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testautomation: don't validate alpha values on XRGB formats

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The results are not defined, and some renderers set 0xFF always and other renderers set the alpha to blend results, even though it won't be used when rendering.

Fixes --filter render_testBlendModes with D3D renderers
This commit is contained in:
Sam Lantinga 2025-01-20 11:29:41 -08:00
parent c698c61f03
commit 759e01bd64
1 changed files with 6 additions and 1 deletions
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5
test/testautomation_render.c
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@ -897,7 +897,12 @@ static void testBlendModeOperation(TestRenderOperation op, int mode, SDL_PixelFo
deltaR = SDL_abs((int)actualR - expectedR); deltaR = SDL_abs((int)actualR - expectedR);
deltaG = SDL_abs((int)actualG - expectedG); deltaG = SDL_abs((int)actualG - expectedG);
deltaB = SDL_abs((int)actualB - expectedB); deltaB = SDL_abs((int)actualB - expectedB);
if (SDL_ISPIXELFORMAT_ALPHA(dst_format)) {
deltaA = SDL_abs((int)actualA - expectedA); deltaA = SDL_abs((int)actualA - expectedA);
} else {
// The alpha channel is ignored in non-alpha formats, so don't validate it
deltaA = 0;
}
SDLTest_AssertCheck( SDLTest_AssertCheck(
deltaR <= MAXIMUM_ERROR && deltaR <= MAXIMUM_ERROR &&
deltaG <= MAXIMUM_ERROR && deltaG <= MAXIMUM_ERROR &&