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st/mesa: translate fragment shaders into TGSI when we get them

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Reviewed-by: Dave Airlie <airlied@redhat.com>
Reviewed-by: Brian Paul <brianp@vmware.com>
Tested-by: Brian Paul <brianp@vmware.com>
This commit is contained in:
Marek Olšák
2015-10-05 03:26:48 +02:00
parent 46021ace51
commit a907b5dd16
4 changed files with 55 additions and 37 deletions
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81
src/mesa/state_tracker/st_program.c
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@@ -114,8 +114,6 @@ delete_fp_variant(struct st_context *st, struct st_fp_variant *fpv)
cso_delete_fragment_shader(st->cso_context, fpv->driver_shader);
if (fpv->parameters)
_mesa_free_parameter_list(fpv->parameters);
if (fpv->tgsi.tokens)
ureg_free_tokens(fpv->tgsi.tokens);
free(fpv);
}
@@ -135,6 +133,11 @@ st_release_fp_variants(struct st_context *st, struct st_fragment_program *stfp)
}
stfp->variants = NULL;
if (stfp->tgsi.tokens) {
ureg_free_tokens(stfp->tgsi.tokens);
stfp->tgsi.tokens = NULL;
}
}
@@ -531,17 +534,12 @@ st_translate_interp(enum glsl_interp_qualifier glsl_qual, bool is_color)
/**
* Translate a Mesa fragment shader into a TGSI shader using extra info in
* the key.
* \return new fragment program variant
* Translate a Mesa fragment shader into a TGSI shader.
*/
static struct st_fp_variant *
bool
st_translate_fragment_program(struct st_context *st,
struct st_fragment_program *stfp,
const struct st_fp_variant_key *key)
struct st_fragment_program *stfp)
{
struct pipe_context *pipe = st->pipe;
struct st_fp_variant *variant = CALLOC_STRUCT(st_fp_variant);
GLuint outputMapping[FRAG_RESULT_MAX];
GLuint inputMapping[VARYING_SLOT_MAX];
GLuint inputSlotToAttr[VARYING_SLOT_MAX];
@@ -561,10 +559,6 @@ st_translate_fragment_program(struct st_context *st,
ubyte fs_output_semantic_index[PIPE_MAX_SHADER_OUTPUTS];
uint fs_num_outputs = 0;
if (!variant)
return NULL;
assert(!(key->bitmap && key->drawpixels));
memset(inputSlotToAttr, ~0, sizeof(inputSlotToAttr));
if (!stfp->glsl_to_tgsi)
@@ -772,10 +766,8 @@ st_translate_fragment_program(struct st_context *st,
}
ureg = ureg_create_with_screen(TGSI_PROCESSOR_FRAGMENT, st->pipe->screen);
if (ureg == NULL) {
free(variant);
return NULL;
}
if (ureg == NULL)
return false;
if (ST_DEBUG & DEBUG_MESA) {
_mesa_print_program(&stfp->Base.Base);
@@ -845,8 +837,26 @@ st_translate_fragment_program(struct st_context *st,
fs_output_semantic_name,
fs_output_semantic_index);
variant->tgsi.tokens = ureg_get_tokens(ureg, NULL);
stfp->tgsi.tokens = ureg_get_tokens(ureg, NULL);
ureg_destroy(ureg);
return stfp->tgsi.tokens != NULL;
}
static struct st_fp_variant *
st_create_fp_variant(struct st_context *st,
struct st_fragment_program *stfp,
const struct st_fp_variant_key *key)
{
struct pipe_context *pipe = st->pipe;
struct st_fp_variant *variant = CALLOC_STRUCT(st_fp_variant);
struct pipe_shader_state tgsi = {0};
if (!variant)
return NULL;
tgsi.tokens = stfp->tgsi.tokens;
assert(!(key->bitmap && key->drawpixels));
/* Emulate features. */
if (key->clamp_color || key->persample_shading) {
@@ -855,12 +865,11 @@ st_translate_fragment_program(struct st_context *st,
(key->clamp_color ? TGSI_EMU_CLAMP_COLOR_OUTPUTS : 0) |
(key->persample_shading ? TGSI_EMU_FORCE_PERSAMPLE_INTERP : 0);
tokens = tgsi_emulate(variant->tgsi.tokens, flags);
tokens = tgsi_emulate(tgsi.tokens, flags);
if (tokens) {
tgsi_free_tokens(variant->tgsi.tokens);
variant->tgsi.tokens = tokens;
} else
if (tokens)
tgsi.tokens = tokens;
else
fprintf(stderr, "mesa: cannot emulate deprecated features\n");
}
@@ -870,15 +879,16 @@ st_translate_fragment_program(struct st_context *st,
variant->bitmap_sampler = ffs(~stfp->Base.Base.SamplersUsed) - 1;
tokens = st_get_bitmap_shader(variant->tgsi.tokens,
tokens = st_get_bitmap_shader(tgsi.tokens,
variant->bitmap_sampler,
st->needs_texcoord_semantic,
st->bitmap.tex_format ==
PIPE_FORMAT_L8_UNORM);
if (tokens) {
tgsi_free_tokens(variant->tgsi.tokens);
variant->tgsi.tokens = tokens;
if (tgsi.tokens != stfp->tgsi.tokens)
tgsi_free_tokens(tgsi.tokens);
tgsi.tokens = tokens;
variant->parameters =
_mesa_clone_parameter_list(stfp->Base.Base.Parameters);
} else
@@ -923,7 +933,7 @@ st_translate_fragment_program(struct st_context *st,
state);
}
tokens = st_get_drawpix_shader(variant->tgsi.tokens,
tokens = st_get_drawpix_shader(tgsi.tokens,
st->needs_texcoord_semantic,
key->scaleAndBias, scale_const,
bias_const, key->pixelMaps,
@@ -932,24 +942,27 @@ st_translate_fragment_program(struct st_context *st,
texcoord_const);
if (tokens) {
tgsi_free_tokens(variant->tgsi.tokens);
variant->tgsi.tokens = tokens;
if (tgsi.tokens != stfp->tgsi.tokens)
tgsi_free_tokens(tgsi.tokens);
tgsi.tokens = tokens;
} else
fprintf(stderr, "mesa: cannot create a shader for glDrawPixels\n");
}
if (ST_DEBUG & DEBUG_TGSI) {
tgsi_dump(variant->tgsi.tokens, 0/*TGSI_DUMP_VERBOSE*/);
tgsi_dump(tgsi.tokens, 0);
debug_printf("\n");
}
/* fill in variant */
variant->driver_shader = pipe->create_fs_state(pipe, &variant->tgsi);
variant->driver_shader = pipe->create_fs_state(pipe, &tgsi);
variant->key = *key;
if (tgsi.tokens != stfp->tgsi.tokens)
tgsi_free_tokens(tgsi.tokens);
return variant;
}
/**
* Translate fragment program if needed.
*/
@@ -969,7 +982,7 @@ st_get_fp_variant(struct st_context *st,
if (!fpv) {
/* create new */
fpv = st_translate_fragment_program(st, stfp, key);
fpv = st_create_fp_variant(st, stfp, key);
if (fpv) {
/* insert into list */
fpv->next = stfp->variants;