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start using program cache

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This commit is contained in:
Brian 2007-10-30 12:24:27 -06:00
parent df174bdb81
commit 8aa42546ad
1 changed files with 70 additions and 5 deletions
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75
src/mesa/state_tracker/st_atom_pixeltransfer.c
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@ -44,6 +44,60 @@
#include "st_context.h"
struct state_key
{
GLuint scaleAndBias:1;
GLuint colorMatrix:1;
#if 0
GLfloat Maps[3][256][4];
int NumMaps;
GLint NumStages;
pipeline_stage Stages[STAGE_MAX];
GLboolean StagesUsed[STAGE_MAX];
GLfloat Scale1[4], Bias1[4];
GLfloat Scale2[4], Bias2[4];
#endif
};
static GLboolean
is_identity(const GLfloat m[16])
{
GLuint i;
for (i = 0; i < 16; i++) {
const int row = i % 4, col = i / 4;
const float val = (row == col);
if (m[i] != val)
return GL_FALSE;
}
return GL_TRUE;
}
static void
make_state_key(GLcontext *ctx, struct state_key *key)
{
/*GLuint i, j;*/
memset(key, 0, sizeof(*key));
if (ctx->Pixel.RedBias != 0.0 || ctx->Pixel.RedScale != 1.0 ||
ctx->Pixel.GreenBias != 0.0 || ctx->Pixel.GreenScale != 1.0 ||
ctx->Pixel.BlueBias != 0.0 || ctx->Pixel.BlueScale != 1.0 ||
ctx->Pixel.AlphaBias != 0.0 || ctx->Pixel.AlphaScale != 1.0) {
key->scaleAndBias = 1;
}
if (!is_identity(ctx->ColorMatrixStack.Top->m)) {
key->colorMatrix = 1;
}
}
#define MAX_INST 100
/**
@ -142,13 +196,24 @@ get_pixel_transfer_program(GLcontext *ctx)
static void
update_pixel_transfer(struct st_context *st)
{
/* XXX temporary - implement a program cache */
GLcontext *ctx = st->ctx;
if (st->pixel_transfer_program) {
ctx->Driver.DeleteProgram(ctx, &st->pixel_transfer_program->Base);
struct state_key key;
struct gl_fragment_program *fp;
make_state_key(st->ctx, &key);
fp = (struct gl_fragment_program *)
_mesa_search_program_cache(st->pixel_transfer_cache, &key, sizeof(key));
if (!fp) {
printf("Cached program not found\n");
fp = get_pixel_transfer_program(st->ctx);
_mesa_program_cache_insert(st->ctx, st->pixel_transfer_cache,
&key, sizeof(key), &fp->Base);
}
else {
printf("Use cached program\n");
}
st->pixel_transfer_program = get_pixel_transfer_program(ctx);
st->pixel_transfer_program = fp;
}