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gallium: use new simple shader utility routines
This commit is contained in:
Brian
parent
31970c4633
commit
4bd2b74441
1 changed files with 12 additions and 248 deletions
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@ -43,6 +43,7 @@
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#include "util/u_draw_quad.h"
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#include "util/u_gen_mipmap.h"
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#include "util/u_simple_shaders.h"
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#include "tgsi/util/tgsi_build.h"
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#include "tgsi/util/tgsi_dump.h"
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@ -655,252 +656,6 @@ fallback_gen_mipmap(struct gen_mipmap_state *ctx,
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}
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/**
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* Make simple fragment shader:
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* TEX OUT[0], IN[0], SAMP[0], 2D;
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* END;
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*/
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static void
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make_fragment_shader(struct gen_mipmap_state *ctx)
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{
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struct pipe_context *pipe = ctx->pipe;
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uint maxTokens = 100;
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struct tgsi_token *tokens;
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struct tgsi_header *header;
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struct tgsi_processor *processor;
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struct tgsi_full_declaration decl;
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struct tgsi_full_instruction inst;
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const uint procType = TGSI_PROCESSOR_FRAGMENT;
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uint ti = 0;
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struct pipe_shader_state shader;
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tokens = (struct tgsi_token *) malloc(maxTokens * sizeof(tokens[0]));
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/* shader header
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*/
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*(struct tgsi_version *) &tokens[0] = tgsi_build_version();
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header = (struct tgsi_header *) &tokens[1];
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*header = tgsi_build_header();
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processor = (struct tgsi_processor *) &tokens[2];
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*processor = tgsi_build_processor( procType, header );
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ti = 3;
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/* declare TEX[0] input */
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decl = tgsi_default_full_declaration();
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decl.Declaration.File = TGSI_FILE_INPUT;
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decl.Declaration.Semantic = 1;
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decl.Semantic.SemanticName = TGSI_SEMANTIC_GENERIC;
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decl.Semantic.SemanticIndex = 0;
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/* XXX this could be linear... */
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decl.Declaration.Interpolate = 1;
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decl.Interpolation.Interpolate = TGSI_INTERPOLATE_PERSPECTIVE;
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decl.u.DeclarationRange.First =
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decl.u.DeclarationRange.Last = 0;
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ti += tgsi_build_full_declaration(&decl,
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&tokens[ti],
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header,
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maxTokens - ti);
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/* declare color[0] output */
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decl = tgsi_default_full_declaration();
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decl.Declaration.File = TGSI_FILE_OUTPUT;
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decl.Declaration.Semantic = 1;
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decl.Semantic.SemanticName = TGSI_SEMANTIC_COLOR;
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decl.Semantic.SemanticIndex = 0;
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decl.u.DeclarationRange.First =
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decl.u.DeclarationRange.Last = 0;
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ti += tgsi_build_full_declaration(&decl,
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&tokens[ti],
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header,
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maxTokens - ti);
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/* declare sampler */
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decl = tgsi_default_full_declaration();
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decl.Declaration.File = TGSI_FILE_SAMPLER;
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decl.u.DeclarationRange.First =
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decl.u.DeclarationRange.Last = 0;
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ti += tgsi_build_full_declaration(&decl,
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&tokens[ti],
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header,
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maxTokens - ti);
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/* TEX instruction */
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inst = tgsi_default_full_instruction();
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inst.Instruction.Opcode = TGSI_OPCODE_TEX;
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inst.Instruction.NumDstRegs = 1;
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inst.FullDstRegisters[0].DstRegister.File = TGSI_FILE_OUTPUT;
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inst.FullDstRegisters[0].DstRegister.Index = 0;
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inst.Instruction.NumSrcRegs = 2;
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inst.InstructionExtTexture.Texture = TGSI_TEXTURE_2D;
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inst.FullSrcRegisters[0].SrcRegister.File = TGSI_FILE_INPUT;
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inst.FullSrcRegisters[0].SrcRegister.Index = 0;
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inst.FullSrcRegisters[1].SrcRegister.File = TGSI_FILE_SAMPLER;
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inst.FullSrcRegisters[1].SrcRegister.Index = 0;
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ti += tgsi_build_full_instruction(&inst,
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&tokens[ti],
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header,
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maxTokens - ti );
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/* END instruction */
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inst = tgsi_default_full_instruction();
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inst.Instruction.Opcode = TGSI_OPCODE_END;
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inst.Instruction.NumDstRegs = 0;
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inst.Instruction.NumSrcRegs = 0;
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ti += tgsi_build_full_instruction(&inst,
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&tokens[ti],
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header,
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maxTokens - ti );
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#if 0 /*debug*/
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tgsi_dump(tokens, 0);
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#endif
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shader.tokens = tokens;
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ctx->fs = pipe->create_fs_state(pipe, &shader);
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}
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/**
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* Make simple fragment shader:
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* MOV OUT[0], IN[0];
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* MOV OUT[1], IN[1];
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* END;
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*
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* XXX eliminate this when vertex passthrough-mode is more solid.
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*/
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static void
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make_vertex_shader(struct gen_mipmap_state *ctx)
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{
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struct pipe_context *pipe = ctx->pipe;
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uint maxTokens = 100;
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struct tgsi_token *tokens;
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struct tgsi_header *header;
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struct tgsi_processor *processor;
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struct tgsi_full_declaration decl;
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struct tgsi_full_instruction inst;
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const uint procType = TGSI_PROCESSOR_VERTEX;
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uint ti = 0;
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struct pipe_shader_state shader;
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tokens = (struct tgsi_token *) malloc(maxTokens * sizeof(tokens[0]));
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/* shader header
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*/
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*(struct tgsi_version *) &tokens[0] = tgsi_build_version();
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header = (struct tgsi_header *) &tokens[1];
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*header = tgsi_build_header();
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processor = (struct tgsi_processor *) &tokens[2];
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*processor = tgsi_build_processor( procType, header );
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ti = 3;
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/* declare POS input */
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decl = tgsi_default_full_declaration();
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decl.Declaration.File = TGSI_FILE_INPUT;
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/*
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decl.Declaration.Semantic = 1;
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decl.Semantic.SemanticName = TGSI_SEMANTIC_POSITION;
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decl.Semantic.SemanticIndex = 0;
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*/
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decl.u.DeclarationRange.First =
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decl.u.DeclarationRange.Last = 0;
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ti += tgsi_build_full_declaration(&decl,
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&tokens[ti],
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header,
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maxTokens - ti);
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/* declare TEX[0] input */
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decl = tgsi_default_full_declaration();
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decl.Declaration.File = TGSI_FILE_INPUT;
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/*
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decl.Declaration.Semantic = 1;
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decl.Semantic.SemanticName = TGSI_SEMANTIC_GENERIC;
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decl.Semantic.SemanticIndex = 0;
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*/
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decl.u.DeclarationRange.First =
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decl.u.DeclarationRange.Last = 1;
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ti += tgsi_build_full_declaration(&decl,
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&tokens[ti],
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header,
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maxTokens - ti);
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/* declare POS output */
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decl = tgsi_default_full_declaration();
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decl.Declaration.File = TGSI_FILE_OUTPUT;
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decl.Declaration.Semantic = 1;
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decl.Semantic.SemanticName = TGSI_SEMANTIC_POSITION;
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decl.Semantic.SemanticIndex = 0;
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decl.u.DeclarationRange.First =
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decl.u.DeclarationRange.Last = 0;
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ti += tgsi_build_full_declaration(&decl,
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&tokens[ti],
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header,
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maxTokens - ti);
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/* declare TEX[0] output */
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decl = tgsi_default_full_declaration();
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decl.Declaration.File = TGSI_FILE_OUTPUT;
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decl.Declaration.Semantic = 1;
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decl.Semantic.SemanticName = TGSI_SEMANTIC_GENERIC;
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decl.Semantic.SemanticIndex = 0;
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decl.u.DeclarationRange.First =
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decl.u.DeclarationRange.Last = 1;
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ti += tgsi_build_full_declaration(&decl,
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&tokens[ti],
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header,
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maxTokens - ti);
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/* MOVE out[0], in[0]; # POS */
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inst = tgsi_default_full_instruction();
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inst.Instruction.Opcode = TGSI_OPCODE_MOV;
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inst.Instruction.NumDstRegs = 1;
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inst.FullDstRegisters[0].DstRegister.File = TGSI_FILE_OUTPUT;
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inst.FullDstRegisters[0].DstRegister.Index = 0;
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inst.Instruction.NumSrcRegs = 1;
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inst.FullSrcRegisters[0].SrcRegister.File = TGSI_FILE_INPUT;
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inst.FullSrcRegisters[0].SrcRegister.Index = 0;
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ti += tgsi_build_full_instruction(&inst,
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&tokens[ti],
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header,
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maxTokens - ti );
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/* MOVE out[1], in[1]; # TEX */
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inst = tgsi_default_full_instruction();
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inst.Instruction.Opcode = TGSI_OPCODE_MOV;
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inst.Instruction.NumDstRegs = 1;
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inst.FullDstRegisters[0].DstRegister.File = TGSI_FILE_OUTPUT;
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inst.FullDstRegisters[0].DstRegister.Index = 1;
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inst.Instruction.NumSrcRegs = 1;
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inst.FullSrcRegisters[0].SrcRegister.File = TGSI_FILE_INPUT;
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inst.FullSrcRegisters[0].SrcRegister.Index = 1;
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ti += tgsi_build_full_instruction(&inst,
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&tokens[ti],
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header,
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maxTokens - ti );
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/* END instruction */
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inst = tgsi_default_full_instruction();
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inst.Instruction.Opcode = TGSI_OPCODE_END;
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inst.Instruction.NumDstRegs = 0;
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inst.Instruction.NumSrcRegs = 0;
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ti += tgsi_build_full_instruction(&inst,
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&tokens[ti],
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header,
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maxTokens - ti );
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#if 0 /*debug*/
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tgsi_dump(tokens, 0);
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#endif
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shader.tokens = tokens;
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ctx->vs = pipe->create_vs_state(pipe, &shader);
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}
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/**
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* Create a mipmap generation context.
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* The idea is to create one of these and re-use it each time we need to
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@ -953,8 +708,17 @@ util_create_gen_mipmap(struct pipe_context *pipe)
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ctx->viewport.translate[3] = 0.0;
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#endif
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make_vertex_shader(ctx);
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make_fragment_shader(ctx);
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/* vertex shader */
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{
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const uint semantic_names[] = { TGSI_SEMANTIC_POSITION,
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TGSI_SEMANTIC_GENERIC };
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const uint semantic_indexes[] = { 0, 0 };
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ctx->vs = util_make_vertex_passthrough_shader(pipe, 2, semantic_names,
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semantic_indexes);
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}
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/* fragment shader */
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ctx->fs = util_make_fragment_tex_shader(pipe);
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return ctx;
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}
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