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Added SDL_BlitSurface9Grid() and SDL_RenderTexture9Grid()

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Sam Lantinga 2024-07-20 16:39:09 -07:00
parent 9294476788
commit 6209c71f54
9 changed files with 583 additions and 0 deletions
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129
test/testautomation_surface.c
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@ -415,6 +415,130 @@ static int surface_testBlitTiled(void *arg)
return TEST_COMPLETED;
}
static const Uint8 COLOR_SEPARATION = 85;
static void Fill9GridReferenceSurface(SDL_Surface *surface, int corner_size)
{
SDL_Rect rect;
// Upper left
rect.x = 0;
rect.y = 0;
rect.w = corner_size;
rect.h = corner_size;
SDL_FillSurfaceRect(surface, &rect, SDL_MapSurfaceRGB(surface, 1 * COLOR_SEPARATION, 1 * COLOR_SEPARATION, 0));
// Top
rect.x = corner_size;
rect.y = 0;
rect.w = surface->w - 2 * corner_size;
rect.h = corner_size;
SDL_FillSurfaceRect(surface, &rect, SDL_MapSurfaceRGB(surface, 2 * COLOR_SEPARATION, 1 * COLOR_SEPARATION, 0));
// Upper right
rect.x = surface->w - corner_size;
rect.y = 0;
rect.w = corner_size;
rect.h = corner_size;
SDL_FillSurfaceRect(surface, &rect, SDL_MapSurfaceRGB(surface, 3 * COLOR_SEPARATION, 1 * COLOR_SEPARATION, 0));
// Left
rect.x = 0;
rect.y = corner_size;
rect.w = corner_size;
rect.h = surface->h - 2 * corner_size;
SDL_FillSurfaceRect(surface, &rect, SDL_MapSurfaceRGB(surface, 1 * COLOR_SEPARATION, 2 * COLOR_SEPARATION, 0));
// Center
rect.x = corner_size;
rect.y = corner_size;
rect.w = surface->w - 2 * corner_size;
rect.h = surface->h - 2 * corner_size;
SDL_FillSurfaceRect(surface, &rect, SDL_MapSurfaceRGB(surface, 2 * COLOR_SEPARATION, 2 * COLOR_SEPARATION, 0));
// Right
rect.x = surface->w - corner_size;
rect.y = corner_size;
rect.w = corner_size;
rect.h = surface->h - 2 * corner_size;
SDL_FillSurfaceRect(surface, &rect, SDL_MapSurfaceRGB(surface, 3 * COLOR_SEPARATION, 2 * COLOR_SEPARATION, 0));
// Lower left
rect.x = 0;
rect.y = surface->h - corner_size;
rect.w = corner_size;
rect.h = corner_size;
SDL_FillSurfaceRect(surface, &rect, SDL_MapSurfaceRGB(surface, 1 * COLOR_SEPARATION, 3 * COLOR_SEPARATION, 0));
// Bottom
rect.x = corner_size;
rect.y = surface->h - corner_size;
rect.w = surface->w - 2 * corner_size;
rect.h = corner_size;
SDL_FillSurfaceRect(surface, &rect, SDL_MapSurfaceRGB(surface, 2 * COLOR_SEPARATION, 3 * COLOR_SEPARATION, 0));
// Lower right
rect.x = surface->w - corner_size;
rect.y = surface->h - corner_size;
rect.w = corner_size;
rect.h = corner_size;
SDL_FillSurfaceRect(surface, &rect, SDL_MapSurfaceRGB(surface, 3 * COLOR_SEPARATION, 3 * COLOR_SEPARATION, 0));
}
/**
* Tests 9-grid blitting.
*/
static int surface_testBlit9Grid(void *arg)
{
SDL_Surface *source = NULL;
int x, y;
int ret = 0;
/* Create source surface */
source = SDL_CreateSurface(3, 3, SDL_PIXELFORMAT_RGBA32);
SDLTest_AssertCheck(source != NULL, "Verify source surface is not NULL");
for (y = 0; y < 3; ++y) {
for (x = 0; x < 3; ++x) {
SDL_WriteSurfacePixel(source, x, y, (Uint8)((1 + x) * COLOR_SEPARATION), (Uint8)((1 + y) * COLOR_SEPARATION), 0, 255);
}
}
/* 9-grid blit - 1.0 scale */
{
/* Create reference surface */
SDL_DestroySurface(referenceSurface);
referenceSurface = SDL_CreateSurface(testSurface->w, testSurface->h, testSurface->format);
SDLTest_AssertCheck(referenceSurface != NULL, "Verify reference surface is not NULL");
Fill9GridReferenceSurface(referenceSurface, 1);
ret = SDL_BlitSurface9Grid(source, NULL, 1, 0.0f, SDL_SCALEMODE_NEAREST, testSurface, NULL);
SDLTest_AssertCheck(ret == 0, "Validate result from SDL_BlitSurface9Grid, expected: 0, got: %i", ret);
ret = SDLTest_CompareSurfaces(testSurface, referenceSurface, 0);
SDLTest_AssertCheck(ret == 0, "Validate result from SDLTest_CompareSurfaces, expected: 0, got: %i", ret);
}
/* 9-grid blit - 2.0 scale */
{
/* Create reference surface */
SDL_DestroySurface(referenceSurface);
referenceSurface = SDL_CreateSurface(testSurface->w, testSurface->h, testSurface->format);
SDLTest_AssertCheck(referenceSurface != NULL, "Verify reference surface is not NULL");
Fill9GridReferenceSurface(referenceSurface, 2);
ret = SDL_BlitSurface9Grid(source, NULL, 1, 2.0f, SDL_SCALEMODE_NEAREST, testSurface, NULL);
SDLTest_AssertCheck(ret == 0, "Validate result from SDL_BlitSurface9Grid, expected: 0, got: %i", ret);
ret = SDLTest_CompareSurfaces(testSurface, referenceSurface, 0);
SDLTest_AssertCheck(ret == 0, "Validate result from SDLTest_CompareSurfaces, expected: 0, got: %i", ret);
}
/* Clean up. */
SDL_DestroySurface(source);
return TEST_COMPLETED;
}
/**
* Tests surface conversion.
*/
@ -1099,6 +1223,10 @@ static const SDLTest_TestCaseReference surfaceTestBlitTiled = {
(SDLTest_TestCaseFp)surface_testBlitTiled, "surface_testBlitTiled", "Tests tiled blitting.", TEST_ENABLED
};
static const SDLTest_TestCaseReference surfaceTestBlit9Grid = {
(SDLTest_TestCaseFp)surface_testBlit9Grid, "surface_testBlit9Grid", "Tests 9-grid blitting.", TEST_ENABLED
};
static const SDLTest_TestCaseReference surfaceTestLoadFailure = {
(SDLTest_TestCaseFp)surface_testLoadFailure, "surface_testLoadFailure", "Tests sprite loading. A failure case.", TEST_ENABLED
};
@ -1168,6 +1296,7 @@ static const SDLTest_TestCaseReference *surfaceTests[] = {
&surfaceTestSaveLoadBitmap,
&surfaceTestBlit,
&surfaceTestBlitTiled,
&surfaceTestBlit9Grid,
&surfaceTestLoadFailure,
&surfaceTestSurfaceConversion,
&surfaceTestCompleteSurfaceConversion,