mirror of https://github.com/encounter/SDL.git
test: Add test coverage for surface size overflows
Signed-off-by: Simon McVittie <smcv@collabora.com>
This commit is contained in:
Simon McVittie
Sam Lantinga
parent
507ce36d80
commit
e974985998
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@ -593,6 +593,177 @@ surface_testBlitBlendLoop(void *arg) {
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}
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int
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surface_testOverflow(void *arg)
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{
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char buf[1024];
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const char *expectedError;
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SDL_Surface *surface;
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SDL_memset(buf, '\0', sizeof(buf));
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expectedError = "Parameter 'width' is invalid";
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surface = SDL_CreateRGBSurfaceWithFormat(0, -3, 100, 8, SDL_PIXELFORMAT_INDEX8);
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SDLTest_AssertCheck(surface == NULL, "Should detect negative width");
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SDLTest_AssertCheck(SDL_strcmp(SDL_GetError(), expectedError) == 0,
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"Expected \"%s\", got \"%s\"", expectedError, SDL_GetError());
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surface = SDL_CreateRGBSurfaceWithFormatFrom(buf, -1, 1, 8, 4, SDL_PIXELFORMAT_INDEX8);
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SDLTest_AssertCheck(surface == NULL, "Should detect negative width");
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SDLTest_AssertCheck(SDL_strcmp(SDL_GetError(), expectedError) == 0,
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"Expected \"%s\", got \"%s\"", expectedError, SDL_GetError());
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surface = SDL_CreateRGBSurfaceFrom(buf, -1, 1, 32, 4, 0xFF000000, 0x00FF0000, 0x0000FF00, 0x000000FF);
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SDLTest_AssertCheck(surface == NULL, "Should detect negative width");
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SDLTest_AssertCheck(SDL_strcmp(SDL_GetError(), expectedError) == 0,
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"Expected \"%s\", got \"%s\"", expectedError, SDL_GetError());
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expectedError = "Parameter 'height' is invalid";
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surface = SDL_CreateRGBSurfaceWithFormat(0, 100, -3, 8, SDL_PIXELFORMAT_INDEX8);
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SDLTest_AssertCheck(surface == NULL, "Should detect negative height");
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SDLTest_AssertCheck(SDL_strcmp(SDL_GetError(), expectedError) == 0,
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"Expected \"%s\", got \"%s\"", expectedError, SDL_GetError());
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surface = SDL_CreateRGBSurfaceWithFormatFrom(buf, 1, -1, 8, 4, SDL_PIXELFORMAT_INDEX8);
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SDLTest_AssertCheck(surface == NULL, "Should detect negative height");
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SDLTest_AssertCheck(SDL_strcmp(SDL_GetError(), expectedError) == 0,
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"Expected \"%s\", got \"%s\"", expectedError, SDL_GetError());
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surface = SDL_CreateRGBSurfaceFrom(buf, 1, -1, 32, 4, 0xFF000000, 0x00FF0000, 0x0000FF00, 0x000000FF);
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SDLTest_AssertCheck(surface == NULL, "Should detect negative height");
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SDLTest_AssertCheck(SDL_strcmp(SDL_GetError(), expectedError) == 0,
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"Expected \"%s\", got \"%s\"", expectedError, SDL_GetError());
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expectedError = "Parameter 'pitch' is invalid";
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surface = SDL_CreateRGBSurfaceWithFormatFrom(buf, 4, 1, 8, -1, SDL_PIXELFORMAT_INDEX8);
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SDLTest_AssertCheck(surface == NULL, "Should detect negative pitch");
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SDLTest_AssertCheck(SDL_strcmp(SDL_GetError(), expectedError) == 0,
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"Expected \"%s\", got \"%s\"", expectedError, SDL_GetError());
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surface = SDL_CreateRGBSurfaceFrom(buf, 1, 1, 32, -1, 0xFF000000, 0x00FF0000, 0x0000FF00, 0x000000FF);
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SDLTest_AssertCheck(surface == NULL, "Should detect negative pitch");
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SDLTest_AssertCheck(SDL_strcmp(SDL_GetError(), expectedError) == 0,
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"Expected \"%s\", got \"%s\"", expectedError, SDL_GetError());
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/* Less than 1 byte per pixel: the pitch can legitimately be less than
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* the width, but it must be enough to hold the appropriate number of
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* bits per pixel. SDL_PIXELFORMAT_INDEX4* needs 1 byte per 2 pixels. */
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surface = SDL_CreateRGBSurfaceWithFormatFrom(buf, 6, 1, 4, 3, SDL_PIXELFORMAT_INDEX4LSB);
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SDLTest_AssertCheck(surface != NULL, "6px * 4 bits per px fits in 3 bytes: %s",
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surface != NULL ? "(success)" : SDL_GetError());
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SDL_FreeSurface(surface);
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surface = SDL_CreateRGBSurfaceFrom(buf, 6, 1, 4, 3, 0, 0, 0, 0);
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SDLTest_AssertCheck(surface != NULL, "6px * 4 bits per px fits in 3 bytes: %s",
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surface != NULL ? "(success)" : SDL_GetError());
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SDL_FreeSurface(surface);
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surface = SDL_CreateRGBSurfaceWithFormatFrom(buf, 7, 1, 4, 3, SDL_PIXELFORMAT_INDEX4LSB);
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SDLTest_AssertCheck(surface == NULL, "Should detect pitch < width * bpp");
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SDLTest_AssertCheck(SDL_strcmp(SDL_GetError(), expectedError) == 0,
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"Expected \"%s\", got \"%s\"", expectedError, SDL_GetError());
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surface = SDL_CreateRGBSurfaceFrom(buf, 7, 1, 4, 3, 0, 0, 0, 0);
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SDLTest_AssertCheck(surface == NULL, "Should detect pitch < width * bpp");
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SDLTest_AssertCheck(SDL_strcmp(SDL_GetError(), expectedError) == 0,
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"Expected \"%s\", got \"%s\"", expectedError, SDL_GetError());
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surface = SDL_CreateRGBSurfaceWithFormatFrom(buf, 7, 1, 4, 4, SDL_PIXELFORMAT_INDEX4LSB);
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SDLTest_AssertCheck(surface != NULL, "7px * 4 bits per px fits in 4 bytes: %s",
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surface != NULL ? "(success)" : SDL_GetError());
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SDL_FreeSurface(surface);
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surface = SDL_CreateRGBSurfaceFrom(buf, 7, 1, 4, 4, 0, 0, 0, 0);
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SDLTest_AssertCheck(surface != NULL, "7px * 4 bits per px fits in 4 bytes: %s",
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surface != NULL ? "(success)" : SDL_GetError());
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SDL_FreeSurface(surface);
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/* SDL_PIXELFORMAT_INDEX1* needs 1 byte per 8 pixels. */
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surface = SDL_CreateRGBSurfaceWithFormatFrom(buf, 16, 1, 1, 2, SDL_PIXELFORMAT_INDEX1LSB);
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SDLTest_AssertCheck(surface != NULL, "16px * 1 bit per px fits in 2 bytes: %s",
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surface != NULL ? "(success)" : SDL_GetError());
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SDL_FreeSurface(surface);
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surface = SDL_CreateRGBSurfaceFrom(buf, 16, 1, 1, 2, 0, 0, 0, 0);
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SDLTest_AssertCheck(surface != NULL, "16px * 1 bit per px fits in 2 bytes: %s",
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surface != NULL ? "(success)" : SDL_GetError());
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SDL_FreeSurface(surface);
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surface = SDL_CreateRGBSurfaceWithFormatFrom(buf, 17, 1, 1, 2, SDL_PIXELFORMAT_INDEX1LSB);
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SDLTest_AssertCheck(surface == NULL, "Should detect pitch < width * bpp");
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SDLTest_AssertCheck(SDL_strcmp(SDL_GetError(), expectedError) == 0,
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"Expected \"%s\", got \"%s\"", expectedError, SDL_GetError());
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surface = SDL_CreateRGBSurfaceFrom(buf, 17, 1, 1, 2, 0, 0, 0, 0);
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SDLTest_AssertCheck(surface == NULL, "Should detect pitch < width * bpp");
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SDLTest_AssertCheck(SDL_strcmp(SDL_GetError(), expectedError) == 0,
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"Expected \"%s\", got \"%s\"", expectedError, SDL_GetError());
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surface = SDL_CreateRGBSurfaceWithFormatFrom(buf, 17, 1, 1, 3, SDL_PIXELFORMAT_INDEX1LSB);
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SDLTest_AssertCheck(surface != NULL, "17px * 1 bit per px fits in 3 bytes: %s",
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surface != NULL ? "(success)" : SDL_GetError());
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SDL_FreeSurface(surface);
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surface = SDL_CreateRGBSurfaceFrom(buf, 7, 1, 1, 3, 0, 0, 0, 0);
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SDLTest_AssertCheck(surface != NULL, "17px * 1 bit per px fits in 3 bytes: %s",
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surface != NULL ? "(success)" : SDL_GetError());
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SDL_FreeSurface(surface);
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/* SDL_PIXELFORMAT_INDEX8 and SDL_PIXELFORMAT_RGB332 require 1 byte per pixel. */
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surface = SDL_CreateRGBSurfaceWithFormatFrom(buf, 5, 1, 8, 5, SDL_PIXELFORMAT_RGB332);
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SDLTest_AssertCheck(surface != NULL, "5px * 8 bits per px fits in 5 bytes: %s",
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surface != NULL ? "(success)" : SDL_GetError());
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SDL_FreeSurface(surface);
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surface = SDL_CreateRGBSurfaceFrom(buf, 5, 1, 8, 5, 0, 0, 0, 0);
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SDLTest_AssertCheck(surface != NULL, "5px * 8 bits per px fits in 5 bytes: %s",
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surface != NULL ? "(success)" : SDL_GetError());
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SDL_FreeSurface(surface);
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surface = SDL_CreateRGBSurfaceWithFormatFrom(buf, 6, 1, 8, 5, SDL_PIXELFORMAT_RGB332);
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SDLTest_AssertCheck(surface == NULL, "Should detect pitch < width * bpp");
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SDLTest_AssertCheck(SDL_strcmp(SDL_GetError(), expectedError) == 0,
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"Expected \"%s\", got \"%s\"", expectedError, SDL_GetError());
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surface = SDL_CreateRGBSurfaceFrom(buf, 6, 1, 8, 5, 0, 0, 0, 0);
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SDLTest_AssertCheck(surface == NULL, "Should detect pitch < width * bpp");
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SDLTest_AssertCheck(SDL_strcmp(SDL_GetError(), expectedError) == 0,
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"Expected \"%s\", got \"%s\"", expectedError, SDL_GetError());
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/* Everything else requires more than 1 byte per pixel, and rounds up
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* each pixel to an integer number of bytes (e.g. RGB555 is really
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* XRGB1555, with 1 bit per pixel wasted). */
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surface = SDL_CreateRGBSurfaceWithFormatFrom(buf, 3, 1, 15, 6, SDL_PIXELFORMAT_RGB555);
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SDLTest_AssertCheck(surface != NULL, "3px * 15 (really 16) bits per px fits in 6 bytes: %s",
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surface != NULL ? "(success)" : SDL_GetError());
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SDL_FreeSurface(surface);
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surface = SDL_CreateRGBSurfaceFrom(buf, 3, 1, 15, 6, 0, 0, 0, 0);
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SDLTest_AssertCheck(surface != NULL, "5px * 15 (really 16) bits per px fits in 6 bytes: %s",
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surface != NULL ? "(success)" : SDL_GetError());
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SDL_FreeSurface(surface);
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surface = SDL_CreateRGBSurfaceWithFormatFrom(buf, 4, 1, 15, 6, SDL_PIXELFORMAT_RGB555);
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SDLTest_AssertCheck(surface == NULL, "4px * 15 (really 16) bits per px doesn't fit in 6 bytes");
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SDLTest_AssertCheck(SDL_strcmp(SDL_GetError(), expectedError) == 0,
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"Expected \"%s\", got \"%s\"", expectedError, SDL_GetError());
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surface = SDL_CreateRGBSurfaceFrom(buf, 4, 1, 15, 6, 0, 0, 0, 0);
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SDLTest_AssertCheck(surface == NULL, "4px * 15 (really 16) bits per px doesn't fit in 6 bytes");
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SDLTest_AssertCheck(SDL_strcmp(SDL_GetError(), expectedError) == 0,
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"Expected \"%s\", got \"%s\"", expectedError, SDL_GetError());
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if (sizeof (size_t) == 4 && sizeof (int) >= 4) {
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expectedError = "Out of memory";
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surface = SDL_CreateRGBSurfaceWithFormat(0, SDL_MAX_SINT32, 1, 8, SDL_PIXELFORMAT_INDEX8);
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SDLTest_AssertCheck(surface == NULL, "Should detect overflow in width + alignment");
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SDLTest_AssertCheck(SDL_strcmp(SDL_GetError(), expectedError) == 0,
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"Expected \"%s\", got \"%s\"", expectedError, SDL_GetError());
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surface = SDL_CreateRGBSurfaceWithFormat(0, SDL_MAX_SINT32 / 2, 1, 32, SDL_PIXELFORMAT_ARGB8888);
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SDLTest_AssertCheck(surface == NULL, "Should detect overflow in width * bytes per pixel");
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SDLTest_AssertCheck(SDL_strcmp(SDL_GetError(), expectedError) == 0,
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"Expected \"%s\", got \"%s\"", expectedError, SDL_GetError());
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surface = SDL_CreateRGBSurfaceWithFormat(0, (1 << 29) - 1, (1 << 29) - 1, 8, SDL_PIXELFORMAT_INDEX8);
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SDLTest_AssertCheck(surface == NULL, "Should detect overflow in width * height");
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SDLTest_AssertCheck(SDL_strcmp(SDL_GetError(), expectedError) == 0,
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"Expected \"%s\", got \"%s\"", expectedError, SDL_GetError());
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surface = SDL_CreateRGBSurfaceWithFormat(0, (1 << 15) + 1, (1 << 15) + 1, 32, SDL_PIXELFORMAT_ARGB8888);
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SDLTest_AssertCheck(surface == NULL, "Should detect overflow in width * height * bytes per pixel");
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SDLTest_AssertCheck(SDL_strcmp(SDL_GetError(), expectedError) == 0,
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"Expected \"%s\", got \"%s\"", expectedError, SDL_GetError());
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}
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else {
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SDLTest_Log("Can't easily overflow size_t on this platform");
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}
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return TEST_COMPLETED;
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}
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/* ================= Test References ================== */
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/* Surface test cases */
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@ -635,11 +806,14 @@ static const SDLTest_TestCaseReference surfaceTest11 =
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static const SDLTest_TestCaseReference surfaceTest12 =
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{ (SDLTest_TestCaseFp)surface_testBlitBlendMod, "surface_testBlitBlendMod", "Tests blitting routines with mod blending mode.", TEST_ENABLED};
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static const SDLTest_TestCaseReference surfaceTestOverflow =
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{ surface_testOverflow, "surface_testOverflow", "Test overflow detection.", TEST_ENABLED};
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/* Sequence of Surface test cases */
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static const SDLTest_TestCaseReference *surfaceTests[] = {
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&surfaceTest1, &surfaceTest2, &surfaceTest3, &surfaceTest4, &surfaceTest5,
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&surfaceTest6, &surfaceTest7, &surfaceTest8, &surfaceTest9, &surfaceTest10,
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&surfaceTest11, &surfaceTest12, NULL
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&surfaceTest11, &surfaceTest12, &surfaceTestOverflow, NULL
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};
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/* Surface test suite (global) */
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