diff options
Diffstat (limited to 'progs')
| -rw-r--r-- | progs/demos/osdemo.c | 27 |
1 files changed, 25 insertions, 2 deletions
diff --git a/progs/demos/osdemo.c b/progs/demos/osdemo.c index 7411d4ad4e0..acb9d3ab01d 100644 --- a/progs/demos/osdemo.c +++ b/progs/demos/osdemo.c @@ -1,4 +1,4 @@ -/* $Id: osdemo.c,v 1.4 2000/03/28 16:59:39 rjfrank Exp $ */ +/* $Id: osdemo.c,v 1.5 2000/09/08 16:42:06 brianp Exp $ */ /* * Demo of off-screen Mesa rendering @@ -223,15 +223,38 @@ write_ppm(const char *filename, const GLubyte *buffer, int width, int height) int main( int argc, char *argv[] ) { + void *buffer; + /* Create an RGBA-mode context */ +#if OSMESA_MAJOR_VERSION * 100 + OSMESA_MINOR_VERSION >= 305 + /* specify Z, stencil, accum sizes */ + OSMesaContext ctx = OSMesaCreateContextExt( GL_RGBA, 16, 0, 0, NULL ); +#else OSMesaContext ctx = OSMesaCreateContext( GL_RGBA, NULL ); +#endif + if (!ctx) { + printf("OSMesaCreateContext failed!\n"); + return 0; + } /* Allocate the image buffer */ - void *buffer = malloc( WIDTH * HEIGHT * 4 ); + buffer = malloc( WIDTH * HEIGHT * 4 ); + if (!buffer) { + printf("Alloc image buffer failed!\n"); + return 0; + } /* Bind the buffer to the context and make it current */ OSMesaMakeCurrent( ctx, buffer, GL_UNSIGNED_BYTE, WIDTH, HEIGHT ); + { + int z, s, a; + glGetIntegerv(GL_DEPTH_BITS, &z); + glGetIntegerv(GL_STENCIL_BITS, &s); + glGetIntegerv(GL_ACCUM_RED_BITS, &a); + printf("%d %d %d\n", z, s, a); + } + render_image(); if (argc>1) { |