL;
     float                       m_xwaylandScale   = 1.f;
-    Mat3x3                      m_projMatrix;
+
     std::optional<Vector2D>     m_forceSize;
     SP<Aquamarine::SOutputMode> m_currentMode;
     SP<Aquamarine::CSwapchain>  m_cursorSwapchain;
@@ -303,7 +303,6 @@ class CMonitor {
     void        setSpecialWorkspace(const WORKSPACEID& id);
     void        moveTo(const Vector2D& pos);
     Vector2D    middle();
-    void        updateMatrix();
     WORKSPACEID activeWorkspaceID();
     WORKSPACEID activeSpecialWorkspaceID();
     CBox        logicalBox();
@@ -335,6 +334,10 @@ class CMonitor {
     bool        inHDR();
     bool        gammaRampsInUse();
 
+    //
+    const Mat3x3& getTransformMatrix();
+    const Mat3x3& getScaleMatrix();
+
     /// Has an active workspace with a real fullscreen window (includes special workspace)
     bool inFullscreenMode();
     /// Get fullscreen window from active or special workspace
@@ -364,7 +367,12 @@ class CMonitor {
         return m_position == rhs.m_position && m_size == rhs.m_size && m_name == rhs.m_name;
     }
 
+    Mat3x3 m_projMatrix;
+
   private:
+    void                    updateMatrix();
+    Mat3x3                  m_projOutputMatrix;
+
     void                    setupDefaultWS(const SMonitorRule&);
     WORKSPACEID             findAvailableDefaultWS();
     void                    commitDPMSState(bool state);

src/helpers/TransferFunction.cpp

@@ -26,7 +26,10 @@ std::string NTransferFunction::toString(eTF tf) {
     return "";
 }
 
-eTF NTransferFunction::fromConfig() {
+eTF NTransferFunction::fromConfig(bool useICC) {
+    if (useICC)
+        return TF_SRGB;
+
     static auto PSDREOTF = CConfigValue<Hyprlang::STRING>("render:cm_sdr_eotf");
     static auto sdrEOTF  = NTransferFunction::fromString(*PSDREOTF);
     static auto P        = Event::bus()->m_events.config.reloaded.listen([]() { sdrEOTF = NTransferFunction::fromString(*PSDREOTF); });

src/helpers/TransferFunction.hpp

@@ -15,5 +15,5 @@ namespace NTransferFunction {
     eTF         fromString(const std::string tfName);
     std::string toString(eTF tf);
 
-    eTF         fromConfig();
+    eTF         fromConfig(bool useICC = false);
 }

src/helpers/cm/ColorManagement.hpp

@@ -322,18 +322,22 @@ namespace NColorManagement {
 
     using PImageDescription = WP<const CImageDescription>;
 
-    static const auto DEFAULT_IMAGE_DESCRIPTION = CImageDescription::from(SImageDescription{.transferFunction = NColorManagement::CM_TRANSFER_FUNCTION_GAMMA22,
+    static const auto DEFAULT_IMAGE_DESCRIPTION = CImageDescription::from(SImageDescription{
+        .transferFunction = NColorManagement::CM_TRANSFER_FUNCTION_GAMMA22,
         .primariesNameSet = true,
         .primariesNamed   = NColorManagement::CM_PRIMARIES_SRGB,
         .primaries        = NColorManagement::getPrimaries(NColorManagement::CM_PRIMARIES_SRGB),
-                                                                                            .luminances       = {.min = SDR_MIN_LUMINANCE, .max = 80, .reference = 80}});
+        .luminances       = {.min = SDR_MIN_LUMINANCE, .max = 80, .reference = 80},
+    });
 
-    static const auto DEFAULT_HDR_IMAGE_DESCRIPTION = CImageDescription::from(SImageDescription{.transferFunction = NColorManagement::CM_TRANSFER_FUNCTION_ST2084_PQ,
+    static const auto DEFAULT_HDR_IMAGE_DESCRIPTION = CImageDescription::from(SImageDescription{
+        .transferFunction = NColorManagement::CM_TRANSFER_FUNCTION_ST2084_PQ,
         .primariesNameSet = true,
         .primariesNamed   = NColorManagement::CM_PRIMARIES_BT2020,
         .primaries        = NColorManagement::getPrimaries(NColorManagement::CM_PRIMARIES_BT2020),
-                                                                                                .luminances = {.min = HDR_MIN_LUMINANCE, .max = 10000, .reference = 203}});
+        .luminances       = {.min = HDR_MIN_LUMINANCE, .max = 10000, .reference = 203},
-    ;
+    });
+
     static const auto SCRGB_IMAGE_DESCRIPTION = CImageDescription::from(SImageDescription{
         .transferFunction = NColorManagement::CM_TRANSFER_FUNCTION_EXT_LINEAR,
         .windowsScRGB     = true,
@@ -342,6 +346,6 @@ namespace NColorManagement {
         .primaries        = NColorPrimaries::BT709,
         .luminances       = {.reference = 203},
     });
-    ;
 
+    static const auto LINEAR_IMAGE_DESCRIPTION = SCRGB_IMAGE_DESCRIPTION; // TODO any reason to use something different?
 }

src/managers/screenshare/ScreenshareFrame.cpp

@@ -164,6 +164,7 @@ void CScreenshareFrame::renderMonitor() {
 
     auto       TEXTURE = g_pHyprOpenGL->m_monitorRenderResources[PMONITOR].monitorMirrorFB.getTexture();
 
+    const bool IS_CM_AWARE                      = PROTO::colorManagement && PROTO::colorManagement->isClientCMAware(m_session->m_client);
     g_pHyprOpenGL->m_renderData.transformDamage = false;
     g_pHyprOpenGL->m_renderData.noSimplify      = true;
 
@@ -173,7 +174,11 @@ void CScreenshareFrame::renderMonitor() {
                       .translate(-m_session->m_captureBox.pos()); // vvvv kinda ass-backwards but that's how I designed the renderer... sigh.
     g_pHyprOpenGL->pushMonitorTransformEnabled(true);
     g_pHyprOpenGL->setRenderModifEnabled(false);
-    g_pHyprOpenGL->renderTexturePrimitive(TEXTURE, monbox);
+    g_pHyprOpenGL->renderTexture(TEXTURE, monbox,
+                                 {
+                                     .cmBackToSRGB       = !IS_CM_AWARE,
+                                     .cmBackToSRGBSource = !IS_CM_AWARE ? PMONITOR : nullptr,
+                                 });
     g_pHyprOpenGL->setRenderModifEnabled(true);
     g_pHyprOpenGL->popMonitorTransformEnabled();
 

src/render/OpenGL.cpp

@@ -1,5 +1,6 @@
 #include <GLES3/gl32.h>
 #include <hyprgraphics/color/Color.hpp>
+#include <hyprutils/math/Misc.hpp>
 #include <hyprutils/string/String.hpp>
 #include <hyprutils/path/Path.hpp>
 #include <numbers>
@@ -31,6 +32,7 @@
 #include "../managers/screenshare/ScreenshareManager.hpp"
 #include "debug/HyprNotificationOverlay.hpp"
 #include "hyprerror/HyprError.hpp"
+#include "macros.hpp"
 #include "pass/TexPassElement.hpp"
 #include "pass/RectPassElement.hpp"
 #include "pass/PreBlurElement.hpp"
@@ -44,20 +46,14 @@
 #include <xf86drm.h>
 #include <fcntl.h>
 #include <gbm.h>
-#include <filesystem>
 #include <cstring>
-#include "./shaders/Shaders.hpp"
+#include "ShaderLoader.hpp"
+#include "Texture.hpp"
+#include <filesystem>
 
 using namespace Hyprutils::OS;
 using namespace NColorManagement;
-
+using namespace Render;
-const std::vector<const char*> ASSET_PATHS = {
-#ifdef DATAROOTDIR
-    DATAROOTDIR,
-#endif
-    "/usr/share",
-    "/usr/local/share",
-};
 
 static inline void loadGLProc(void* pProc, const char* name) {
     void* proc = rc<void*>(eglGetProcAddress(name));
@@ -880,124 +876,30 @@ void CHyprOpenGLImpl::setDamage(const CRegion& damage_, std::optional<CRegion> f
     m_renderData.finalDamage.set(finalDamage.value_or(damage_));
 }
 
-// TODO notify user if bundled shader is newer than ~/.config override
+static const std::vector<std::string> SHADER_INCLUDES = {
-static std::string loadShader(const std::string& filename) {
+    "defines.h",   "constants.h", "cm_helpers.glsl",  "rounding.glsl", "CM.glsl",    "tonemap.glsl",    "gain.glsl",
-    const auto home = Hyprutils::Path::getHome();
+    "border.glsl", "shadow.glsl", "blurprepare.glsl", "blur1.glsl",    "blur2.glsl", "blurFinish.glsl",
-    if (home.has_value()) {
+};
-        const auto src = NFsUtils::readFileAsString(home.value() + "/hypr/shaders/" + filename);
-        if (src.has_value())
-            return src.value();
-    }
-    for (auto& e : ASSET_PATHS) {
-        const auto src = NFsUtils::readFileAsString(std::string{e} + "/hypr/shaders/" + filename);
-        if (src.has_value())
-            return src.value();
-    }
-    if (SHADERS.contains(filename))
-        return SHADERS.at(filename);
-    throw std::runtime_error(std::format("Couldn't load shader {}", filename));
-}
 
-static void loadShaderInclude(const std::string& filename, std::map<std::string, std::string>& includes) {
+// order matters, see ePreparedFragmentShader
-    includes.insert({filename, loadShader(filename)});
+const std::array<std::string, SH_FRAG_LAST> FRAG_SHADERS = {
-}
+    "quad.frag",        "passthru.frag",   "rgbamatte.frag", "ext.frag",     "blur1.frag",  "blur2.frag",
+    "blurprepare.frag", "blurfinish.frag", "shadow.frag",    "surface.frag", "border.frag", "glitch.frag",
+};
 
-static void processShaderIncludes(std::string& source, const std::map<std::string, std::string>& includes) {
+bool CHyprOpenGLImpl::initShaders(const std::string& path) {
-    for (auto it = includes.begin(); it != includes.end(); ++it) {
-        Hyprutils::String::replaceInString(source, "#include \"" + it->first + "\"", it->second);
-    }
-}
-
-static const uint8_t MAX_INCLUDE_DEPTH = 3;
-
-static std::string   processShader(const std::string& filename, const std::map<std::string, std::string>& includes, const uint8_t includeDepth = 1) {
-    auto source = loadShader(filename);
-    for (auto i = 0; i < includeDepth; i++) {
-        processShaderIncludes(source, includes);
-    }
-    return source;
-}
-
-bool CHyprOpenGLImpl::initShaders() {
     auto              shaders = makeShared<SPreparedShaders>();
-    std::map<std::string, std::string> includes;
-    const bool                         isDynamic = m_shadersInitialized;
     static const auto PCM     = CConfigValue<Hyprlang::INT>("render:cm_enabled");
 
     try {
-        loadShaderInclude("get_rgb_pixel.glsl", includes);
+        auto shaderLoader = makeUnique<CShaderLoader>(SHADER_INCLUDES, FRAG_SHADERS, path);
-        loadShaderInclude("get_rgba_pixel.glsl", includes);
-        loadShaderInclude("get_rgbx_pixel.glsl", includes);
-        loadShaderInclude("discard.glsl", includes);
-        loadShaderInclude("do_discard.glsl", includes);
-        loadShaderInclude("tint.glsl", includes);
-        loadShaderInclude("do_tint.glsl", includes);
-        loadShaderInclude("rounding.glsl", includes);
-        loadShaderInclude("do_rounding.glsl", includes);
-        loadShaderInclude("surface_CM.glsl", includes);
-        loadShaderInclude("CM.glsl", includes);
-        loadShaderInclude("do_CM.glsl", includes);
-        loadShaderInclude("tonemap.glsl", includes);
-        loadShaderInclude("do_tonemap.glsl", includes);
-        loadShaderInclude("sdr_mod.glsl", includes);
-        loadShaderInclude("do_sdr_mod.glsl", includes);
-        loadShaderInclude("primaries_xyz.glsl", includes);
-        loadShaderInclude("primaries_xyz_uniform.glsl", includes);
-        loadShaderInclude("primaries_xyz_const.glsl", includes);
-        loadShaderInclude("gain.glsl", includes);
-        loadShaderInclude("border.glsl", includes);
 
-        shaders->TEXVERTSRC    = processShader("tex300.vert", includes);
+        shaders->TEXVERTSRC    = shaderLoader->process("tex300.vert");
-        shaders->TEXVERTSRC320 = processShader("tex320.vert", includes);
+        shaders->TEXVERTSRC320 = shaderLoader->process("tex320.vert");
 
-        if (!*PCM)
+        m_cmSupported = *PCM;
-            m_cmSupported = false;
-        else {
-            std::vector<SFragShaderDesc> CM_SHADERS = {{
-                {SH_FRAG_CM_BLURPREPARE, "CMblurprepare.frag"},
-                {SH_FRAG_CM_BORDER1, "CMborder.frag"},
-            }};
 
-            bool                         success = false;
+        g_pShaderLoader = std::move(shaderLoader);
-            for (const auto& desc : CM_SHADERS) {
-                const auto fragSrc = processShader(desc.file, includes, MAX_INCLUDE_DEPTH);
-
-                if (!(success = shaders->frag[desc.id]->createProgram(shaders->TEXVERTSRC, fragSrc, true, true)))
-                    break;
-            }
-
-            if (m_shadersInitialized && m_cmSupported && !success)
-                g_pHyprNotificationOverlay->addNotification(I18n::i18nEngine()->localize(I18n::TXT_KEY_NOTIF_CM_RELOAD_FAILED), CHyprColor{}, 15000, ICON_WARNING);
-
-            m_cmSupported = success;
-
-            if (!m_cmSupported)
-                Log::logger->log(
-                    Log::ERR,
-                    "WARNING: CM Shader failed compiling, color management will not work. It's likely because your GPU is an old piece of garbage, don't file bug reports "
-                    "about this!");
-        }
-
-        std::vector<SFragShaderDesc> FRAG_SHADERS = {{
-            {SH_FRAG_QUAD, "quad.frag"},
-            {SH_FRAG_PASSTHRURGBA, "passthru.frag"},
-            {SH_FRAG_MATTE, "rgbamatte.frag"},
-            {SH_FRAG_GLITCH, "glitch.frag"},
-            {SH_FRAG_EXT, "ext.frag"},
-            {SH_FRAG_BLUR1, "blur1.frag"},
-            {SH_FRAG_BLUR2, "blur2.frag"},
-            {SH_FRAG_BLURPREPARE, "blurprepare.frag"},
-            {SH_FRAG_BLURFINISH, "blurfinish.frag"},
-            {SH_FRAG_SHADOW, "shadow.frag"},
-            {SH_FRAG_BORDER1, "border.frag"},
-        }};
-
-        for (const auto& desc : FRAG_SHADERS) {
-            const auto fragSrc = processShader(desc.file, includes, MAX_INCLUDE_DEPTH);
-
-            if (!shaders->frag[desc.id]->createProgram(shaders->TEXVERTSRC, fragSrc, isDynamic))
-                return false;
-        }
 
     } catch (const std::exception& e) {
         if (!m_shadersInitialized)
@@ -1008,7 +910,6 @@ bool CHyprOpenGLImpl::initShaders() {
     }
 
     m_shaders            = shaders;
-    m_includes           = includes;
     m_shadersInitialized = true;
 
     Log::logger->log(Log::DEBUG, "Shaders initialized successfully.");
@@ -1192,7 +1093,7 @@ void CHyprOpenGLImpl::renderRectWithDamageInternal(const CBox& box, const CHyprC
         newBox, Math::wlTransformToHyprutils(Math::invertTransform(!m_monitorTransformEnabled ? WL_OUTPUT_TRANSFORM_NORMAL : m_renderData.pMonitor->m_transform)), newBox.rot);
     Mat3x3 glMatrix = m_renderData.projection.copy().multiply(matrix);
 
-    auto   shader = useShader(m_shaders->frag[SH_FRAG_QUAD]);
+    auto   shader = useShader(getShaderVariant(SH_FRAG_QUAD, data.round > 0 ? SH_FEAT_ROUNDING : 0));
     shader->setUniformMatrix3fv(SHADER_PROJ, 1, GL_TRUE, glMatrix.getMatrix());
 
     // premultiply the color as well as we don't work with straight alpha
@@ -1272,60 +1173,24 @@ static bool isHDR2SDR(const NColorManagement::SImageDescription& imageDescriptio
 
 void CHyprOpenGLImpl::passCMUniforms(WP<CShader> shader, const NColorManagement::PImageDescription imageDescription,
                                      const NColorManagement::PImageDescription targetImageDescription, bool modifySDR, float sdrMinLuminance, int sdrMaxLuminance) {
-    const auto sdrEOTF = NTransferFunction::fromConfig();
+    const auto settings = g_pHyprRenderer->getCMSettings(imageDescription, targetImageDescription, m_renderData.surface.valid() ? m_renderData.surface.lock() : nullptr, modifySDR,
+                                                         sdrMinLuminance, sdrMaxLuminance);
 
-    if (m_renderData.surface.valid()) {
+    shader->setUniformInt(SHADER_SOURCE_TF, settings.sourceTF);
-        if (m_renderData.surface->m_colorManagement.valid()) {
+    shader->setUniformInt(SHADER_TARGET_TF, settings.targetTF);
-            if (sdrEOTF == NTransferFunction::TF_FORCED_GAMMA22 && imageDescription->value().transferFunction == NColorManagement::eTransferFunction::CM_TRANSFER_FUNCTION_SRGB)
+    shader->setUniformFloat2(SHADER_SRC_TF_RANGE, settings.srcTFRange.min, settings.srcTFRange.max);
-                shader->setUniformInt(SHADER_SOURCE_TF, NColorManagement::eTransferFunction::CM_TRANSFER_FUNCTION_GAMMA22);
+    shader->setUniformFloat2(SHADER_DST_TF_RANGE, settings.dstTFRange.min, settings.dstTFRange.max);
-            else
+    shader->setUniformFloat(SHADER_SRC_REF_LUMINANCE, settings.srcRefLuminance);
-                shader->setUniformInt(SHADER_SOURCE_TF, imageDescription->value().transferFunction);
+    shader->setUniformFloat(SHADER_DST_REF_LUMINANCE, settings.dstRefLuminance);
-        } else if (sdrEOTF == NTransferFunction::TF_SRGB)
+    shader->setUniformFloat(SHADER_MAX_LUMINANCE, settings.maxLuminance);
-            shader->setUniformInt(SHADER_SOURCE_TF, NColorManagement::eTransferFunction::CM_TRANSFER_FUNCTION_SRGB);
+    shader->setUniformFloat(SHADER_DST_MAX_LUMINANCE, settings.dstMaxLuminance);
-        else if (sdrEOTF == NTransferFunction::TF_GAMMA22 || sdrEOTF == NTransferFunction::TF_FORCED_GAMMA22)
+    shader->setUniformFloat(SHADER_SDR_SATURATION, settings.sdrSaturation);
-            shader->setUniformInt(SHADER_SOURCE_TF, NColorManagement::eTransferFunction::CM_TRANSFER_FUNCTION_GAMMA22);
+    shader->setUniformFloat(SHADER_SDR_BRIGHTNESS, settings.sdrBrightnessMultiplier);
-        else
-            shader->setUniformInt(SHADER_SOURCE_TF, imageDescription->value().transferFunction);
-    } else
-        shader->setUniformInt(SHADER_SOURCE_TF, imageDescription->value().transferFunction);
-
-    shader->setUniformInt(SHADER_TARGET_TF, targetImageDescription->value().transferFunction);
-
-    const auto                   targetPrimaries      = targetImageDescription->getPrimaries();
-    const auto                   mat                  = targetPrimaries->value().toXYZ().mat();
-    const std::array<GLfloat, 9> glTargetPrimariesXYZ = {
-        mat[0][0], mat[1][0], mat[2][0], //
-        mat[0][1], mat[1][1], mat[2][1], //
-        mat[0][2], mat[1][2], mat[2][2], //
-    };
-    shader->setUniformMatrix3fv(SHADER_TARGET_PRIMARIES_XYZ, 1, false, glTargetPrimariesXYZ);
-
-    const bool needsSDRmod = modifySDR && isSDR2HDR(imageDescription->value(), targetImageDescription->value());
-    const bool needsHDRmod = !needsSDRmod && isHDR2SDR(imageDescription->value(), targetImageDescription->value());
-
-    shader->setUniformFloat2(SHADER_SRC_TF_RANGE, imageDescription->value().getTFMinLuminance(needsSDRmod ? sdrMinLuminance : -1),
-                             imageDescription->value().getTFMaxLuminance(needsSDRmod ? sdrMaxLuminance : -1));
-    shader->setUniformFloat2(SHADER_DST_TF_RANGE, targetImageDescription->value().getTFMinLuminance(needsSDRmod ? sdrMinLuminance : -1),
-                             targetImageDescription->value().getTFMaxLuminance(needsSDRmod ? sdrMaxLuminance : -1));
-
-    shader->setUniformFloat(SHADER_SRC_REF_LUMINANCE, imageDescription->value().luminances.reference);
-    shader->setUniformFloat(SHADER_DST_REF_LUMINANCE, targetImageDescription->value().luminances.reference);
-
-    const float maxLuminance = needsHDRmod ?
-        imageDescription->value().getTFMaxLuminance(-1) :
-        (imageDescription->value().luminances.max > 0 ? imageDescription->value().luminances.max : imageDescription->value().luminances.reference);
-
-    shader->setUniformFloat(SHADER_MAX_LUMINANCE, maxLuminance * targetImageDescription->value().luminances.reference / imageDescription->value().luminances.reference);
-    shader->setUniformFloat(SHADER_DST_MAX_LUMINANCE, targetImageDescription->value().luminances.max > 0 ? targetImageDescription->value().luminances.max : 10000);
-    shader->setUniformFloat(SHADER_SDR_SATURATION, needsSDRmod && m_renderData.pMonitor->m_sdrSaturation > 0 ? m_renderData.pMonitor->m_sdrSaturation : 1.0f);
-    shader->setUniformFloat(SHADER_SDR_BRIGHTNESS, needsSDRmod && m_renderData.pMonitor->m_sdrBrightness > 0 ? m_renderData.pMonitor->m_sdrBrightness : 1.0f);
 
     if (!targetImageDescription->value().icc.present) {
         const auto cacheKey = std::make_pair(imageDescription->id(), targetImageDescription->id());
-
         if (!primariesConversionCache.contains(cacheKey)) {
-            auto                         conversion      = imageDescription->getPrimaries()->convertMatrix(targetImageDescription->getPrimaries());
+            const auto&                  mat             = settings.convertMatrix;
-            const auto                   mat             = conversion.mat();
             const std::array<GLfloat, 9> glConvertMatrix = {
                 mat[0][0], mat[1][0], mat[2][0], //
                 mat[0][1], mat[1][1], mat[2][1], //
@@ -1335,12 +1200,14 @@ void CHyprOpenGLImpl::passCMUniforms(WP<CShader> shader, const NColorManagement:
         }
         shader->setUniformMatrix3fv(SHADER_CONVERT_MATRIX, 1, false, primariesConversionCache[cacheKey]);
 
-        shader->setUniformInt(SHADER_USE_ICC, 0);
+        const auto                   mat                  = settings.dstPrimaries2XYZ;
-        shader->setUniformInt(SHADER_LUT_3D, 8); // req'd for ogl
+        const std::array<GLfloat, 9> glTargetPrimariesXYZ = {
+            mat[0][0], mat[1][0], mat[2][0], //
+            mat[0][1], mat[1][1], mat[2][1], //
+            mat[0][2], mat[1][2], mat[2][2], //
+        };
+        shader->setUniformMatrix3fv(SHADER_TARGET_PRIMARIES_XYZ, 1, false, glTargetPrimariesXYZ);
     } else {
-        // ICC path, use a 3D LUT
-        shader->setUniformInt(SHADER_USE_ICC, 1);
-
         // TODO: this sucks
         GLCALL(glActiveTexture(GL_TEXTURE8));
         targetImageDescription->value().icc.lutTexture->bind();
@@ -1353,193 +1220,24 @@ void CHyprOpenGLImpl::passCMUniforms(WP<CShader> shader, const NColorManagement:
 }
 
 void CHyprOpenGLImpl::passCMUniforms(WP<CShader> shader, const PImageDescription imageDescription) {
-    passCMUniforms(shader, imageDescription, m_renderData.pMonitor->m_imageDescription, true, m_renderData.pMonitor->m_sdrMinLuminance, m_renderData.pMonitor->m_sdrMaxLuminance);
+    passCMUniforms(shader, imageDescription, g_pHyprRenderer->workBufferImageDescription(), true, m_renderData.pMonitor->m_sdrMinLuminance,
+                   m_renderData.pMonitor->m_sdrMaxLuminance);
 }
 
-void CHyprOpenGLImpl::renderTextureInternal(SP<CTexture> tex, const CBox& box, const STextureRenderData& data) {
+WP<CShader> CHyprOpenGLImpl::renderToOutputInternal() {
-    RASSERT(m_renderData.pMonitor, "Tried to render texture without begin()!");
-    RASSERT((tex->m_texID > 0), "Attempted to draw nullptr texture!");
-
-    TRACY_GPU_ZONE("RenderTextureInternalWithDamage");
-
-    float alpha = std::clamp(data.a, 0.f, 1.f);
-
-    if (data.damage->empty())
-        return;
-
-    CBox newBox = box;
-    m_renderData.renderModif.applyToBox(newBox);
-
     static const auto PDT            = CConfigValue<Hyprlang::INT>("debug:damage_tracking");
-    static const auto PPASS          = CConfigValue<Hyprlang::INT>("render:cm_fs_passthrough");
-    static const auto PENABLECM      = CConfigValue<Hyprlang::INT>("render:cm_enabled");
     static const auto PCURSORTIMEOUT = CConfigValue<Hyprlang::FLOAT>("cursor:inactive_timeout");
 
-    // get the needed transform for this texture
+    WP<CShader>       shader =
-    const auto                  MONITOR_INVERTED = Math::wlTransformToHyprutils(Math::invertTransform(m_renderData.pMonitor->m_transform));
+        g_pHyprRenderer->m_crashingInProgress ? getShaderVariant(SH_FRAG_GLITCH) : (m_finalScreenShader->program() ? m_finalScreenShader : getShaderVariant(SH_FRAG_PASSTHRURGBA));
-    Hyprutils::Math::eTransform TRANSFORM        = tex->m_transform;
-
-    if (m_monitorTransformEnabled)
-        TRANSFORM = Math::composeTransform(MONITOR_INVERTED, TRANSFORM);
-
-    Mat3x3      matrix   = m_renderData.monitorProjection.projectBox(newBox, TRANSFORM, newBox.rot);
-    Mat3x3      glMatrix = m_renderData.projection.copy().multiply(matrix);
-
-    WP<CShader> shader;
-
-    const bool  CRASHING            = m_applyFinalShader && g_pHyprRenderer->m_crashingInProgress;
-    const bool  CUSTOM_FINAL_SHADER = !CRASHING && m_applyFinalShader && m_finalScreenShader->program();
-
-    uint8_t     shaderFeatures = 0;
-
-    if (CRASHING)
-        shader = m_shaders->frag[SH_FRAG_GLITCH];
-    else if (CUSTOM_FINAL_SHADER)
-        shader = m_finalScreenShader;
-    else {
-        if (m_applyFinalShader)
-            shaderFeatures &= ~SH_FEAT_RGBA;
-        else {
-            switch (tex->m_type) {
-                case TEXTURE_RGBA: shaderFeatures |= SH_FEAT_RGBA; break;
-                case TEXTURE_RGBX: shaderFeatures &= ~SH_FEAT_RGBA; break;
-
-                case TEXTURE_EXTERNAL: shader = m_shaders->frag[SH_FRAG_EXT]; break; // might be unused
-                default: RASSERT(false, "tex->m_iTarget unsupported!");
-            }
-        }
-    }
-
-    if (data.finalMonitorCM || (m_renderData.currentWindow && m_renderData.currentWindow->m_ruleApplicator->RGBX().valueOrDefault()))
-        shaderFeatures &= ~SH_FEAT_RGBA;
-
-    glActiveTexture(GL_TEXTURE0);
-    tex->bind();
-
-    tex->setTexParameter(GL_TEXTURE_WRAP_S, data.wrapX);
-    tex->setTexParameter(GL_TEXTURE_WRAP_T, data.wrapY);
-
-    if (m_renderData.useNearestNeighbor) {
-        tex->setTexParameter(GL_TEXTURE_MAG_FILTER, GL_NEAREST);
-        tex->setTexParameter(GL_TEXTURE_MIN_FILTER, GL_NEAREST);
-    } else {
-        tex->setTexParameter(GL_TEXTURE_MAG_FILTER, tex->magFilter);
-        tex->setTexParameter(GL_TEXTURE_MIN_FILTER, tex->minFilter);
-    }
-
-    const bool isHDRSurface      = m_renderData.surface.valid() && m_renderData.surface->m_colorManagement.valid() ? m_renderData.surface->m_colorManagement->isHDR() : false;
-    const bool canPassHDRSurface = isHDRSurface && !m_renderData.surface->m_colorManagement->isWindowsScRGB(); // windows scRGB requires CM shader
-
-    // Color pipeline:
-    // Client ---> sRGB chosen EOTF (render buf) ---> Monitor (target)
-    //
-
-    const auto CONFIG_SDR_EOTF = NTransferFunction::fromConfig();
-    const bool IS_MONITOR_ICC  = m_renderData.pMonitor->m_imageDescription.valid() && m_renderData.pMonitor->m_imageDescription->value().icc.present;
-    const auto CHOSEN_SDR_EOTF = [&] {
-        // if the monitor is ICC'd, use SRGB for best ΔE.
-        if (IS_MONITOR_ICC)
-            return CM_TRANSFER_FUNCTION_SRGB;
-
-        // otherwise use configured
-        if (CONFIG_SDR_EOTF != NTransferFunction::TF_SRGB)
-            return CM_TRANSFER_FUNCTION_GAMMA22;
-        return CM_TRANSFER_FUNCTION_SRGB;
-    }();
-    const auto WORK_BUFFER_IMAGE_DESCRIPTION = CImageDescription::from(NColorManagement::SImageDescription{.transferFunction = CHOSEN_SDR_EOTF});
-
-    // chosenSdrEotf contains the valid eotf for this display
-
-    const auto SOURCE_IMAGE_DESCRIPTION = [&] {
-        // if valid CM surface, use that as a source
-        if (m_renderData.surface.valid() && m_renderData.surface->m_colorManagement.valid())
-            return CImageDescription::from(m_renderData.surface->m_colorManagement->imageDescription());
-
-        // otherwise, if we are CM'ing back into source, use chosen, because that's what our work buffer is in
-        // the same applies to the final monitor CM
-        if (data.cmBackToSRGB || data.finalMonitorCM) // NOLINTNEXTLINE
-            return WORK_BUFFER_IMAGE_DESCRIPTION;
-
-        // otherwise, default
-        return DEFAULT_IMAGE_DESCRIPTION;
-    }();
-
-    const auto TARGET_IMAGE_DESCRIPTION = [&] {
-        // if we are CM'ing back, use default sRGB
-        if (data.cmBackToSRGB)
-            return DEFAULT_IMAGE_DESCRIPTION;
-
-        // for final CM, use the target description
-        if (data.finalMonitorCM)
-            return m_renderData.pMonitor->m_imageDescription;
-
-        // otherwise, use chosen, we're drawing into the work buffer
-        // NOLINTNEXTLINE
-        return WORK_BUFFER_IMAGE_DESCRIPTION;
-    }();
-
-    const bool CANT_CHECK_CM_EQUALITY = data.cmBackToSRGB || data.finalMonitorCM || (!m_renderData.surface || !m_renderData.surface->m_colorManagement);
-
-    const bool skipCM = data.noCM                                                                        /* manual CM disable */
-        || !*PENABLECM || !m_cmSupported                                                                 /* CM unsupported or disabled */
-        || m_renderData.pMonitor->doesNoShaderCM()                                                       /* no shader needed */
-        || (SOURCE_IMAGE_DESCRIPTION->id() == TARGET_IMAGE_DESCRIPTION->id() && !CANT_CHECK_CM_EQUALITY) /* Source and target have the same image description */
-        || (((*PPASS && canPassHDRSurface) ||
-             (*PPASS == 1 && !isHDRSurface && m_renderData.pMonitor->m_cmType != NCMType::CM_HDR && m_renderData.pMonitor->m_cmType != NCMType::CM_HDR_EDID)) &&
-            m_renderData.pMonitor->inFullscreenMode()) /* Fullscreen window with pass cm enabled */;
-
-    if (data.discardActive)
-        shaderFeatures |= SH_FEAT_DISCARD;
-
-    if (data.allowDim && m_renderData.currentWindow && (m_renderData.currentWindow->m_notRespondingTint->value() > 0 || m_renderData.currentWindow->m_dimPercent->value() > 0))
-        shaderFeatures |= SH_FEAT_TINT;
-
-    if (data.round > 0)
-        shaderFeatures |= SH_FEAT_ROUNDING;
-
-    if (!skipCM) {
-        shaderFeatures |= SH_FEAT_CM;
-
-        const bool  needsSDRmod     = isSDR2HDR(SOURCE_IMAGE_DESCRIPTION->value(), TARGET_IMAGE_DESCRIPTION->value());
-        const bool  needsHDRmod     = !needsSDRmod && isHDR2SDR(SOURCE_IMAGE_DESCRIPTION->value(), TARGET_IMAGE_DESCRIPTION->value());
-        const float maxLuminance    = needsHDRmod ?
-               SOURCE_IMAGE_DESCRIPTION->value().getTFMaxLuminance(-1) :
-               (SOURCE_IMAGE_DESCRIPTION->value().luminances.max > 0 ? SOURCE_IMAGE_DESCRIPTION->value().luminances.max : SOURCE_IMAGE_DESCRIPTION->value().luminances.reference);
-        const auto  dstMaxLuminance = TARGET_IMAGE_DESCRIPTION->value().luminances.max > 0 ? TARGET_IMAGE_DESCRIPTION->value().luminances.max : 10000;
-
-        if (maxLuminance >= dstMaxLuminance * 1.01)
-            shaderFeatures |= SH_FEAT_TONEMAP;
-
-        if (data.finalMonitorCM &&
-            (SOURCE_IMAGE_DESCRIPTION->value().transferFunction == CM_TRANSFER_FUNCTION_SRGB ||
-             SOURCE_IMAGE_DESCRIPTION->value().transferFunction == CM_TRANSFER_FUNCTION_GAMMA22) &&
-            TARGET_IMAGE_DESCRIPTION->value().transferFunction == CM_TRANSFER_FUNCTION_ST2084_PQ &&
-            ((m_renderData.pMonitor->m_sdrSaturation > 0 && m_renderData.pMonitor->m_sdrSaturation != 1.0f) ||
-             (m_renderData.pMonitor->m_sdrBrightness > 0 && m_renderData.pMonitor->m_sdrBrightness != 1.0f)))
-            shaderFeatures |= SH_FEAT_SDR_MOD;
-    }
-
-    if (!shader)
-        shader = getSurfaceShader(shaderFeatures);
 
     shader = useShader(shader);
 
-    if (!skipCM) {
+    if (*PDT == 0 || g_pHyprRenderer->m_crashingInProgress)
-        if (data.finalMonitorCM)
-            passCMUniforms(shader, SOURCE_IMAGE_DESCRIPTION, TARGET_IMAGE_DESCRIPTION, true, m_renderData.pMonitor->m_sdrMinLuminance, m_renderData.pMonitor->m_sdrMaxLuminance);
-        else
-            passCMUniforms(shader, SOURCE_IMAGE_DESCRIPTION, TARGET_IMAGE_DESCRIPTION, true, -1, -1);
-    }
-
-    shader->setUniformMatrix3fv(SHADER_PROJ, 1, GL_TRUE, glMatrix.getMatrix());
-    shader->setUniformInt(SHADER_TEX, 0);
-
-    if ((CUSTOM_FINAL_SHADER && *PDT == 0) || CRASHING)
         shader->setUniformFloat(SHADER_TIME, m_globalTimer.getSeconds() - shader->getInitialTime());
-    else if (CUSTOM_FINAL_SHADER)
+    else
-        shader->setUniformFloat(SHADER_TIME, 0.F);
+        shader->setUniformFloat(SHADER_TIME, 0.f);
 
-    if (CUSTOM_FINAL_SHADER) {
     shader->setUniformInt(SHADER_WL_OUTPUT, m_renderData.pMonitor->m_id);
     shader->setUniformFloat2(SHADER_FULL_SIZE, m_renderData.pMonitor->m_pixelSize.x, m_renderData.pMonitor->m_pixelSize.y);
     shader->setUniformFloat(SHADER_POINTER_INACTIVE_TIMEOUT, *PCURSORTIMEOUT);
@@ -1548,9 +1246,8 @@ void CHyprOpenGLImpl::renderTextureInternal(SP<CTexture> tex, const CBox& box, c
     shader->setUniformInt(SHADER_POINTER_SHAPE, g_pHyprRenderer->m_lastCursorData.shape);
     shader->setUniformInt(SHADER_POINTER_SHAPE_PREVIOUS, g_pHyprRenderer->m_lastCursorData.shapePrevious);
     shader->setUniformFloat(SHADER_POINTER_SIZE, g_pCursorManager->getScaledSize());
-    }
 
-    if (CUSTOM_FINAL_SHADER && *PDT == 0) {
+    if (*PDT == 0) {
         PHLMONITORREF pMonitor = m_renderData.pMonitor;
         Vector2D      p        = ((g_pInputManager->getMouseCoordsInternal() - pMonitor->m_position) * pMonitor->m_scale);
         p                      = p.transform(Math::wlTransformToHyprutils(pMonitor->m_transform), pMonitor->m_pixelSize);
@@ -1576,7 +1273,7 @@ void CHyprOpenGLImpl::renderTextureInternal(SP<CTexture> tex, const CBox& box, c
         shader->setUniformFloat(SHADER_POINTER_LAST_ACTIVE, g_pInputManager->m_lastCursorMovement.getSeconds());
         shader->setUniformFloat(SHADER_POINTER_SWITCH_TIME, g_pHyprRenderer->m_lastCursorData.switchedTimer.getSeconds());
 
-    } else if (CUSTOM_FINAL_SHADER) {
+    } else {
         shader->setUniformFloat2(SHADER_POINTER, 0.f, 0.f);
 
         static const std::vector<float> pressedPosDefault(POINTER_PRESSED_HISTORY_LENGTH * 2uz, 0.f);
@@ -1590,13 +1287,141 @@ void CHyprOpenGLImpl::renderTextureInternal(SP<CTexture> tex, const CBox& box, c
         shader->setUniformFloat(SHADER_POINTER_SWITCH_TIME, 0.f);
     }
 
-    if (CRASHING) {
+    if (g_pHyprRenderer->m_crashingInProgress) {
         shader->setUniformFloat(SHADER_DISTORT, g_pHyprRenderer->m_crashingDistort);
         shader->setUniformFloat2(SHADER_FULL_SIZE, m_renderData.pMonitor->m_pixelSize.x, m_renderData.pMonitor->m_pixelSize.y);
     }
 
+    return shader;
+}
+
+WP<CShader> CHyprOpenGLImpl::renderToFBInternal(const STextureRenderData& data, eTextureType texType, const CBox& newBox) {
+    static const auto  PPASS     = CConfigValue<Hyprlang::INT>("render:cm_fs_passthrough");
+    static const auto  PENABLECM = CConfigValue<Hyprlang::INT>("render:cm_enabled");
+    static auto        PBLEND    = CConfigValue<Hyprlang::INT>("render:use_shader_blur_blend");
+
+    float              alpha = std::clamp(data.a, 0.f, 1.f);
+
+    WP<CShader>        shader;
+    ShaderFeatureFlags shaderFeatures = 0;
+
+    switch (texType) {
+        case TEXTURE_RGBA: shaderFeatures |= SH_FEAT_RGBA; break;
+        case TEXTURE_RGBX: shaderFeatures &= ~SH_FEAT_RGBA; break;
+
+        // TODO set correct features
+        case TEXTURE_EXTERNAL: shader = getShaderVariant(SH_FRAG_EXT, SH_FEAT_ROUNDING | SH_FEAT_DISCARD | SH_FEAT_TINT); break; // might be unused
+        default: RASSERT(false, "tex->m_iTarget unsupported!");
+    }
+
+    if (data.finalMonitorCM || (m_renderData.currentWindow && m_renderData.currentWindow->m_ruleApplicator->RGBX().valueOrDefault()))
+        shaderFeatures &= ~SH_FEAT_RGBA;
+
+    const auto surface           = m_renderData.surface;
+    const bool isHDRSurface      = surface.valid() && surface->m_colorManagement.valid() ? surface->m_colorManagement->isHDR() : false;
+    const bool canPassHDRSurface = isHDRSurface && !surface->m_colorManagement->isWindowsScRGB(); // windows scRGB requires CM shader
+
+    const auto WORK_BUFFER_IMAGE_DESCRIPTION = g_pHyprRenderer->workBufferImageDescription();
+
+    // chosenSdrEotf contains the valid eotf for this display
+
+    const auto SOURCE_IMAGE_DESCRIPTION = [&] {
+        // if valid CM surface, use that as a source
+        if (m_renderData.surface.valid() && m_renderData.surface->m_colorManagement.valid())
+            return CImageDescription::from(m_renderData.surface->m_colorManagement->imageDescription());
+
+        // otherwise, if we are CM'ing back into source, use chosen, because that's what our work buffer is in
+        // the same applies to the final monitor CM
+        if (data.cmBackToSRGB || data.finalMonitorCM) // NOLINTNEXTLINE
+            return WORK_BUFFER_IMAGE_DESCRIPTION;
+
+        // otherwise, default
+        return DEFAULT_IMAGE_DESCRIPTION;
+    }();
+
+    const auto TARGET_IMAGE_DESCRIPTION = [&] {
+        // if we are CM'ing back, use default sRGB
+        if (data.cmBackToSRGB)
+            return DEFAULT_IMAGE_DESCRIPTION;
+
+        // for final CM, use the target description
+        if (data.finalMonitorCM)
+            return m_renderData.pMonitor->m_imageDescription;
+        // otherwise, use chosen, we're drawing into the work buffer
+        // NOLINTNEXTLINE
+        return WORK_BUFFER_IMAGE_DESCRIPTION;
+    }();
+
+    if (data.blur && *PBLEND && data.blurredBG)
+        shaderFeatures |= SH_FEAT_BLUR;
+
+    if (data.discardActive)
+        shaderFeatures |= SH_FEAT_DISCARD;
+
+    const bool CANT_CHECK_CM_EQUALITY = data.cmBackToSRGB || data.finalMonitorCM || (!m_renderData.surface || !m_renderData.surface->m_colorManagement);
+
+    const bool skipCM = !*PENABLECM || !m_cmSupported                                                    /* CM unsupported or disabled */
+        || m_renderData.pMonitor->doesNoShaderCM()                                                       /* no shader needed */
+        || (SOURCE_IMAGE_DESCRIPTION->id() == TARGET_IMAGE_DESCRIPTION->id() && !CANT_CHECK_CM_EQUALITY) /* Source and target have the same image description */
+        || (((*PPASS && canPassHDRSurface) ||
+             (*PPASS == 1 && !isHDRSurface && m_renderData.pMonitor->m_cmType != NCMType::CM_HDR && m_renderData.pMonitor->m_cmType != NCMType::CM_HDR_EDID)) &&
+            m_renderData.pMonitor->inFullscreenMode()) /* Fullscreen window with pass cm enabled */;
+
+    if (data.allowDim && m_renderData.currentWindow && (m_renderData.currentWindow->m_notRespondingTint->value() > 0 || m_renderData.currentWindow->m_dimPercent->value() > 0))
+        shaderFeatures |= SH_FEAT_TINT;
+
+    if (data.round > 0)
+        shaderFeatures |= SH_FEAT_ROUNDING;
+
+    if (!skipCM) {
+        shaderFeatures |= SH_FEAT_CM;
+
+        if (TARGET_IMAGE_DESCRIPTION->value().icc.present)
+            shaderFeatures |= SH_FEAT_ICC;
+        else {
+            const bool  needsSDRmod     = isSDR2HDR(SOURCE_IMAGE_DESCRIPTION->value(), TARGET_IMAGE_DESCRIPTION->value());
+            const bool  needsHDRmod     = !needsSDRmod && isHDR2SDR(SOURCE_IMAGE_DESCRIPTION->value(), TARGET_IMAGE_DESCRIPTION->value());
+            const float maxLuminance    = needsHDRmod ?
+                   SOURCE_IMAGE_DESCRIPTION->value().getTFMaxLuminance(-1) :
+                   (SOURCE_IMAGE_DESCRIPTION->value().luminances.max > 0 ? SOURCE_IMAGE_DESCRIPTION->value().luminances.max : SOURCE_IMAGE_DESCRIPTION->value().luminances.reference);
+            const auto  dstMaxLuminance = TARGET_IMAGE_DESCRIPTION->value().luminances.max > 0 ? TARGET_IMAGE_DESCRIPTION->value().luminances.max : 10000;
+
+            if (maxLuminance >= dstMaxLuminance * 1.01)
+                shaderFeatures |= SH_FEAT_TONEMAP;
+
+            if (data.finalMonitorCM &&
+                (SOURCE_IMAGE_DESCRIPTION->value().transferFunction == CM_TRANSFER_FUNCTION_SRGB ||
+                 SOURCE_IMAGE_DESCRIPTION->value().transferFunction == CM_TRANSFER_FUNCTION_GAMMA22) &&
+                TARGET_IMAGE_DESCRIPTION->value().transferFunction == CM_TRANSFER_FUNCTION_ST2084_PQ &&
+                ((m_renderData.pMonitor->m_sdrSaturation > 0 && m_renderData.pMonitor->m_sdrSaturation != 1.0f) ||
+                 (m_renderData.pMonitor->m_sdrBrightness > 0 && m_renderData.pMonitor->m_sdrBrightness != 1.0f)))
+                shaderFeatures |= SH_FEAT_SDR_MOD;
+        }
+    }
+
+    if (!shader)
+        shader = getShaderVariant(SH_FRAG_SURFACE, shaderFeatures);
+    shader = useShader(shader);
+
+    if (!skipCM) {
+        if (data.finalMonitorCM || data.cmBackToSRGB)
+            passCMUniforms(shader, SOURCE_IMAGE_DESCRIPTION, TARGET_IMAGE_DESCRIPTION, true, m_renderData.pMonitor->m_sdrMinLuminance, m_renderData.pMonitor->m_sdrMaxLuminance);
+        else
+            passCMUniforms(shader, SOURCE_IMAGE_DESCRIPTION);
+    }
+
     shader->setUniformFloat(SHADER_ALPHA, alpha);
 
+    if (shaderFeatures & SH_FEAT_BLUR) {
+        shader->setUniformInt(SHADER_BLURRED_BG, 1);
+        // shader->setUniformFloat2(SHADER_UV_OFFSET, 0, 0);
+        shader->setUniformFloat2(SHADER_UV_OFFSET, newBox.x / m_renderData.pMonitor->m_transformedSize.x, newBox.y / m_renderData.pMonitor->m_transformedSize.y);
+        shader->setUniformFloat2(SHADER_UV_SIZE, newBox.width / m_renderData.pMonitor->m_transformedSize.x, newBox.height / m_renderData.pMonitor->m_transformedSize.y);
+
+        glActiveTexture(GL_TEXTURE0 + 1);
+        data.blurredBG->bind();
+    }
+
     if (data.discardActive) {
         shader->setUniformInt(SHADER_DISCARD_OPAQUE, !!(m_renderData.discardMode & DISCARD_OPAQUE));
         shader->setUniformInt(SHADER_DISCARD_ALPHA, !!(m_renderData.discardMode & DISCARD_ALPHA));
@@ -1612,7 +1437,6 @@ void CHyprOpenGLImpl::renderTextureInternal(SP<CTexture> tex, const CBox& box, c
 
     const auto TOPLEFT  = Vector2D(transformedBox.x, transformedBox.y);
     const auto FULLSIZE = Vector2D(transformedBox.width, transformedBox.height);
-
     // Rounded corners
     shader->setUniformFloat2(SHADER_TOP_LEFT, TOPLEFT.x, TOPLEFT.y);
     shader->setUniformFloat2(SHADER_FULL_SIZE, FULLSIZE.x, FULLSIZE.y);
@@ -1633,8 +1457,53 @@ void CHyprOpenGLImpl::renderTextureInternal(SP<CTexture> tex, const CBox& box, c
     } else
         shader->setUniformInt(SHADER_APPLY_TINT, 0);
 
-    glBindVertexArray(shader->getUniformLocation(SHADER_SHADER_VAO));
+    return shader;
-    glBindBuffer(GL_ARRAY_BUFFER, shader->getUniformLocation(SHADER_SHADER_VBO));
+}
+
+void CHyprOpenGLImpl::renderTextureInternal(SP<CTexture> tex, const CBox& box, const STextureRenderData& data) {
+    RASSERT(m_renderData.pMonitor, "Tried to render texture without begin()!");
+    RASSERT((tex->m_texID > 0), "Attempted to draw nullptr texture!");
+
+    TRACY_GPU_ZONE("RenderTextureInternalWithDamage");
+
+    if (data.damage->empty())
+        return;
+
+    CBox newBox = box;
+    m_renderData.renderModif.applyToBox(newBox);
+
+    // get the needed transform for this texture
+    const auto                  MONITOR_INVERTED = Math::wlTransformToHyprutils(Math::invertTransform(m_renderData.pMonitor->m_transform));
+    Hyprutils::Math::eTransform TRANSFORM        = tex->m_transform;
+
+    if (m_monitorTransformEnabled)
+        TRANSFORM = Math::composeTransform(MONITOR_INVERTED, TRANSFORM);
+
+    Mat3x3     matrix   = m_renderData.monitorProjection.projectBox(newBox, TRANSFORM, newBox.rot);
+    Mat3x3     glMatrix = m_renderData.projection.copy().multiply(matrix);
+
+    const bool renderToOutput = m_applyFinalShader && g_pHyprRenderer->workBufferImageDescription()->id() == m_renderData.pMonitor->m_imageDescription->id();
+
+    glActiveTexture(GL_TEXTURE0);
+    tex->bind();
+
+    tex->setTexParameter(GL_TEXTURE_WRAP_S, data.wrapX);
+    tex->setTexParameter(GL_TEXTURE_WRAP_T, data.wrapY);
+
+    if (m_renderData.useNearestNeighbor) {
+        tex->setTexParameter(GL_TEXTURE_MAG_FILTER, GL_NEAREST);
+        tex->setTexParameter(GL_TEXTURE_MIN_FILTER, GL_NEAREST);
+    } else {
+        tex->setTexParameter(GL_TEXTURE_MAG_FILTER, tex->magFilter);
+        tex->setTexParameter(GL_TEXTURE_MIN_FILTER, tex->minFilter);
+    }
+
+    auto shader = renderToOutput ? renderToOutputInternal() : renderToFBInternal(data, tex->m_type, newBox);
+
+    shader->setUniformMatrix3fv(SHADER_PROJ, 1, GL_TRUE, glMatrix.getMatrix());
+    shader->setUniformInt(SHADER_TEX, 0);
+    GLCALL(glBindVertexArray(shader->getUniformLocation(SHADER_SHADER_VAO)));
+    GLCALL(glBindBuffer(GL_ARRAY_BUFFER, shader->getUniformLocation(SHADER_SHADER_VBO)));
 
     // this tells GPU can keep reading the old block for previous draws while the CPU writes to a new one.
     // to avoid stalls if renderTextureInternal is called multiple times on same renderpass
@@ -1719,7 +1588,7 @@ void CHyprOpenGLImpl::renderTexturePrimitive(SP<CTexture> tex, const CBox& box)
         tex->setTexParameter(GL_TEXTURE_MIN_FILTER, tex->minFilter);
     }
 
-    auto shader = useShader(m_shaders->frag[SH_FRAG_PASSTHRURGBA]);
+    auto shader = useShader(getShaderVariant(SH_FRAG_PASSTHRURGBA));
     shader->setUniformMatrix3fv(SHADER_PROJ, 1, GL_TRUE, glMatrix.getMatrix());
     shader->setUniformInt(SHADER_TEX, 0);
     glBindVertexArray(shader->getUniformLocation(SHADER_SHADER_VAO));
@@ -1751,7 +1620,7 @@ void CHyprOpenGLImpl::renderTextureMatte(SP<CTexture> tex, const CBox& box, CFra
     Mat3x3     matrix    = m_renderData.monitorProjection.projectBox(newBox, TRANSFORM, newBox.rot);
     Mat3x3     glMatrix  = m_renderData.projection.copy().multiply(matrix);
 
-    auto       shader = useShader(m_shaders->frag[SH_FRAG_MATTE]);
+    auto       shader = useShader(getShaderVariant(SH_FRAG_MATTE));
     shader->setUniformMatrix3fv(SHADER_PROJ, 1, GL_TRUE, glMatrix.getMatrix());
     shader->setUniformInt(SHADER_TEX, 0);
     shader->setUniformInt(SHADER_ALPHA_MATTE, 1);
@@ -1826,6 +1695,7 @@ CFramebuffer* CHyprOpenGLImpl::blurFramebufferWithDamage(float a, CRegion* origi
     {
         static auto PBLURCONTRAST   = CConfigValue<Hyprlang::FLOAT>("decoration:blur:contrast");
         static auto PBLURBRIGHTNESS = CConfigValue<Hyprlang::FLOAT>("decoration:blur:brightness");
+        static auto PBLEND          = CConfigValue<Hyprlang::INT>("render:use_shader_blur_blend");
 
         PMIRRORSWAPFB->bind();
 
@@ -1838,7 +1708,26 @@ CFramebuffer* CHyprOpenGLImpl::blurFramebufferWithDamage(float a, CRegion* origi
 
         WP<CShader> shader;
 
-        shader = useShader(m_shaders->frag[SH_FRAG_BLURPREPARE]);
+        // From FB to sRGB
+        const bool skipCM = !m_cmSupported || g_pHyprRenderer->workBufferImageDescription()->id() == DEFAULT_IMAGE_DESCRIPTION->id();
+        if (!skipCM) {
+            shader = useShader(getShaderVariant(SH_FRAG_BLURPREPARE, SH_FEAT_CM));
+            passCMUniforms(shader, m_renderData.pMonitor->m_imageDescription, DEFAULT_IMAGE_DESCRIPTION);
+            shader->setUniformFloat(SHADER_SDR_SATURATION,
+                                    m_renderData.pMonitor->m_sdrSaturation > 0 &&
+                                            m_renderData.pMonitor->m_imageDescription->value().transferFunction == NColorManagement::CM_TRANSFER_FUNCTION_ST2084_PQ ?
+                                        m_renderData.pMonitor->m_sdrSaturation :
+                                        1.0f);
+            shader->setUniformFloat(SHADER_SDR_BRIGHTNESS,
+                                    m_renderData.pMonitor->m_sdrBrightness > 0 &&
+                                            m_renderData.pMonitor->m_imageDescription->value().transferFunction == NColorManagement::CM_TRANSFER_FUNCTION_ST2084_PQ ?
+                                        m_renderData.pMonitor->m_sdrBrightness :
+                                        1.0f);
+        } else
+            shader = useShader(getShaderVariant(SH_FRAG_BLURPREPARE));
+
+        Mat3x3 matrix   = m_renderData.monitorProjection.projectBox(MONITORBOX, *PBLEND ? HYPRUTILS_TRANSFORM_NORMAL : TRANSFORM);
+        Mat3x3 glMatrix = m_renderData.projection.copy().multiply(matrix);
         shader->setUniformMatrix3fv(SHADER_PROJ, 1, GL_TRUE, glMatrix.getMatrix());
         shader->setUniformFloat(SHADER_CONTRAST, *PBLURCONTRAST);
         shader->setUniformFloat(SHADER_BRIGHTNESS, *PBLURBRIGHTNESS);
@@ -1910,13 +1799,13 @@ CFramebuffer* CHyprOpenGLImpl::blurFramebufferWithDamage(float a, CRegion* origi
     CRegion tempDamage{damage};
 
     // and draw
-    auto shader = useShader(m_shaders->frag[SH_FRAG_BLUR1]);
+    auto shader = useShader(getShaderVariant(SH_FRAG_BLUR1));
     for (auto i = 1; i <= BLUR_PASSES; ++i) {
         tempDamage = damage.copy().scale(1.f / (1 << i));
         drawPass(shader, SH_FRAG_BLUR1, &tempDamage); // down
     }
 
-    shader = useShader(m_shaders->frag[SH_FRAG_BLUR2]);
+    shader = useShader(getShaderVariant(SH_FRAG_BLUR2));
     for (auto i = BLUR_PASSES - 1; i >= 0; --i) {
         tempDamage = damage.copy().scale(1.f / (1 << i)); // when upsampling we make the region twice as big
         drawPass(shader, SH_FRAG_BLUR2, &tempDamage);     // up
@@ -1940,7 +1829,7 @@ CFramebuffer* CHyprOpenGLImpl::blurFramebufferWithDamage(float a, CRegion* origi
 
         currentTex->setTexParameter(GL_TEXTURE_MIN_FILTER, GL_LINEAR);
 
-        auto shader = useShader(m_shaders->frag[SH_FRAG_BLURFINISH]);
+        auto shader = useShader(getShaderVariant(SH_FRAG_BLURFINISH));
         shader->setUniformMatrix3fv(SHADER_PROJ, 1, GL_TRUE, glMatrix.getMatrix());
         shader->setUniformFloat(SHADER_NOISE, *PBLURNOISE);
         shader->setUniformFloat(SHADER_BRIGHTNESS, *PBLURBRIGHTNESS);
@@ -2132,6 +2021,8 @@ void CHyprOpenGLImpl::renderTextureWithBlurInternal(SP<CTexture> tex, const CBox
 
     TRACY_GPU_ZONE("RenderTextureWithBlur");
 
+    static auto PBLEND = CConfigValue<Hyprlang::INT>("render:use_shader_blur_blend");
+
     // make a damage region for this window
     CRegion texDamage{m_renderData.damage};
     texDamage.intersect(box.x, box.y, box.width, box.height);
@@ -2178,7 +2069,10 @@ void CHyprOpenGLImpl::renderTextureWithBlurInternal(SP<CTexture> tex, const CBox
 
     m_renderData.currentFB->bind();
 
-    const auto NEEDS_STENCIL = m_renderData.discardMode != 0;
+    auto       blurredBG = POUTFB->getTexture();
+
+    const auto NEEDS_STENCIL = m_renderData.discardMode != 0 && (!data.blockBlurOptimization || (m_renderData.discardMode & DISCARD_ALPHA));
+    if (!*PBLEND) {
 
         if (NEEDS_STENCIL) {
             scissor(nullptr); // allow the entire window and stencil to render
@@ -2191,9 +2085,6 @@ void CHyprOpenGLImpl::renderTextureWithBlurInternal(SP<CTexture> tex, const CBox
             glStencilOp(GL_KEEP, GL_KEEP, GL_REPLACE);
 
             glColorMask(GL_FALSE, GL_FALSE, GL_FALSE, GL_FALSE);
-        if (USENEWOPTIMIZE && !(m_renderData.discardMode & DISCARD_ALPHA))
-            renderRect(box, CHyprColor(0, 0, 0, 0), SRectRenderData{.round = data.round, .roundingPower = data.roundingPower});
-        else
             renderTexture(tex, box,
                           STextureRenderData{.a             = data.a,
                                              .round         = data.round,
@@ -2201,7 +2092,8 @@ void CHyprOpenGLImpl::renderTextureWithBlurInternal(SP<CTexture> tex, const CBox
                                              .discardActive = true,
                                              .allowCustomUV = true,
                                              .wrapX         = data.wrapX,
-                                             .wrapY         = data.wrapY}); // discard opaque
+                                             .wrapY         = data.wrapY}); // discard opaque and alpha < discardOpacity
+
             glColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE);
 
             glStencilFunc(GL_EQUAL, 1, 0xFF);
@@ -2226,9 +2118,10 @@ void CHyprOpenGLImpl::renderTextureWithBlurInternal(SP<CTexture> tex, const CBox
 
         static auto PBLURIGNOREOPACITY = CConfigValue<Hyprlang::INT>("decoration:blur:ignore_opacity");
         pushMonitorTransformEnabled(true);
+        bool renderModif = m_renderData.renderModif.enabled;
         if (!USENEWOPTIMIZE)
             setRenderModifEnabled(false);
-    renderTextureInternal(POUTFB->getTexture(), box,
+        renderTextureInternal(blurredBG, box,
                               STextureRenderData{
                                   .damage        = &texDamage,
                                   .a             = (*PBLURIGNOREOPACITY ? data.blurA : data.a * data.blurA) * data.overallA,
@@ -2241,26 +2134,31 @@ void CHyprOpenGLImpl::renderTextureWithBlurInternal(SP<CTexture> tex, const CBox
                                   .wrapY         = data.wrapY,
                               });
         if (!USENEWOPTIMIZE)
-        setRenderModifEnabled(true);
+            setRenderModifEnabled(renderModif);
         popMonitorTransformEnabled();
 
+        if (NEEDS_STENCIL)
+            setCapStatus(GL_STENCIL_TEST, false);
+
         m_renderData.primarySurfaceUVTopLeft     = LASTTL;
         m_renderData.primarySurfaceUVBottomRight = LASTBR;
+    }
 
     // draw window
-    setCapStatus(GL_STENCIL_TEST, false);
     renderTextureInternal(tex, box,
                           STextureRenderData{
                               .damage        = &texDamage,
                               .a             = data.a * data.overallA,
+                              .blur          = *PBLEND,
                               .round         = data.round,
                               .roundingPower = data.roundingPower,
-                              .discardActive = false,
+                              .discardActive = *PBLEND && NEEDS_STENCIL,
                               .allowCustomUV = true,
                               .allowDim      = true,
                               .noAA          = false,
                               .wrapX         = data.wrapX,
                               .wrapY         = data.wrapY,
+                              .blurredBG     = blurredBG,
                           });
 
     m_renderData.currentFB->invalidate({GL_STENCIL_ATTACHMENT});
@@ -2300,7 +2198,15 @@ void CHyprOpenGLImpl::renderBorder(const CBox& box, const CGradientValueData& gr
     const auto BLEND = m_blend;
     blend(true);
 
-    WP<CShader> shader = useShader(m_shaders->frag[SH_FRAG_BORDER1]);
+    WP<CShader> shader;
+
+    const bool  IS_ICC = g_pHyprRenderer->workBufferImageDescription()->value().icc.present;
+    const bool  skipCM = !m_cmSupported || g_pHyprRenderer->workBufferImageDescription()->id() == DEFAULT_IMAGE_DESCRIPTION->id();
+    if (!skipCM) {
+        shader = useShader(getShaderVariant(SH_FRAG_BORDER1, SH_FEAT_ROUNDING | SH_FEAT_CM | (IS_ICC ? SH_FEAT_ICC : SH_FEAT_TONEMAP | SH_FEAT_SDR_MOD)));
+        passCMUniforms(shader, DEFAULT_IMAGE_DESCRIPTION);
+    } else
+        shader = useShader(getShaderVariant(SH_FRAG_BORDER1, SH_FEAT_ROUNDING));
 
     shader->setUniformMatrix3fv(SHADER_PROJ, 1, GL_TRUE, glMatrix.getMatrix());
     shader->setUniform4fv(SHADER_GRADIENT, grad.m_colorsOkLabA.size() / 4, grad.m_colorsOkLabA);
@@ -2379,7 +2285,14 @@ void CHyprOpenGLImpl::renderBorder(const CBox& box, const CGradientValueData& gr
     const auto BLEND = m_blend;
     blend(true);
 
-    WP<CShader> shader = useShader(m_shaders->frag[SH_FRAG_BORDER1]);
+    WP<CShader> shader;
+    const bool  IS_ICC = g_pHyprRenderer->workBufferImageDescription()->value().icc.present;
+    const bool  skipCM = !m_cmSupported || g_pHyprRenderer->workBufferImageDescription()->id() == DEFAULT_IMAGE_DESCRIPTION->id();
+    if (!skipCM) {
+        shader = useShader(getShaderVariant(SH_FRAG_BORDER1, SH_FEAT_ROUNDING | SH_FEAT_CM | (IS_ICC ? SH_FEAT_ICC : SH_FEAT_TONEMAP | SH_FEAT_SDR_MOD)));
+        passCMUniforms(shader, DEFAULT_IMAGE_DESCRIPTION);
+    } else
+        shader = useShader(getShaderVariant(SH_FRAG_BORDER1, SH_FEAT_ROUNDING));
 
     shader->setUniformMatrix3fv(SHADER_PROJ, 1, GL_TRUE, glMatrix.getMatrix());
     shader->setUniform4fv(SHADER_GRADIENT, grad1.m_colorsOkLabA.size() / 4, grad1.m_colorsOkLabA);
@@ -2452,7 +2365,11 @@ void CHyprOpenGLImpl::renderRoundedShadow(const CBox& box, int round, float roun
 
     blend(true);
 
-    auto shader = useShader(m_shaders->frag[SH_FRAG_SHADOW]);
+    const bool IS_ICC = g_pHyprRenderer->workBufferImageDescription()->value().icc.present;
+    const bool skipCM = !m_cmSupported || g_pHyprRenderer->workBufferImageDescription()->id() == DEFAULT_IMAGE_DESCRIPTION->id();
+    auto       shader = useShader(getShaderVariant(SH_FRAG_SHADOW, skipCM ? 0 : SH_FEAT_CM | (IS_ICC ? SH_FEAT_ICC : SH_FEAT_TONEMAP | SH_FEAT_SDR_MOD)));
+    if (!skipCM)
+        passCMUniforms(shader, DEFAULT_IMAGE_DESCRIPTION);
 
     shader->setUniformMatrix3fv(SHADER_PROJ, 1, GL_TRUE, glMatrix.getMatrix());
     shader->setUniformFloat4(SHADER_COLOR, col.r, col.g, col.b, col.a * a);
@@ -3141,53 +3058,23 @@ bool CHyprOpenGLImpl::explicitSyncSupported() {
     return m_exts.EGL_ANDROID_native_fence_sync_ext;
 }
 
-WP<CShader> CHyprOpenGLImpl::getSurfaceShader(uint8_t features) {
+WP<CShader> CHyprOpenGLImpl::getShaderVariant(ePreparedFragmentShader frag, ShaderFeatureFlags features) {
-    if (!m_shaders->fragVariants.contains(features)) {
+    if (!m_shaders->fragVariants[frag].contains(features)) {
-
         auto shader = makeShared<CShader>();
-        auto includes                  = m_includes;
-        includes["get_rgb_pixel.glsl"] = includes[features & SH_FEAT_RGBA ? "get_rgba_pixel.glsl" : "get_rgbx_pixel.glsl"];
-        if (!(features & SH_FEAT_DISCARD)) {
-            includes["discard.glsl"]    = "";
-            includes["do_discard.glsl"] = "";
-        }
-        if (!(features & SH_FEAT_TINT)) {
-            includes["tint.glsl"]    = "";
-            includes["do_tint.glsl"] = "";
-        }
-        if (!(features & SH_FEAT_ROUNDING)) {
-            includes["rounding.glsl"]    = "";
-            includes["do_rounding.glsl"] = "";
-        }
-        if (!(features & SH_FEAT_CM)) {
-            includes["surface_CM.glsl"] = "";
-            includes["CM.glsl"]         = "";
-            includes["do_CM.glsl"]      = "";
-        }
-        if (!(features & SH_FEAT_TONEMAP)) {
-            includes["tonemap.glsl"]    = "";
-            includes["do_tonemap.glsl"] = "";
-        }
-        if (!(features & SH_FEAT_SDR_MOD)) {
-            includes["sdr_mod.glsl"]    = "";
-            includes["do_sdr_mod.glsl"] = "";
-        }
-        if (!(features & SH_FEAT_TONEMAP || features & SH_FEAT_SDR_MOD))
-            includes["primaries_xyz.glsl"] = includes["primaries_xyz_const.glsl"];
 
-        Log::logger->log(Log::INFO, "getSurfaceShader: compiling feature set {}", features);
+        Log::logger->log(Log::INFO, "compiling feature set {} for {}", features, FRAG_SHADERS[frag]);
-        const auto fragSrc = processShader("surface.frag", includes, MAX_INCLUDE_DEPTH);
+
-        if (shader->createProgram(m_shaders->TEXVERTSRC, fragSrc, true, true)) {
+        const auto fragSrc = g_pShaderLoader->getVariantSource(frag, features);
-            m_shaders->fragVariants[features] = shader;
+
+        if (!shader->createProgram(m_shaders->TEXVERTSRC, fragSrc, true, true))
+            Log::logger->log(Log::ERR, "shader features {} failed for {}", features, FRAG_SHADERS[frag]);
+
+        m_shaders->fragVariants[frag][features] = shader;
         return shader;
-        } else {
-            Log::logger->log(Log::ERR, "getSurfaceShader failed for {}. Falling back to old branching", features);
-            m_shaders->fragVariants[features] = nullptr;
-        }
     }
 
-    ASSERT(m_shaders->fragVariants[features]);
+    ASSERT(m_shaders->fragVariants[frag][features]);
-    return m_shaders->fragVariants[features];
+    return m_shaders->fragVariants[frag][features];
 }
 
 std::vector<SDRMFormat> CHyprOpenGLImpl::getDRMFormats() {

src/render/OpenGL.hpp

@@ -31,6 +31,7 @@
 
 #include "../debug/TracyDefines.hpp"
 #include "../protocols/core/Compositor.hpp"
+#include "render/ShaderLoader.hpp"
 
 struct gbm_device;
 class CHyprRenderer;
@@ -87,54 +88,23 @@ enum eMonitorExtraRenderFBs : uint8_t {
     FB_MONITOR_RENDER_EXTRA_BLUR,
 };
 
-enum ePreparedFragmentShader : uint8_t {
-    SH_FRAG_QUAD = 0,
-    SH_FRAG_PASSTHRURGBA,
-    SH_FRAG_MATTE,
-    SH_FRAG_EXT,
-    SH_FRAG_BLUR1,
-    SH_FRAG_BLUR2,
-    SH_FRAG_CM_BLURPREPARE,
-    SH_FRAG_BLURPREPARE,
-    SH_FRAG_BLURFINISH,
-    SH_FRAG_SHADOW,
-    SH_FRAG_CM_BORDER1,
-    SH_FRAG_BORDER1,
-    SH_FRAG_GLITCH,
-
-    SH_FRAG_LAST,
-};
-
-enum ePreparedFragmentShaderFeature : uint8_t {
-    SH_FEAT_UNKNOWN = 0, // all features just in case
-
-    SH_FEAT_RGBA     = (1 << 0), // RGBA/RGBX texture sampling
-    SH_FEAT_DISCARD  = (1 << 1), // RGBA/RGBX texture sampling
-    SH_FEAT_TINT     = (1 << 2), // uniforms: tint; condition: applyTint
-    SH_FEAT_ROUNDING = (1 << 3), // uniforms: radius, roundingPower, topLeft, fullSize; condition: radius > 0
-    SH_FEAT_CM       = (1 << 4), // uniforms: srcTFRange, dstTFRange, srcRefLuminance, convertMatrix; condition: !skipCM
-    SH_FEAT_TONEMAP  = (1 << 5), // uniforms: maxLuminance, dstMaxLuminance, dstRefLuminance; condition: maxLuminance < dstMaxLuminance * 1.01
-    SH_FEAT_SDR_MOD  = (1 << 6), // uniforms: sdrSaturation, sdrBrightnessMultiplier; condition: SDR <-> HDR && (sdrSaturation != 1 || sdrBrightnessMultiplier != 1)
-
-    // uniforms: targetPrimariesXYZ; condition: SH_FEAT_TONEMAP || SH_FEAT_SDR_MOD
-};
-
 struct SFragShaderDesc {
-    ePreparedFragmentShader id;
+    Render::ePreparedFragmentShader id;
     const char*                     file;
 };
 
 struct SPreparedShaders {
-    SPreparedShaders() {
+    // SPreparedShaders() {
-        for (auto& f : frag) {
+    //     for (auto& f : frag) {
-            f = makeShared<CShader>();
+    //         f = makeShared<CShader>();
-        }
+    //     }
-    }
+    // }
 
     std::string TEXVERTSRC;
     std::string TEXVERTSRC320;
-    std::array<SP<CShader>, SH_FRAG_LAST> frag;
+    // std::array<SP<CShader>, SH_FRAG_LAST> frag;
-    std::map<uint8_t, SP<CShader>>        fragVariants;
+    // std::map<uint8_t, SP<CShader>>        fragVariants;
+    std::array<std::map<Render::ShaderFeatureFlags, SP<CShader>>, Render::SH_FRAG_LAST> fragVariants;
 };
 
 struct SMonitorRenderData {
@@ -242,6 +212,8 @@ class CHyprOpenGLImpl {
         bool                   cmBackToSRGB   = false;
         bool                   noCM           = false;
         bool                   finalMonitorCM = false;
+        SP<CMonitor>           cmBackToSRGBSource;
+        SP<CTexture>           blurredBG;
     };
 
     struct SBorderRenderData {
@@ -316,18 +288,15 @@ class CHyprOpenGLImpl {
     std::vector<uint64_t>                             getDRMFormatModifiers(DRMFormat format);
     EGLImageKHR                                       createEGLImage(const Aquamarine::SDMABUFAttrs& attrs);
 
-    bool                                              initShaders();
+    bool                                              initShaders(const std::string& path = "");
 
     WP<CShader>                                       useShader(WP<CShader> prog);
 
-    void                                              ensureLockTexturesRendered(bool load);
-
     bool                                              explicitSyncSupported();
-    WP<CShader>                                       getSurfaceShader(uint8_t features);
+    WP<CShader>                                       getShaderVariant(Render::ePreparedFragmentShader frag, Render::ShaderFeatureFlags features = 0);
 
     bool                                              m_shadersInitialized = false;
     SP<SPreparedShaders>                              m_shaders;
-    std::map<std::string, std::string>                m_includes;
 
     SCurrentRenderData                                m_renderData;
 
@@ -431,6 +400,7 @@ class CHyprOpenGLImpl {
     void                              initEGL(bool gbm);
     EGLDeviceEXT                      eglDeviceFromDRMFD(int drmFD);
     void                              initAssets();
+    void                              ensureLockTexturesRendered(bool load);
     void                              initMissingAssetTexture();
     void                              requestBackgroundResource();
 
@@ -454,6 +424,8 @@ class CHyprOpenGLImpl {
     void          renderRectInternal(const CBox&, const CHyprColor&, const SRectRenderData& data);
     void          renderRectWithBlurInternal(const CBox&, const CHyprColor&, const SRectRenderData& data);
     void          renderRectWithDamageInternal(const CBox&, const CHyprColor&, const SRectRenderData& data);
+    WP<CShader>   renderToOutputInternal();
+    WP<CShader>   renderToFBInternal(const STextureRenderData& data, eTextureType texType, const CBox& newBox);
     void          renderTextureInternal(SP<CTexture>, const CBox&, const STextureRenderData& data);
     void          renderTextureWithBlurInternal(SP<CTexture>, const CBox&, const STextureRenderData& data);
 

src/render/Renderbuffer.cpp

@@ -41,6 +41,7 @@ CRenderbuffer::CRenderbuffer(SP<Aquamarine::IBuffer> buffer, uint32_t format) :
     glGenFramebuffers(1, &m_framebuffer.m_fb);
     m_framebuffer.m_fbAllocated = true;
     m_framebuffer.m_size        = buffer->size;
+    m_framebuffer.m_drmFormat   = dma.format;
     m_framebuffer.bind();
     glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_RENDERBUFFER, m_rbo);
 

src/render/Renderer.cpp

@@ -32,6 +32,7 @@
 #include "../event/EventBus.hpp"
 #include "helpers/CursorShapes.hpp"
 #include "helpers/Monitor.hpp"
+#include "helpers/cm/ColorManagement.hpp"
 #include "pass/TexPassElement.hpp"
 #include "pass/ClearPassElement.hpp"
 #include "pass/RectPassElement.hpp"
@@ -41,7 +42,6 @@
 #include "../protocols/ColorManagement.hpp"
 #include "../protocols/types/ContentType.hpp"
 #include "../helpers/MiscFunctions.hpp"
-#include "../event/EventBus.hpp"
 #include "render/OpenGL.hpp"
 
 #include <hyprutils/utils/ScopeGuard.hpp>
@@ -1260,6 +1260,79 @@ void CHyprRenderer::calculateUVForSurface(PHLWINDOW pWindow, SP<CWLSurfaceResour
     }
 }
 
+static bool isSDR2HDR(const NColorManagement::SImageDescription& imageDescription, const NColorManagement::SImageDescription& targetImageDescription) {
+    // might be too strict
+    return (imageDescription.transferFunction == NColorManagement::CM_TRANSFER_FUNCTION_SRGB ||
+            imageDescription.transferFunction == NColorManagement::CM_TRANSFER_FUNCTION_GAMMA22) &&
+        (targetImageDescription.transferFunction == NColorManagement::CM_TRANSFER_FUNCTION_ST2084_PQ ||
+         targetImageDescription.transferFunction == NColorManagement::CM_TRANSFER_FUNCTION_HLG);
+}
+
+static bool isHDR2SDR(const NColorManagement::SImageDescription& imageDescription, const NColorManagement::SImageDescription& targetImageDescription) {
+    // might be too strict
+    return (imageDescription.transferFunction == NColorManagement::CM_TRANSFER_FUNCTION_ST2084_PQ ||
+            imageDescription.transferFunction == NColorManagement::CM_TRANSFER_FUNCTION_HLG) &&
+        (targetImageDescription.transferFunction == NColorManagement::CM_TRANSFER_FUNCTION_SRGB ||
+         targetImageDescription.transferFunction == NColorManagement::CM_TRANSFER_FUNCTION_GAMMA22);
+}
+
+SCMSettings CHyprRenderer::getCMSettings(const NColorManagement::PImageDescription imageDescription, const NColorManagement::PImageDescription targetImageDescription,
+                                         SP<CWLSurfaceResource> surface, bool modifySDR, float sdrMinLuminance, int sdrMaxLuminance) {
+    const auto                          sdrEOTF = NTransferFunction::fromConfig();
+    NColorManagement::eTransferFunction srcTF;
+
+    auto&                               m_renderData = g_pHyprOpenGL->m_renderData;
+    if (m_renderData.surface.valid()) {
+        if (m_renderData.surface->m_colorManagement.valid()) {
+            if (sdrEOTF == NTransferFunction::TF_FORCED_GAMMA22 && imageDescription->value().transferFunction == NColorManagement::eTransferFunction::CM_TRANSFER_FUNCTION_SRGB)
+                srcTF = NColorManagement::eTransferFunction::CM_TRANSFER_FUNCTION_GAMMA22;
+            else
+                srcTF = imageDescription->value().transferFunction;
+        } else if (sdrEOTF == NTransferFunction::TF_SRGB)
+            srcTF = NColorManagement::eTransferFunction::CM_TRANSFER_FUNCTION_SRGB;
+        else if (sdrEOTF == NTransferFunction::TF_GAMMA22 || sdrEOTF == NTransferFunction::TF_FORCED_GAMMA22)
+            srcTF = NColorManagement::eTransferFunction::CM_TRANSFER_FUNCTION_GAMMA22;
+        else
+            srcTF = imageDescription->value().transferFunction;
+    } else
+        srcTF = imageDescription->value().transferFunction;
+
+    const bool  needsSDRmod     = modifySDR && isSDR2HDR(imageDescription->value(), targetImageDescription->value());
+    const bool  needsHDRmod     = !needsSDRmod && isHDR2SDR(imageDescription->value(), targetImageDescription->value());
+    const float maxLuminance    = needsHDRmod ?
+           imageDescription->value().getTFMaxLuminance(-1) :
+           (imageDescription->value().luminances.max > 0 ? imageDescription->value().luminances.max : imageDescription->value().luminances.reference);
+    const auto  dstMaxLuminance = targetImageDescription->value().luminances.max > 0 ? targetImageDescription->value().luminances.max : 10000;
+
+    auto        matrix = imageDescription->getPrimaries()->convertMatrix(targetImageDescription->getPrimaries());
+    auto        toXYZ  = targetImageDescription->getPrimaries()->value().toXYZ();
+
+    const bool needsMod = (imageDescription->value().transferFunction == CM_TRANSFER_FUNCTION_SRGB || imageDescription->value().transferFunction == CM_TRANSFER_FUNCTION_GAMMA22) &&
+        targetImageDescription->value().transferFunction == CM_TRANSFER_FUNCTION_ST2084_PQ &&
+        ((m_renderData.pMonitor->m_sdrSaturation > 0 && m_renderData.pMonitor->m_sdrSaturation != 1.0f) ||
+         (m_renderData.pMonitor->m_sdrBrightness > 0 && m_renderData.pMonitor->m_sdrBrightness != 1.0f));
+
+    return {
+        .sourceTF        = srcTF,
+        .targetTF        = targetImageDescription->value().transferFunction,
+        .srcTFRange      = {.min = imageDescription->value().getTFMinLuminance(needsSDRmod ? sdrMinLuminance : -1),
+                            .max = imageDescription->value().getTFMaxLuminance(needsSDRmod ? sdrMaxLuminance : -1)},
+        .dstTFRange      = {.min = targetImageDescription->value().getTFMinLuminance(needsSDRmod ? sdrMinLuminance : -1),
+                            .max = targetImageDescription->value().getTFMaxLuminance(needsSDRmod ? sdrMaxLuminance : -1)},
+        .srcRefLuminance = imageDescription->value().luminances.reference,
+        .dstRefLuminance = targetImageDescription->value().luminances.reference,
+        .convertMatrix   = matrix.mat(),
+
+        .needsTonemap            = maxLuminance >= dstMaxLuminance * 1.01,
+        .maxLuminance            = maxLuminance * targetImageDescription->value().luminances.reference / imageDescription->value().luminances.reference,
+        .dstMaxLuminance         = dstMaxLuminance,
+        .dstPrimaries2XYZ        = toXYZ.mat(),
+        .needsSDRmod             = needsMod,
+        .sdrSaturation           = needsSDRmod && m_renderData.pMonitor->m_sdrSaturation > 0 ? m_renderData.pMonitor->m_sdrSaturation : 1.0f,
+        .sdrBrightnessMultiplier = needsSDRmod && m_renderData.pMonitor->m_sdrBrightness > 0 ? m_renderData.pMonitor->m_sdrBrightness : 1.0f,
+    };
+}
+
 void CHyprRenderer::renderMonitor(PHLMONITOR pMonitor, bool commit) {
     static std::chrono::high_resolution_clock::time_point renderStart        = std::chrono::high_resolution_clock::now();
     static std::chrono::high_resolution_clock::time_point renderStartOverlay = std::chrono::high_resolution_clock::now();
@@ -2200,10 +2273,8 @@ std::tuple<float, float, float> CHyprRenderer::getRenderTimes(PHLMONITOR pMonito
     float      maxRenderTime = 0;
     float      minRenderTime = 9999;
     for (auto const& rt : POVERLAY->m_lastRenderTimes) {
-        if (rt > maxRenderTime)
+        maxRenderTime = std::max(rt, maxRenderTime);
-            maxRenderTime = rt;
+        minRenderTime = std::min(rt, minRenderTime);
-        if (rt < minRenderTime)
-            minRenderTime = rt;
         avgRenderTime += rt;
     }
     avgRenderTime /= POVERLAY->m_lastRenderTimes.empty() ? 1 : POVERLAY->m_lastRenderTimes.size();
@@ -2706,6 +2777,16 @@ void CHyprRenderer::renderSnapshot(WP<Desktop::View::CPopup> popup) {
     m_renderPass.add(makeUnique<CTexPassElement>(std::move(data)));
 }
 
+NColorManagement::PImageDescription CHyprRenderer::workBufferImageDescription() {
+    const auto& m_renderData = g_pHyprOpenGL->m_renderData;
+    // TODO
+    // const bool  IS_MONITOR_ICC  = m_renderData.pMonitor->m_imageDescription.valid() && m_renderData.pMonitor->m_imageDescription->value().icc.present;
+    // const auto  sdrEOTF         = NTransferFunction::fromConfig(IS_MONITOR_ICC);
+    // const auto  CHOSEN_SDR_EOTF = sdrEOTF != NTransferFunction::TF_SRGB ? NColorManagement::CM_TRANSFER_FUNCTION_GAMMA22 : NColorManagement::CM_TRANSFER_FUNCTION_SRGB;
+
+    return m_renderData.pMonitor->m_imageDescription; //CImageDescription::from(NColorManagement::SImageDescription{.transferFunction = CHOSEN_SDR_EOTF});
+}
+
 bool CHyprRenderer::shouldBlur(PHLLS ls) {
     if (m_bRenderingSnapshot)
         return false;
@@ -2729,3 +2810,7 @@ bool CHyprRenderer::shouldBlur(WP<Desktop::View::CPopup> p) {
 
     return *PBLURPOPUPS && *PBLUR;
 }
+
+bool CHyprRenderer::reloadShaders(const std::string& path) {
+    return g_pHyprOpenGL->initShaders(path);
+}

src/render/Renderer.hpp

@@ -1,7 +1,10 @@
 #pragma once
 
 #include "../defines.hpp"
+#include <hyprgraphics/color/Color.hpp>
+#include <hyprutils/math/Box.hpp>
 #include <list>
+#include <optional>
 #include "../helpers/Monitor.hpp"
 #include "../desktop/view/LayerSurface.hpp"
 #include "OpenGL.hpp"
@@ -10,12 +13,21 @@
 #include "../helpers/math/Math.hpp"
 #include "../helpers/time/Time.hpp"
 #include "../../protocols/cursor-shape-v1.hpp"
+#include "helpers/cm/ColorManagement.hpp"
 
 struct SMonitorRule;
 class CWorkspace;
 class CInputPopup;
 class IHLBuffer;
 class CEventLoopTimer;
+
+const std::vector<const char*> ASSET_PATHS = {
+#ifdef DATAROOTDIR
+    DATAROOTDIR,
+#endif
+    "/usr/share",
+    "/usr/local/share",
+};
 class CToplevelExportProtocolManager;
 class CInputManager;
 struct SSessionLockSurface;
@@ -48,6 +60,29 @@ struct SRenderWorkspaceUntilData {
     PHLWINDOW w;
 };
 
+struct STFRange {
+    float min = 0;
+    float max = 80;
+};
+
+struct SCMSettings {
+    NColorManagement::eTransferFunction  sourceTF = NColorManagement::CM_TRANSFER_FUNCTION_GAMMA22;
+    NColorManagement::eTransferFunction  targetTF = NColorManagement::CM_TRANSFER_FUNCTION_GAMMA22;
+    STFRange                             srcTFRange;
+    STFRange                             dstTFRange;
+    float                                srcRefLuminance = 80;
+    float                                dstRefLuminance = 80;
+    std::array<std::array<double, 3>, 3> convertMatrix;
+
+    bool                                 needsTonemap    = false;
+    float                                maxLuminance    = 80;
+    float                                dstMaxLuminance = 80;
+    std::array<std::array<double, 3>, 3> dstPrimaries2XYZ;
+    bool                                 needsSDRmod             = false;
+    float                                sdrSaturation           = 1.0;
+    float                                sdrBrightnessMultiplier = 1.0;
+};
+
 class CHyprRenderer {
   public:
     CHyprRenderer();
@@ -89,6 +124,9 @@ class CHyprRenderer {
     void                            renderSnapshot(PHLLS);
     void                            renderSnapshot(WP<Desktop::View::CPopup>);
 
+    //
+    NColorManagement::PImageDescription workBufferImageDescription();
+
     // if RENDER_MODE_NORMAL, provided damage will be written to.
     // otherwise, it will be the one used.
     bool beginRender(PHLMONITOR pMonitor, CRegion& damage, eRenderMode mode = RENDER_MODE_NORMAL, SP<IHLBuffer> buffer = {}, CFramebuffer* fb = nullptr, bool simple = false);
@@ -121,6 +159,10 @@ class CHyprRenderer {
 
     CRenderPass m_renderPass = {};
 
+    SCMSettings getCMSettings(const NColorManagement::PImageDescription imageDescription, const NColorManagement::PImageDescription targetImageDescription,
+                              SP<CWLSurfaceResource> surface = nullptr, bool modifySDR = false, float sdrMinLuminance = -1.0f, int sdrMaxLuminance = -1);
+    bool        reloadShaders(const std::string& path = "");
+
   private:
     void arrangeLayerArray(PHLMONITOR, const std::vector<PHLLSREF>&, bool, CBox*);
     void renderWorkspace(PHLMONITOR pMonitor, PHLWORKSPACE pWorkspace, const Time::steady_tp& now, const CBox& geometry);

src/render/Shader.cpp

@@ -139,11 +139,13 @@ void CShader::getUniformLocations() {
     m_uniformLocations[SHADER_SDR_SATURATION]       = getUniform("sdrSaturation");
     m_uniformLocations[SHADER_SDR_BRIGHTNESS]       = getUniform("sdrBrightnessMultiplier");
     m_uniformLocations[SHADER_CONVERT_MATRIX]       = getUniform("convertMatrix");
-    m_uniformLocations[SHADER_USE_ICC]              = getUniform("useIcc");
     m_uniformLocations[SHADER_LUT_3D]               = getUniform("iccLut3D");
     m_uniformLocations[SHADER_LUT_SIZE]             = getUniform("iccLutSize");
     //
     m_uniformLocations[SHADER_TEX]                 = getUniform("tex");
+    m_uniformLocations[SHADER_BLURRED_BG]          = getUniform("blurredBG");
+    m_uniformLocations[SHADER_UV_SIZE]             = getUniform("uvSize");
+    m_uniformLocations[SHADER_UV_OFFSET]           = getUniform("uvOffset");
     m_uniformLocations[SHADER_ALPHA]               = getUniform("alpha");
     m_uniformLocations[SHADER_POS_ATTRIB]          = getAttrib("pos");
     m_uniformLocations[SHADER_TEX_ATTRIB]          = getAttrib("texcoord");

src/render/Shader.hpp

@@ -74,9 +74,11 @@ enum eShaderUniform : uint8_t {
     SHADER_POINTER_INACTIVE_TIMEOUT,
     SHADER_POINTER_LAST_ACTIVE,
     SHADER_POINTER_SIZE,
-    SHADER_USE_ICC,
     SHADER_LUT_3D,
     SHADER_LUT_SIZE,
+    SHADER_BLURRED_BG,
+    SHADER_UV_SIZE,
+    SHADER_UV_OFFSET,
 
     SHADER_LAST,
 };

src/render/ShaderLoader.cpp

@@ -0,0 +1,176 @@
+#include "ShaderLoader.hpp"
+#include <format>
+#include <hyprutils/memory/Casts.hpp>
+#include <hyprutils/memory/UniquePtr.hpp>
+#include <hyprutils/string/String.hpp>
+#include <hyprutils/path/Path.hpp>
+#include "../debug/log/Logger.hpp"
+#include "shaders/Shaders.hpp"
+#include "../helpers/fs/FsUtils.hpp"
+#include "Renderer.hpp"
+#include <glslang/Public/resource_limits_c.h>
+#include <string>
+#include <filesystem>
+
+using namespace Render;
+
+CShaderLoader::CShaderLoader(const std::vector<std::string> includes, const std::array<std::string, SH_FRAG_LAST>& frags, const std::string shaderPath) : m_shaderPath(shaderPath) {
+    m_callbacks = glsl_include_callbacks_t{
+        .include_local =
+            [](void* ctx, const char* header_name, const char* includer_name, size_t include_depth) {
+                auto shaderLoader = sc<CShaderLoader*>(ctx);
+                auto res          = new glsl_include_result_t;
+                if (shaderLoader->m_overrideDefines.length() && std::string{header_name} == "defines.h") {
+                    res->header_name   = header_name;
+                    res->header_data   = shaderLoader->m_overrideDefines.c_str();
+                    res->header_length = shaderLoader->m_overrideDefines.length();
+                } else if (shaderLoader->includes().contains(header_name)) {
+                    res->header_name   = header_name;
+                    res->header_data   = shaderLoader->includes().at(header_name).c_str();
+                    res->header_length = shaderLoader->includes().at(header_name).length();
+                } else {
+                    res->header_name   = nullptr;
+                    res->header_data   = nullptr;
+                    res->header_length = 0;
+                }
+
+                shaderLoader->m_includeResults.push_back(res);
+                return res;
+            },
+        .free_include_result =
+            [](void* ctx, glsl_include_result_t* result) {
+                auto shaderLoader = sc<CShaderLoader*>(ctx);
+                std::erase(shaderLoader->m_includeResults, result);
+                delete result;
+                return 0;
+            },
+    };
+
+    for (const auto& inc : includes) {
+        include(inc);
+    }
+
+    std::ranges::transform(frags, m_fragFiles.begin(), [&](const auto& filename) { return loadShader(filename); });
+}
+
+CShaderLoader::~CShaderLoader() {
+    // glslFreeIncludeResult should leave it empty by this point
+    for (const auto& res : m_includeResults) {
+        delete res;
+    }
+}
+
+void CShaderLoader::include(const std::string& filename) {
+    m_includes.insert({filename, loadShader(filename)});
+}
+
+std::string CShaderLoader::getDefines(ShaderFeatureFlags features) {
+    std::string                        res     = "";
+    std::map<std::string, std::string> defines = {
+        {"USE_RGBA", features & SH_FEAT_RGBA ? "1" : "0"},         {"USE_DISCARD", features & SH_FEAT_DISCARD ? "1" : "0"}, {"USE_TINT", features & SH_FEAT_TINT ? "1" : "0"},
+        {"USE_ROUNDING", features & SH_FEAT_ROUNDING ? "1" : "0"}, {"USE_CM", features & SH_FEAT_CM ? "1" : "0"},           {"USE_TONEMAP", features & SH_FEAT_TONEMAP ? "1" : "0"},
+        {"USE_SDR_MOD", features & SH_FEAT_SDR_MOD ? "1" : "0"},   {"USE_BLUR", features & SH_FEAT_BLUR ? "1" : "0"},       {"USE_ICC", features & SH_FEAT_ICC ? "1" : "0"},
+    };
+    for (const auto& [name, value] : defines) {
+        res += std::format("#define {} {}\n", name, value);
+    }
+    return res;
+}
+
+std::string CShaderLoader::processSource(const std::string& source, glslang_stage_t stage) {
+    const glslang_input_t input = {
+        .language                          = GLSLANG_SOURCE_GLSL,
+        .stage                             = stage,
+        .client                            = GLSLANG_CLIENT_NONE,
+        .target_language                   = GLSLANG_TARGET_NONE,
+        .code                              = source.c_str(),
+        .default_version                   = 100,
+        .default_profile                   = GLSLANG_NO_PROFILE,
+        .force_default_version_and_profile = false,
+        .forward_compatible                = false,
+        .messages                          = GLSLANG_MSG_DEFAULT_BIT,
+        .resource                          = glslang_default_resource(),
+        .callbacks                         = m_callbacks,
+        .callbacks_ctx                     = this,
+    };
+
+    glslang_shader_t* shader = glslang_shader_create(&input);
+
+    if (!glslang_shader_preprocess(shader, &input)) {
+        Log::logger->log(Log::ERR, "GLSL preprocessing failed");
+        Log::logger->log(Log::ERR, "{}", glslang_shader_get_info_log(shader));
+        Log::logger->log(Log::ERR, "{}", glslang_shader_get_info_debug_log(shader));
+        Log::logger->log(Log::ERR, "{}", input.code);
+        glslang_shader_delete(shader);
+        return source;
+    }
+
+    std::stringstream stream(glslang_shader_get_preprocessed_code(shader));
+    std::string       code = "";
+    std::string       line;
+
+    while (std::getline(stream, line)) {
+        if (!line.starts_with("#line "))
+            code += line + "\n";
+    }
+
+    return code;
+}
+
+std::string CShaderLoader::process(const std::string& filename) {
+    auto source = loadShader(filename);
+    return processSource(source, filename.ends_with(".vert") ? GLSLANG_STAGE_VERTEX : GLSLANG_STAGE_FRAGMENT);
+}
+
+std::string CShaderLoader::process(const std::string& filename, const std::map<std::string, std::string>& defines) {
+    m_overrideDefines = "";
+    for (const auto& [name, value] : defines) {
+        m_overrideDefines += std::format("#define {} {}\n", name, value);
+    }
+    const auto& res   = process(filename);
+    m_overrideDefines = "";
+    return res;
+}
+
+std::string CShaderLoader::getVariantSource(ePreparedFragmentShader frag, ShaderFeatureFlags features) {
+    static const auto PCM = CConfigValue<Hyprlang::INT>("render:cm_enabled");
+    if (!*PCM)
+        features &= ~(SH_FEAT_CM | SH_FEAT_TONEMAP | SH_FEAT_SDR_MOD);
+
+    if (!m_fragVariants[frag].contains(features)) {
+        ASSERT(m_fragFiles[frag].length());
+        m_overrideDefines              = getDefines(features);
+        m_fragVariants[frag][features] = processSource(m_fragFiles[frag]);
+        m_overrideDefines              = "";
+    }
+
+    return m_fragVariants[frag][features];
+}
+
+const std::map<std::string, std::string>& CShaderLoader::includes() {
+    return m_includes;
+}
+
+// TODO notify user if bundled shader is newer than ~/.config override
+std::string CShaderLoader::loadShader(const std::string& filename) {
+    if (m_shaderPath.length()) {
+        std::filesystem::path path = m_shaderPath;
+        const auto            src  = NFsUtils::readFileAsString(path / filename);
+        if (src.has_value())
+            return src.value();
+    }
+    const auto home = Hyprutils::Path::getHome();
+    if (home.has_value()) {
+        const auto src = NFsUtils::readFileAsString(home.value() + "/hypr/shaders/" + filename);
+        if (src.has_value())
+            return src.value();
+    }
+    for (auto& e : ASSET_PATHS) {
+        const auto src = NFsUtils::readFileAsString(std::string{e} + "/hypr/shaders/" + filename);
+        if (src.has_value())
+            return src.value();
+    }
+    if (SHADERS.contains(filename))
+        return SHADERS.at(filename);
+    throw std::runtime_error(std::format("Couldn't load shader {}", filename));
+}

src/render/ShaderLoader.hpp

@@ -0,0 +1,77 @@
+#pragma once
+
+#include <array>
+#include <glslang/Include/glslang_c_interface.h>
+#include <string>
+#include <vector>
+#include <map>
+#include "../helpers/memory/Memory.hpp"
+
+namespace Render {
+    enum ePreparedFragmentShaderFeature : uint16_t {
+        SH_FEAT_UNKNOWN = 0, // all features just in case
+
+        SH_FEAT_RGBA     = (1 << 0), // RGBA/RGBX texture sampling
+        SH_FEAT_DISCARD  = (1 << 1), // RGBA/RGBX texture sampling
+        SH_FEAT_TINT     = (1 << 2), // uniforms: tint; condition: applyTint
+        SH_FEAT_ROUNDING = (1 << 3), // uniforms: radius, roundingPower, topLeft, fullSize; condition: radius > 0
+        SH_FEAT_CM       = (1 << 4), // uniforms: srcTFRange, dstTFRange, srcRefLuminance, convertMatrix; condition: !skipCM
+        SH_FEAT_TONEMAP  = (1 << 5), // uniforms: maxLuminance, dstMaxLuminance, dstRefLuminance; condition: maxLuminance < dstMaxLuminance * 1.01
+        SH_FEAT_SDR_MOD  = (1 << 6), // uniforms: sdrSaturation, sdrBrightnessMultiplier; condition: SDR <-> HDR && (sdrSaturation != 1 || sdrBrightnessMultiplier != 1)
+        SH_FEAT_BLUR     = (1 << 7), // condition: render:use_shader_blur_blend
+        SH_FEAT_ICC      = (1 << 8), //
+
+        // uniforms: targetPrimariesXYZ; condition: SH_FEAT_TONEMAP || SH_FEAT_SDR_MOD
+    };
+
+    using ShaderFeatureFlags = uint16_t;
+
+    enum ePreparedFragmentShader : uint8_t {
+        SH_FRAG_QUAD = 0,
+        SH_FRAG_PASSTHRURGBA,
+        SH_FRAG_MATTE,
+        SH_FRAG_EXT,
+        SH_FRAG_BLUR1,
+        SH_FRAG_BLUR2,
+        SH_FRAG_BLURPREPARE,
+        SH_FRAG_BLURFINISH,
+        SH_FRAG_SHADOW,
+        SH_FRAG_SURFACE,
+        SH_FRAG_BORDER1,
+        SH_FRAG_GLITCH,
+
+        SH_FRAG_LAST,
+    };
+
+    class CShaderLoader {
+      public:
+        CShaderLoader(const std::vector<std::string> includes, const std::array<std::string, SH_FRAG_LAST>& frags, const std::string shaderPath = "");
+        ~CShaderLoader();
+
+        void                                      include(const std::string& filename);
+        std::string                               process(const std::string& filename);
+        std::string                               process(const std::string& filename, const std::map<std::string, std::string>& defines);
+
+        std::string                               getVariantSource(ePreparedFragmentShader frag, ShaderFeatureFlags features);
+
+        const std::map<std::string, std::string>& includes();
+
+        std::vector<glsl_include_result_t*>       m_includeResults;
+
+      private:
+        std::string loadShader(const std::string& filename);
+        std::string getDefines(ShaderFeatureFlags features);
+        std::string processSource(const std::string& source, glslang_stage_t stage = GLSLANG_STAGE_FRAGMENT);
+
+        //
+        std::string                                                         m_shaderPath;
+        std::array<std::string, SH_FRAG_LAST>                               m_fragFiles;
+        std::array<std::map<ShaderFeatureFlags, std::string>, SH_FRAG_LAST> m_fragVariants;
+        std::map<std::string, std::string>                                  m_includes;
+
+        std::string                                                         m_overrideDefines;
+        glsl_include_callbacks_t                                            m_callbacks;
+    };
+
+    inline UP<CShaderLoader> g_pShaderLoader;
+}

src/render/shaders/glsl/CM.glsl

@@ -1,306 +1,27 @@
+#ifndef ALLOW_INCLUDES
+#define ALLOW_INCLUDES
+#extension GL_ARB_shading_language_include : enable
+#endif
+#include "cm_helpers.glsl"
+
 uniform vec2  srcTFRange;
 uniform vec2  dstTFRange;
 
 uniform float srcRefLuminance;
 uniform mat3  convertMatrix;
 
-#include "sdr_mod.glsl"
+#if USE_ICC
-
-uniform int useIcc;
 uniform highp sampler3D iccLut3D;
 uniform float           iccLutSize;
+#endif
 
-//enum eTransferFunction
+#if USE_SDR_MOD
-#define CM_TRANSFER_FUNCTION_BT1886     1
+uniform float sdrSaturation;
-#define CM_TRANSFER_FUNCTION_GAMMA22    2
+uniform float sdrBrightnessMultiplier;
-#define CM_TRANSFER_FUNCTION_GAMMA28    3
+#endif
-#define CM_TRANSFER_FUNCTION_ST240      4
-#define CM_TRANSFER_FUNCTION_EXT_LINEAR 5
-#define CM_TRANSFER_FUNCTION_LOG_100    6
-#define CM_TRANSFER_FUNCTION_LOG_316    7
-#define CM_TRANSFER_FUNCTION_XVYCC      8
-#define CM_TRANSFER_FUNCTION_SRGB       9
-#define CM_TRANSFER_FUNCTION_EXT_SRGB   10
-#define CM_TRANSFER_FUNCTION_ST2084_PQ  11
-#define CM_TRANSFER_FUNCTION_ST428      12
-#define CM_TRANSFER_FUNCTION_HLG        13
 
-// sRGB constants
+#if USE_TONEMAP
-#define SRGB_POW 2.4
+uniform float maxLuminance;
-#define SRGB_CUT 0.0031308
+uniform float dstMaxLuminance;
-#define SRGB_SCALE 12.92
+uniform float dstRefLuminance;
-#define SRGB_ALPHA 1.055
+#endif
-
-#define BT1886_POW (1.0 / 0.45)
-#define BT1886_CUT 0.018053968510807
-#define BT1886_SCALE 4.5
-#define BT1886_ALPHA (1.0 + 5.5 * BT1886_CUT)
-
-// See http://car.france3.mars.free.fr/HD/INA-%2026%20jan%2006/SMPTE%20normes%20et%20confs/s240m.pdf
-#define ST240_POW (1.0 / 0.45)
-#define ST240_CUT 0.0228
-#define ST240_SCALE 4.0
-#define ST240_ALPHA 1.1115
-
-#define ST428_POW 2.6
-#define ST428_SCALE (52.37 / 48.0)
-
-// PQ constants
-#define PQ_M1 0.1593017578125
-#define PQ_M2 78.84375
-#define PQ_INV_M1 (1.0 / PQ_M1)
-#define PQ_INV_M2 (1.0 / PQ_M2)
-#define PQ_C1 0.8359375
-#define PQ_C2 18.8515625
-#define PQ_C3 18.6875
-
-// HLG constants
-#define HLG_D_CUT (1.0 / 12.0)
-#define HLG_E_CUT 0.5
-#define HLG_A 0.17883277
-#define HLG_B 0.28466892
-#define HLG_C 0.55991073
-
-#define SDR_MIN_LUMINANCE 0.2
-#define SDR_MAX_LUMINANCE 80.0
-#define HDR_MIN_LUMINANCE 0.005
-#define HDR_MAX_LUMINANCE 10000.0
-#define HLG_MAX_LUMINANCE 1000.0
-
-#define M_E 2.718281828459045
-
-
-vec3 applyIcc3DLut(vec3 linearRgb01) {
-    vec3 x = clamp(linearRgb01, 0.0, 1.0);
-
-    // Map [0..1] to texel centers to avoid edge issues
-    float N = iccLutSize;
-    vec3 coord = (x * (N - 1.0) + 0.5) / N;
-
-    return texture(iccLut3D, coord).rgb;
-}
-
-vec3 xy2xyz(vec2 xy) {
-    if (xy.y == 0.0)
-        return vec3(0.0, 0.0, 0.0);
-
-    return vec3(xy.x / xy.y, 1.0, (1.0 - xy.x - xy.y) / xy.y);
-}
-
-// The primary source for these transfer functions is https://www.itu.int/dms_pubrec/itu-r/rec/bt/R-REC-BT.1361-0-199802-W!!PDF-E.pdf
-vec3 tfInvPQ(vec3 color) {
-    vec3 E = pow(clamp(color.rgb, vec3(0.0), vec3(1.0)), vec3(PQ_INV_M2));
-    return pow(
-        (max(E - PQ_C1, vec3(0.0))) / (PQ_C2 - PQ_C3 * E),
-        vec3(PQ_INV_M1)
-    );
-}
-
-vec3 tfInvHLG(vec3 color) {
-    bvec3 isLow = lessThanEqual(color.rgb, vec3(HLG_E_CUT));
-    vec3 lo = color.rgb * color.rgb / 3.0;
-    vec3 hi = (exp((color.rgb - HLG_C) / HLG_A) + HLG_B) / 12.0;
-    return mix(hi, lo, isLow);
-}
-
-// Many transfer functions (including sRGB) follow the same pattern: a linear
-// segment for small values and a power function for larger values. The
-// following function implements this pattern from which sRGB, BT.1886, and
-// others can be derived by plugging in the right constants.
-vec3 tfInvLinPow(vec3 color, float gamma, float thres, float scale, float alpha) {
-    bvec3 isLow = lessThanEqual(color.rgb, vec3(thres * scale));
-    vec3 lo = color.rgb / scale;
-    vec3 hi = pow((color.rgb + alpha - 1.0) / alpha, vec3(gamma));
-    return mix(hi, lo, isLow);
-}
-
-vec3 tfInvSRGB(vec3 color) {
-    return tfInvLinPow(color, SRGB_POW, SRGB_CUT, SRGB_SCALE, SRGB_ALPHA);
-}
-
-vec3 tfInvExtSRGB(vec3 color) {
-    // EXT sRGB is the sRGB transfer function mirrored around 0.
-    return sign(color) * tfInvSRGB(abs(color));
-}
-
-vec3 tfInvBT1886(vec3 color) {
-    return tfInvLinPow(color, BT1886_POW, BT1886_CUT, BT1886_SCALE, BT1886_ALPHA);
-}
-
-vec3 tfInvXVYCC(vec3 color) {
-    // The inverse transfer function for XVYCC is the BT1886 transfer function mirrored around 0,
-    // same as what EXT sRGB is to sRGB.
-    return sign(color) * tfInvBT1886(abs(color));
-}
-
-vec3 tfInvST240(vec3 color) {
-    return tfInvLinPow(color, ST240_POW, ST240_CUT, ST240_SCALE, ST240_ALPHA);
-}
-
-// Forward transfer functions corresponding to the inverse functions above.
-vec3 tfPQ(vec3 color) {
-    vec3 E = pow(clamp(color.rgb, vec3(0.0), vec3(1.0)), vec3(PQ_M1));
-    return pow(
-        (vec3(PQ_C1) + PQ_C2 * E) / (vec3(1.0) + PQ_C3 * E),
-        vec3(PQ_M2)
-    );
-}
-
-vec3 tfHLG(vec3 color) {
-    bvec3 isLow = lessThanEqual(color.rgb, vec3(HLG_D_CUT));
-    vec3 lo = sqrt(max(color.rgb, vec3(0.0)) * 3.0);
-    vec3 hi = HLG_A * log(max(12.0 * color.rgb - HLG_B, vec3(0.0001))) + HLG_C;
-    return mix(hi, lo, isLow);
-}
-
-vec3 tfLinPow(vec3 color, float gamma, float thres, float scale, float alpha) {
-    bvec3 isLow = lessThanEqual(color.rgb, vec3(thres));
-    vec3 lo = color.rgb * scale;
-    vec3 hi = pow(color.rgb, vec3(1.0 / gamma)) * alpha - (alpha - 1.0);
-    return mix(hi, lo, isLow);
-}
-
-vec3 tfSRGB(vec3 color) {
-    return tfLinPow(color, SRGB_POW, SRGB_CUT, SRGB_SCALE, SRGB_ALPHA);
-}
-
-vec3 tfExtSRGB(vec3 color) {
-    // EXT sRGB is the sRGB transfer function mirrored around 0.
-    return sign(color) * tfSRGB(abs(color));
-}
-
-vec3 tfBT1886(vec3 color) {
-    return tfLinPow(color, BT1886_POW, BT1886_CUT, BT1886_SCALE, BT1886_ALPHA);
-}
-
-vec3 tfXVYCC(vec3 color) {
-    // The transfer function for XVYCC is the BT1886 transfer function mirrored around 0,
-    // same as what EXT sRGB is to sRGB.
-    return sign(color) * tfBT1886(abs(color));
-}
-
-vec3 tfST240(vec3 color) {
-    return tfLinPow(color, ST240_POW, ST240_CUT, ST240_SCALE, ST240_ALPHA);
-}
-
-vec3 toLinearRGB(vec3 color, int tf) {
-    switch (tf) {
-        case CM_TRANSFER_FUNCTION_EXT_LINEAR:
-            return color;
-        case CM_TRANSFER_FUNCTION_ST2084_PQ:
-            return tfInvPQ(color);
-        case CM_TRANSFER_FUNCTION_GAMMA22:
-            return pow(max(color, vec3(0.0)), vec3(2.2));
-        case CM_TRANSFER_FUNCTION_GAMMA28:
-            return pow(max(color, vec3(0.0)), vec3(2.8));
-        case CM_TRANSFER_FUNCTION_HLG:
-            return tfInvHLG(color);
-        case CM_TRANSFER_FUNCTION_EXT_SRGB:
-            return tfInvExtSRGB(color);
-        case CM_TRANSFER_FUNCTION_BT1886:
-            return tfInvBT1886(color);
-        case CM_TRANSFER_FUNCTION_ST240:
-            return tfInvST240(color);
-        case CM_TRANSFER_FUNCTION_LOG_100:
-            return mix(exp((color - 1.0) * 2.0 * log(10.0)), vec3(0.0), lessThanEqual(color, vec3(0.0)));
-        case CM_TRANSFER_FUNCTION_LOG_316:
-            return mix(exp((color - 1.0) * 2.5 * log(10.0)), vec3(0.0), lessThanEqual(color, vec3(0.0)));
-        case CM_TRANSFER_FUNCTION_XVYCC:
-            return tfInvXVYCC(color);
-        case CM_TRANSFER_FUNCTION_ST428:
-            return pow(max(color, vec3(0.0)), vec3(ST428_POW)) * ST428_SCALE;
-        case CM_TRANSFER_FUNCTION_SRGB:
-        default:
-            return tfInvSRGB(color);
-    }
-}
-
-vec4 toLinear(vec4 color, int tf) {
-    if (tf == CM_TRANSFER_FUNCTION_EXT_LINEAR)
-        return color;
-
-    color.rgb /= max(color.a, 0.001);
-    color.rgb = toLinearRGB(color.rgb, tf);
-    color.rgb *= color.a;
-    return color;
-}
-
-vec4 toNit(vec4 color, vec2 range) {
-    color.rgb = color.rgb * (range[1] - range[0]) + range[0];
-    return color;
-}
-
-vec3 fromLinearRGB(vec3 color, int tf) {
-    switch (tf) {
-        case CM_TRANSFER_FUNCTION_EXT_LINEAR:
-            return color;
-        case CM_TRANSFER_FUNCTION_ST2084_PQ:
-            return tfPQ(color);
-        case CM_TRANSFER_FUNCTION_GAMMA22:
-            return pow(max(color, vec3(0.0)), vec3(1.0 / 2.2));
-        case CM_TRANSFER_FUNCTION_GAMMA28:
-            return pow(max(color, vec3(0.0)), vec3(1.0 / 2.8));
-        case CM_TRANSFER_FUNCTION_HLG:
-            return tfHLG(color);
-        case CM_TRANSFER_FUNCTION_EXT_SRGB:
-            return tfExtSRGB(color);
-        case CM_TRANSFER_FUNCTION_BT1886:
-            return tfBT1886(color);
-        case CM_TRANSFER_FUNCTION_ST240:
-            return tfST240(color);
-        case CM_TRANSFER_FUNCTION_LOG_100:
-            return mix(1.0 + log(color) / log(10.0) / 2.0, vec3(0.0), lessThanEqual(color, vec3(0.01)));
-        case CM_TRANSFER_FUNCTION_LOG_316:
-            return mix(1.0 + log(color) / log(10.0) / 2.5, vec3(0.0), lessThanEqual(color, vec3(sqrt(10.0) / 1000.0)));
-        case CM_TRANSFER_FUNCTION_XVYCC:
-            return tfXVYCC(color);
-        case CM_TRANSFER_FUNCTION_ST428:
-            return pow(max(color, vec3(0.0)) / ST428_SCALE, vec3(1.0 / ST428_POW));
-        case CM_TRANSFER_FUNCTION_SRGB:
-        default:
-            return tfSRGB(color);
-    }
-}
-
-vec4 fromLinear(vec4 color, int tf) {
-    if (tf == CM_TRANSFER_FUNCTION_EXT_LINEAR)
-        return color;
-
-    color.rgb /= max(color.a, 0.001);
-    color.rgb = fromLinearRGB(color.rgb, tf);
-    color.rgb *= color.a;
-    return color;
-}
-
-vec4 fromLinearNit(vec4 color, int tf, vec2 range) {    
-    if (tf == CM_TRANSFER_FUNCTION_EXT_LINEAR)
-        color.rgb = color.rgb / SDR_MAX_LUMINANCE;
-    else {
-        color.rgb /= max(color.a, 0.001);
-        color.rgb = (color.rgb - range[0]) / (range[1] - range[0]);
-        color.rgb = fromLinearRGB(color.rgb, tf);
-        color.rgb *= color.a;
-    }
-    return color;
-}
-
-#include "tonemap.glsl"
-
-vec4 doColorManagement(vec4 pixColor, int srcTF, int dstTF, mat3 dstxyz) {
-    pixColor.rgb /= max(pixColor.a, 0.001);
-    pixColor.rgb = toLinearRGB(pixColor.rgb, srcTF);
-
-    if (useIcc == 1) {
-        pixColor.rgb = applyIcc3DLut(pixColor.rgb);
-        pixColor.rgb *= pixColor.a;
-    } else {
-        pixColor.rgb = convertMatrix * pixColor.rgb;
-        pixColor = toNit(pixColor, srcTFRange);
-        pixColor.rgb *= pixColor.a;
-        #include "do_tonemap.glsl"
-        pixColor = fromLinearNit(pixColor, dstTF, dstTFRange);
-        #include "do_sdr_mod.glsl"
-    }
-
-    return pixColor;
-}

src/render/shaders/glsl/CMblurprepare.frag

@@ -1,36 +0,0 @@
-#version 300 es
-#extension GL_ARB_shading_language_include : enable
-
-precision highp float;
-in vec2 v_texcoord; // is in 0-1
-uniform sampler2D tex;
-
-uniform float contrast;
-uniform float brightness;
-
-uniform int sourceTF; // eTransferFunction
-uniform int targetTF; // eTransferFunction
-
-#include "CM.glsl"
-#include "gain.glsl"
-
-layout(location = 0) out vec4 fragColor;
-void main() {
-    vec4 pixColor = texture(tex, v_texcoord);
-
-    if (sourceTF == CM_TRANSFER_FUNCTION_ST2084_PQ) {
-        pixColor.rgb /= sdrBrightnessMultiplier;
-    }
-    pixColor.rgb = convertMatrix * toLinearRGB(pixColor.rgb, sourceTF);
-    pixColor = toNit(pixColor, vec2(srcTFRange[0], srcRefLuminance));
-    pixColor = fromLinearNit(pixColor, targetTF, dstTFRange);
-
-    // contrast
-    if (contrast != 1.0)
-        pixColor.rgb = gain(pixColor.rgb, contrast);
-
-    // brightness
-    pixColor.rgb *= max(1.0, brightness);
-
-    fragColor = pixColor;
-}

src/render/shaders/glsl/CMborder.frag

@@ -1,98 +0,0 @@
-#version 300 es
-#extension GL_ARB_shading_language_include : enable
-
-precision highp float;
-in vec2 v_texcoord;
-
-uniform int sourceTF; // eTransferFunction
-uniform int targetTF; // eTransferFunction
-uniform mat3 targetPrimariesXYZ;
-
-uniform vec2 fullSizeUntransformed;
-uniform float radiusOuter;
-uniform float thick;
-
-// Gradients are in OkLabA!!!! {l, a, b, alpha}
-uniform vec4 gradient[10];
-uniform vec4 gradient2[10];
-uniform int gradientLength;
-uniform int gradient2Length;
-uniform float angle;
-uniform float angle2;
-uniform float gradientLerp;
-uniform float alpha;
-
-#include "rounding.glsl"
-#include "CM.glsl"
-#include "border.glsl"
-
-layout(location = 0) out vec4 fragColor;
-void main() {
-    highp vec2 pixCoord = vec2(gl_FragCoord);
-    highp vec2 pixCoordOuter = pixCoord;
-    highp vec2 originalPixCoord = v_texcoord;
-    originalPixCoord *= fullSizeUntransformed;
-    float additionalAlpha = 1.0;
-
-    vec4 pixColor = vec4(1.0, 1.0, 1.0, 1.0);
-
-    bool done = false;
-
-    pixCoord -= topLeft + fullSize * 0.5;
-    pixCoord *= vec2(lessThan(pixCoord, vec2(0.0))) * -2.0 + 1.0;
-    pixCoordOuter = pixCoord;
-    pixCoord -= fullSize * 0.5 - radius;
-    pixCoordOuter -= fullSize * 0.5 - radiusOuter;
-
-    // center the pixes don't make it top-left
-    pixCoord += vec2(1.0, 1.0) / fullSize;
-    pixCoordOuter += vec2(1.0, 1.0) / fullSize;
-
-    if (min(pixCoord.x, pixCoord.y) > 0.0 && radius > 0.0) {
-            float dist = pow(pow(pixCoord.x,roundingPower)+pow(pixCoord.y,roundingPower),1.0/roundingPower);
-            float distOuter = pow(pow(pixCoordOuter.x,roundingPower)+pow(pixCoordOuter.y,roundingPower),1.0/roundingPower);
-        float h = (thick / 2.0);
-
-            if (dist < radius - h) {
-            // lower
-            float normalized = smoothstep(0.0, 1.0, (dist - radius + thick + SMOOTHING_CONSTANT) / (SMOOTHING_CONSTANT * 2.0));
-            additionalAlpha *= normalized;
-            done = true;
-        } else if (min(pixCoordOuter.x, pixCoordOuter.y) > 0.0) {
-            // higher
-            float normalized = 1.0 - smoothstep(0.0, 1.0, (distOuter - radiusOuter + SMOOTHING_CONSTANT) / (SMOOTHING_CONSTANT * 2.0));
-            additionalAlpha *= normalized;
-            done = true;
-        } else if (distOuter < radiusOuter - h) {
-            additionalAlpha = 1.0;
-            done = true;
-        }
-    }
-
-    // now check for other shit
-    if (!done) {
-        // distance to all straight bb borders
-        float distanceT = originalPixCoord[1];
-        float distanceB = fullSizeUntransformed[1] - originalPixCoord[1];
-        float distanceL = originalPixCoord[0];
-        float distanceR = fullSizeUntransformed[0] - originalPixCoord[0];
-
-        // get the smallest
-        float smallest = min(min(distanceT, distanceB), min(distanceL, distanceR));
-
-        if (smallest > thick)
-            discard;
-    }
-
-    if (additionalAlpha == 0.0)
-        discard;
-
-    pixColor = getColorForCoord(v_texcoord);
-    pixColor.rgb *= pixColor[3];
-
-    pixColor = doColorManagement(pixColor, sourceTF, targetTF, targetPrimariesXYZ);
-
-    pixColor *= alpha * additionalAlpha;
-
-    fragColor = pixColor;
-}

src/render/shaders/glsl/blur1.frag

@@ -1,4 +1,7 @@
 #version 300 es
+#define ALLOW_INCLUDES
+#extension GL_ARB_shading_language_include : enable
+
 precision         highp float;
 uniform sampler2D tex;
 
@@ -9,135 +12,10 @@ uniform float        vibrancy;
 uniform float     vibrancy_darkness;
 
 in vec2           v_texcoord;
-
-// see http://alienryderflex.com/hsp.html
-const float Pr = 0.299;
-const float Pg = 0.587;
-const float Pb = 0.114;
-
-// Y is "v" ( brightness ). X is "s" ( saturation )
-// see https://www.desmos.com/3d/a88652b9a4
-// Determines if high brightness or high saturation is more important
-const float a = 0.93;
-const float b = 0.11;
-const float c = 0.66; //  Determines the smoothness of the transition of unboosted to boosted colors
-//
-
-// http://www.flong.com/archive/texts/code/shapers_circ/
-float doubleCircleSigmoid(float x, float a) {
-    a = clamp(a, 0.0, 1.0);
-
-    float y = .0;
-    if (x <= a) {
-        y = a - sqrt(a * a - x * x);
-    } else {
-        y = a + sqrt(pow(1. - a, 2.) - pow(x - 1., 2.));
-    }
-    return y;
-}
-
-vec3 rgb2hsl(vec3 col) {
-    float red   = col.r;
-    float green = col.g;
-    float blue  = col.b;
-
-    float minc  = min(col.r, min(col.g, col.b));
-    float maxc  = max(col.r, max(col.g, col.b));
-    float delta = maxc - minc;
-
-    float lum = (minc + maxc) * 0.5;
-    float sat = 0.0;
-    float hue = 0.0;
-
-    if (lum > 0.0 && lum < 1.0) {
-        float mul = (lum < 0.5) ? (lum) : (1.0 - lum);
-        sat       = delta / (mul * 2.0);
-    }
-
-    if (delta > 0.0) {
-        vec3  maxcVec = vec3(maxc);
-        vec3  masks = vec3(equal(maxcVec, col)) * vec3(notEqual(maxcVec, vec3(green, blue, red)));
-        vec3  adds = vec3(0.0, 2.0, 4.0) + vec3(green - blue, blue - red, red - green) / delta;
-
-        hue += dot(adds, masks);
-        hue /= 6.0;
-
-        if (hue < 0.0)
-            hue += 1.0;
-    }
-
-    return vec3(hue, sat, lum);
-}
-
-vec3 hsl2rgb(vec3 col) {
-    const float onethird = 1.0 / 3.0;
-    const float twothird = 2.0 / 3.0;
-    const float rcpsixth = 6.0;
-
-    float       hue = col.x;
-    float       sat = col.y;
-    float       lum = col.z;
-
-    vec3        xt = vec3(0.0);
-
-    if (hue < onethird) {
-        xt.r = rcpsixth * (onethird - hue);
-        xt.g = rcpsixth * hue;
-        xt.b = 0.0;
-    } else if (hue < twothird) {
-        xt.r = 0.0;
-        xt.g = rcpsixth * (twothird - hue);
-        xt.b = rcpsixth * (hue - onethird);
-    } else
-        xt = vec3(rcpsixth * (hue - twothird), 0.0, rcpsixth * (1.0 - hue));
-
-    xt = min(xt, 1.0);
-
-    float sat2   = 2.0 * sat;
-    float satinv = 1.0 - sat;
-    float luminv = 1.0 - lum;
-    float lum2m1 = (2.0 * lum) - 1.0;
-    vec3  ct     = (sat2 * xt) + satinv;
-
-    vec3  rgb;
-    if (lum >= 0.5)
-        rgb = (luminv * ct) + lum2m1;
-    else
-        rgb = lum * ct;
-
-    return rgb;
-}
-
 layout(location = 0) out vec4 fragColor;
+
+#include "blur1.glsl"
+
 void main() {
-    vec2 uv = v_texcoord * 2.0;
+    fragColor = blur1(v_texcoord, tex, radius, halfpixel, passes, vibrancy, vibrancy_darkness);
-
-    vec4 sum = texture(tex, uv) * 4.0;
-    sum += texture(tex, uv - halfpixel.xy * radius);
-    sum += texture(tex, uv + halfpixel.xy * radius);
-    sum += texture(tex, uv + vec2(halfpixel.x, -halfpixel.y) * radius);
-    sum += texture(tex, uv - vec2(halfpixel.x, -halfpixel.y) * radius);
-
-    vec4 color = sum / 8.0;
-
-    if (vibrancy == 0.0) {
-        fragColor = color;
-    } else {
-        // Invert it so that it correctly maps to the config setting
-        float vibrancy_darkness1 = 1.0 - vibrancy_darkness;
-
-        // Decrease the RGB components based on their perceived brightness, to prevent visually dark colors from overblowing the rest.
-        vec3 hsl = rgb2hsl(color.rgb);
-        // Calculate perceived brightness, as not boost visually dark colors like deep blue as much as equally saturated yellow
-        float perceivedBrightness = doubleCircleSigmoid(sqrt(color.r * color.r * Pr + color.g * color.g * Pg + color.b * color.b * Pb), 0.8 * vibrancy_darkness1);
-
-        float b1        = b * vibrancy_darkness1;
-        float boostBase = hsl[1] > 0.0 ? smoothstep(b1 - c * 0.5, b1 + c * 0.5, 1.0 - (pow(1.0 - hsl[1] * cos(a), 2.0) + pow(1.0 - perceivedBrightness * sin(a), 2.0))) : 0.0;
-
-        float saturation = clamp(hsl[1] + (boostBase * vibrancy) / float(passes), 0.0, 1.0);
-
-        vec3  newColor = hsl2rgb(vec3(hsl[0], saturation, hsl[2]));
-
-        fragColor = vec4(newColor, color[3]);
-    }
 }

src/render/shaders/glsl/blur1.glsl

@@ -0,0 +1,130 @@
+// see http://alienryderflex.com/hsp.html
+const float Pr = 0.299;
+const float Pg = 0.587;
+const float Pb = 0.114;
+
+// Y is "v" ( brightness ). X is "s" ( saturation )
+// see https://www.desmos.com/3d/a88652b9a4
+// Determines if high brightness or high saturation is more important
+const float a = 0.93;
+const float b = 0.11;
+const float c = 0.66; //  Determines the smoothness of the transition of unboosted to boosted colors
+//
+
+// http://www.flong.com/archive/texts/code/shapers_circ/
+float doubleCircleSigmoid(float x, float a) {
+    a = clamp(a, 0.0, 1.0);
+
+    float y = .0;
+    if (x <= a) {
+        y = a - sqrt(a * a - x * x);
+    } else {
+        y = a + sqrt(pow(1. - a, 2.) - pow(x - 1., 2.));
+    }
+    return y;
+}
+
+vec3 rgb2hsl(vec3 col) {
+    float red   = col.r;
+    float green = col.g;
+    float blue  = col.b;
+
+    float minc  = min(col.r, min(col.g, col.b));
+    float maxc  = max(col.r, max(col.g, col.b));
+    float delta = maxc - minc;
+
+    float lum = (minc + maxc) * 0.5;
+    float sat = 0.0;
+    float hue = 0.0;
+
+    if (lum > 0.0 && lum < 1.0) {
+        float mul = (lum < 0.5) ? (lum) : (1.0 - lum);
+        sat       = delta / (mul * 2.0);
+    }
+
+    if (delta > 0.0) {
+        vec3 maxcVec = vec3(maxc);
+        vec3 masks   = vec3(equal(maxcVec, col)) * vec3(notEqual(maxcVec, vec3(green, blue, red)));
+        vec3 adds    = vec3(0.0, 2.0, 4.0) + vec3(green - blue, blue - red, red - green) / delta;
+
+        hue += dot(adds, masks);
+        hue /= 6.0;
+
+        if (hue < 0.0)
+            hue += 1.0;
+    }
+
+    return vec3(hue, sat, lum);
+}
+
+vec3 hsl2rgb(vec3 col) {
+    const float onethird = 1.0 / 3.0;
+    const float twothird = 2.0 / 3.0;
+    const float rcpsixth = 6.0;
+
+    float       hue = col.x;
+    float       sat = col.y;
+    float       lum = col.z;
+
+    vec3        xt = vec3(0.0);
+
+    if (hue < onethird) {
+        xt.r = rcpsixth * (onethird - hue);
+        xt.g = rcpsixth * hue;
+        xt.b = 0.0;
+    } else if (hue < twothird) {
+        xt.r = 0.0;
+        xt.g = rcpsixth * (twothird - hue);
+        xt.b = rcpsixth * (hue - onethird);
+    } else
+        xt = vec3(rcpsixth * (hue - twothird), 0.0, rcpsixth * (1.0 - hue));
+
+    xt = min(xt, 1.0);
+
+    float sat2   = 2.0 * sat;
+    float satinv = 1.0 - sat;
+    float luminv = 1.0 - lum;
+    float lum2m1 = (2.0 * lum) - 1.0;
+    vec3  ct     = (sat2 * xt) + satinv;
+
+    vec3  rgb;
+    if (lum >= 0.5)
+        rgb = (luminv * ct) + lum2m1;
+    else
+        rgb = lum * ct;
+
+    return rgb;
+}
+
+vec4 blur1(vec2 v_texcoord, sampler2D tex, float radius, vec2 halfpixel, int passes, float vibrancy, float vibrancy_darkness) {
+    vec2 uv = v_texcoord * 2.0;
+
+    vec4 sum = texture(tex, uv) * 4.0;
+    sum += texture(tex, uv - halfpixel.xy * radius);
+    sum += texture(tex, uv + halfpixel.xy * radius);
+    sum += texture(tex, uv + vec2(halfpixel.x, -halfpixel.y) * radius);
+    sum += texture(tex, uv - vec2(halfpixel.x, -halfpixel.y) * radius);
+
+    vec4 color = sum / 8.0;
+
+    if (vibrancy == 0.0) {
+        return color;
+    } else {
+        // Invert it so that it correctly maps to the config setting
+        float vibrancy_darkness1 = 1.0 - vibrancy_darkness;
+
+        // Decrease the RGB components based on their perceived brightness, to prevent visually dark colors from overblowing the rest.
+        vec3 hsl = rgb2hsl(color.rgb);
+        // Calculate perceived brightness, as not boost visually dark colors like deep blue as much as equally saturated yellow
+        float perceivedBrightness = doubleCircleSigmoid(sqrt(color.r * color.r * Pr + color.g * color.g * Pg + color.b * color.b * Pb), 0.8 * vibrancy_darkness1);
+
+        float b1        = b * vibrancy_darkness1;
+        float boostBase = hsl[1] > 0.0 ? smoothstep(b1 - c * 0.5, b1 + c * 0.5, 1.0 - (pow(1.0 - hsl[1] * cos(a), 2.0) + pow(1.0 - perceivedBrightness * sin(a), 2.0))) : 0.0;
+
+        float saturation = clamp(hsl[1] + (boostBase * vibrancy) / float(passes), 0.0, 1.0);
+
+        vec3  newColor = hsl2rgb(vec3(hsl[0], saturation, hsl[2]));
+
+        return vec4(newColor, color[3]);
+    }
+}

src/render/shaders/glsl/blur2.frag

@@ -1,4 +1,7 @@
 #version 300 es
+#define ALLOW_INCLUDES
+#extension GL_ARB_shading_language_include : enable
+
 precision         highp float;
 
 uniform sampler2D tex;
@@ -8,18 +11,8 @@ uniform vec2 halfpixel;
 in vec2           v_texcoord;
 layout(location = 0) out vec4 fragColor;
 
+#include "blur2.glsl"
+
 void main() {
-    vec2 uv = v_texcoord / 2.0;
+    fragColor = blur2(v_texcoord, tex, radius, halfpixel);
-
-    vec4 sum = texture(tex, uv + vec2(-halfpixel.x * 2.0, 0.0) * radius);
-
-    sum += texture(tex, uv + vec2(-halfpixel.x,  halfpixel.y) * radius) * 2.0;
-    sum += texture(tex, uv + vec2(0.0,           halfpixel.y * 2.0) * radius);
-    sum += texture(tex, uv + vec2(halfpixel.x,   halfpixel.y) * radius) * 2.0;
-    sum += texture(tex, uv + vec2(halfpixel.x * 2.0, 0.0) * radius);
-    sum += texture(tex, uv + vec2(halfpixel.x,  -halfpixel.y) * radius) * 2.0;
-    sum += texture(tex, uv + vec2(0.0,          -halfpixel.y * 2.0) * radius);
-    sum += texture(tex, uv + vec2(-halfpixel.x, -halfpixel.y) * radius) * 2.0;
-
-    fragColor = sum / 12.0;
 }

src/render/shaders/glsl/blur2.glsl

@@ -0,0 +1,15 @@
+vec4 blur2(vec2 v_texcoord, sampler2D tex, float radius, vec2 halfpixel) {
+    vec2 uv = v_texcoord / 2.0;
+
+    vec4 sum = texture(tex, uv + vec2(-halfpixel.x * 2.0, 0.0) * radius);
+
+    sum += texture(tex, uv + vec2(-halfpixel.x,  halfpixel.y) * radius) * 2.0;
+    sum += texture(tex, uv + vec2(0.0,           halfpixel.y * 2.0) * radius);
+    sum += texture(tex, uv + vec2(halfpixel.x,   halfpixel.y) * radius) * 2.0;
+    sum += texture(tex, uv + vec2(halfpixel.x * 2.0, 0.0) * radius);
+    sum += texture(tex, uv + vec2(halfpixel.x,  -halfpixel.y) * radius) * 2.0;
+    sum += texture(tex, uv + vec2(0.0,          -halfpixel.y * 2.0) * radius);
+    sum += texture(tex, uv + vec2(-halfpixel.x, -halfpixel.y) * radius) * 2.0;
+
+    return sum / 12.0;
+}

src/render/shaders/glsl/blurFinish.glsl

@@ -0,0 +1,17 @@
+float hash(vec2 p) {
+    vec3 p3 = fract(vec3(p.xyx) * 1689.1984);
+    p3 += dot(p3, p3.yzx + 33.33);
+    return fract((p3.x + p3.y) * p3.z);
+}
+
+vec4 blurFinish(vec4 pixColor, vec2 v_texcoord, float noise, float brightness) {
+    // noise
+    float noiseHash   = hash(v_texcoord);
+    float noiseAmount = noiseHash - 0.5;
+    pixColor.rgb += noiseAmount * noise;
+
+    // brightness
+    pixColor.rgb *= min(1.0, brightness);
+
+    return pixColor;
+}

src/render/shaders/glsl/blurfinish.frag

@@ -1,4 +1,5 @@
 #version 300 es
+#define ALLOW_INCLUDES
 #extension GL_ARB_shading_language_include : enable
 
 precision         highp float;
@@ -8,23 +9,11 @@ uniform sampler2D tex;
 uniform float     noise;
 uniform float     brightness;
 
-float hash(vec2 p) {
+#include "blurFinish.glsl"
-    vec3 p3 = fract(vec3(p.xyx) * 1689.1984);
-    p3 += dot(p3, p3.yzx + 33.33);
-    return fract((p3.x + p3.y) * p3.z);
-}
 
 layout(location = 0) out vec4 fragColor;
 void main() {
     vec4 pixColor = texture(tex, v_texcoord);
 
-    // noise
+    fragColor = blurFinish(pixColor, v_texcoord, noise, brightness);
-    float noiseHash   = hash(v_texcoord);
-    float noiseAmount = noiseHash - 0.5;
-    pixColor.rgb += noiseAmount * noise;
-
-    // brightness
-    pixColor.rgb *= min(1.0, brightness);
-
-    fragColor = pixColor;
 }

src/render/shaders/glsl/blurprepare.frag

@@ -1,6 +1,9 @@
 #version 300 es
+#define ALLOW_INCLUDES
 #extension GL_ARB_shading_language_include : enable
 
+#include "defines.h"
+
 precision         highp float;
 in vec2           v_texcoord; // is in 0-1
 uniform sampler2D tex;
@@ -8,19 +11,28 @@ uniform sampler2D tex;
 uniform float     contrast;
 uniform float     brightness;
 
-#include "CM.glsl"
+uniform int       sourceTF; // eTransferFunction
-#include "gain.glsl"
+uniform int       targetTF; // eTransferFunction
+
+#if USE_CM
+uniform vec2  srcTFRange;
+uniform vec2  dstTFRange;
+
+uniform float srcRefLuminance;
+uniform mat3  convertMatrix;
+
+uniform float sdrBrightnessMultiplier;
+#include "cm_helpers.glsl"
+#endif
+
+#include "blurprepare.glsl"
 
 layout(location = 0) out vec4 fragColor;
 void main() {
-    vec4 pixColor = texture(tex, v_texcoord);
+    fragColor = fragColor = blurPrepare(texture(tex, v_texcoord), contrast, brightness
-
+#if USE_CM
-    // contrast
+                                        ,
-    if (contrast != 1.0)
+                                        sourceTF, targetTF, convertMatrix, srcTFRange, dstTFRange, srcRefLuminance, sdrBrightnessMultiplier
-        pixColor.rgb = gain(pixColor.rgb, contrast);
+#endif
-
+    );
-    // brightness
-    pixColor.rgb *= max(1.0, brightness);
-
-    fragColor = pixColor;
 }

src/render/shaders/glsl/blurprepare.glsl

@@ -0,0 +1,37 @@
+#ifndef ALLOW_INCLUDES
+#define ALLOW_INCLUDES
+#extension GL_ARB_shading_language_include : enable
+#endif
+
+#include "defines.h"
+
+#if USE_CM
+#include "cm_helpers.glsl"
+#endif
+
+#include "gain.glsl"
+
+vec4 blurPrepare(vec4 pixColor, float contrast, float brightness
+#if USE_CM
+                 ,
+                 int sourceTF, int targetTF, mat3 convertMatrix, vec2 srcTFRange, vec2 dstTFRange, float srcRefLuminance, float sdrBrightnessMultiplier
+#endif
+) {
+#if USE_CM
+    if (sourceTF == CM_TRANSFER_FUNCTION_ST2084_PQ) {
+        pixColor.rgb /= sdrBrightnessMultiplier;
+    }
+    pixColor.rgb = convertMatrix * toLinearRGB(pixColor.rgb, sourceTF);
+    pixColor     = toNit(pixColor, vec2(srcTFRange[0], srcRefLuminance));
+    pixColor     = fromLinearNit(pixColor, targetTF, dstTFRange);
+#endif
+
+    // contrast
+    if (contrast != 1.0)
+        pixColor.rgb = gain(pixColor.rgb, contrast);
+
+    // brightness
+    pixColor.rgb *= max(1.0, brightness);
+
+    return pixColor;
+}

src/render/shaders/glsl/border.frag

@@ -1,9 +1,14 @@
 #version 300 es
+#define ALLOW_INCLUDES
 #extension GL_ARB_shading_language_include : enable
 
 precision     highp float;
 in vec2       v_texcoord;
 
+uniform int   sourceTF; // eTransferFunction
+uniform int   targetTF; // eTransferFunction
+uniform mat3  targetPrimariesXYZ;
+
 uniform vec2  fullSizeUntransformed;
 uniform float radiusOuter;
 uniform float thick;
@@ -18,75 +23,38 @@ uniform float angle2;
 uniform float gradientLerp;
 uniform float alpha;
 
+uniform float radius;
+uniform float roundingPower;
+uniform vec2  topLeft;
+uniform vec2  fullSize;
 #include "rounding.glsl"
 #include "CM.glsl"
 #include "border.glsl"
 
 layout(location = 0) out vec4 fragColor;
 void main() {
-    highp vec2 pixCoord = vec2(gl_FragCoord);
+    fragColor = getBorder(v_texcoord, alpha, fullSizeUntransformed, radiusOuter, thick, radius, roundingPower, topLeft, fullSize, gradientLength, gradient, angle, gradient2Length,
-    highp vec2 pixCoordOuter = pixCoord;
+                          gradient2, angle2, gradientLerp
-    highp vec2 originalPixCoord = v_texcoord;
+#if USE_CM
-    originalPixCoord *= fullSizeUntransformed;
+                          ,
-    float additionalAlpha = 1.0;
+                          sourceTF, targetTF, convertMatrix, srcTFRange, dstTFRange
-
+#if USE_ICC
-    vec4 pixColor = vec4(1.0, 1.0, 1.0, 1.0);
+                          ,
-
+                          iccLut3D, iccLutSize
-    bool done = false;
+#else
-
+#if USE_TONEMAP || USE_SDR_MOD
-    pixCoord -= topLeft + fullSize * 0.5;
+                          ,
-    pixCoord *= vec2(lessThan(pixCoord, vec2(0.0))) * -2.0 + 1.0;
+                          targetPrimariesXYZ
-    pixCoordOuter = pixCoord;
+#endif
-    pixCoord -= fullSize * 0.5 - radius;
+#if USE_TONEMAP
-    pixCoordOuter -= fullSize * 0.5 - radiusOuter;
+                          ,
-
+                          maxLuminance, dstMaxLuminance, dstRefLuminance, srcRefLuminance
-    // center the pixes don't make it top-left
+#endif
-    pixCoord += vec2(1.0, 1.0) / fullSize;
+#if USE_SDR_MOD
-    pixCoordOuter += vec2(1.0, 1.0) / fullSize;
+                          ,
-
+                          sdrSaturation, sdrBrightnessMultiplier
-    if (min(pixCoord.x, pixCoord.y) > 0.0 && radius > 0.0) {
+#endif
-	    float dist = pow(pow(pixCoord.x,roundingPower)+pow(pixCoord.y,roundingPower),1.0/roundingPower);
+#endif
-	    float distOuter = pow(pow(pixCoordOuter.x,roundingPower)+pow(pixCoordOuter.y,roundingPower),1.0/roundingPower);
+#endif
-        float h = (thick / 2.0);
+    );
-
-	    if (dist < radius - h) {
-            // lower
-            float normalized = smoothstep(0.0, 1.0, (dist - radius + thick + SMOOTHING_CONSTANT) / (SMOOTHING_CONSTANT * 2.0));
-            additionalAlpha *= normalized;
-            done = true;
-        } else if (min(pixCoordOuter.x, pixCoordOuter.y) > 0.0) {
-            // higher
-            float normalized = 1.0 - smoothstep(0.0, 1.0, (distOuter - radiusOuter + SMOOTHING_CONSTANT) / (SMOOTHING_CONSTANT * 2.0));
-            additionalAlpha *= normalized;
-            done = true;
-        } else if (distOuter < radiusOuter - h) {
-            additionalAlpha = 1.0;
-            done = true;
-        }
-    }
-
-    // now check for other shit
-    if (!done) {
-        // distance to all straight bb borders
-        float distanceT = originalPixCoord[1];
-        float distanceB = fullSizeUntransformed[1] - originalPixCoord[1];
-        float distanceL = originalPixCoord[0];
-        float distanceR = fullSizeUntransformed[0] - originalPixCoord[0];
-
-        // get the smallest
-        float smallest = min(min(distanceT, distanceB), min(distanceL, distanceR));
-
-        if (smallest > thick)
-            discard;
-    }
-
-    if (additionalAlpha == 0.0)
-        discard;
-
-    pixColor = getColorForCoord(v_texcoord);
-    pixColor.rgb *= pixColor[3];
-
-    pixColor *= alpha * additionalAlpha;
-
-    fragColor = pixColor;
 }

src/render/shaders/glsl/border.glsl

@@ -1,18 +1,24 @@
+#ifndef ALLOW_INCLUDES
+#define ALLOW_INCLUDES
+#extension GL_ARB_shading_language_include : enable
+#endif
+#include "cm_helpers.glsl"
+#if USE_ROUNDING
+#include "rounding.glsl"
+#endif
+
 vec4 okLabAToSrgb(vec4 lab) {
     float l = pow(lab[0] + lab[1] * 0.3963377774 + lab[2] * 0.2158037573, 3.0);
     float m = pow(lab[0] + lab[1] * (-0.1055613458) + lab[2] * (-0.0638541728), 3.0);
     float s = pow(lab[0] + lab[1] * (-0.0894841775) + lab[2] * (-1.2914855480), 3.0);
 
-    return vec4(fromLinearRGB(
+    return vec4(fromLinearRGB(vec3(l * 4.0767416621 + m * -3.3077115913 + s * 0.2309699292, l * (-1.2684380046) + m * 2.6097574011 + s * (-0.3413193965),
-                vec3(
+                                   l * (-0.0041960863) + m * (-0.7034186147) + s * 1.7076147010),
-                        l * 4.0767416621 + m * -3.3077115913 + s * 0.2309699292,
+                              CM_TRANSFER_FUNCTION_GAMMA22),
-                        l * (-1.2684380046) + m * 2.6097574011 + s * (-0.3413193965),
+                lab[3]);
-                        l * (-0.0041960863) + m * (-0.7034186147) + s * 1.7076147010
-                ), CM_TRANSFER_FUNCTION_GAMMA22
-        ), lab[3]);
 }
 
-vec4 getOkColorForCoordArray1(vec2 normalizedCoord) {
+vec4 getOkColorForCoordArray1(vec2 normalizedCoord, int gradientLength, vec4 gradient[10], float angle) {
     if (gradientLength < 2)
         return gradient[0];
 
@@ -41,7 +47,7 @@ vec4 getOkColorForCoordArray1(vec2 normalizedCoord) {
     return gradient[top] * (progress - float(bottom)) + gradient[bottom] * (float(top) - progress);
 }
 
-vec4 getOkColorForCoordArray2(vec2 normalizedCoord) {
+vec4 getOkColorForCoordArray2(vec2 normalizedCoord, float angle, int gradient2Length, vec4 gradient2[10], float angle2) {
     if (gradient2Length < 2)
         return gradient2[0];
 
@@ -70,13 +76,128 @@ vec4 getOkColorForCoordArray2(vec2 normalizedCoord) {
     return gradient2[top] * (progress - float(bottom)) + gradient2[bottom] * (float(top) - progress);
 }
 
-vec4 getColorForCoord(vec2 normalizedCoord) {
+vec4 getColorForCoord(vec2 normalizedCoord, int gradientLength, vec4 gradient[10], float angle, int gradient2Length, vec4 gradient2[10], float angle2, float gradientLerp) {
-    vec4 result1 = getOkColorForCoordArray1(normalizedCoord);
+    vec4 result1 = getOkColorForCoordArray1(normalizedCoord, gradientLength, gradient, angle);
 
     if (gradient2Length <= 0)
         return okLabAToSrgb(result1);
 
-    vec4 result2 = getOkColorForCoordArray2(normalizedCoord);
+    vec4 result2 = getOkColorForCoordArray2(normalizedCoord, angle, gradient2Length, gradient2, angle2);
 
     return okLabAToSrgb(mix(result1, result2, gradientLerp));
 }
+
+vec4 getBorder(vec2 v_texcoord, float alpha, vec2 fullSizeUntransformed, float radiusOuter, float thick, float radius, float roundingPower, vec2 topLeft, vec2 fullSize,
+               int gradientLength, vec4 gradient[10], float angle, int gradient2Length, vec4 gradient2[10], float angle2, float gradientLerp
+#if USE_CM
+               ,
+               int sourceTF, int targetTF, mat3 convertMatrix, vec2 srcTFRange, vec2 dstTFRange
+#if USE_ICC
+               ,
+               highp sampler3D iccLut3D, float iccLutSize
+#else
+#if USE_TONEMAP || USE_SDR_MOD
+               ,
+               mat3 targetPrimariesXYZ
+#endif
+#if USE_TONEMAP
+               ,
+               float maxLuminance, float dstMaxLuminance, float dstRefLuminance, float srcRefLuminance
+#endif
+#if USE_SDR_MOD
+               ,
+               float sdrSaturation, float sdrBrightnessMultiplier
+#endif
+#endif
+#endif
+) {
+    vec2 pixCoord         = vec2(gl_FragCoord);
+    vec2 pixCoordOuter    = pixCoord;
+    vec2 originalPixCoord = v_texcoord;
+    originalPixCoord *= fullSizeUntransformed;
+    float additionalAlpha = 1.0;
+
+    vec4  pixColor = vec4(1.0, 1.0, 1.0, 1.0);
+
+    bool  done = false;
+
+    pixCoord -= topLeft + fullSize * 0.5;
+    pixCoord *= vec2(lessThan(pixCoord, vec2(0.0))) * -2.0 + 1.0;
+    pixCoordOuter = pixCoord;
+    pixCoord -= fullSize * 0.5 - radius;
+    pixCoordOuter -= fullSize * 0.5 - radiusOuter;
+
+    // center the pixes don't make it top-left
+    pixCoord += vec2(1.0, 1.0) / fullSize;
+    pixCoordOuter += vec2(1.0, 1.0) / fullSize;
+
+#if USE_ROUNDING
+    if (min(pixCoord.x, pixCoord.y) > 0.0 && radius > 0.0) {
+        float dist      = pow(pow(pixCoord.x, roundingPower) + pow(pixCoord.y, roundingPower), 1.0 / roundingPower);
+        float distOuter = pow(pow(pixCoordOuter.x, roundingPower) + pow(pixCoordOuter.y, roundingPower), 1.0 / roundingPower);
+        float h         = (thick / 2.0);
+
+        if (dist < radius - h) {
+            // lower
+            float normalized = smoothstep(0.0, 1.0, (dist - radius + thick + SMOOTHING_CONSTANT) / (SMOOTHING_CONSTANT * 2.0));
+            additionalAlpha *= normalized;
+            done = true;
+        } else if (min(pixCoordOuter.x, pixCoordOuter.y) > 0.0) {
+            // higher
+            float normalized = 1.0 - smoothstep(0.0, 1.0, (distOuter - radiusOuter + SMOOTHING_CONSTANT) / (SMOOTHING_CONSTANT * 2.0));
+            additionalAlpha *= normalized;
+            done = true;
+        } else if (distOuter < radiusOuter - h) {
+            additionalAlpha = 1.0;
+            done            = true;
+        }
+    }
+#endif
+
+    // now check for other shit
+    if (!done) {
+        // distance to all straight bb borders
+        float distanceT = originalPixCoord[1];
+        float distanceB = fullSizeUntransformed[1] - originalPixCoord[1];
+        float distanceL = originalPixCoord[0];
+        float distanceR = fullSizeUntransformed[0] - originalPixCoord[0];
+
+        // get the smallest
+        float smallest = min(min(distanceT, distanceB), min(distanceL, distanceR));
+
+        if (smallest > thick)
+            discard;
+    }
+
+    if (additionalAlpha == 0.0)
+        discard;
+
+    pixColor = getColorForCoord(v_texcoord, gradientLength, gradient, angle, gradient2Length, gradient2, angle2, gradientLerp);
+    pixColor.rgb *= pixColor[3];
+
+#if USE_CM
+    pixColor = doColorManagement(pixColor, sourceTF, targetTF, convertMatrix, srcTFRange, dstTFRange
+#if USE_ICC
+                                 ,
+                                 iccLut3D, iccLutSize
+#else
+#if USE_TONEMAP || USE_SDR_MOD
+                                 ,
+                                 targetPrimariesXYZ
+#endif
+#if USE_TONEMAP
+                                 ,
+                                 maxLuminance, dstMaxLuminance, dstRefLuminance, srcRefLuminance
+#endif
+#if USE_SDR_MOD
+                                 ,
+                                 sdrSaturation, sdrBrightnessMultiplier
+#endif
+#endif
+    );
+#endif
+
+    pixColor *= alpha * additionalAlpha;
+
+    return pixColor;
+}

src/render/shaders/glsl/cm_helpers.glsl

@@ -0,0 +1,248 @@
+#ifndef ALLOW_INCLUDES
+#define ALLOW_INCLUDES
+#extension GL_ARB_shading_language_include : enable
+#endif
+#ifndef CM_HELPERS_GLSL
+#define CM_HELPERS_GLSL
+
+#include "defines.h"
+#include "constants.h"
+
+#if USE_SDR_MOD
+vec4 saturate(vec4 color, mat3 primaries, float saturation) {
+    if (saturation == 1.0)
+        return color;
+    vec3  brightness = vec3(primaries[1][0], primaries[1][1], primaries[1][2]);
+    float Y          = dot(color.rgb, brightness);
+    return vec4(mix(vec3(Y), color.rgb, saturation), color[3]);
+}
+#endif
+
+vec3 applyIcc3DLut(vec3 linearRgb01, highp sampler3D iccLut3D, float iccLutSize) {
+    vec3 x = clamp(linearRgb01, 0.0, 1.0);
+
+    // Map [0..1] to texel centers to avoid edge issues
+    float N     = iccLutSize;
+    vec3  coord = (x * (N - 1.0) + 0.5) / N;
+
+    return texture(iccLut3D, coord).rgb;
+}
+
+vec3 xy2xyz(vec2 xy) {
+    if (xy.y == 0.0)
+        return vec3(0.0, 0.0, 0.0);
+
+    return vec3(xy.x / xy.y, 1.0, (1.0 - xy.x - xy.y) / xy.y);
+}
+
+// The primary source for these transfer functions is https://www.itu.int/dms_pubrec/itu-r/rec/bt/R-REC-BT.1361-0-199802-W!!PDF-E.pdf
+vec3 tfInvPQ(vec3 color) {
+    vec3 E = pow(clamp(color.rgb, vec3(0.0), vec3(1.0)), vec3(PQ_INV_M2));
+    return pow((max(E - PQ_C1, vec3(0.0))) / (PQ_C2 - PQ_C3 * E), vec3(PQ_INV_M1));
+}
+
+vec3 tfInvHLG(vec3 color) {
+    bvec3 isLow = lessThanEqual(color.rgb, vec3(HLG_E_CUT));
+    vec3  lo    = color.rgb * color.rgb / 3.0;
+    vec3  hi    = (exp((color.rgb - HLG_C) / HLG_A) + HLG_B) / 12.0;
+    return mix(hi, lo, isLow);
+}
+
+// Many transfer functions (including sRGB) follow the same pattern: a linear
+// segment for small values and a power function for larger values. The
+// following function implements this pattern from which sRGB, BT.1886, and
+// others can be derived by plugging in the right constants.
+vec3 tfInvLinPow(vec3 color, float gamma, float thres, float scale, float alpha) {
+    bvec3 isLow = lessThanEqual(color.rgb, vec3(thres * scale));
+    vec3  lo    = color.rgb / scale;
+    vec3  hi    = pow((color.rgb + alpha - 1.0) / alpha, vec3(gamma));
+    return mix(hi, lo, isLow);
+}
+
+vec3 tfInvSRGB(vec3 color) {
+    return tfInvLinPow(color, SRGB_POW, SRGB_CUT, SRGB_SCALE, SRGB_ALPHA);
+}
+
+vec3 tfInvExtSRGB(vec3 color) {
+    // EXT sRGB is the sRGB transfer function mirrored around 0.
+    return sign(color) * tfInvSRGB(abs(color));
+}
+
+vec3 tfInvBT1886(vec3 color) {
+    return tfInvLinPow(color, BT1886_POW, BT1886_CUT, BT1886_SCALE, BT1886_ALPHA);
+}
+
+vec3 tfInvXVYCC(vec3 color) {
+    // The inverse transfer function for XVYCC is the BT1886 transfer function mirrored around 0,
+    // same as what EXT sRGB is to sRGB.
+    return sign(color) * tfInvBT1886(abs(color));
+}
+
+vec3 tfInvST240(vec3 color) {
+    return tfInvLinPow(color, ST240_POW, ST240_CUT, ST240_SCALE, ST240_ALPHA);
+}
+
+// Forward transfer functions corresponding to the inverse functions above.
+vec3 tfPQ(vec3 color) {
+    vec3 E = pow(clamp(color.rgb, vec3(0.0), vec3(1.0)), vec3(PQ_M1));
+    return pow((vec3(PQ_C1) + PQ_C2 * E) / (vec3(1.0) + PQ_C3 * E), vec3(PQ_M2));
+}
+
+vec3 tfHLG(vec3 color) {
+    bvec3 isLow = lessThanEqual(color.rgb, vec3(HLG_D_CUT));
+    vec3  lo    = sqrt(max(color.rgb, vec3(0.0)) * 3.0);
+    vec3  hi    = HLG_A * log(max(12.0 * color.rgb - HLG_B, vec3(0.0001))) + HLG_C;
+    return mix(hi, lo, isLow);
+}
+
+vec3 tfLinPow(vec3 color, float gamma, float thres, float scale, float alpha) {
+    bvec3 isLow = lessThanEqual(color.rgb, vec3(thres));
+    vec3  lo    = color.rgb * scale;
+    vec3  hi    = pow(color.rgb, vec3(1.0 / gamma)) * alpha - (alpha - 1.0);
+    return mix(hi, lo, isLow);
+}
+
+vec3 tfSRGB(vec3 color) {
+    return tfLinPow(color, SRGB_POW, SRGB_CUT, SRGB_SCALE, SRGB_ALPHA);
+}
+
+vec3 tfExtSRGB(vec3 color) {
+    // EXT sRGB is the sRGB transfer function mirrored around 0.
+    return sign(color) * tfSRGB(abs(color));
+}
+
+vec3 tfBT1886(vec3 color) {
+    return tfLinPow(color, BT1886_POW, BT1886_CUT, BT1886_SCALE, BT1886_ALPHA);
+}
+
+vec3 tfXVYCC(vec3 color) {
+    // The transfer function for XVYCC is the BT1886 transfer function mirrored around 0,
+    // same as what EXT sRGB is to sRGB.
+    return sign(color) * tfBT1886(abs(color));
+}
+
+vec3 tfST240(vec3 color) {
+    return tfLinPow(color, ST240_POW, ST240_CUT, ST240_SCALE, ST240_ALPHA);
+}
+
+vec3 toLinearRGB(vec3 color, int tf) {
+    switch (tf) {
+        case CM_TRANSFER_FUNCTION_EXT_LINEAR: return color;
+        case CM_TRANSFER_FUNCTION_ST2084_PQ: return tfInvPQ(color);
+        case CM_TRANSFER_FUNCTION_GAMMA22: return pow(max(color, vec3(0.0)), vec3(2.2));
+        case CM_TRANSFER_FUNCTION_GAMMA28: return pow(max(color, vec3(0.0)), vec3(2.8));
+        case CM_TRANSFER_FUNCTION_HLG: return tfInvHLG(color);
+        case CM_TRANSFER_FUNCTION_EXT_SRGB: return tfInvExtSRGB(color);
+        case CM_TRANSFER_FUNCTION_BT1886: return tfInvBT1886(color);
+        case CM_TRANSFER_FUNCTION_ST240: return tfInvST240(color);
+        case CM_TRANSFER_FUNCTION_LOG_100: return mix(exp((color - 1.0) * 2.0 * log(10.0)), vec3(0.0), lessThanEqual(color, vec3(0.0)));
+        case CM_TRANSFER_FUNCTION_LOG_316: return mix(exp((color - 1.0) * 2.5 * log(10.0)), vec3(0.0), lessThanEqual(color, vec3(0.0)));
+        case CM_TRANSFER_FUNCTION_XVYCC: return tfInvXVYCC(color);
+        case CM_TRANSFER_FUNCTION_ST428: return pow(max(color, vec3(0.0)), vec3(ST428_POW)) * ST428_SCALE;
+        case CM_TRANSFER_FUNCTION_SRGB:
+        default: return tfInvSRGB(color);
+    }
+}
+
+vec4 toLinear(vec4 color, int tf) {
+    if (tf == CM_TRANSFER_FUNCTION_EXT_LINEAR)
+        return color;
+
+    color.rgb /= max(color.a, 0.001);
+    color.rgb = toLinearRGB(color.rgb, tf);
+    color.rgb *= color.a;
+    return color;
+}
+
+vec4 toNit(vec4 color, vec2 range) {
+    color.rgb = color.rgb * (range[1] - range[0]) + range[0];
+    return color;
+}
+
+vec3 fromLinearRGB(vec3 color, int tf) {
+    switch (tf) {
+        case CM_TRANSFER_FUNCTION_EXT_LINEAR: return color;
+        case CM_TRANSFER_FUNCTION_ST2084_PQ: return tfPQ(color);
+        case CM_TRANSFER_FUNCTION_GAMMA22: return pow(max(color, vec3(0.0)), vec3(1.0 / 2.2));
+        case CM_TRANSFER_FUNCTION_GAMMA28: return pow(max(color, vec3(0.0)), vec3(1.0 / 2.8));
+        case CM_TRANSFER_FUNCTION_HLG: return tfHLG(color);
+        case CM_TRANSFER_FUNCTION_EXT_SRGB: return tfExtSRGB(color);
+        case CM_TRANSFER_FUNCTION_BT1886: return tfBT1886(color);
+        case CM_TRANSFER_FUNCTION_ST240: return tfST240(color);
+        case CM_TRANSFER_FUNCTION_LOG_100: return mix(1.0 + log(color) / log(10.0) / 2.0, vec3(0.0), lessThanEqual(color, vec3(0.01)));
+        case CM_TRANSFER_FUNCTION_LOG_316: return mix(1.0 + log(color) / log(10.0) / 2.5, vec3(0.0), lessThanEqual(color, vec3(sqrt(10.0) / 1000.0)));
+        case CM_TRANSFER_FUNCTION_XVYCC: return tfXVYCC(color);
+        case CM_TRANSFER_FUNCTION_ST428: return pow(max(color, vec3(0.0)) / ST428_SCALE, vec3(1.0 / ST428_POW));
+        case CM_TRANSFER_FUNCTION_SRGB:
+        default: return tfSRGB(color);
+    }
+}
+
+vec4 fromLinear(vec4 color, int tf) {
+    if (tf == CM_TRANSFER_FUNCTION_EXT_LINEAR)
+        return color;
+
+    color.rgb /= max(color.a, 0.001);
+    color.rgb = fromLinearRGB(color.rgb, tf);
+    color.rgb *= color.a;
+    return color;
+}
+
+vec4 fromLinearNit(vec4 color, int tf, vec2 range) {
+    if (tf == CM_TRANSFER_FUNCTION_EXT_LINEAR)
+        color.rgb = color.rgb / SDR_MAX_LUMINANCE;
+    else {
+        color.rgb /= max(color.a, 0.001);
+        color.rgb = (color.rgb - range[0]) / (range[1] - range[0]);
+        color.rgb = fromLinearRGB(color.rgb, tf);
+        color.rgb *= color.a;
+    }
+    return color;
+}
+
+#if USE_TONEMAP
+#include "tonemap.glsl"
+#endif
+
+vec4 doColorManagement(vec4 pixColor, int srcTF, int dstTF, mat3 convertMatrix, vec2 srcTFRange, vec2 dstTFRange
+#if USE_ICC
+                       ,
+                       highp sampler3D iccLut3D, float iccLutSize
+#else
+#if USE_TONEMAP || USE_SDR_MOD
+                       ,
+                       mat3 dstxyz
+#endif
+#if USE_TONEMAP
+                       ,
+                       float maxLuminance, float dstMaxLuminance, float dstRefLuminance, float srcRefLuminance
+#endif
+#if USE_SDR_MOD
+                       ,
+                       float sdrSaturation, float sdrBrightnessMultiplier
+#endif
+#endif
+) {
+    pixColor.rgb /= max(pixColor.a, 0.001);
+    pixColor.rgb = toLinearRGB(pixColor.rgb, srcTF);
+#if USE_ICC
+    pixColor.rgb = applyIcc3DLut(pixColor.rgb, iccLut3D, iccLutSize);
+    pixColor.rgb *= pixColor.a;
+#else
+    pixColor.rgb = convertMatrix * pixColor.rgb;
+    pixColor     = toNit(pixColor, srcTFRange);
+    pixColor.rgb *= pixColor.a;
+#if USE_TONEMAP
+    pixColor = tonemap(pixColor, dstxyz, maxLuminance, dstMaxLuminance, dstRefLuminance, srcRefLuminance);
+#endif
+    pixColor = fromLinearNit(pixColor, dstTF, dstTFRange);
+#if USE_SDR_MOD
+    pixColor = saturate(pixColor, dstxyz, sdrSaturation);
+    pixColor.rgb *= sdrBrightnessMultiplier;
+#endif
+#endif
+
+    return pixColor;
+}
+
+#endif

src/render/shaders/glsl/constants.h

@@ -0,0 +1,62 @@
+#ifndef CONSTANTS_H
+#define CONSTANTS_H
+//enum eTransferFunction
+#define CM_TRANSFER_FUNCTION_BT1886     1
+#define CM_TRANSFER_FUNCTION_GAMMA22    2
+#define CM_TRANSFER_FUNCTION_GAMMA28    3
+#define CM_TRANSFER_FUNCTION_ST240      4
+#define CM_TRANSFER_FUNCTION_EXT_LINEAR 5
+#define CM_TRANSFER_FUNCTION_LOG_100    6
+#define CM_TRANSFER_FUNCTION_LOG_316    7
+#define CM_TRANSFER_FUNCTION_XVYCC      8
+#define CM_TRANSFER_FUNCTION_SRGB       9
+#define CM_TRANSFER_FUNCTION_EXT_SRGB   10
+#define CM_TRANSFER_FUNCTION_ST2084_PQ  11
+#define CM_TRANSFER_FUNCTION_ST428      12
+#define CM_TRANSFER_FUNCTION_HLG        13
+
+// sRGB constants
+#define SRGB_POW   2.4
+#define SRGB_CUT   0.0031308
+#define SRGB_SCALE 12.92
+#define SRGB_ALPHA 1.055
+
+#define BT1886_POW   (1.0 / 0.45)
+#define BT1886_CUT   0.018053968510807
+#define BT1886_SCALE 4.5
+#define BT1886_ALPHA (1.0 + 5.5 * BT1886_CUT)
+
+// See http://car.france3.mars.free.fr/HD/INA-%2026%20jan%2006/SMPTE%20normes%20et%20confs/s240m.pdf
+#define ST240_POW   (1.0 / 0.45)
+#define ST240_CUT   0.0228
+#define ST240_SCALE 4.0
+#define ST240_ALPHA 1.1115
+
+#define ST428_POW   2.6
+#define ST428_SCALE (52.37 / 48.0)
+
+// PQ constants
+#define PQ_M1     0.1593017578125
+#define PQ_M2     78.84375
+#define PQ_INV_M1 (1.0 / PQ_M1)
+#define PQ_INV_M2 (1.0 / PQ_M2)
+#define PQ_C1     0.8359375
+#define PQ_C2     18.8515625
+#define PQ_C3     18.6875
+
+// HLG constants
+#define HLG_D_CUT (1.0 / 12.0)
+#define HLG_E_CUT 0.5
+#define HLG_A     0.17883277
+#define HLG_B     0.28466892
+#define HLG_C     0.55991073
+
+#define SDR_MIN_LUMINANCE 0.2
+#define SDR_MAX_LUMINANCE 80.0
+#define HDR_MIN_LUMINANCE 0.005
+#define HDR_MAX_LUMINANCE 10000.0
+#define HLG_MAX_LUMINANCE 1000.0
+
+#define M_E 2.718281828459045
+
+#endif

src/render/shaders/glsl/defines.h

@@ -0,0 +1,10 @@
+// DO NOT EDIT. Will be overwritten in runtime
+#define USE_RGBA     1
+#define USE_DISCARD  1
+#define USE_TINT     1
+#define USE_ROUNDING 1
+#define USE_CM       1
+#define USE_TONEMAP  1
+#define USE_SDR_MOD  1
+#define USE_BLUR     1
+#define USE_ICC      1

src/render/shaders/glsl/discard.glsl

@@ -1,3 +0,0 @@
-uniform bool discardOpaque;
-uniform bool discardAlpha;
-uniform float discardAlphaValue;

src/render/shaders/glsl/do_CM.glsl

@@ -1 +0,0 @@
-pixColor = doColorManagement(pixColor, sourceTF, targetTF, targetPrimariesXYZ);

src/render/shaders/glsl/do_discard.glsl

@@ -1,5 +0,0 @@
-if (discardOpaque && pixColor.a * alpha == 1.0)
-    discard;
-
-if (discardAlpha && pixColor.a <= discardAlphaValue)
-    discard;

src/render/shaders/glsl/do_rounding.glsl

@@ -1 +0,0 @@
-pixColor = rounding(pixColor);

src/render/shaders/glsl/do_sdr_mod.glsl

@@ -1,2 +0,0 @@
-pixColor = saturate(pixColor, dstxyz, sdrSaturation);
-pixColor.rgb *= sdrBrightnessMultiplier;

src/render/shaders/glsl/do_tint.glsl

@@ -1 +0,0 @@
-pixColor.rgb = pixColor.rgb * tint;

src/render/shaders/glsl/do_tonemap.glsl

@@ -1 +0,0 @@
-pixColor = tonemap(pixColor, dstxyz);

src/render/shaders/glsl/ext.frag

@@ -1,5 +1,6 @@
 #version 300 es
 
+#define ALLOW_INCLUDES
 #extension GL_ARB_shading_language_include : enable
 #extension GL_OES_EGL_image_external_essl3 : require
 
@@ -8,6 +9,10 @@ in vec2 v_texcoord;
 uniform samplerExternalOES tex;
 uniform float              alpha;
 
+uniform float              radius;
+uniform float              roundingPower;
+uniform vec2               topLeft;
+uniform vec2               fullSize;
 #include "rounding.glsl"
 
 uniform int  discardOpaque;
@@ -32,7 +37,7 @@ void main() {
     }
 
     if (radius > 0.0)
-		pixColor = rounding(pixColor);
+        pixColor = rounding(pixColor, radius, roundingPower, topLeft, fullSize);
 
     fragColor = pixColor * alpha;
 }

src/render/shaders/glsl/get_rgb_pixel.glsl

@@ -1 +0,0 @@
-#include "get_rgbx_pixel.glsl"

src/render/shaders/glsl/get_rgba_pixel.glsl

@@ -1 +0,0 @@
-vec4 pixColor = texture(tex, v_texcoord);

src/render/shaders/glsl/get_rgbx_pixel.glsl

@@ -1 +0,0 @@
-vec4 pixColor = vec4(texture(tex, v_texcoord).rgb, 1.0);

src/render/shaders/glsl/primaries_xyz.glsl

@@ -1 +0,0 @@
-#include "primaries_xyz_uniform.glsl"

src/render/shaders/glsl/primaries_xyz_const.glsl

@@ -1 +0,0 @@
-const mat3 targetPrimariesXYZ = mat3(0.0);

src/render/shaders/glsl/primaries_xyz_uniform.glsl

@@ -1 +0,0 @@
-uniform mat3 targetPrimariesXYZ;

src/render/shaders/glsl/quad.frag

@@ -1,17 +1,27 @@
 #version 300 es
 
+#define ALLOW_INCLUDES
 #extension GL_ARB_shading_language_include : enable
+#include "defines.h"
+
 precision highp float;
 in vec4   v_color;
 
+#if USE_ROUNDING
+uniform float radius;
+uniform float roundingPower;
+uniform vec2  topLeft;
+uniform vec2  fullSize;
 #include "rounding.glsl"
+#endif
 
 layout(location = 0) out vec4 fragColor;
 void main() {
     vec4 pixColor = v_color;
 
-    if (radius > 0.0) 
+#if USE_ROUNDING
-        pixColor = rounding(pixColor);
+    pixColor = rounding(pixColor, radius, roundingPower, topLeft, fullSize);
+#endif
 
     fragColor = pixColor;
 }

src/render/shaders/glsl/rounding.glsl

@@ -1,13 +1,10 @@
+#ifndef ROUNDING_GLSL
+#define ROUNDING_GLSL
 // smoothing constant for the edge: more = blurrier, but smoother
 #define M_PI               3.1415926535897932384626433832795
 #define SMOOTHING_CONSTANT (M_PI / 5.34665792551)
 
-uniform float radius;
+vec4 rounding(vec4 color, float radius, float roundingPower, vec2 topLeft, vec2 fullSize) {
-uniform float roundingPower;
-uniform vec2 topLeft;
-uniform vec2 fullSize;
-
-vec4 rounding(vec4 color) {
     vec2 pixCoord = vec2(gl_FragCoord);
     pixCoord -= topLeft + fullSize * 0.5;
     pixCoord *= vec2(lessThan(pixCoord, vec2(0.0))) * -2.0 + 1.0;
@@ -15,7 +12,7 @@ vec4 rounding(vec4 color) {
     pixCoord += vec2(1.0, 1.0) / fullSize; // center the pix don't make it top-left
 
     if (pixCoord.x + pixCoord.y > radius) {
-        float dist = pow(pow(pixCoord.x, roundingPower) + pow(pixCoord.y, roundingPower), 1.0/roundingPower);
+        float dist = pow(pow(pixCoord.x, roundingPower) + pow(pixCoord.y, roundingPower), 1.0 / roundingPower);
 
         if (dist > radius + SMOOTHING_CONSTANT)
             discard;
@@ -27,3 +24,4 @@ vec4 rounding(vec4 color) {
 
     return color;
 }
+#endif

src/render/shaders/glsl/sdr_mod.glsl

@@ -1,10 +0,0 @@
-uniform float sdrSaturation;
-uniform float sdrBrightnessMultiplier;
-
-vec4 saturate(vec4 color, mat3 primaries, float saturation) {
-    if (saturation == 1.0)
-        return color;
-    vec3 brightness = vec3(primaries[1][0], primaries[1][1], primaries[1][2]);
-    float Y = dot(color.rgb, brightness);
-    return vec4(mix(vec3(Y), color.rgb, saturation), color[3]);
-}

src/render/shaders/glsl/shadow.frag

@@ -1,6 +1,9 @@
 #version 300 es
+#define ALLOW_INCLUDES
 #extension GL_ARB_shading_language_include : enable
 
+#include "defines.h"
+
 precision     highp float;
 in vec4       v_color;
 in vec2       v_texcoord;
@@ -17,77 +20,38 @@ uniform float roundingPower;
 uniform float range;
 uniform float shadowPower;
 
-float pixAlphaRoundedDistance(float distanceToCorner) {
+#if USE_CM
-     if (distanceToCorner > radius) {
+#include "cm_helpers.glsl"
-        return 0.0;
+#include "CM.glsl"
-    }
+#endif
 
-    if (distanceToCorner > radius - range) {
+#include "shadow.glsl"
-        return pow((range - (distanceToCorner - radius + range)) / range, shadowPower); // i think?
-    }
-
-    return 1.0;
-}
-
-float modifiedLength(vec2 a) {
-    return pow(pow(abs(a.x),roundingPower)+pow(abs(a.y),roundingPower),1.0/roundingPower);
-}
 
 layout(location = 0) out vec4 fragColor;
 void main() {
-
     vec4 pixColor = v_color;
-    float originalAlpha = pixColor[3];
 
-    bool done = false;
+    fragColor = getShadow(pixColor, v_texcoord, radius, roundingPower, topLeft, fullSize, range, shadowPower, bottomRight
-
+#if USE_CM
-	vec2 pixCoord = fullSize * v_texcoord;
+                          ,
-
+                          sourceTF, targetTF, convertMatrix, srcTFRange, dstTFRange
-    // ok, now we check the distance to a border.
+#if USE_ICC
-
+                          ,
-    if (pixCoord[0] < topLeft[0]) {
+                          iccLut3D, iccLutSize
-        if (pixCoord[1] < topLeft[1]) {
+#else
-            // top left
+#if USE_TONEMAP || USE_SDR_MOD
-            pixColor[3] = pixColor[3] * pixAlphaRoundedDistance(modifiedLength(pixCoord - topLeft));
+                          ,
-            done = true;
+                          targetPrimariesXYZ
-        } else if (pixCoord[1] > bottomRight[1]) {
+#endif
-            // bottom left
+#if USE_TONEMAP
-            pixColor[3] = pixColor[3] * pixAlphaRoundedDistance(modifiedLength(pixCoord - vec2(topLeft[0], bottomRight[1])));
+                          ,
-            done = true;
+                          maxLuminance, dstMaxLuminance, dstRefLuminance, srcRefLuminance
-        }
+#endif
-    } else if (pixCoord[0] > bottomRight[0]) {
+#if USE_SDR_MOD
-        if (pixCoord[1] < topLeft[1]) {
+                          ,
-            // top right
+                          sdrSaturation, sdrBrightnessMultiplier
-            pixColor[3] = pixColor[3] * pixAlphaRoundedDistance(modifiedLength(pixCoord - vec2(bottomRight[0], topLeft[1])));
+#endif
-            done = true;
+#endif
-        } else if (pixCoord[1] > bottomRight[1]) {
+#endif
-            // bottom right
+    );
-            pixColor[3] = pixColor[3] * pixAlphaRoundedDistance(modifiedLength(pixCoord - bottomRight));
-            done = true;
-        }
-    }
-
-    if (!done) {
-        // distance to all straight bb borders
-        float distanceT = pixCoord[1];
-        float distanceB = fullSize[1] - pixCoord[1];
-        float distanceL = pixCoord[0];
-        float distanceR = fullSize[0] - pixCoord[0];
-
-        // get the smallest
-        float smallest = min(min(distanceT, distanceB), min(distanceL, distanceR));
-
-        if (smallest < range) {
-            pixColor[3] = pixColor[3] * pow((smallest / range), shadowPower);
-        }
-    }
-
-    if (pixColor[3] == 0.0) {
-        discard; return;
-    }
-
-    // premultiply
-    pixColor.rgb *= pixColor[3];
-
-	fragColor = pixColor;
 }

src/render/shaders/glsl/shadow.glsl

@@ -0,0 +1,126 @@
+#ifndef ALLOW_INCLUDES
+#define ALLOW_INCLUDES
+#extension GL_ARB_shading_language_include : enable
+#endif
+#ifndef SHADOW_GLSL
+#define SHADOW_GLSL
+
+#include "cm_helpers.glsl"
+
+float pixAlphaRoundedDistance(float distanceToCorner, float radius, float range, float shadowPower) {
+    if (distanceToCorner > radius) {
+        return 0.0;
+    }
+
+    if (distanceToCorner > radius - range) {
+        return pow((range - (distanceToCorner - radius + range)) / range, shadowPower); // i think?
+    }
+
+    return 1.0;
+}
+
+float modifiedLength(vec2 a, float roundingPower) {
+    return pow(pow(abs(a.x), roundingPower) + pow(abs(a.y), roundingPower), 1.0 / roundingPower);
+}
+
+vec4 getShadow(vec4 pixColor, vec2 v_texcoord, float radius, float roundingPower, vec2 topLeft, vec2 fullSize, float range, float shadowPower, vec2 bottomRight
+#if USE_CM
+               ,
+               int sourceTF, int targetTF, mat3 convertMatrix, vec2 srcTFRange, vec2 dstTFRange
+#if USE_ICC
+               ,
+               highp sampler3D iccLut3D, float iccLutSize
+#else
+#if USE_TONEMAP || USE_SDR_MOD
+               ,
+               mat3 targetPrimariesXYZ
+#endif
+#if USE_TONEMAP
+               ,
+               float maxLuminance, float dstMaxLuminance, float dstRefLuminance, float srcRefLuminance
+#endif
+#if USE_SDR_MOD
+               ,
+               float sdrSaturation, float sdrBrightnessMultiplier
+#endif
+#endif
+#endif
+) {
+    float originalAlpha = pixColor[3];
+
+    bool  done = false;
+
+    vec2  pixCoord = fullSize * v_texcoord;
+
+    // ok, now we check the distance to a border.
+
+    if (pixCoord[0] < topLeft[0]) {
+        if (pixCoord[1] < topLeft[1]) {
+            // top left
+            pixColor[3] = pixColor[3] * pixAlphaRoundedDistance(modifiedLength(pixCoord - topLeft, roundingPower), radius, range, shadowPower);
+            done        = true;
+        } else if (pixCoord[1] > bottomRight[1]) {
+            // bottom left
+            pixColor[3] = pixColor[3] * pixAlphaRoundedDistance(modifiedLength(pixCoord - vec2(topLeft[0], bottomRight[1]), roundingPower), radius, range, shadowPower);
+            done        = true;
+        }
+    } else if (pixCoord[0] > bottomRight[0]) {
+        if (pixCoord[1] < topLeft[1]) {
+            // top right
+            pixColor[3] = pixColor[3] * pixAlphaRoundedDistance(modifiedLength(pixCoord - vec2(bottomRight[0], topLeft[1]), roundingPower), radius, range, shadowPower);
+            done        = true;
+        } else if (pixCoord[1] > bottomRight[1]) {
+            // bottom right
+            pixColor[3] = pixColor[3] * pixAlphaRoundedDistance(modifiedLength(pixCoord - bottomRight, roundingPower), radius, range, shadowPower);
+            done        = true;
+        }
+    }
+
+    if (!done) {
+        // distance to all straight bb borders
+        float distanceT = pixCoord[1];
+        float distanceB = fullSize[1] - pixCoord[1];
+        float distanceL = pixCoord[0];
+        float distanceR = fullSize[0] - pixCoord[0];
+
+        // get the smallest
+        float smallest = min(min(distanceT, distanceB), min(distanceL, distanceR));
+
+        if (smallest < range) {
+            pixColor[3] = pixColor[3] * pow((smallest / range), shadowPower);
+        }
+    }
+
+    if (pixColor[3] == 0.0) {
+        discard;
+        return pixColor;
+    }
+
+    // premultiply
+    pixColor.rgb *= pixColor[3];
+
+#if USE_CM
+    pixColor = doColorManagement(pixColor, sourceTF, targetTF, convertMatrix, srcTFRange, dstTFRange
+#if USE_ICC
+                                 ,
+                                 iccLut3D, iccLutSize
+#else
+#if USE_TONEMAP || USE_SDR_MOD
+                                 ,
+                                 targetPrimariesXYZ
+#endif
+#if USE_TONEMAP
+                                 ,
+                                 maxLuminance, dstMaxLuminance, dstRefLuminance, srcRefLuminance
+#endif
+#if USE_SDR_MOD
+                                 ,
+                                 sdrSaturation, sdrBrightnessMultiplier
+#endif
+#endif
+    );
+#endif
+
+    return pixColor;
+}
+#endif

src/render/shaders/glsl/surface.frag

@@ -1,25 +1,104 @@
 #version 300 es
+#define ALLOW_INCLUDES
 #extension GL_ARB_shading_language_include : enable
 
+#include "defines.h"
+
 precision         highp float;
 in vec2           v_texcoord;
 uniform sampler2D tex;
+#if USE_BLUR
+uniform vec2      uvSize;
+uniform vec2      uvOffset;
+uniform sampler2D blurredBG;
+#endif
 
 uniform float alpha;
 
-#include "discard.glsl"
+#if USE_DISCARD
-#include "tint.glsl"
+uniform bool  discardOpaque;
+uniform bool  discardAlpha;
+uniform float discardAlphaValue;
+#endif
+
+#if USE_TINT
+uniform vec3 tint;
+#endif
+
+#if USE_ROUNDING
+uniform float radius;
+uniform float roundingPower;
+uniform vec2  topLeft;
+uniform vec2  fullSize;
 #include "rounding.glsl"
-#include "surface_CM.glsl"
+#endif
+
+#if USE_CM
+uniform int sourceTF; // eTransferFunction
+uniform int targetTF; // eTransferFunction
+
+#if USE_TONEMAP || USE_SDR_MOD
+uniform mat3 targetPrimariesXYZ;
+#else
+const mat3 targetPrimariesXYZ = mat3(0.0);
+#endif
+
+#include "CM.glsl"
+#endif
 
 layout(location = 0) out vec4 fragColor;
 void main() {
-    #include "get_rgb_pixel.glsl"
+#if USE_RGBA
+    vec4 pixColor = texture(tex, v_texcoord);
+#else
+    vec4 pixColor = vec4(texture(tex, v_texcoord).rgb, 1.0);
+#endif
 
-    #include "do_discard.glsl"
+#if USE_DISCARD && !USE_BLUR
-    #include "do_CM.glsl"
+    if (discardOpaque && pixColor.a * alpha == 1.0)
-    #include "do_tint.glsl"
+        discard;
-    #include "do_rounding.glsl"
+
+    if (discardAlpha && pixColor.a <= discardAlphaValue)
+        discard;
+#endif
+
+#if USE_CM
+    pixColor = doColorManagement(pixColor, sourceTF, targetTF, convertMatrix, srcTFRange, dstTFRange
+#if USE_ICC
+                                 ,
+                                 iccLut3D, iccLutSize
+#else
+#if USE_TONEMAP || USE_SDR_MOD
+                                 ,
+                                 targetPrimariesXYZ
+#endif
+#if USE_TONEMAP
+                                 ,
+                                 maxLuminance, dstMaxLuminance, dstRefLuminance, srcRefLuminance
+#endif
+#if USE_SDR_MOD
+                                 ,
+                                 sdrSaturation, sdrBrightnessMultiplier
+#endif
+#endif
+    );
+#endif
+
+#if USE_TINT
+    pixColor.rgb = pixColor.rgb * tint;
+#endif
+
+#if USE_ROUNDING
+    pixColor = rounding(pixColor, radius, roundingPower, topLeft, fullSize);
+#endif
+#if USE_BLUR
+#if USE_DISCARD
+    pixColor = mix(pixColor, vec4(mix(texture(blurredBG, v_texcoord * uvSize + uvOffset).rgb, pixColor.rgb, pixColor.a), 1.0),
+                   discardAlpha && (pixColor.a <= discardAlphaValue) ? 0.0 : 1.0);
+#else
+    pixColor = vec4(mix(texture(blurredBG, v_texcoord * uvSize + uvOffset).rgb, pixColor.rgb, pixColor.a), 1.0);
+#endif
+#endif
 
     fragColor = pixColor * alpha;
 }

src/render/shaders/glsl/surface_CM.glsl

@@ -1,4 +0,0 @@
-uniform int sourceTF; // eTransferFunction
-uniform int targetTF; // eTransferFunction
-#include "primaries_xyz.glsl"
-#include "CM.glsl"

src/render/shaders/glsl/tint.glsl

@@ -1 +0,0 @@
-uniform vec3 tint;

src/render/shaders/glsl/tonemap.glsl

@@ -1,17 +1,15 @@
-uniform float maxLuminance;
+#ifndef ALLOW_INCLUDES
-uniform float dstMaxLuminance;
+#define ALLOW_INCLUDES
-uniform float dstRefLuminance;
+#extension GL_ARB_shading_language_include : enable
+#endif
+#include "constants.h"
 
-const mat3 BT2020toLMS = mat3(
+const mat3 BT2020toLMS = mat3(0.3592, 0.6976, -0.0358, -0.1922, 1.1004, 0.0755, 0.0070, 0.0749, 0.8434);
-    0.3592, 0.6976, -0.0358,
-    -0.1922, 1.1004, 0.0755,
-    0.0070, 0.0749, 0.8434
-);
 //const mat3 LMStoBT2020 = inverse(BT2020toLMS);
-const mat3 LMStoBT2020 = mat3(
+const mat3 LMStoBT2020 = mat3(                                                //
-    2.0701800566956135096, -1.3264568761030210255, 0.20661600684785517081,
+    2.0701800566956135096, -1.3264568761030210255, 0.20661600684785517081,    //
-    0.36498825003265747974, 0.68046736285223514102, -0.045421753075853231409,
+    0.36498825003265747974, 0.68046736285223514102, -0.045421753075853231409, //
-    -0.049595542238932107896, -0.049421161186757487412, 1.1879959417328034394
+    -0.049595542238932107896, -0.049421161186757487412, 1.1879959417328034394 //
 );
 
 // const mat3 ICtCpPQ = transpose(mat3(
@@ -19,16 +17,16 @@ const mat3 LMStoBT2020 = mat3(
 //     6610.0, -13613.0, 7003.0,
 //     17933.0, -17390.0, -543.0
 // ) / 4096.0);
-const mat3 ICtCpPQ = mat3(
+const mat3 ICtCpPQ = mat3(                //
-    0.5,  1.61376953125,   4.378173828125,
+    0.5, 1.61376953125, 4.378173828125,   //
-    0.5, -3.323486328125, -4.24560546875,
+    0.5, -3.323486328125, -4.24560546875, //
-    0.0,  1.709716796875, -0.132568359375
+    0.0, 1.709716796875, -0.132568359375  //
 );
 //const mat3 ICtCpPQInv = inverse(ICtCpPQ);
-const mat3 ICtCpPQInv = mat3(
+const mat3 ICtCpPQInv = mat3(                                                //
-    1.0,                     1.0,                     1.0,
+    1.0, 1.0, 1.0,                                                           //
-    0.0086090370379327566,  -0.0086090370379327566,   0.560031335710679118,
+    0.0086090370379327566, -0.0086090370379327566, 0.560031335710679118,     //
-    0.11102962500302595656, -0.11102962500302595656, -0.32062717498731885185
+    0.11102962500302595656, -0.11102962500302595656, -0.32062717498731885185 //
 );
 
 // unused for now
@@ -39,7 +37,7 @@ const mat3 ICtCpPQInv = mat3(
 // ) / 4096.0);
 // const mat3 ICtCpHLGInv = inverse(ICtCpHLG);
 
-vec4 tonemap(vec4 color, mat3 dstXYZ) {
+vec4 tonemap(vec4 color, mat3 dstXYZ, float maxLuminance, float dstMaxLuminance, float dstRefLuminance, float srcRefLuminance) {
     if (maxLuminance < dstMaxLuminance * 1.01)
         return vec4(clamp(color.rgb, vec3(0.0), vec3(dstMaxLuminance)), color[3]);
 
@@ -50,10 +48,7 @@ vec4 tonemap(vec4 color, mat3 dstXYZ) {
     vec3  ICtCp = ICtCpPQ * lms;
 
     float E         = pow(clamp(ICtCp[0], 0.0, 1.0), PQ_INV_M2);
-    float luminance = pow(
+    float luminance = pow((max(E - PQ_C1, 0.0)) / (PQ_C2 - PQ_C3 * E), PQ_INV_M1) * HDR_MAX_LUMINANCE;
-        (max(E - PQ_C1, 0.0)) / (PQ_C2 - PQ_C3 * E),
-        PQ_INV_M1
-    ) * HDR_MAX_LUMINANCE;
 
     float linearPart         = min(luminance, dstRefLuminance);
     float luminanceAboveRef  = max(luminance - dstRefLuminance, 0.0);