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authorBrian Paul <brianp@vmware.com>2010-03-10 14:35:57 -0700
committerBrian Paul <brianp@vmware.com>2010-03-10 14:37:05 -0700
commitc7be039fad6d93911d1142fc5dea18d0c2684143 (patch)
treefba4c39192cf23223dd2fc560a2ec4307330774e /progs
parentd5ccbea63cb9ba96cd4c0e2f40824ec1939c806c (diff)
progs/trivial: use -c option to use glCopyPixels()
Otherwise we use glRead/DrawPixels to copy the off-screen FBO image into the window. Looks like NVIDIA's broken when using -c (the image is upside down), but OK with -c -t.
Diffstat (limited to 'progs')
-rw-r--r--progs/trivial/clear-fbo-scissor.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/progs/trivial/clear-fbo-scissor.c b/progs/trivial/clear-fbo-scissor.c
index 28c613ccfba..6a605e16a8b 100644
--- a/progs/trivial/clear-fbo-scissor.c
+++ b/progs/trivial/clear-fbo-scissor.c
@@ -17,6 +17,7 @@
static int Width = 512, Height = 512;
static GLuint MyFB, MyRB;
static GLboolean UseTex = GL_FALSE;
+static GLboolean UseCopyPix = GL_FALSE;
#define CheckError() \
@@ -110,7 +111,6 @@ static void
Draw(void)
{
GLboolean scissor = GL_TRUE;
- GLboolean copyPix = GL_FALSE;
/* draw to user framebuffer */
glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, MyFB);
@@ -171,7 +171,7 @@ Draw(void)
glBindFramebufferEXT(GL_DRAW_FRAMEBUFFER_EXT, 0);
glDrawBuffer(GL_BACK);
- if (copyPix) {
+ if (UseCopyPix) {
glWindowPos2i(0, 0);
glCopyPixels(0, 0, Width, Height, GL_COLOR);
}
@@ -211,6 +211,8 @@ main(int argc, char *argv[])
for (i = 1; i < argc; i++) {
if (strcmp(argv[i], "-t") == 0)
UseTex = GL_TRUE;
+ else if (strcmp(argv[i], "-c") == 0)
+ UseCopyPix = GL_TRUE;
}
if (UseTex)