/*
* 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"
-static void r300_vs_declare(struct r300_vs_asm* assembler,
- struct tgsi_full_declaration* decl)
-{
- switch (decl->Declaration.File) {
- case TGSI_FILE_INPUT:
- break;
- case TGSI_FILE_OUTPUT:
- switch (decl->Semantic.SemanticName) {
- case TGSI_SEMANTIC_POSITION:
- assembler->tab[decl->DeclarationRange.First] = 0;
- break;
- case TGSI_SEMANTIC_COLOR:
- assembler->tab[decl->DeclarationRange.First] =
- (assembler->point_size ? 1 : 0) +
- assembler->out_colors;
- break;
- case TGSI_SEMANTIC_FOG:
- case TGSI_SEMANTIC_GENERIC:
- /* XXX multiple? */
- assembler->tab[decl->DeclarationRange.First] =
- (assembler->point_size ? 1 : 0) +
- assembler->out_colors +
- assembler->out_texcoords;
- break;
- case TGSI_SEMANTIC_PSIZE:
- assembler->tab[decl->DeclarationRange.First] = 1;
- break;
- default:
- debug_printf("r300: vs: Bad semantic declaration %d\n",
- decl->Semantic.SemanticName);
- break;
- }
- break;
- case TGSI_FILE_CONSTANT:
- break;
- case TGSI_FILE_TEMPORARY:
- assembler->temp_count++;
- break;
- default:
- debug_printf("r300: vs: Bad file %d\n", decl->Declaration.File);
- break;
- }
-}
+#include "r300_context.h"
+#include "r300_screen.h"
+#include "r300_tgsi_to_rc.h"
+#include "r300_reg.h"
-static INLINE unsigned r300_vs_src_type(struct r300_vs_asm* assembler,
- struct tgsi_src_register* src)
-{
- switch (src->File) {
- case TGSI_FILE_NULL:
- case TGSI_FILE_INPUT:
- /* Probably a zero or one swizzle */
- return R300_PVS_SRC_REG_INPUT;
- case TGSI_FILE_TEMPORARY:
- return R300_PVS_SRC_REG_TEMPORARY;
- case TGSI_FILE_CONSTANT:
- case TGSI_FILE_IMMEDIATE:
- return R300_PVS_SRC_REG_CONSTANT;
- default:
- debug_printf("r300: vs: Unimplemented src type %d\n", src->File);
- break;
- }
- return 0;
-}
+#include "tgsi/tgsi_dump.h"
+#include "tgsi/tgsi_parse.h"
+#include "tgsi/tgsi_ureg.h"
-static INLINE unsigned r300_vs_src(struct r300_vs_asm* assembler,
- struct tgsi_src_register* src)
+#include "radeon_compiler.h"
+
+/* 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)
{
- switch (src->File) {
- case TGSI_FILE_NULL:
- case TGSI_FILE_INPUT:
- case TGSI_FILE_TEMPORARY:
- case TGSI_FILE_CONSTANT:
- return src->Index;
- case TGSI_FILE_IMMEDIATE:
- return src->Index + assembler->imm_offset;
- default:
- debug_printf("r300: vs: Unimplemented src type %d\n", src->File);
- break;
+ int i;
+ unsigned index;
+
+ r300_shader_semantics_reset(vs_outputs);
+
+ 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:
+ assert(index == 0);
+ vs_outputs->psize = i;
+ break;
+
+ case TGSI_SEMANTIC_COLOR:
+ assert(index < ATTR_COLOR_COUNT);
+ vs_outputs->color[index] = i;
+ break;
+
+ case TGSI_SEMANTIC_BCOLOR:
+ assert(index < ATTR_COLOR_COUNT);
+ vs_outputs->bcolor[index] = i;
+ break;
+
+ case TGSI_SEMANTIC_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]);
+ }
}
- return 0;
+
+ /* WPOS is a straight copy of POSITION and it's always emitted. */
+ vs_outputs->wpos = i;
}
-static INLINE unsigned r300_vs_dst_type(struct r300_vs_asm* assembler,
- struct tgsi_dst_register* dst)
+static void set_vertex_inputs_outputs(struct r300_vertex_program_compiler * c)
{
- switch (dst->File) {
- case TGSI_FILE_TEMPORARY:
- return R300_PVS_DST_REG_TEMPORARY;
- case TGSI_FILE_OUTPUT:
- return R300_PVS_DST_REG_OUT;
- default:
- debug_printf("r300: vs: Unimplemented dst type %d\n", dst->File);
- break;
+ 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);
}
- return 0;
-}
-static INLINE unsigned r300_vs_dst(struct r300_vs_asm* assembler,
- struct tgsi_dst_register* dst)
-{
- switch (dst->File) {
- case TGSI_FILE_TEMPORARY:
- return dst->Index;
- case TGSI_FILE_OUTPUT:
- return assembler->tab[dst->Index];
- default:
- debug_printf("r300: vs: Unimplemented dst %d\n", dst->File);
- break;
+ /* Point size. */
+ if (outputs->psize != ATTR_UNUSED) {
+ c->code->outputs[outputs->psize] = reg++;
}
- return 0;
-}
-static uint32_t r300_vs_op(unsigned op)
-{
- switch (op) {
- case TGSI_OPCODE_DP3:
- case TGSI_OPCODE_DP4:
- return R300_VE_DOT_PRODUCT;
- case TGSI_OPCODE_MUL:
- return R300_VE_MULTIPLY;
- case TGSI_OPCODE_ADD:
- case TGSI_OPCODE_MOV:
- case TGSI_OPCODE_SUB:
- case TGSI_OPCODE_SWZ:
- return R300_VE_ADD;
- case TGSI_OPCODE_MAX:
- return R300_VE_MAXIMUM;
- case TGSI_OPCODE_SLT:
- return R300_VE_SET_LESS_THAN;
- case TGSI_OPCODE_RSQ:
- return R300_PVS_DST_MATH_INST | R300_ME_RECIP_DX;
- case TGSI_OPCODE_MAD:
- return R300_PVS_DST_MACRO_INST | R300_PVS_MACRO_OP_2CLK_MADD;
- default:
- break;
+ /* 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++;
+ }
}
- return 0;
-}
-static uint32_t r300_vs_swiz(struct tgsi_full_src_register* reg)
-{
- if (reg->SrcRegister.Extended) {
- return (reg->SrcRegister.Negate ? (0xf << 12) : 0) |
- reg->SrcRegisterExtSwz.ExtSwizzleX |
- (reg->SrcRegisterExtSwz.ExtSwizzleY << 3) |
- (reg->SrcRegisterExtSwz.ExtSwizzleZ << 6) |
- (reg->SrcRegisterExtSwz.ExtSwizzleW << 9);
- } else {
- return (reg->SrcRegister.Negate ? (0xf << 12) : 0) |
- reg->SrcRegister.SwizzleX |
- (reg->SrcRegister.SwizzleY << 3) |
- (reg->SrcRegister.SwizzleZ << 6) |
- (reg->SrcRegister.SwizzleW << 9);
+ /* 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++;
+ }
}
-}
-/* XXX icky icky icky icky */
-static uint32_t r300_vs_scalar_swiz(struct tgsi_full_src_register* reg)
-{
- if (reg->SrcRegister.Extended) {
- return (reg->SrcRegister.Negate ? (0xf << 12) : 0) |
- reg->SrcRegisterExtSwz.ExtSwizzleX |
- (reg->SrcRegisterExtSwz.ExtSwizzleX << 3) |
- (reg->SrcRegisterExtSwz.ExtSwizzleX << 6) |
- (reg->SrcRegisterExtSwz.ExtSwizzleX << 9);
- } else {
- return (reg->SrcRegister.Negate ? (0xf << 12) : 0) |
- reg->SrcRegister.SwizzleX |
- (reg->SrcRegister.SwizzleX << 3) |
- (reg->SrcRegister.SwizzleX << 6) |
- (reg->SrcRegister.SwizzleX << 9);
+ /* Texture coordinates. */
+ for (i = 0; i < ATTR_GENERIC_COUNT; i++) {
+ if (outputs->generic[i] != ATTR_UNUSED) {
+ c->code->outputs[outputs->generic[i]] = reg++;
+ }
}
-}
-/* XXX scalar stupidity */
-static void r300_vs_emit_inst(struct r300_vertex_shader* vs,
- struct r300_vs_asm* assembler,
- struct tgsi_full_src_register* src,
- struct tgsi_full_dst_register* dst,
- unsigned op,
- unsigned count,
- boolean is_scalar)
-{
- int i = vs->instruction_count;
- vs->instructions[i].inst0 = R300_PVS_DST_OPCODE(r300_vs_op(op)) |
- R300_PVS_DST_REG_TYPE(r300_vs_dst_type(assembler, &dst->DstRegister)) |
- R300_PVS_DST_OFFSET(r300_vs_dst(assembler, &dst->DstRegister)) |
- R300_PVS_DST_WE(dst->DstRegister.WriteMask);
- switch (count) {
- case 3:
- vs->instructions[i].inst3 =
- R300_PVS_SRC_REG_TYPE(r300_vs_src_type(assembler,
- &src[2].SrcRegister)) |
- R300_PVS_SRC_OFFSET(r300_vs_src(assembler,
- &src[2].SrcRegister)) |
- R300_PVS_SRC_SWIZZLE(r300_vs_swiz(&src[2]));
- /* Fall through */
- case 2:
- vs->instructions[i].inst2 =
- R300_PVS_SRC_REG_TYPE(r300_vs_src_type(assembler,
- &src[1].SrcRegister)) |
- R300_PVS_SRC_OFFSET(r300_vs_src(assembler,
- &src[1].SrcRegister)) |
- R300_PVS_SRC_SWIZZLE(r300_vs_swiz(&src[1]));
- /* Fall through */
- case 1:
- vs->instructions[i].inst1 =
- R300_PVS_SRC_REG_TYPE(r300_vs_src_type(assembler,
- &src[0].SrcRegister)) |
- R300_PVS_SRC_OFFSET(r300_vs_src(assembler,
- &src[0].SrcRegister)) |
- /* XXX the icky, it burns */
- R300_PVS_SRC_SWIZZLE(is_scalar ? r300_vs_scalar_swiz(&src[0])
- : r300_vs_swiz(&src[0]));
- break;
+ /* Fog coordinates. */
+ if (outputs->fog != ATTR_UNUSED) {
+ c->code->outputs[outputs->fog] = reg++;
}
- vs->instruction_count++;
+
+ /* WPOS. */
+ c->code->outputs[outputs->wpos] = reg++;
}
-static void r300_vs_instruction(struct r300_vertex_shader* vs,
- struct r300_vs_asm* assembler,
- struct tgsi_full_instruction* inst)
+void r300_init_vs_outputs(struct r300_vertex_shader *vs)
{
- switch (inst->Instruction.Opcode) {
- case TGSI_OPCODE_RSQ:
- r300_vs_emit_inst(vs, assembler, inst->FullSrcRegisters,
- &inst->FullDstRegisters[0], inst->Instruction.Opcode,
- 1, TRUE);
- break;
- case TGSI_OPCODE_SUB:
- inst->FullSrcRegisters[1].SrcRegister.Negate =
- !inst->FullSrcRegisters[1].SrcRegister.Negate;
- /* Fall through */
- case TGSI_OPCODE_ADD:
- case TGSI_OPCODE_MUL:
- case TGSI_OPCODE_MAX:
- case TGSI_OPCODE_SLT:
- r300_vs_emit_inst(vs, assembler, inst->FullSrcRegisters,
- &inst->FullDstRegisters[0], inst->Instruction.Opcode,
- 2, FALSE);
- break;
- case TGSI_OPCODE_DP3:
- /* Set alpha swizzle to zero for src0 and src1 */
- if (!inst->FullSrcRegisters[0].SrcRegister.Extended) {
- inst->FullSrcRegisters[0].SrcRegister.Extended = TRUE;
- inst->FullSrcRegisters[0].SrcRegisterExtSwz.ExtSwizzleX =
- inst->FullSrcRegisters[0].SrcRegister.SwizzleX;
- inst->FullSrcRegisters[0].SrcRegisterExtSwz.ExtSwizzleY =
- inst->FullSrcRegisters[0].SrcRegister.SwizzleY;
- inst->FullSrcRegisters[0].SrcRegisterExtSwz.ExtSwizzleZ =
- inst->FullSrcRegisters[0].SrcRegister.SwizzleZ;
- }
- inst->FullSrcRegisters[0].SrcRegisterExtSwz.ExtSwizzleW =
- TGSI_EXTSWIZZLE_ZERO;
- if (!inst->FullSrcRegisters[1].SrcRegister.Extended) {
- inst->FullSrcRegisters[1].SrcRegister.Extended = TRUE;
- inst->FullSrcRegisters[1].SrcRegisterExtSwz.ExtSwizzleX =
- inst->FullSrcRegisters[1].SrcRegister.SwizzleX;
- inst->FullSrcRegisters[1].SrcRegisterExtSwz.ExtSwizzleY =
- inst->FullSrcRegisters[1].SrcRegister.SwizzleY;
- inst->FullSrcRegisters[1].SrcRegisterExtSwz.ExtSwizzleZ =
- inst->FullSrcRegisters[1].SrcRegister.SwizzleZ;
- }
- inst->FullSrcRegisters[1].SrcRegisterExtSwz.ExtSwizzleW =
- TGSI_EXTSWIZZLE_ZERO;
- /* Fall through */
- case TGSI_OPCODE_DP4:
- r300_vs_emit_inst(vs, assembler, inst->FullSrcRegisters,
- &inst->FullDstRegisters[0], inst->Instruction.Opcode,
- 2, FALSE);
- break;
- case TGSI_OPCODE_MOV:
- case TGSI_OPCODE_SWZ:
- inst->FullSrcRegisters[1] = r300_constant_zero;
- r300_vs_emit_inst(vs, assembler, inst->FullSrcRegisters,
- &inst->FullDstRegisters[0], inst->Instruction.Opcode,
- 2, FALSE);
- break;
- case TGSI_OPCODE_MAD:
- r300_vs_emit_inst(vs, assembler, inst->FullSrcRegisters,
- &inst->FullDstRegisters[0], inst->Instruction.Opcode,
- 3, FALSE);
- break;
- case TGSI_OPCODE_END:
- break;
- default:
- debug_printf("r300: vs: Bad opcode %d\n",
- inst->Instruction.Opcode);
- break;
- }
+ tgsi_scan_shader(vs->state.tokens, &vs->info);
+ r300_shader_read_vs_outputs(&vs->info, &vs->outputs);
}
-static void r300_vs_init(struct r300_vertex_shader* vs,
- struct r300_vs_asm* assembler)
+static void r300_dummy_vertex_shader(
+ struct r300_context* r300,
+ struct r300_vertex_shader* shader)
{
- struct tgsi_shader_info* info = &vs->info;
- int i;
+ struct ureg_program *ureg;
+ struct ureg_dst dst;
+ struct ureg_src imm;
- for (i = 0; i < info->num_outputs; i++) {
- switch (info->output_semantic_name[i]) {
- case TGSI_SEMANTIC_PSIZE:
- assembler->point_size = TRUE;
- break;
- case TGSI_SEMANTIC_COLOR:
- assembler->out_colors++;
- break;
- case TGSI_SEMANTIC_FOG:
- case TGSI_SEMANTIC_GENERIC:
- assembler->out_texcoords++;
- break;
- }
- }
+ /* 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);
- vs->instruction_count = 0;
+ 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 tgsi_parse_context parser;
- int i;
- struct r300_constant_buffer* consts =
- &r300->shader_constants[PIPE_SHADER_VERTEX];
+ struct r300_vertex_program_compiler compiler;
+ struct tgsi_to_rc ttr;
- struct r300_vs_asm* assembler = CALLOC_STRUCT(r300_vs_asm);
- if (assembler == NULL) {
- return;
- }
+ /* Setup the compiler */
+ rc_init(&compiler.Base);
- /* Init assembler. */
- r300_vs_init(vs, assembler);
+ 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;
- /* Setup starting offset for immediates. */
- assembler->imm_offset = consts->user_count;
+ if (compiler.Base.Debug) {
+ debug_printf("r300: Initial vertex program\n");
+ tgsi_dump(vs->state.tokens, 0);
+ }
- tgsi_parse_init(&parser, vs->state.tokens);
+ /* Translate TGSI to our internal representation */
+ ttr.compiler = &compiler.Base;
+ ttr.info = &vs->info;
+ ttr.use_half_swizzles = FALSE;
- while (!tgsi_parse_end_of_tokens(&parser)) {
- tgsi_parse_token(&parser);
+ r300_tgsi_to_rc(&ttr, vs->state.tokens);
- /* This is seriously the lamest way to create fragment programs ever.
- * I blame TGSI. */
- switch (parser.FullToken.Token.Type) {
- case TGSI_TOKEN_TYPE_DECLARATION:
- /* Allocated registers sitting at the beginning
- * of the program. */
- r300_vs_declare(assembler, &parser.FullToken.FullDeclaration);
- break;
- case TGSI_TOKEN_TYPE_IMMEDIATE:
- debug_printf("r300: Emitting immediate to constant buffer, "
- "position %d\n",
- assembler->imm_offset + assembler->imm_count);
- /* I am not amused by the length of these. */
- for (i = 0; i < 4; i++) {
- consts->constants[assembler->imm_offset +
- assembler->imm_count][i] =
- parser.FullToken.FullImmediate.u.ImmediateFloat32[i]
- .Float;
- }
- assembler->imm_count++;
- break;
- case TGSI_TOKEN_TYPE_INSTRUCTION:
- r300_vs_instruction(vs, assembler,
- &parser.FullToken.FullInstruction);
- break;
- }
- }
+ 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);
- debug_printf("r300: vs: %d texs and %d colors, first free reg is %d\n",
- assembler->tex_count, assembler->color_count,
- assembler->tex_count + assembler->color_count);
+ /* Invoke the compiler */
+ r3xx_compile_vertex_program(&compiler);
+ if (compiler.Base.Error) {
+ /* 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);
- consts->count = consts->user_count + assembler->imm_count;
- vs->uses_imms = assembler->imm_count;
- debug_printf("r300: vs: %d total constants, "
- "%d from user and %d from immediates\n", consts->count,
- consts->user_count, assembler->imm_count);
+ if (vs->dummy) {
+ fprintf(stderr, "r300 VP: Cannot compile the dummy shader! "
+ "Giving up...\n");
+ abort();
+ }
- debug_printf("r300: vs: tab: %d %d %d %d\n", assembler->tab[0],
- assembler->tab[1], assembler->tab[2], assembler->tab[3]);
+ rc_destroy(&compiler.Base);
+ r300_dummy_vertex_shader(r300, vs);
+ return;
+ }
- tgsi_dump(vs->state.tokens, 0);
- /* XXX finish r300 vertex shader dumper */
- r300_vs_dump(vs);
+ /* Initialize numbers of constants for each type. */
+ vs->externals_count = ttr.immediate_offset;
+ vs->immediates_count = vs->code.constants.Count - vs->externals_count;
- tgsi_parse_free(&parser);
- FREE(assembler);
+ /* And, finally... */
+ rc_destroy(&compiler.Base);
}
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