fdo-mirrors/mesa
1
0
Fork 0
mirror of https://gitlab.freedesktop.org/mesa/mesa.git synced 2025-12-30 12:10:09 +01:00
Code Issues Projects Releases Packages Wiki Activity Actions 1

progs/trivial: use -c option to use glCopyPixels()

Browse source 
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.
This commit is contained in:
Brian Paul 2010-03-10 14:35:57 -07:00
parent d5ccbea63c
commit c7be039fad
1 changed files with 4 additions and 2 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

6
progs/trivial/clear-fbo-scissor.c
View file

@ -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)