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test glBlitFramebufferEXT w/ -blit flag

This commit is contained in:
Brian Paul 2006-03-02 03:54:14 +00:00
parent 14d3ab9662
commit 81b8aa9ecd
1 changed files with 33 additions and 2 deletions
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35
progs/tests/copypixrate.c
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@ -17,6 +17,9 @@ static GLint ImgWidth, ImgHeight;
static GLenum Buffer = GL_FRONT;
static GLenum AlphaTest = GL_FALSE;
static GLboolean UseBlit = GL_FALSE;
static PFNGLBLITFRAMEBUFFEREXTPROC glBlitFramebufferEXT_func = NULL;
/**
@ -98,8 +101,19 @@ RunTest(void)
y = Rand(WinHeight);
if (x > ImgWidth || y > ImgHeight) {
glWindowPos2iARB(x, y);
glCopyPixels(0, 0, ImgWidth, ImgHeight, GL_COLOR);
#ifdef GL_EXT_framebuffer_blit
if (UseBlit)
{
glBlitFramebufferEXT_func(0, 0, ImgWidth, ImgHeight,
x, y, x + ImgWidth, y + ImgHeight,
GL_COLOR_BUFFER_BIT, GL_LINEAR);
}
else
#endif
{
glWindowPos2iARB(x, y);
glCopyPixels(0, 0, ImgWidth, ImgHeight, GL_COLOR);
}
glFinish(); /* XXX OK? */
iters++;
@ -197,6 +211,22 @@ ParseArgs(int argc, char *argv[])
Buffer = GL_BACK;
else if (strcmp(argv[i], "-alpha") == 0)
AlphaTest = GL_TRUE;
else if (strcmp(argv[i], "-blit") == 0)
UseBlit = GL_TRUE;
}
}
static void
Init(void)
{
if (glutExtensionSupported("GL_EXT_framebuffer_blit")) {
glBlitFramebufferEXT_func = (PFNGLBLITFRAMEBUFFEREXTPROC)
glutGetProcAddress("glBlitFramebufferEXT");
}
else if (UseBlit) {
printf("Warning: GL_EXT_framebuffer_blit not supported.\n");
UseBlit = GL_FALSE;
}
}
@ -222,6 +252,7 @@ main(int argc, char *argv[])
printf("GL_RENDERER: %s\n", (char *) glGetString(GL_RENDERER));
printf("Draw Buffer: %s\n", (Buffer == GL_BACK) ? "Back" : "Front");
Init();
glutMainLoop();
return 0;