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Add input validation to SDL_CalculateGammaRamp; add test coverage to Pixels suite; update test cases in Pixels suite

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This commit is contained in:
Andreas Schiffler 2013-05-05 11:17:40 -07:00
parent 4f70701db1
commit 4ec8d70ca1
2 changed files with 169 additions and 6 deletions
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12
src/video/SDL_pixels.c
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@ -1090,9 +1090,19 @@ void
SDL_CalculateGammaRamp(float gamma, Uint16 * ramp)
{
int i;
/* Input validation */
if (gamma < 0.0f ) {
SDL_InvalidParamError("gamma");
return;
}
if (ramp == NULL) {
SDL_InvalidParamError("ramp");
return;
}
/* 0.0 gamma is all black */
if (gamma <= 0.0f) {
if (gamma == 0.0f) {
for (i = 0; i < 256; ++i) {
ramp[i] = 0;
}