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set texcoords depending on GLX_Y_INVERTED_EXT

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Brian
2007-05-21 20:57:09 -06:00
parent a10ba38df7
commit b4f8d4455b
1 changed files with 7 additions and 5 deletions
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progs/xdemos/texture_from_pixmap.c
+7 -5
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@@ -41,6 +41,9 @@
#include <unistd.h>
static float top, bottom;
static Display *
OpenDisplay(void)
{
@@ -71,7 +74,6 @@ ChoosePixmapFBConfig(Display *display)
int screen = DefaultScreen(display);
GLXFBConfig *fbconfigs;
int i, nfbconfigs, value;
float top, bottom;
fbconfigs = glXGetFBConfigs(display, screen, &nfbconfigs);
for (i = 0; i < nfbconfigs; i++) {
@@ -273,13 +275,13 @@ Redraw(Display *dpy, Window win, float rot)
glRotatef(2.0 * rot, 1, 0, 0);
glBegin(GL_QUADS);
glTexCoord2d(0.0, 0.0);
glTexCoord2d(0.0, bottom);
glVertex2f(-1, -1);
glTexCoord2d(1.0, 0.0);
glTexCoord2d(1.0, bottom);
glVertex2f( 1, -1);
glTexCoord2d(1.0, 1.0);
glTexCoord2d(1.0, top);
glVertex2d(1.0, 1.0);
glTexCoord2d(0.0, 1.0);
glTexCoord2d(0.0, top);
glVertex2f(-1.0, 1.0);
glEnd();