fdo-mirrors/mesa
1
0
Fork 0
mirror of https://gitlab.freedesktop.org/mesa/mesa.git synced 2026-05-05 11:48:06 +02:00
Code Issues Projects Releases Packages Wiki Activity Actions 2

allow specifying image size on cmd line

Browse source
This commit is contained in:
Brian Paul 2006-10-14 23:24:45 +00:00
parent 9cbe0e24ac
commit 07fd19f572
1 changed files with 26 additions and 19 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

45
progs/osdemos/osdemo.c
View file

@ -4,7 +4,7 @@
* See Mesa/include/GL/osmesa.h for documentation of the OSMesa functions.
*
* If you want to render BIG images you'll probably have to increase
* MAX_WIDTH and MAX_HEIGHT in src/config.h.
* MAX_WIDTH and MAX_Height in src/config.h.
*
* This program is in the public domain.
*
@ -27,8 +27,8 @@
#define SAVE_TARGA
#define WIDTH 400
#define HEIGHT 400
static int Width = 400;
static int Height = 400;
static void
@ -175,10 +175,10 @@ write_targa(const char *filename, const GLubyte *buffer, int width, int height)
fputc (0x00, f);
fputc (0x00, f); /* Y-origin of Image */
fputc (0x00, f);
fputc (WIDTH & 0xff, f); /* Image Width */
fputc ((WIDTH>>8) & 0xff, f);
fputc (HEIGHT & 0xff, f); /* Image Height */
fputc ((HEIGHT>>8) & 0xff, f);
fputc (Width & 0xff, f); /* Image Width */
fputc ((Width>>8) & 0xff, f);
fputc (Height & 0xff, f); /* Image Height */
fputc ((Height>>8) & 0xff, f);
fputc (0x18, f); /* Pixel Depth, 0x18 => 24 Bits */
fputc (0x20, f); /* Image Descriptor */
fclose(f);
@ -248,36 +248,43 @@ write_ppm(const char *filename, const GLubyte *buffer, int width, int height)
int
main(int argc, char *argv[])
{
OSMesaContext ctx;
void *buffer;
int i;
char *filename = NULL;
if (argc < 2) {
fprintf(stderr, "Usage:\n");
fprintf(stderr, " osdemo filename [width height]\n");
return 0;
}
filename = argv[1];
if (argc == 4) {
Width = atoi(argv[2]);
Height = atoi(argv[3]);
}
/* Create an RGBA-mode context */
#if OSMESA_MAJOR_VERSION * 100 + OSMESA_MINOR_VERSION >= 305
/* specify Z, stencil, accum sizes */
OSMesaContext ctx = OSMesaCreateContextExt( OSMESA_RGBA, 16, 0, 0, NULL );
ctx = OSMesaCreateContextExt( OSMESA_RGBA, 16, 0, 0, NULL );
#else
OSMesaContext ctx = OSMesaCreateContext( OSMESA_RGBA, NULL );
ctx = OSMesaCreateContext( OSMESA_RGBA, NULL );
#endif
if (!ctx) {
printf("OSMesaCreateContext failed!\n");
return 0;
}
for (i = 1; i < argc; i++) {
if (argv[i][0] != '-')
filename = argv[i];
}
/* Allocate the image buffer */
buffer = malloc( WIDTH * HEIGHT * 4 * sizeof(GLubyte) );
buffer = malloc( Width * Height * 4 * sizeof(GLubyte) );
if (!buffer) {
printf("Alloc image buffer failed!\n");
return 0;
}
/* Bind the buffer to the context and make it current */
if (!OSMesaMakeCurrent( ctx, buffer, GL_UNSIGNED_BYTE, WIDTH, HEIGHT )) {
if (!OSMesaMakeCurrent( ctx, buffer, GL_UNSIGNED_BYTE, Width, Height )) {
printf("OSMesaMakeCurrent failed!\n");
return 0;
}
@ -295,9 +302,9 @@ main(int argc, char *argv[])
if (filename != NULL) {
#ifdef SAVE_TARGA
write_targa(filename, buffer, WIDTH, HEIGHT);
write_targa(filename, buffer, Width, Height);
#else
write_ppm(filename, buffer, WIDTH, HEIGHT);
write_ppm(filename, buffer, Width, Height);
#endif
}
else {