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i965: Fix a crash with wine by not allocating >1MB on the stack.

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This commit is contained in:
Eric Anholt
2006-12-09 22:35:07 -08:00
parent f79360858d
commit d7b24fec24
2 changed files with 31 additions and 19 deletions
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1
src/mesa/drivers/dri/i965/brw_context.h
View File

@@ -599,6 +599,7 @@ struct brw_context
struct {
struct brw_wm_prog_data *prog_data;
struct brw_wm_compile *compile_data;
/* Input sizes, calculated from active vertex program:
*/

49
src/mesa/drivers/dri/i965/brw_wm.c
View File

@@ -138,64 +138,75 @@ static void do_wm_prog( struct brw_context *brw,
struct brw_fragment_program *fp,
struct brw_wm_prog_key *key)
{
struct brw_wm_compile c;
struct brw_wm_compile *c;
const GLuint *program;
GLuint program_size;
memset(&c, 0, sizeof(c));
memcpy(&c.key, key, sizeof(*key));
c = brw->wm.compile_data;
if (c == NULL) {
brw->wm.compile_data = calloc(1, sizeof(*brw->wm.compile_data));
c = brw->wm.compile_data;
} else {
memset(c, 0, sizeof(*brw->wm.compile_data));
}
memcpy(&c->key, key, sizeof(*key));
c.fp = fp;
c.env_param = brw->intel.ctx.FragmentProgram.Parameters;
c->fp = fp;
c->env_param = brw->intel.ctx.FragmentProgram.Parameters;
/* Augment fragment program. Add instructions for pre- and
* post-fragment-program tasks such as interpolation and fogging.
*/
brw_wm_pass_fp(&c);
brw_wm_pass_fp(c);
/* Translate to intermediate representation. Build register usage
* chains.
*/
brw_wm_pass0(&c);
brw_wm_pass0(c);
/* Dead code removal.
*/
brw_wm_pass1(&c);
brw_wm_pass1(c);
/* Hal optimization
*/
brw_wm_pass_hal (&c);
brw_wm_pass_hal (c);
/* Register allocation.
*/
c.grf_limit = BRW_WM_MAX_GRF/2;
c->grf_limit = BRW_WM_MAX_GRF/2;
/* This is where we start emitting gen4 code:
*/
brw_init_compile(&c.func);
brw_init_compile(&c->func);
brw_wm_pass2(&c);
brw_wm_pass2(c);
c.prog_data.total_grf = c.max_wm_grf;
c.prog_data.total_scratch = c.last_scratch ? c.last_scratch + 0x40 : 0;
c->prog_data.total_grf = c->max_wm_grf;
if (c->last_scratch) {
c->prog_data.total_scratch =
c->last_scratch + 0x40;
} else {
c->prog_data.total_scratch = 0;
}
/* Emit GEN4 code.
*/
brw_wm_emit(&c);
brw_wm_emit(c);
/* get the program
*/
program = brw_get_program(&c.func, &program_size);
program = brw_get_program(&c->func, &program_size);
/*
*/
brw->wm.prog_gs_offset = brw_upload_cache( &brw->cache[BRW_WM_PROG],
&c.key,
sizeof(c.key),
&c->key,
sizeof(c->key),
program,
program_size,
&c.prog_data,
&c->prog_data,
&brw->wm.prog_data );
}