static void set_geometry_shader( void )
{
void *handle;
const char *text =
"GEOM\n"
"PROPERTY GS_INPUT_PRIMITIVE TRIANGLES\n"
"PROPERTY GS_OUTPUT_PRIMITIVE TRIANGLE_STRIP\n"
"DCL IN[][0], POSITION, CONSTANT\n"
"DCL IN[][1], COLOR, CONSTANT\n"
"DCL OUT[0], POSITION, CONSTANT\n"
"DCL OUT[1], COLOR, CONSTANT\n"
"0:MOV OUT[0], IN[0][0]\n"
"1:MOV OUT[1], IN[0][1]\n"
"2:EMIT\n"
"3:MOV OUT[0], IN[1][0]\n"
"4:MOV OUT[1], IN[0][1]\n" /* copy color from input vertex 0 */
"5:EMIT\n"
"6:MOV OUT[0], IN[2][0]\n"
"7:MOV OUT[1], IN[2][1]\n"
"8:EMIT\n"
"9:ENDPRIM\n"
"10:END\n";
handle = graw_parse_geometry_shader(ctx, text);
ctx->bind_gs_state(ctx, handle);
}
static void set_geometry_shader( void )
{
FILE *f;
char buf[50000];
void *handle;
int sz;
if ((f = fopen(filename, "r")) == NULL) {
fprintf(stderr, "Couldn't open %s\n", filename);
exit(1);
}
sz = fread(buf, 1, sizeof(buf), f);
if (!feof(f)) {
printf("file too long\n");
exit(1);
}
printf("%.*s\n", sz, buf);
buf[sz] = 0;
handle = graw_parse_geometry_shader(ctx, buf);
ctx->bind_gs_state(ctx, handle);
fclose(f);
}
