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/*
* Copyright 2009 Corbin Simpson <MostAwesomeDude@gmail.com>
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* on the rights to use, copy, modify, merge, publish, distribute, sub
* license, and/or sell copies of the Software, and to permit persons to whom
* the Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
* THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
* USE OR OTHER DEALINGS IN THE SOFTWARE. */
#include "r300_vs.h"
#include "r300_context.h"
#include "r300_tgsi_to_rc.h"
#include "tgsi/tgsi_dump.h"
#include "tgsi/tgsi_parse.h"
#include "radeon_compiler.h"
static void set_vertex_inputs_outputs(struct r300_vertex_program_compiler * c)
{
struct r300_vertex_shader * vs = c->UserData;
struct tgsi_shader_info* info = &vs->info;
struct tgsi_parse_context parser;
struct tgsi_full_declaration * decl;
boolean pointsize = FALSE;
int out_colors = 0;
int colors = 0;
int out_generic = 0;
int generic = 0;
int i;
/* Fill in the input mapping */
for (i = 0; i < info->num_inputs; i++)
c->code->inputs[i] = i;
/* Fill in the output mapping */
for (i = 0; i < info->num_outputs; i++) {
switch (info->output_semantic_name[i]) {
case TGSI_SEMANTIC_PSIZE:
pointsize = TRUE;
break;
case TGSI_SEMANTIC_COLOR:
out_colors++;
break;
case TGSI_SEMANTIC_FOG:
case TGSI_SEMANTIC_GENERIC:
out_generic++;
break;
}
}
tgsi_parse_init(&parser, vs->state.tokens);
while (!tgsi_parse_end_of_tokens(&parser)) {
tgsi_parse_token(&parser);
if (parser.FullToken.Token.Type != TGSI_TOKEN_TYPE_DECLARATION)
continue;
decl = &parser.FullToken.FullDeclaration;
if (decl->Declaration.File != TGSI_FILE_OUTPUT)
continue;
switch (decl->Semantic.Name) {
case TGSI_SEMANTIC_POSITION:
c->code->outputs[decl->Range.First] = 0;
break;
case TGSI_SEMANTIC_PSIZE:
c->code->outputs[decl->Range.First] = 1;
break;
case TGSI_SEMANTIC_COLOR:
c->code->outputs[decl->Range.First] = 1 +
(pointsize ? 1 : 0) +
colors++;
break;
case TGSI_SEMANTIC_FOG:
case TGSI_SEMANTIC_GENERIC:
c->code->outputs[decl->Range.First] = 1 +
(pointsize ? 1 : 0) +
out_colors +
generic++;
break;
default:
debug_printf("r300: vs: Bad semantic declaration %d\n",
decl->Semantic.Name);
break;
}
}
tgsi_parse_free(&parser);
}
void r300_translate_vertex_shader(struct r300_context* r300,
struct r300_vertex_shader* vs)
{
struct r300_vertex_program_compiler compiler;
struct tgsi_to_rc ttr;
/* Setup the compiler */
rc_init(&compiler.Base);
compiler.Base.Debug = DBG_ON(r300, DBG_VP);
compiler.code = &vs->code;
compiler.UserData = vs;
if (compiler.Base.Debug) {
debug_printf("r300: Initial vertex program\n");
tgsi_dump(vs->state.tokens, 0);
}
/* Translate TGSI to our internal representation */
ttr.compiler = &compiler.Base;
ttr.info = &vs->info;
r300_tgsi_to_rc(&ttr, vs->state.tokens);
compiler.RequiredOutputs = ~(~0 << vs->info.num_outputs);
compiler.SetHwInputOutput = &set_vertex_inputs_outputs;
/* Invoke the compiler */
r3xx_compile_vertex_program(&compiler);
if (compiler.Base.Error) {
/* Todo: Fail gracefully */
fprintf(stderr, "r300 VP: Compiler error\n");
abort();
}
/* And, finally... */
rc_destroy(&compiler.Base);
vs->translated = TRUE;
}
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