/*
* 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"),
#include "r300_vs.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 "tgsi/tgsi_ureg.h"
#include "radeon_compiler.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;
- 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");
+ break;
+
+ default:
+ fprintf(stderr, "r300 VP: unknown vertex output semantic: %i.\n",
+ info->output_semantic_name[i]);
}
}
- struct tgsi_parse_context parser;
+ /* WPOS is a straight copy of POSITION and it's always emitted. */
+ vs_outputs->wpos = i;
+}
- tgsi_parse_init(&parser, vs->state.tokens);
+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;
- while (!tgsi_parse_end_of_tokens(&parser)) {
- tgsi_parse_token(&parser);
+ /* Fill in the input mapping */
+ for (i = 0; i < info->num_inputs; i++)
+ c->code->inputs[i] = i;
- if (parser.FullToken.Token.Type != TGSI_TOKEN_TYPE_DECLARATION)
- continue;
+ /* Position. */
+ if (outputs->pos != ATTR_UNUSED) {
+ c->code->outputs[outputs->pos] = reg++;
+ } else {
+ assert(0);
+ }
- struct tgsi_full_declaration * decl = &parser.FullToken.FullDeclaration;
+ /* Point size. */
+ if (outputs->psize != ATTR_UNUSED) {
+ c->code->outputs[outputs->psize] = reg++;
+ }
- if (decl->Declaration.File != TGSI_FILE_OUTPUT)
- continue;
+ /* 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++;
+ }
+ }
- 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;
+ /* 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++;
}
}
- tgsi_parse_free(&parser);
+ /* Fog coordinates. */
+ if (outputs->fog != ATTR_UNUSED) {
+ c->code->outputs[outputs->fog] = reg++;
+ }
+
+ /* WPOS. */
+ c->code->outputs[outputs->wpos] = reg++;
}
+void r300_init_vs_outputs(struct r300_vertex_shader *vs)
+{
+ tgsi_scan_shader(vs->state.tokens, &vs->info);
+ r300_shader_read_vs_outputs(&vs->info, &vs->outputs);
+}
+
+static void r300_dummy_vertex_shader(
+ struct r300_context* r300,
+ struct r300_vertex_shader* shader)
+{
+ struct ureg_program *ureg;
+ struct ureg_dst dst;
+ struct ureg_src imm;
+
+ /* Make a simple vertex shader which outputs (0, 0, 0, 1),
+ * effectively rendering nothing. */
+ ureg = ureg_create(TGSI_PROCESSOR_VERTEX);
+ dst = ureg_DECL_output(ureg, TGSI_SEMANTIC_POSITION, 0);
+ imm = ureg_imm4f(ureg, 0, 0, 0, 1);
+
+ ureg_MOV(ureg, dst, imm);
+ ureg_END(ureg);
+
+ shader->state.tokens = tgsi_dup_tokens(ureg_finalize(ureg));
+ ureg_destroy(ureg);
+
+ shader->dummy = TRUE;
+ r300_init_vs_outputs(shader);
+ r300_translate_vertex_shader(r300, shader);
+}
-void r300_translate_vertex_shader(struct r300_context* r300,
- struct r300_vertex_shader* vs)
+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 = 1;
+ compiler.Base.Debug = DBG_ON(r300, DBG_VP);
compiler.code = &vs->code;
compiler.UserData = vs;
+ compiler.Base.is_r500 = r300->screen->caps.is_r500;
+ compiler.Base.max_temp_regs = 32;
if (compiler.Base.Debug) {
debug_printf("r300: Initial vertex program\n");
/* Translate TGSI to our internal representation */
ttr.compiler = &compiler.Base;
ttr.info = &vs->info;
+ ttr.use_half_swizzles = FALSE;
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. */
+ rc_copy_output(&compiler.Base, 0, vs->outputs.wpos);
+
/* Invoke the compiler */
r3xx_compile_vertex_program(&compiler);
if (compiler.Base.Error) {
- /* Todo: Fail gracefully */
- fprintf(stderr, "r300 VP: Compiler error\n");
- abort();
+ /* XXX We should fallback using Draw. */
+ fprintf(stderr, "r300 VP: Compiler error:\n%sUsing a dummy shader"
+ " instead.\nIf there's an 'unknown opcode' message, please"
+ " file a bug report and attach this log.\n", compiler.Base.ErrorMsg);
+
+ if (vs->dummy) {
+ fprintf(stderr, "r300 VP: Cannot compile the dummy shader! "
+ "Giving up...\n");
+ abort();
+ }
+
+ rc_destroy(&compiler.Base);
+ r300_dummy_vertex_shader(r300, vs);
+ return;
}
+ /* Initialize numbers of constants for each type. */
+ vs->externals_count = ttr.immediate_offset;
+ vs->immediates_count = vs->code.constants.Count - vs->externals_count;
+
/* And, finally... */
rc_destroy(&compiler.Base);
- vs->translated = TRUE;
}
-
-
-/* XXX get these to r300_reg */
-#define R300_PVS_DST_OPCODE(x) ((x) << 0)
-# define R300_VE_DOT_PRODUCT 1
-# define R300_VE_MULTIPLY 2
-# define R300_VE_ADD 3
-# define R300_VE_MAXIMUM 7
-# define R300_VE_SET_LESS_THAN 10
-#define R300_PVS_DST_MATH_INST (1 << 6)
-# define R300_ME_RECIP_DX 6
-#define R300_PVS_DST_MACRO_INST (1 << 7)
-# define R300_PVS_MACRO_OP_2CLK_MADD 0
-#define R300_PVS_DST_REG_TYPE(x) ((x) << 8)
-# define R300_PVS_DST_REG_TEMPORARY 0
-# define R300_PVS_DST_REG_A0 1
-# define R300_PVS_DST_REG_OUT 2
-# define R300_PVS_DST_REG_OUT_REPL_X 3
-# define R300_PVS_DST_REG_ALT_TEMPORARY 4
-# define R300_PVS_DST_REG_INPUT 5
-#define R300_PVS_DST_OFFSET(x) ((x) << 13)
-#define R300_PVS_DST_WE(x) ((x) << 20)
-#define R300_PVS_DST_WE_XYZW (0xf << 20)
-
-#define R300_PVS_SRC_REG_TYPE(x) ((x) << 0)
-# define R300_PVS_SRC_REG_TEMPORARY 0
-# define R300_PVS_SRC_REG_INPUT 1
-# define R300_PVS_SRC_REG_CONSTANT 2
-# define R300_PVS_SRC_REG_ALT_TEMPORARY 3
-#define R300_PVS_SRC_OFFSET(x) ((x) << 5)
-#define R300_PVS_SRC_SWIZZLE(x) ((x) << 13)
-# define R300_PVS_SRC_SELECT_X 0
-# define R300_PVS_SRC_SELECT_Y 1
-# define R300_PVS_SRC_SELECT_Z 2
-# define R300_PVS_SRC_SELECT_W 3
-# define R300_PVS_SRC_SELECT_FORCE_0 4
-# define R300_PVS_SRC_SELECT_FORCE_1 5
-# define R300_PVS_SRC_SWIZZLE_XYZW \
- ((R300_PVS_SRC_SELECT_X | (R300_PVS_SRC_SELECT_Y << 3) | \
- (R300_PVS_SRC_SELECT_Z << 6) | (R300_PVS_SRC_SELECT_W << 9)) << 13)
-# define R300_PVS_SRC_SWIZZLE_ZERO \
- ((R300_PVS_SRC_SELECT_FORCE_0 | (R300_PVS_SRC_SELECT_FORCE_0 << 3) | \
- (R300_PVS_SRC_SELECT_FORCE_0 << 6) | \
- (R300_PVS_SRC_SELECT_FORCE_0 << 9)) << 13)
-# define R300_PVS_SRC_SWIZZLE_ONE \
- ((R300_PVS_SRC_SELECT_FORCE_1 | (R300_PVS_SRC_SELECT_FORCE_1 << 3) | \
- (R300_PVS_SRC_SELECT_FORCE_1 << 6) | \
- (R300_PVS_SRC_SELECT_FORCE_1 << 9)) << 13)
-#define R300_PVS_MODIFIER_X (1 << 25)
-#define R300_PVS_MODIFIER_Y (1 << 26)
-#define R300_PVS_MODIFIER_Z (1 << 27)
-#define R300_PVS_MODIFIER_W (1 << 28)
-#define R300_PVS_NEGATE_XYZW \
- (R300_PVS_MODIFIER_X | R300_PVS_MODIFIER_Y | \
- R300_PVS_MODIFIER_Z | R300_PVS_MODIFIER_W)
-
-struct r300_vertex_program_code r300_passthrough_vertex_shader = {
- .length = 8, /* two instructions */
-
- /* MOV out[0], in[0] */
- .body.d[0] = R300_PVS_DST_OPCODE(R300_VE_ADD) |
- R300_PVS_DST_REG_TYPE(R300_PVS_DST_REG_OUT) |
- R300_PVS_DST_OFFSET(0) | R300_PVS_DST_WE_XYZW,
- .body.d[1] = R300_PVS_SRC_REG_TYPE(R300_PVS_SRC_REG_INPUT) |
- R300_PVS_SRC_OFFSET(0) | R300_PVS_SRC_SWIZZLE_XYZW,
- .body.d[2] = R300_PVS_SRC_SWIZZLE_ZERO,
- .body.d[3] = 0x0,
-
- /* MOV out[1], in[1] */
- .body.d[4] = R300_PVS_DST_OPCODE(R300_VE_ADD) |
- R300_PVS_DST_REG_TYPE(R300_PVS_DST_REG_OUT) |
- R300_PVS_DST_OFFSET(1) | R300_PVS_DST_WE_XYZW,
- .body.d[5] = R300_PVS_SRC_REG_TYPE(R300_PVS_SRC_REG_INPUT) |
- R300_PVS_SRC_OFFSET(1) | R300_PVS_SRC_SWIZZLE_XYZW,
- .body.d[6] = R300_PVS_SRC_SWIZZLE_ZERO,
- .body.d[7] = 0x0,
-
- .inputs[0] = 0,
- .inputs[1] = 1,
- .outputs[0] = 0,
- .outputs[1] = 1,
-
- .InputsRead = 3,
- .OutputsWritten = 3
-};
-
projects / mesa.git / blobdiff