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Finalized the SDL render API colorspaces

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The renderer will always use the sRGB colorspace for drawing, and will default to the sRGB output colorspace. If you want blending in linear space and HDR support, you can select the scRGB output colorspace, which is supported by the direct3d11 and direct3d12
This commit is contained in:
Sam Lantinga
2024-02-02 12:09:37 -08:00
parent 7c089f4e57
commit 9591b2cfb4
12 changed files with 195 additions and 248 deletions
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10
include/SDL3/SDL_pixels.h
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@@ -558,6 +558,8 @@ typedef enum
typedef enum
{
SDL_COLORSPACE_UNKNOWN,
/* sRGB is a gamma corrected colorspace, and the default colorspace for SDL rendering and 8-bit RGB surfaces */
SDL_COLORSPACE_SRGB = /**< Equivalent to DXGI_COLOR_SPACE_RGB_FULL_G22_NONE_P709 */
SDL_DEFINE_COLORSPACE(SDL_COLOR_TYPE_RGB,
SDL_COLOR_RANGE_FULL,
@@ -565,6 +567,8 @@ typedef enum
SDL_TRANSFER_CHARACTERISTICS_SRGB,
SDL_MATRIX_COEFFICIENTS_UNSPECIFIED,
SDL_CHROMA_LOCATION_NONE),
/* scRGB is a linear colorspace and the default colorspace for floating point surfaces */
SDL_COLORSPACE_SCRGB = /**< Equivalent to DXGI_COLOR_SPACE_RGB_FULL_G10_NONE_P709 */
SDL_DEFINE_COLORSPACE(SDL_COLOR_TYPE_RGB,
SDL_COLOR_RANGE_FULL,
@@ -572,6 +576,8 @@ typedef enum
SDL_TRANSFER_CHARACTERISTICS_LINEAR,
SDL_MATRIX_COEFFICIENTS_UNSPECIFIED,
SDL_CHROMA_LOCATION_NONE),
/* HDR10 is a non-linear HDR colorspace and the default colorspace for 10-bit surfaces */
SDL_COLORSPACE_HDR10 = /**< Equivalent to DXGI_COLOR_SPACE_RGB_FULL_G2084_NONE_P2020 */
SDL_DEFINE_COLORSPACE(SDL_COLOR_TYPE_RGB,
SDL_COLOR_RANGE_FULL,
@@ -579,6 +585,7 @@ typedef enum
SDL_TRANSFER_CHARACTERISTICS_PQ,
SDL_MATRIX_COEFFICIENTS_UNSPECIFIED,
SDL_CHROMA_LOCATION_NONE),
SDL_COLORSPACE_BT601_LIMITED = /**< Equivalent to DXGI_COLOR_SPACE_YCBCR_STUDIO_G22_LEFT_P601 */
SDL_DEFINE_COLORSPACE(SDL_COLOR_TYPE_YCBCR,
SDL_COLOR_RANGE_LIMITED,
@@ -586,6 +593,7 @@ typedef enum
SDL_TRANSFER_CHARACTERISTICS_BT601,
SDL_MATRIX_COEFFICIENTS_BT601,
SDL_CHROMA_LOCATION_LEFT),
SDL_COLORSPACE_BT601_FULL = /**< Equivalent to DXGI_COLOR_SPACE_YCBCR_STUDIO_G22_LEFT_P601 */
SDL_DEFINE_COLORSPACE(SDL_COLOR_TYPE_YCBCR,
SDL_COLOR_RANGE_FULL,
@@ -593,6 +601,7 @@ typedef enum
SDL_TRANSFER_CHARACTERISTICS_BT601,
SDL_MATRIX_COEFFICIENTS_BT601,
SDL_CHROMA_LOCATION_LEFT),
SDL_COLORSPACE_BT709_LIMITED = /**< Equivalent to DXGI_COLOR_SPACE_YCBCR_STUDIO_G22_LEFT_P709 */
SDL_DEFINE_COLORSPACE(SDL_COLOR_TYPE_YCBCR,
SDL_COLOR_RANGE_LIMITED,
@@ -600,6 +609,7 @@ typedef enum
SDL_TRANSFER_CHARACTERISTICS_BT709,
SDL_MATRIX_COEFFICIENTS_BT709,
SDL_CHROMA_LOCATION_LEFT),
SDL_COLORSPACE_BT709_FULL = /**< Equivalent to DXGI_COLOR_SPACE_YCBCR_STUDIO_G22_LEFT_P709 */
SDL_DEFINE_COLORSPACE(SDL_COLOR_TYPE_YCBCR,
SDL_COLOR_RANGE_FULL,