/*
* Copyright 2009 Corbin Simpson <MostAwesomeDude@gmail.com>
+ * Copyright 2009 Marek Olšák <maraeo@gmail.com>
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* USE OR OTHER DEALINGS IN THE SOFTWARE. */
#include "r300_vs.h"
+#include "r300_fs.h"
#include "r300_context.h"
+#include "r300_screen.h"
#include "r300_tgsi_to_rc.h"
+#include "r300_reg.h"
#include "tgsi/tgsi_dump.h"
#include "tgsi/tgsi_parse.h"
#include "radeon_compiler.h"
+#include "util/u_math.h"
-static void set_vertex_inputs_outputs(struct r300_vertex_program_compiler * c)
+/* Convert info about VS output semantics into r300_shader_semantics. */
+static void r300_shader_read_vs_outputs(
+ struct tgsi_shader_info* info,
+ struct r300_shader_semantics* vs_outputs)
{
- 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;
+ unsigned index;
- /* Fill in the input mapping */
- for (i = 0; i < info->num_inputs; i++)
- c->code->inputs[i] = i;
+ r300_shader_semantics_reset(vs_outputs);
- /* Fill in the output mapping */
for (i = 0; i < info->num_outputs; i++) {
+ index = info->output_semantic_index[i];
+
switch (info->output_semantic_name[i]) {
+ case TGSI_SEMANTIC_POSITION:
+ assert(index == 0);
+ vs_outputs->pos = i;
+ break;
+
case TGSI_SEMANTIC_PSIZE:
- pointsize = TRUE;
+ assert(index == 0);
+ vs_outputs->psize = i;
break;
+
case TGSI_SEMANTIC_COLOR:
- out_colors++;
+ assert(index <= ATTR_COLOR_COUNT);
+ vs_outputs->color[index] = i;
break;
- case TGSI_SEMANTIC_FOG:
+
+ case TGSI_SEMANTIC_BCOLOR:
+ assert(index <= ATTR_COLOR_COUNT);
+ vs_outputs->bcolor[index] = i;
+ break;
+
case TGSI_SEMANTIC_GENERIC:
- out_generic++;
+ assert(index <= ATTR_GENERIC_COUNT);
+ vs_outputs->generic[index] = i;
+ break;
+
+ case TGSI_SEMANTIC_FOG:
+ assert(index == 0);
+ vs_outputs->fog = i;
break;
+
+ case TGSI_SEMANTIC_EDGEFLAG:
+ assert(index == 0);
+ fprintf(stderr, "r300 VP: cannot handle edgeflag output\n");
+ assert(0);
+ break;
+ default:
+ assert(0);
}
}
+}
- tgsi_parse_init(&parser, vs->state.tokens);
+static void r300_shader_vap_output_fmt(struct r300_vertex_shader* vs)
+{
+ struct r300_shader_semantics* vs_outputs = &vs->outputs;
+ uint32_t* hwfmt = vs->hwfmt;
+ int i, gen_count;
+ boolean any_bcolor_used = vs_outputs->bcolor[0] != ATTR_UNUSED ||
+ vs_outputs->bcolor[1] != ATTR_UNUSED;
- while (!tgsi_parse_end_of_tokens(&parser)) {
- tgsi_parse_token(&parser);
+ /* Do the actual vertex_info setup.
+ *
+ * vertex_info has four uints of hardware-specific data in it.
+ * vinfo.hwfmt[0] is R300_VAP_VTX_STATE_CNTL
+ * vinfo.hwfmt[1] is R300_VAP_VSM_VTX_ASSM
+ * vinfo.hwfmt[2] is R300_VAP_OUTPUT_VTX_FMT_0
+ * vinfo.hwfmt[3] is R300_VAP_OUTPUT_VTX_FMT_1 */
- if (parser.FullToken.Token.Type != TGSI_TOKEN_TYPE_DECLARATION)
- continue;
+ hwfmt[0] = 0x5555; /* XXX this is classic Mesa bonghits */
- decl = &parser.FullToken.FullDeclaration;
+ /* Position. */
+ if (vs_outputs->pos != ATTR_UNUSED) {
+ hwfmt[1] |= R300_INPUT_CNTL_POS;
+ hwfmt[2] |= R300_VAP_OUTPUT_VTX_FMT_0__POS_PRESENT;
+ } else {
+ assert(0);
+ }
- if (decl->Declaration.File != TGSI_FILE_OUTPUT)
- continue;
+ /* Point size. */
+ if (vs_outputs->psize != ATTR_UNUSED) {
+ hwfmt[2] |= R300_VAP_OUTPUT_VTX_FMT_0__PT_SIZE_PRESENT;
+ }
- switch (decl->Semantic.SemanticName) {
- case TGSI_SEMANTIC_POSITION:
- c->code->outputs[decl->DeclarationRange.First] = 0;
- break;
- case TGSI_SEMANTIC_PSIZE:
- c->code->outputs[decl->DeclarationRange.First] = 1;
- break;
- case TGSI_SEMANTIC_COLOR:
- c->code->outputs[decl->DeclarationRange.First] = 1 +
- (pointsize ? 1 : 0) +
- colors++;
- break;
- case TGSI_SEMANTIC_FOG:
- case TGSI_SEMANTIC_GENERIC:
- c->code->outputs[decl->DeclarationRange.First] = 1 +
- (pointsize ? 1 : 0) +
- out_colors +
- generic++;
- break;
- default:
- debug_printf("r300: vs: Bad semantic declaration %d\n",
- decl->Semantic.SemanticName);
- break;
+ /* Colors. */
+ for (i = 0; i < ATTR_COLOR_COUNT; i++) {
+ if (vs_outputs->color[i] != ATTR_UNUSED || any_bcolor_used ||
+ vs_outputs->color[1] != ATTR_UNUSED) {
+ hwfmt[1] |= R300_INPUT_CNTL_COLOR;
+ hwfmt[2] |= R300_VAP_OUTPUT_VTX_FMT_0__COLOR_0_PRESENT << i;
+ }
+ }
+
+ /* Back-face colors. */
+ if (any_bcolor_used) {
+ for (i = 0; i < ATTR_COLOR_COUNT; i++) {
+ hwfmt[1] |= R300_INPUT_CNTL_COLOR;
+ hwfmt[2] |= R300_VAP_OUTPUT_VTX_FMT_0__COLOR_0_PRESENT << (2+i);
+ }
+ }
+
+ /* Texture coordinates. */
+ gen_count = 0;
+ for (i = 0; i < ATTR_GENERIC_COUNT; i++) {
+ if (vs_outputs->generic[i] != ATTR_UNUSED) {
+ hwfmt[1] |= (R300_INPUT_CNTL_TC0 << gen_count);
+ hwfmt[3] |= (4 << (3 * gen_count));
+ gen_count++;
}
}
- tgsi_parse_free(&parser);
+ /* Fog coordinates. */
+ if (vs_outputs->fog != ATTR_UNUSED) {
+ hwfmt[1] |= (R300_INPUT_CNTL_TC0 << gen_count);
+ hwfmt[3] |= (4 << (3 * gen_count));
+ gen_count++;
+ }
+
+ /* XXX magic */
+ assert(gen_count <= 8);
+
+ /* WPOS. */
+ vs->wpos_tex_output = gen_count;
}
+/* Sets up stream mapping to equivalent VS outputs if TCL is bypassed
+ * or isn't present. */
+static void r300_stream_locations_notcl(
+ struct r300_shader_semantics* vs_outputs,
+ int* stream_loc)
+{
+ int i, tabi = 0, gen_count;
+ boolean any_bcolor_used = vs_outputs->bcolor[0] != ATTR_UNUSED ||
+ vs_outputs->bcolor[1] != ATTR_UNUSED;
+
+ /* Position. */
+ stream_loc[tabi++] = 0;
+
+ /* Point size. */
+ if (vs_outputs->psize != ATTR_UNUSED) {
+ stream_loc[tabi++] = 1;
+ }
+
+ /* Colors. */
+ for (i = 0; i < ATTR_COLOR_COUNT; i++) {
+ if (vs_outputs->color[i] != ATTR_UNUSED || any_bcolor_used ||
+ vs_outputs->color[1] != ATTR_UNUSED) {
+ stream_loc[tabi++] = 2 + i;
+ }
+ }
+
+ /* Back-face colors. */
+ if (any_bcolor_used) {
+ for (i = 0; i < ATTR_COLOR_COUNT; i++) {
+ stream_loc[tabi++] = 4 + i;
+ }
+ }
+
+ /* Texture coordinates. */
+ gen_count = 0;
+ for (i = 0; i < ATTR_GENERIC_COUNT; i++) {
+ if (vs_outputs->generic[i] != ATTR_UNUSED) {
+ assert(tabi < 16);
+ stream_loc[tabi++] = 6 + gen_count;
+ gen_count++;
+ }
+ }
+
+ /* Fog coordinates. */
+ if (vs_outputs->fog != ATTR_UNUSED) {
+ assert(tabi < 16);
+ stream_loc[tabi++] = 6 + gen_count;
+ gen_count++;
+ }
+
+ /* WPOS. */
+ if (vs_outputs->wpos != ATTR_UNUSED) {
+ assert(tabi < 16);
+ stream_loc[tabi++] = 6 + gen_count;
+ gen_count++;
+ }
+
+ for (; tabi < 16;) {
+ stream_loc[tabi++] = -1;
+ }
+}
+
+static void set_vertex_inputs_outputs(struct r300_vertex_program_compiler * c)
+{
+ struct r300_vertex_shader * vs = c->UserData;
+ struct r300_shader_semantics* outputs = &vs->outputs;
+ struct tgsi_shader_info* info = &vs->info;
+ int i, reg = 0;
+ boolean any_bcolor_used = outputs->bcolor[0] != ATTR_UNUSED ||
+ outputs->bcolor[1] != ATTR_UNUSED;
+
+ /* Fill in the input mapping */
+ for (i = 0; i < info->num_inputs; i++)
+ c->code->inputs[i] = i;
+
+ /* Position. */
+ if (outputs->pos != ATTR_UNUSED) {
+ c->code->outputs[outputs->pos] = reg++;
+ } else {
+ assert(0);
+ }
+
+ /* Point size. */
+ if (outputs->psize != ATTR_UNUSED) {
+ c->code->outputs[outputs->psize] = reg++;
+ }
+
+ /* If we're writing back facing colors we need to send
+ * four colors to make front/back face colors selection work.
+ * If the vertex program doesn't write all 4 colors, lets
+ * pretend it does by skipping output index reg so the colors
+ * get written into appropriate output vectors.
+ */
+
+ /* Colors. */
+ for (i = 0; i < ATTR_COLOR_COUNT; i++) {
+ if (outputs->color[i] != ATTR_UNUSED) {
+ c->code->outputs[outputs->color[i]] = reg++;
+ } else if (any_bcolor_used ||
+ outputs->color[1] != ATTR_UNUSED) {
+ reg++;
+ }
+ }
+
+ /* Back-face colors. */
+ for (i = 0; i < ATTR_COLOR_COUNT; i++) {
+ if (outputs->bcolor[i] != ATTR_UNUSED) {
+ c->code->outputs[outputs->bcolor[i]] = reg++;
+ } else if (any_bcolor_used) {
+ reg++;
+ }
+ }
+
+ /* Texture coordinates. */
+ for (i = 0; i < ATTR_GENERIC_COUNT; i++) {
+ if (outputs->generic[i] != ATTR_UNUSED) {
+ c->code->outputs[outputs->generic[i]] = reg++;
+ }
+ }
+
+ /* Fog coordinates. */
+ if (outputs->fog != ATTR_UNUSED) {
+ c->code->outputs[outputs->fog] = reg++;
+ }
+
+ /* WPOS. */
+ if (outputs->wpos != ATTR_UNUSED) {
+ c->code->outputs[outputs->wpos] = reg++;
+ }
+}
+
+static void r300_insert_wpos(struct r300_vertex_program_compiler* c,
+ struct r300_shader_semantics* outputs)
+{
+ int i, lastOutput = 0;
+
+ /* Find the max output index. */
+ lastOutput = MAX2(lastOutput, outputs->psize);
+ for (i = 0; i < ATTR_COLOR_COUNT; i++) {
+ lastOutput = MAX2(lastOutput, outputs->color[i]);
+ lastOutput = MAX2(lastOutput, outputs->bcolor[i]);
+ }
+ for (i = 0; i < ATTR_GENERIC_COUNT; i++) {
+ lastOutput = MAX2(lastOutput, outputs->generic[i]);
+ }
+ lastOutput = MAX2(lastOutput, outputs->fog);
+
+ /* Set WPOS after the last output. */
+ lastOutput++;
+ rc_copy_output(&c->Base, 0, lastOutput); /* out[lastOutput] = out[0]; */
+ outputs->wpos = lastOutput;
+}
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;
+ /* Initialize. */
+ r300_shader_read_vs_outputs(&vs->info, &vs->outputs);
+
/* Setup the compiler */
rc_init(&compiler.Base);
r300_tgsi_to_rc(&ttr, vs->state.tokens);
- compiler.RequiredOutputs = ~(~0 << vs->info.num_outputs);
+ compiler.RequiredOutputs = ~(~0 << (vs->info.num_outputs+1));
compiler.SetHwInputOutput = &set_vertex_inputs_outputs;
+ /* Insert the WPOS output. */
+ r300_insert_wpos(&compiler, &vs->outputs);
+
+ r300_shader_vap_output_fmt(vs);
+ r300_stream_locations_notcl(&vs->outputs, vs->stream_loc_notcl);
+
/* Invoke the compiler */
r3xx_compile_vertex_program(&compiler);
if (compiler.Base.Error) {
- /* Todo: Fail gracefully */
+ /* XXX We should fallback using Draw. */
fprintf(stderr, "r300 VP: Compiler error\n");
abort();
}
rc_destroy(&compiler.Base);
vs->translated = TRUE;
}
+
+boolean r300_vertex_shader_setup_wpos(struct r300_context* r300)
+{
+ struct r300_vertex_shader* vs = r300->vs;
+ int tex_output = r300->vs->wpos_tex_output;
+ uint32_t tex_fmt = R300_INPUT_CNTL_TC0 << tex_output;
+ uint32_t* hwfmt = vs->hwfmt;
+
+ if (r300->fs->inputs.wpos != ATTR_UNUSED) {
+ /* Enable WPOS in VAP. */
+ if (!(hwfmt[1] & tex_fmt)) {
+ hwfmt[1] |= tex_fmt;
+ hwfmt[3] |= (4 << (3 * tex_output));
+
+ assert(tex_output < 8);
+ return TRUE;
+ }
+ } else {
+ /* Disable WPOS in VAP. */
+ if (hwfmt[1] & tex_fmt) {
+ hwfmt[1] &= ~tex_fmt;
+ hwfmt[3] &= ~(4 << (3 * tex_output));
+ return TRUE;
+ }
+ }
+ return FALSE;
+}
projects / mesa.git / blobdiff