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Added the concept of colorspace to the SDL renderer

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This allows color operations to happen in linear space between sRGB input and sRGB output. This is currently supported on the direct3d11, direct3d12 and opengl renderers.

This is a good resource on blending in linear space vs sRGB space:
https://blog.johnnovak.net/2016/09/21/what-every-coder-should-know-about-gamma/

Also added testcolorspace to verify colorspace changes
This commit is contained in:
Sam Lantinga
2024-01-29 18:32:27 -08:00
parent 554f0625d3
commit f257eb4481
9 changed files with 648 additions and 40 deletions
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test/CMakeLists.txt
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@@ -350,6 +350,7 @@ files2headers(gamepad_image_headers
files2headers(icon_bmp_header icon.bmp)
add_sdl_test_executable(testaudio MAIN_CALLBACKS NEEDS_RESOURCES TESTUTILS SOURCES testaudio.c)
add_sdl_test_executable(testcolorspace SOURCES testcolorspace.c)
add_sdl_test_executable(testfile NONINTERACTIVE SOURCES testfile.c)
add_sdl_test_executable(testcontroller TESTUTILS SOURCES testcontroller.c gamepadutils.c ${gamepad_image_headers})
add_sdl_test_executable(testgeometry TESTUTILS SOURCES testgeometry.c)