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Fixed crash if the input data pitch is larger than the locked texture pitch

Sam Lantinga 2014-02-25 10:04:49 -08:00
parent b420ad0e01
commit 8db4c5a9d3
1 changed files with 6 additions and 0 deletions
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6
src/render/direct3d/SDL_render_d3d.c
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@ -1009,6 +1009,12 @@ D3D_UpdateTextureInternal(IDirect3DTexture9 *texture, Uint32 format, SDL_bool fu
if (length == pitch && length == locked.Pitch) { if (length == pitch && length == locked.Pitch) {
SDL_memcpy(dst, src, length*h); SDL_memcpy(dst, src, length*h);
} else { } else {
if (length > pitch) {
length = pitch;
}
if (length > locked.Pitch) {
length = locked.Pitch;
}
for (row = 0; row < h; ++row) { for (row = 0; row < h; ++row) {
SDL_memcpy(dst, src, length); SDL_memcpy(dst, src, length);
src += pitch; src += pitch;