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Diffstat (limited to 'src/mesa/state_tracker/st_program.c')
-rw-r--r--src/mesa/state_tracker/st_program.c267
1 files changed, 114 insertions, 153 deletions
diff --git a/src/mesa/state_tracker/st_program.c b/src/mesa/state_tracker/st_program.c
index 5450b59a2d9..6a2b99cf1b4 100644
--- a/src/mesa/state_tracker/st_program.c
+++ b/src/mesa/state_tracker/st_program.c
@@ -49,6 +49,36 @@
#include "st_mesa_to_tgsi.h"
#include "cso_cache/cso_context.h"
+ /* Clean out any old compilations:
+ */
+void
+st_vp_release_varients( struct st_context *st,
+ struct st_vertex_program *stvp )
+{
+ struct st_vp_varient *vpv;
+
+ for (vpv = stvp->varients; vpv; ) {
+ struct st_vp_varient *next = vpv->next;
+
+ if (vpv->driver_shader)
+ cso_delete_vertex_shader(st->cso_context, vpv->driver_shader);
+
+ if (vpv->draw_shader)
+ draw_delete_vertex_shader( st->draw, vpv->draw_shader );
+
+ if (vpv->state.tokens)
+ st_free_tokens(vpv->state.tokens);
+
+ FREE( vpv );
+
+ vpv = next;
+ }
+
+ stvp->varients = NULL;
+}
+
+
+
/**
* Translate a Mesa vertex shader into a TGSI shader.
@@ -58,22 +88,13 @@
* \return pointer to cached pipe_shader object.
*/
void
-st_translate_vertex_program(struct st_context *st,
- struct st_vertex_program *stvp,
- const GLuint outputMapping[],
- const ubyte *outputSemanticName,
- const ubyte *outputSemanticIndex)
+st_prepare_vertex_program(struct st_context *st,
+ struct st_vertex_program *stvp)
{
- struct pipe_context *pipe = st->pipe;
- GLuint defaultOutputMapping[VERT_RESULT_MAX];
- GLuint attr, i;
- GLuint num_generic = 0;
-
- uint vs_num_inputs = 0;
+ GLuint attr;
- ubyte vs_output_semantic_name[PIPE_MAX_SHADER_OUTPUTS];
- ubyte vs_output_semantic_index[PIPE_MAX_SHADER_OUTPUTS];
- uint vs_num_outputs = 0;
+ stvp->num_inputs = 0;
+ stvp->num_outputs = 0;
if (stvp->Base.IsPositionInvariant)
_mesa_insert_mvp_code(st->ctx, &stvp->Base);
@@ -84,92 +105,56 @@ st_translate_vertex_program(struct st_context *st,
*/
for (attr = 0; attr < VERT_ATTRIB_MAX; attr++) {
if (stvp->Base.Base.InputsRead & (1 << attr)) {
- stvp->input_to_index[attr] = vs_num_inputs;
- stvp->index_to_input[vs_num_inputs] = attr;
-
- vs_num_inputs++;
+ stvp->input_to_index[attr] = stvp->num_inputs;
+ stvp->index_to_input[stvp->num_inputs] = attr;
+ stvp->num_inputs++;
}
}
-#if 0
- if (outputMapping && outputSemanticName) {
- printf("VERT_RESULT written out_slot semantic_name semantic_index\n");
- for (attr = 0; attr < VERT_RESULT_MAX; attr++) {
- printf(" %-2d %c %3d %2d %2d\n",
- attr,
- ((stvp->Base.Base.OutputsWritten & (1 << attr)) ? 'Y' : ' '),
- outputMapping[attr],
- outputSemanticName[attr],
- outputSemanticIndex[attr]);
- }
- }
-#endif
-
- /* initialize output semantics to defaults */
- for (i = 0; i < PIPE_MAX_SHADER_OUTPUTS; i++) {
- assert(i < Elements(vs_output_semantic_name));
- vs_output_semantic_name[i] = TGSI_SEMANTIC_GENERIC;
- vs_output_semantic_index[i] = 0;
- }
-
- num_generic = 0;
- /*
- * Determine number of outputs, the (default) output register
- * mapping and the semantic information for each output.
+ /* Compute mapping of vertex program outputs to slots.
*/
for (attr = 0; attr < VERT_RESULT_MAX; attr++) {
- if (stvp->Base.Base.OutputsWritten & (1 << attr)) {
- GLuint slot;
-
- /* XXX
- * Pass in the fragment program's input's semantic info.
- * Use the generic semantic indexes from there, instead of
- * guessing below.
- */
-
- if (outputMapping) {
- slot = outputMapping[attr];
- assert(slot != ~0);
- }
- else {
- slot = vs_num_outputs;
- vs_num_outputs++;
- defaultOutputMapping[attr] = slot;
- }
+ if ((stvp->Base.Base.OutputsWritten & (1 << attr)) == 0) {
+ stvp->result_to_output[attr] = ~0;
+ }
+ else {
+ unsigned slot = stvp->num_outputs++;
+
+ stvp->result_to_output[attr] = slot;
switch (attr) {
case VERT_RESULT_HPOS:
- assert(slot == 0);
- vs_output_semantic_name[slot] = TGSI_SEMANTIC_POSITION;
- vs_output_semantic_index[slot] = 0;
+ stvp->output_semantic_name[slot] = TGSI_SEMANTIC_POSITION;
+ stvp->output_semantic_index[slot] = 0;
break;
case VERT_RESULT_COL0:
- vs_output_semantic_name[slot] = TGSI_SEMANTIC_COLOR;
- vs_output_semantic_index[slot] = 0;
+ stvp->output_semantic_name[slot] = TGSI_SEMANTIC_COLOR;
+ stvp->output_semantic_index[slot] = 0;
break;
case VERT_RESULT_COL1:
- vs_output_semantic_name[slot] = TGSI_SEMANTIC_COLOR;
- vs_output_semantic_index[slot] = 1;
+ stvp->output_semantic_name[slot] = TGSI_SEMANTIC_COLOR;
+ stvp->output_semantic_index[slot] = 1;
break;
case VERT_RESULT_BFC0:
- vs_output_semantic_name[slot] = TGSI_SEMANTIC_BCOLOR;
- vs_output_semantic_index[slot] = 0;
+ stvp->output_semantic_name[slot] = TGSI_SEMANTIC_BCOLOR;
+ stvp->output_semantic_index[slot] = 0;
break;
case VERT_RESULT_BFC1:
- vs_output_semantic_name[slot] = TGSI_SEMANTIC_BCOLOR;
- vs_output_semantic_index[slot] = 1;
+ stvp->output_semantic_name[slot] = TGSI_SEMANTIC_BCOLOR;
+ stvp->output_semantic_index[slot] = 1;
break;
case VERT_RESULT_FOGC:
- vs_output_semantic_name[slot] = TGSI_SEMANTIC_FOG;
- vs_output_semantic_index[slot] = 0;
+ stvp->output_semantic_name[slot] = TGSI_SEMANTIC_FOG;
+ stvp->output_semantic_index[slot] = 0;
break;
case VERT_RESULT_PSIZ:
- vs_output_semantic_name[slot] = TGSI_SEMANTIC_PSIZE;
- vs_output_semantic_index[slot] = 0;
+ stvp->output_semantic_name[slot] = TGSI_SEMANTIC_PSIZE;
+ stvp->output_semantic_index[slot] = 0;
break;
case VERT_RESULT_EDGE:
assert(0);
break;
+
case VERT_RESULT_TEX0:
case VERT_RESULT_TEX1:
case VERT_RESULT_TEX2:
@@ -178,87 +163,50 @@ st_translate_vertex_program(struct st_context *st,
case VERT_RESULT_TEX5:
case VERT_RESULT_TEX6:
case VERT_RESULT_TEX7:
- /* fall-through */
+ stvp->output_semantic_name[slot] = TGSI_SEMANTIC_GENERIC;
+ stvp->output_semantic_index[slot] = attr - VERT_RESULT_TEX0;
+ break;
+
case VERT_RESULT_VAR0:
- /* fall-through */
default:
- assert(slot < Elements(vs_output_semantic_name));
- if (outputSemanticName) {
- /* use provided semantic into */
- assert(outputSemanticName[attr] != TGSI_SEMANTIC_COUNT);
- vs_output_semantic_name[slot] = outputSemanticName[attr];
- vs_output_semantic_index[slot] = outputSemanticIndex[attr];
- }
- else {
- /* use default semantic info */
- vs_output_semantic_name[slot] = TGSI_SEMANTIC_GENERIC;
- vs_output_semantic_index[slot] = num_generic++;
- }
+ assert(attr < VERT_RESULT_MAX);
+ stvp->output_semantic_name[slot] = TGSI_SEMANTIC_GENERIC;
+ stvp->output_semantic_index[slot] = (FRAG_ATTRIB_VAR0 -
+ FRAG_ATTRIB_TEX0 +
+ attr -
+ VERT_RESULT_VAR0);
+ break;
}
}
}
+}
- if (outputMapping) {
- /* find max output slot referenced to compute vs_num_outputs */
- GLuint maxSlot = 0;
- for (attr = 0; attr < VERT_RESULT_MAX; attr++) {
- if (outputMapping[attr] != ~0 && outputMapping[attr] > maxSlot)
- maxSlot = outputMapping[attr];
- }
- vs_num_outputs = maxSlot + 1;
- }
- else {
- outputMapping = defaultOutputMapping;
- }
-#if 0 /* debug */
- {
- GLuint i;
- printf("outputMapping? %d\n", outputMapping ? 1 : 0);
- if (outputMapping) {
- printf("attr -> slot\n");
- for (i = 0; i < 16; i++) {
- printf(" %2d %3d\n", i, outputMapping[i]);
- }
- }
- printf("slot sem_name sem_index\n");
- for (i = 0; i < vs_num_outputs; i++) {
- printf(" %2d %d %d\n",
- i,
- vs_output_semantic_name[i],
- vs_output_semantic_index[i]);
- }
- }
-#endif
-
- /* free old shader state, if any */
- if (stvp->state.tokens) {
- st_free_tokens(stvp->state.tokens);
- stvp->state.tokens = NULL;
- }
- if (stvp->driver_shader) {
- cso_delete_vertex_shader(st->cso_context, stvp->driver_shader);
- stvp->driver_shader = NULL;
- }
+struct st_vp_varient *
+st_translate_vertex_program(struct st_context *st,
+ struct st_vertex_program *stvp,
+ const struct st_vp_varient_key *key)
+{
+ struct st_vp_varient *vpv = CALLOC_STRUCT(st_vp_varient);
+ struct pipe_context *pipe = st->pipe;
- stvp->state.tokens =
+ vpv->state.tokens =
st_translate_mesa_program(st->ctx,
TGSI_PROCESSOR_VERTEX,
&stvp->Base.Base,
/* inputs */
- vs_num_inputs,
+ stvp->num_inputs,
stvp->input_to_index,
NULL, /* input semantic name */
NULL, /* input semantic index */
NULL,
/* outputs */
- vs_num_outputs,
- outputMapping,
- vs_output_semantic_name,
- vs_output_semantic_index );
+ stvp->num_outputs,
+ stvp->result_to_output,
+ stvp->output_semantic_name,
+ stvp->output_semantic_index );
- stvp->num_inputs = vs_num_inputs;
- stvp->driver_shader = pipe->create_vs_state(pipe, &stvp->state);
+ vpv->driver_shader = pipe->create_vs_state(pipe, &vpv->state);
if ((ST_DEBUG & DEBUG_TGSI) && (ST_DEBUG & DEBUG_MESA)) {
_mesa_print_program(&stvp->Base.Base);
@@ -266,9 +214,11 @@ st_translate_vertex_program(struct st_context *st,
}
if (ST_DEBUG & DEBUG_TGSI) {
- tgsi_dump( stvp->state.tokens, 0 );
+ tgsi_dump( vpv->state.tokens, 0 );
debug_printf("\n");
}
+
+ return vpv;
}
@@ -291,7 +241,6 @@ st_translate_fragment_program(struct st_context *st,
GLuint attr;
const GLbitfield inputsRead = stfp->Base.Base.InputsRead;
GLuint vslot = 0;
- GLuint num_generic = 0;
uint fs_num_inputs = 0;
@@ -341,14 +290,25 @@ st_translate_fragment_program(struct st_context *st,
break;
case FRAG_ATTRIB_FACE:
stfp->input_semantic_name[slot] = TGSI_SEMANTIC_FACE;
- stfp->input_semantic_index[slot] = num_generic++;
+ stfp->input_semantic_index[slot] = 0;
interpMode[slot] = TGSI_INTERPOLATE_CONSTANT;
break;
- case FRAG_ATTRIB_PNTC:
- stfp->input_semantic_name[slot] = TGSI_SEMANTIC_GENERIC;
- stfp->input_semantic_index[slot] = num_generic++;
- interpMode[slot] = TGSI_INTERPOLATE_PERSPECTIVE;
- break;
+
+ /* In most cases, there is nothing special about these
+ * inputs, so adopt a convention to use the generic
+ * semantic name and the mesa FRAG_ATTRIB_ number as the
+ * index.
+ *
+ * All that is required is that the vertex shader labels
+ * its own outputs similarly, and that the vertex shader
+ * generates at least every output required by the
+ * fragment shader plus fixed-function hardware (such as
+ * BFC).
+ *
+ * There is no requirement that semantic indexes start at
+ * zero or be restricted to a particular range -- nobody
+ * should be building tables based on semantic index.
+ */
case FRAG_ATTRIB_TEX0:
case FRAG_ATTRIB_TEX1:
case FRAG_ATTRIB_TEX2:
@@ -357,16 +317,17 @@ st_translate_fragment_program(struct st_context *st,
case FRAG_ATTRIB_TEX5:
case FRAG_ATTRIB_TEX6:
case FRAG_ATTRIB_TEX7:
- stfp->input_semantic_name[slot] = TGSI_SEMANTIC_GENERIC;
- stfp->input_semantic_index[slot] = num_generic++;
- interpMode[slot] = TGSI_INTERPOLATE_PERSPECTIVE;
- break;
+ case FRAG_ATTRIB_PNTC:
case FRAG_ATTRIB_VAR0:
- /* fall-through */
default:
+ /* Actually, let's try and zero-base this just for
+ * readability of the generated TGSI.
+ */
+ assert(attr >= FRAG_ATTRIB_TEX0);
+ stfp->input_semantic_index[slot] = (attr - FRAG_ATTRIB_TEX0);
stfp->input_semantic_name[slot] = TGSI_SEMANTIC_GENERIC;
- stfp->input_semantic_index[slot] = num_generic++;
interpMode[slot] = TGSI_INTERPOLATE_PERSPECTIVE;
+ break;
}
}
}
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-11 02:20:33 +0000