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renderer: add simple color management (#9506)

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Adds proper color management and transformations for CM surfaces.
This commit is contained in:
UjinT34 2025-03-14 02:15:18 +03:00 • committed by GitHub
parent e86d3a14e4
commit 8c97cb7858
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GPG key ID: B5690EEEBB952194
14 changed files with 823 additions and 179 deletions
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35
src/protocols/types/ColorManagement.hpp
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@ -48,10 +48,17 @@ namespace NColorManagement {
}
struct SPCPRimaries {
struct {
struct xy { //NOLINT(readability-identifier-naming)
float x = 0;
float y = 0;
bool operator==(const xy& p2) const {
return x == p2.x && y == p2.y;
}
} red, green, blue, white;
bool operator==(const SPCPRimaries& p2) const {
return red == p2.red && green == p2.green && blue == p2.blue && white == p2.white;
}
};
namespace NColorPrimaries {
@ -102,6 +109,7 @@ namespace NColorManagement {
.blue = {.x = 0.150, .y = 0.060},
.white = {.x = 0.314, .y = 0.351},
};
static const auto DISPLAY_P3 = SPCPRimaries{
.red = {.x = 0.680, .y = 0.320},
.green = {.x = 0.265, .y = 0.690},
@ -125,6 +133,9 @@ namespace NColorManagement {
int fd = -1;
uint32_t length = 0;
uint32_t offset = 0;
bool operator==(const SIccFile& i2) const {
return fd == i2.fd;
}
} icc;
bool windowsScRGB = false;
@ -135,7 +146,8 @@ namespace NColorManagement {
bool primariesNameSet = false;
ePrimaries primariesNamed = CM_PRIMARIES_SRGB;
// primaries are stored as FP values with the same scale as standard defines (0.0 - 1.0)
// wayland protocol expects int32_t values multiplied by 10000
// wayland protocol expects int32_t values multiplied by 1000000
// xx protocol expects int32_t values multiplied by 10000
// drm expects uint16_t values multiplied by 50000
// frog protocol expects drm values
SPCPRimaries primaries, masteringPrimaries;
@ -146,13 +158,32 @@ namespace NColorManagement {
float min = 0.2; // 0.2 cd/m²
uint32_t max = 80; // 80 cd/m²
uint32_t reference = 80; // 80 cd/m²
bool operator==(const SPCLuminances& l2) const {
return min == l2.min && max == l2.max && reference == l2.reference;
}
} luminances;
struct SPCMasteringLuminances {
float min = 0;
uint32_t max = 0;
bool operator==(const SPCMasteringLuminances& l2) const {
return min == l2.min && max == l2.max;
}
} masteringLuminances;
uint32_t maxCLL = 0;
uint32_t maxFALL = 0;
bool operator==(const SImageDescription& d2) const {
return (id != 0 && id == d2.id) ||
(icc == d2.icc && windowsScRGB == d2.windowsScRGB && transferFunction == d2.transferFunction && transferFunctionPower == d2.transferFunctionPower &&
((primariesNameSet && primariesNamed == d2.primariesNameSet) || (primaries == d2.primaries)) && masteringPrimaries == d2.masteringPrimaries &&
luminances == d2.luminances && masteringLuminances == d2.masteringLuminances && maxCLL == d2.maxCLL && maxFALL == d2.maxFALL);
}
const SPCPRimaries& getPrimaries() const {
if (primariesNameSet || primaries == SPCPRimaries{})
return NColorManagement::getPrimaries(primariesNamed);
return primaries;
}
};
}