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Small stack allocations fall back to malloc if they're unexpectedly large.

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This commit is contained in:
Ryan C. Gordon
2018-10-22 20:50:32 -04:00
parent eedf2c965d
commit b262b0ebc9
19 changed files with 84 additions and 52 deletions
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5
src/video/windows/SDL_windowsframebuffer.c
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@@ -27,6 +27,7 @@
int WIN_CreateWindowFramebuffer(_THIS, SDL_Window * window, Uint32 * format, void ** pixels, int *pitch)
{
SDL_WindowData *data = (SDL_WindowData *) window->driverdata;
SDL_bool isstack;
size_t size;
LPBITMAPINFO info;
HBITMAP hbm;
@@ -41,7 +42,7 @@ int WIN_CreateWindowFramebuffer(_THIS, SDL_Window * window, Uint32 * format, voi
/* Find out the format of the screen */
size = sizeof(BITMAPINFOHEADER) + 256 * sizeof (RGBQUAD);
info = (LPBITMAPINFO)SDL_stack_alloc(Uint8, size);
info = (LPBITMAPINFO)SDL_small_alloc(Uint8, size, &isstack);
if (!info) {
return SDL_OutOfMemory();
}
@@ -85,7 +86,7 @@ int WIN_CreateWindowFramebuffer(_THIS, SDL_Window * window, Uint32 * format, voi
data->mdc = CreateCompatibleDC(data->hdc);
data->hbm = CreateDIBSection(data->hdc, info, DIB_RGB_COLORS, pixels, NULL, 0);
SDL_stack_free(info);
SDL_small_free(info, isstack);
if (!data->hbm) {
return WIN_SetError("Unable to create DIB");