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st/mesa: inline st_prepare_fragment_program in st_translate_fragment_program

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This reverts an unnecessary part of commit 4683529048 and fixes misrendering
and an assertion failure in Cogs.

Fixes freedesktop.org bug 39888.

Reviewed-by: Brian Paul <brianp@vmware.com>
This commit is contained in:
Bryan Cain
2011-08-07 14:15:35 -05:00
parent 506de19549
commit ffb7d02154
2 changed files with 162 additions and 179 deletions
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326
src/mesa/state_tracker/st_program.c
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@@ -416,151 +416,6 @@ st_get_vp_variant(struct st_context *st,
return vpv;
}
/**
* Translate Mesa fragment shader attributes to TGSI attributes.
* \return GL_TRUE if color output should be written to all render targets,
* GL_FALSE if not
*/
GLboolean
st_prepare_fragment_program(struct gl_context *ctx,
struct st_fragment_program *stfp)
{
GLuint attr;
const GLbitfield inputsRead = stfp->Base.Base.InputsRead;
GLboolean write_all = GL_FALSE;
/*
* Convert Mesa program inputs to TGSI input register semantics.
*/
for (attr = 0; attr < FRAG_ATTRIB_MAX; attr++) {
if (inputsRead & (1 << attr)) {
const GLuint slot = stfp->num_inputs++;
stfp->input_to_index[attr] = slot;
switch (attr) {
case FRAG_ATTRIB_WPOS:
stfp->input_semantic_name[slot] = TGSI_SEMANTIC_POSITION;
stfp->input_semantic_index[slot] = 0;
stfp->interp_mode[slot] = TGSI_INTERPOLATE_LINEAR;
break;
case FRAG_ATTRIB_COL0:
stfp->input_semantic_name[slot] = TGSI_SEMANTIC_COLOR;
stfp->input_semantic_index[slot] = 0;
stfp->interp_mode[slot] = TGSI_INTERPOLATE_LINEAR;
break;
case FRAG_ATTRIB_COL1:
stfp->input_semantic_name[slot] = TGSI_SEMANTIC_COLOR;
stfp->input_semantic_index[slot] = 1;
stfp->interp_mode[slot] = TGSI_INTERPOLATE_LINEAR;
break;
case FRAG_ATTRIB_FOGC:
stfp->input_semantic_name[slot] = TGSI_SEMANTIC_FOG;
stfp->input_semantic_index[slot] = 0;
stfp->interp_mode[slot] = TGSI_INTERPOLATE_PERSPECTIVE;
break;
case FRAG_ATTRIB_FACE:
stfp->input_semantic_name[slot] = TGSI_SEMANTIC_FACE;
stfp->input_semantic_index[slot] = 0;
stfp->interp_mode[slot] = TGSI_INTERPOLATE_CONSTANT;
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_PNTC:
case FRAG_ATTRIB_TEX0:
case FRAG_ATTRIB_TEX1:
case FRAG_ATTRIB_TEX2:
case FRAG_ATTRIB_TEX3:
case FRAG_ATTRIB_TEX4:
case FRAG_ATTRIB_TEX5:
case FRAG_ATTRIB_TEX6:
case FRAG_ATTRIB_TEX7:
case FRAG_ATTRIB_VAR0:
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;
if (attr == FRAG_ATTRIB_PNTC)
stfp->interp_mode[slot] = TGSI_INTERPOLATE_LINEAR;
else
stfp->interp_mode[slot] = TGSI_INTERPOLATE_PERSPECTIVE;
break;
}
}
else {
stfp->input_to_index[attr] = -1;
}
}
/*
* Semantics and mapping for outputs
*/
{
uint numColors = 0;
GLbitfield64 outputsWritten = stfp->Base.Base.OutputsWritten;
/* if z is written, emit that first */
if (outputsWritten & BITFIELD64_BIT(FRAG_RESULT_DEPTH)) {
stfp->output_semantic_name[stfp->num_outputs] = TGSI_SEMANTIC_POSITION;
stfp->output_semantic_index[stfp->num_outputs] = 0;
stfp->result_to_output[FRAG_RESULT_DEPTH] = stfp->num_outputs;
stfp->num_outputs++;
outputsWritten &= ~(1 << FRAG_RESULT_DEPTH);
}
if (outputsWritten & BITFIELD64_BIT(FRAG_RESULT_STENCIL)) {
stfp->output_semantic_name[stfp->num_outputs] = TGSI_SEMANTIC_STENCIL;
stfp->output_semantic_index[stfp->num_outputs] = 0;
stfp->result_to_output[FRAG_RESULT_STENCIL] = stfp->num_outputs;
stfp->num_outputs++;
outputsWritten &= ~(1 << FRAG_RESULT_STENCIL);
}
/* handle remaning outputs (color) */
for (attr = 0; attr < FRAG_RESULT_MAX; attr++) {
if (outputsWritten & BITFIELD64_BIT(attr)) {
switch (attr) {
case FRAG_RESULT_DEPTH:
case FRAG_RESULT_STENCIL:
/* handled above */
assert(0);
break;
case FRAG_RESULT_COLOR:
write_all = GL_TRUE; /* fallthrough */
default:
assert(attr == FRAG_RESULT_COLOR ||
(FRAG_RESULT_DATA0 <= attr && attr < FRAG_RESULT_MAX));
stfp->output_semantic_name[stfp->num_outputs] = TGSI_SEMANTIC_COLOR;
stfp->output_semantic_index[stfp->num_outputs] = numColors;
stfp->result_to_output[attr] = stfp->num_outputs;
numColors++;
break;
}
stfp->num_outputs++;
}
}
}
return write_all;
}
/**
* Translate a Mesa fragment shader into a TGSI shader using extra info in
@@ -613,12 +468,155 @@ st_translate_fragment_program(struct st_context *st,
if (!stfp->tgsi.tokens) {
/* need to translate Mesa instructions to TGSI now */
GLuint outputMapping[FRAG_RESULT_MAX];
GLuint inputMapping[FRAG_ATTRIB_MAX];
GLuint interpMode[PIPE_MAX_SHADER_INPUTS]; /* XXX size? */
GLuint attr;
const GLbitfield inputsRead = stfp->Base.Base.InputsRead;
struct ureg_program *ureg;
GLboolean write_all = st_prepare_fragment_program(st->ctx, stfp);
GLboolean write_all = GL_FALSE;
ubyte input_semantic_name[PIPE_MAX_SHADER_INPUTS];
ubyte input_semantic_index[PIPE_MAX_SHADER_INPUTS];
uint fs_num_inputs = 0;
ubyte fs_output_semantic_name[PIPE_MAX_SHADER_OUTPUTS];
ubyte fs_output_semantic_index[PIPE_MAX_SHADER_OUTPUTS];
uint fs_num_outputs = 0;
if (!stfp->glsl_to_tgsi)
_mesa_remove_output_reads(&stfp->Base.Base, PROGRAM_OUTPUT);
/*
* Convert Mesa program inputs to TGSI input register semantics.
*/
for (attr = 0; attr < FRAG_ATTRIB_MAX; attr++) {
if (inputsRead & (1 << attr)) {
const GLuint slot = fs_num_inputs++;
inputMapping[attr] = slot;
switch (attr) {
case FRAG_ATTRIB_WPOS:
input_semantic_name[slot] = TGSI_SEMANTIC_POSITION;
input_semantic_index[slot] = 0;
interpMode[slot] = TGSI_INTERPOLATE_LINEAR;
break;
case FRAG_ATTRIB_COL0:
input_semantic_name[slot] = TGSI_SEMANTIC_COLOR;
input_semantic_index[slot] = 0;
interpMode[slot] = TGSI_INTERPOLATE_LINEAR;
break;
case FRAG_ATTRIB_COL1:
input_semantic_name[slot] = TGSI_SEMANTIC_COLOR;
input_semantic_index[slot] = 1;
interpMode[slot] = TGSI_INTERPOLATE_LINEAR;
break;
case FRAG_ATTRIB_FOGC:
input_semantic_name[slot] = TGSI_SEMANTIC_FOG;
input_semantic_index[slot] = 0;
interpMode[slot] = TGSI_INTERPOLATE_PERSPECTIVE;
break;
case FRAG_ATTRIB_FACE:
input_semantic_name[slot] = TGSI_SEMANTIC_FACE;
input_semantic_index[slot] = 0;
interpMode[slot] = TGSI_INTERPOLATE_CONSTANT;
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_PNTC:
case FRAG_ATTRIB_TEX0:
case FRAG_ATTRIB_TEX1:
case FRAG_ATTRIB_TEX2:
case FRAG_ATTRIB_TEX3:
case FRAG_ATTRIB_TEX4:
case FRAG_ATTRIB_TEX5:
case FRAG_ATTRIB_TEX6:
case FRAG_ATTRIB_TEX7:
case FRAG_ATTRIB_VAR0:
default:
/* Actually, let's try and zero-base this just for
* readability of the generated TGSI.
*/
assert(attr >= FRAG_ATTRIB_TEX0);
input_semantic_index[slot] = (attr - FRAG_ATTRIB_TEX0);
input_semantic_name[slot] = TGSI_SEMANTIC_GENERIC;
if (attr == FRAG_ATTRIB_PNTC)
interpMode[slot] = TGSI_INTERPOLATE_LINEAR;
else
interpMode[slot] = TGSI_INTERPOLATE_PERSPECTIVE;
break;
}
}
else {
inputMapping[attr] = -1;
}
}
/*
* Semantics and mapping for outputs
*/
{
uint numColors = 0;
GLbitfield64 outputsWritten = stfp->Base.Base.OutputsWritten;
/* if z is written, emit that first */
if (outputsWritten & BITFIELD64_BIT(FRAG_RESULT_DEPTH)) {
fs_output_semantic_name[fs_num_outputs] = TGSI_SEMANTIC_POSITION;
fs_output_semantic_index[fs_num_outputs] = 0;
outputMapping[FRAG_RESULT_DEPTH] = fs_num_outputs;
fs_num_outputs++;
outputsWritten &= ~(1 << FRAG_RESULT_DEPTH);
}
if (outputsWritten & BITFIELD64_BIT(FRAG_RESULT_STENCIL)) {
fs_output_semantic_name[fs_num_outputs] = TGSI_SEMANTIC_STENCIL;
fs_output_semantic_index[fs_num_outputs] = 0;
outputMapping[FRAG_RESULT_STENCIL] = fs_num_outputs;
fs_num_outputs++;
outputsWritten &= ~(1 << FRAG_RESULT_STENCIL);
}
/* handle remaning outputs (color) */
for (attr = 0; attr < FRAG_RESULT_MAX; attr++) {
if (outputsWritten & BITFIELD64_BIT(attr)) {
switch (attr) {
case FRAG_RESULT_DEPTH:
case FRAG_RESULT_STENCIL:
/* handled above */
assert(0);
break;
case FRAG_RESULT_COLOR:
write_all = GL_TRUE; /* fallthrough */
default:
assert(attr == FRAG_RESULT_COLOR ||
(FRAG_RESULT_DATA0 <= attr && attr < FRAG_RESULT_MAX));
fs_output_semantic_name[fs_num_outputs] = TGSI_SEMANTIC_COLOR;
fs_output_semantic_index[fs_num_outputs] = numColors;
outputMapping[attr] = fs_num_outputs;
numColors++;
break;
}
fs_num_outputs++;
}
}
}
ureg = ureg_create( TGSI_PROCESSOR_FRAGMENT );
if (ureg == NULL)
return NULL;
@@ -638,32 +636,32 @@ st_translate_fragment_program(struct st_context *st,
stfp->glsl_to_tgsi,
&stfp->Base.Base,
/* inputs */
stfp->num_inputs,
stfp->input_to_index,
stfp->input_semantic_name,
stfp->input_semantic_index,
stfp->interp_mode,
fs_num_inputs,
inputMapping,
input_semantic_name,
input_semantic_index,
interpMode,
/* outputs */
stfp->num_outputs,
stfp->result_to_output,
stfp->output_semantic_name,
stfp->output_semantic_index, FALSE );
fs_num_outputs,
outputMapping,
fs_output_semantic_name,
fs_output_semantic_index, FALSE );
else
st_translate_mesa_program(st->ctx,
TGSI_PROCESSOR_FRAGMENT,
ureg,
&stfp->Base.Base,
/* inputs */
stfp->num_inputs,
stfp->input_to_index,
stfp->input_semantic_name,
stfp->input_semantic_index,
stfp->interp_mode,
fs_num_inputs,
inputMapping,
input_semantic_name,
input_semantic_index,
interpMode,
/* outputs */
stfp->num_outputs,
stfp->result_to_output,
stfp->output_semantic_name,
stfp->output_semantic_index, FALSE );
fs_num_outputs,
outputMapping,
fs_output_semantic_name,
fs_output_semantic_index, FALSE );
stfp->tgsi.tokens = ureg_get_tokens( ureg, NULL );
ureg_destroy( ureg );