*
* Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas.
* All Rights Reserved.
+ * 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
* Simple vertex/fragment shader generators.
*
* @author Brian Paul
+ Marek Olšák
*/
#include "pipe/p_context.h"
-#include "pipe/p_debug.h"
-#include "pipe/p_defines.h"
-#include "pipe/p_inlines.h"
-#include "pipe/p_winsys.h"
#include "pipe/p_shader_tokens.h"
-
-#include "util/u_memory.h"
#include "util/u_simple_shaders.h"
-
-#include "tgsi/tgsi_build.h"
-#include "tgsi/tgsi_dump.h"
-#include "tgsi/tgsi_parse.h"
+#include "util/u_debug.h"
+#include "tgsi/tgsi_ureg.h"
/**
* Make simple vertex pass-through shader.
+ * \param num_attribs number of attributes to pass through
+ * \param semantic_names array of semantic names for each attribute
+ * \param semantic_indexes array of semantic indexes for each attribute
*/
void *
util_make_vertex_passthrough_shader(struct pipe_context *pipe,
uint num_attribs,
const uint *semantic_names,
- const uint *semantic_indexes,
- struct pipe_shader_state *shader)
-
+ const uint *semantic_indexes)
{
- uint maxTokens = 100;
- struct tgsi_token *tokens;
- struct tgsi_header *header;
- struct tgsi_processor *processor;
- struct tgsi_full_declaration decl;
- struct tgsi_full_instruction inst;
- const uint procType = TGSI_PROCESSOR_VERTEX;
- uint ti, i;
+ struct ureg_program *ureg;
+ uint i;
- tokens = (struct tgsi_token *) MALLOC(maxTokens * sizeof(tokens[0]));
+ ureg = ureg_create( TGSI_PROCESSOR_VERTEX );
+ if (ureg == NULL)
+ return NULL;
- /* shader header
- */
- *(struct tgsi_version *) &tokens[0] = tgsi_build_version();
+ for (i = 0; i < num_attribs; i++) {
+ struct ureg_src src;
+ struct ureg_dst dst;
+
+ src = ureg_DECL_vs_input( ureg, i );
+
+ dst = ureg_DECL_output( ureg,
+ semantic_names[i],
+ semantic_indexes[i]);
+
+ ureg_MOV( ureg, dst, src );
+ }
- header = (struct tgsi_header *) &tokens[1];
- *header = tgsi_build_header();
+ ureg_END( ureg );
- processor = (struct tgsi_processor *) &tokens[2];
- *processor = tgsi_build_processor( procType, header );
+ return ureg_create_shader_and_destroy( ureg, pipe );
+}
- ti = 3;
- /* declare inputs */
- for (i = 0; i < num_attribs; i++) {
- decl = tgsi_default_full_declaration();
- decl.Declaration.File = TGSI_FILE_INPUT;
-
- decl.Declaration.Semantic = 1;
- decl.Semantic.SemanticName = semantic_names[i];
- decl.Semantic.SemanticIndex = semantic_indexes[i];
-
- decl.DeclarationRange.First =
- decl.DeclarationRange.Last = i;
- ti += tgsi_build_full_declaration(&decl,
- &tokens[ti],
- header,
- maxTokens - ti);
- }
+/**
+ * Make simple fragment texture shader:
+ * IMM {0,0,0,1} // (if writemask != 0xf)
+ * MOV OUT[0], IMM[0] // (if writemask != 0xf)
+ * TEX OUT[0].writemask, IN[0], SAMP[0], 2D;
+ * END;
+ */
+void *
+util_make_fragment_tex_shader_writemask(struct pipe_context *pipe,
+ unsigned tex_target,
+ unsigned writemask )
+{
+ struct ureg_program *ureg;
+ struct ureg_src sampler;
+ struct ureg_src tex;
+ struct ureg_dst out;
- /* declare outputs */
- for (i = 0; i < num_attribs; i++) {
- decl = tgsi_default_full_declaration();
- decl.Declaration.File = TGSI_FILE_OUTPUT;
- decl.Declaration.Semantic = 1;
- decl.Semantic.SemanticName = semantic_names[i];
- decl.Semantic.SemanticIndex = semantic_indexes[i];
- decl.DeclarationRange.First =
- decl.DeclarationRange.Last = i;
- ti += tgsi_build_full_declaration(&decl,
- &tokens[ti],
- header,
- maxTokens - ti);
- }
+ ureg = ureg_create( TGSI_PROCESSOR_FRAGMENT );
+ if (ureg == NULL)
+ return NULL;
+
+ sampler = ureg_DECL_sampler( ureg, 0 );
- /* emit MOV instructions */
- for (i = 0; i < num_attribs; i++) {
- /* MOVE out[i], in[i]; */
- inst = tgsi_default_full_instruction();
- inst.Instruction.Opcode = TGSI_OPCODE_MOV;
- inst.Instruction.NumDstRegs = 1;
- inst.FullDstRegisters[0].DstRegister.File = TGSI_FILE_OUTPUT;
- inst.FullDstRegisters[0].DstRegister.Index = i;
- inst.Instruction.NumSrcRegs = 1;
- inst.FullSrcRegisters[0].SrcRegister.File = TGSI_FILE_INPUT;
- inst.FullSrcRegisters[0].SrcRegister.Index = i;
- ti += tgsi_build_full_instruction(&inst,
- &tokens[ti],
- header,
- maxTokens - ti );
- }
+ tex = ureg_DECL_fs_input( ureg,
+ TGSI_SEMANTIC_GENERIC, 0,
+ TGSI_INTERPOLATE_PERSPECTIVE );
+
+ out = ureg_DECL_output( ureg,
+ TGSI_SEMANTIC_COLOR,
+ 0 );
- /* END instruction */
- inst = tgsi_default_full_instruction();
- inst.Instruction.Opcode = TGSI_OPCODE_END;
- inst.Instruction.NumDstRegs = 0;
- inst.Instruction.NumSrcRegs = 0;
- ti += tgsi_build_full_instruction(&inst,
- &tokens[ti],
- header,
- maxTokens - ti );
+ if (writemask != TGSI_WRITEMASK_XYZW) {
+ struct ureg_src imm = ureg_imm4f( ureg, 0, 0, 0, 1 );
-#if 0 /*debug*/
- tgsi_dump(tokens, 0);
-#endif
+ ureg_MOV( ureg, out, imm );
+ }
- shader->tokens = tokens;
- /*shader->num_tokens = ti;*/
+ ureg_TEX( ureg,
+ ureg_writemask(out, writemask),
+ tex_target, tex, sampler );
+ ureg_END( ureg );
- return pipe->create_vs_state(pipe, shader);
+ return ureg_create_shader_and_destroy( ureg, pipe );
}
+/**
+ * Make a simple fragment shader that sets the output color to a color
+ * taken from a texture.
+ * \param tex_target one of PIPE_TEXTURE_x
+ */
+void *
+util_make_fragment_tex_shader(struct pipe_context *pipe, unsigned tex_target )
+{
+ return util_make_fragment_tex_shader_writemask( pipe,
+ tex_target,
+ TGSI_WRITEMASK_XYZW );
+}
/**
- * Make simple fragment texture shader:
- * TEX OUT[0], IN[0], SAMP[0], 2D;
- * END;
+ * Make a simple fragment texture shader which reads an X component from
+ * a texture and writes it as depth.
*/
void *
-util_make_fragment_tex_shader(struct pipe_context *pipe,
- struct pipe_shader_state *shader)
+util_make_fragment_tex_shader_writedepth(struct pipe_context *pipe,
+ unsigned tex_target)
{
- uint maxTokens = 100;
- struct tgsi_token *tokens;
- struct tgsi_header *header;
- struct tgsi_processor *processor;
- struct tgsi_full_declaration decl;
- struct tgsi_full_instruction inst;
- const uint procType = TGSI_PROCESSOR_FRAGMENT;
- uint ti;
-
- tokens = (struct tgsi_token *) MALLOC(maxTokens * sizeof(tokens[0]));
-
- /* shader header
- */
- *(struct tgsi_version *) &tokens[0] = tgsi_build_version();
-
- header = (struct tgsi_header *) &tokens[1];
- *header = tgsi_build_header();
-
- processor = (struct tgsi_processor *) &tokens[2];
- *processor = tgsi_build_processor( procType, header );
-
- ti = 3;
-
- /* declare TEX[0] input */
- decl = tgsi_default_full_declaration();
- decl.Declaration.File = TGSI_FILE_INPUT;
- /* XXX this could be linear... */
- decl.Declaration.Interpolate = TGSI_INTERPOLATE_PERSPECTIVE;
- decl.Declaration.Semantic = 1;
- decl.Semantic.SemanticName = TGSI_SEMANTIC_GENERIC;
- decl.Semantic.SemanticIndex = 0;
- decl.DeclarationRange.First =
- decl.DeclarationRange.Last = 0;
- ti += tgsi_build_full_declaration(&decl,
- &tokens[ti],
- header,
- maxTokens - ti);
-
- /* declare color[0] output */
- decl = tgsi_default_full_declaration();
- decl.Declaration.File = TGSI_FILE_OUTPUT;
- decl.Declaration.Semantic = 1;
- decl.Semantic.SemanticName = TGSI_SEMANTIC_COLOR;
- decl.Semantic.SemanticIndex = 0;
- decl.DeclarationRange.First =
- decl.DeclarationRange.Last = 0;
- ti += tgsi_build_full_declaration(&decl,
- &tokens[ti],
- header,
- maxTokens - ti);
-
- /* declare sampler */
- decl = tgsi_default_full_declaration();
- decl.Declaration.File = TGSI_FILE_SAMPLER;
- decl.DeclarationRange.First =
- decl.DeclarationRange.Last = 0;
- ti += tgsi_build_full_declaration(&decl,
- &tokens[ti],
- header,
- maxTokens - ti);
-
- /* TEX instruction */
- inst = tgsi_default_full_instruction();
- inst.Instruction.Opcode = TGSI_OPCODE_TEX;
- inst.Instruction.NumDstRegs = 1;
- inst.FullDstRegisters[0].DstRegister.File = TGSI_FILE_OUTPUT;
- inst.FullDstRegisters[0].DstRegister.Index = 0;
- inst.Instruction.NumSrcRegs = 2;
- inst.InstructionExtTexture.Texture = TGSI_TEXTURE_2D;
- inst.FullSrcRegisters[0].SrcRegister.File = TGSI_FILE_INPUT;
- inst.FullSrcRegisters[0].SrcRegister.Index = 0;
- inst.FullSrcRegisters[1].SrcRegister.File = TGSI_FILE_SAMPLER;
- inst.FullSrcRegisters[1].SrcRegister.Index = 0;
- ti += tgsi_build_full_instruction(&inst,
- &tokens[ti],
- header,
- maxTokens - ti );
-
- /* END instruction */
- inst = tgsi_default_full_instruction();
- inst.Instruction.Opcode = TGSI_OPCODE_END;
- inst.Instruction.NumDstRegs = 0;
- inst.Instruction.NumSrcRegs = 0;
- ti += tgsi_build_full_instruction(&inst,
- &tokens[ti],
- header,
- maxTokens - ti );
-
-#if 0 /*debug*/
- tgsi_dump(tokens, 0);
-#endif
-
- shader->tokens = tokens;
- /*shader->num_tokens = ti;*/
-
- return pipe->create_fs_state(pipe, shader);
-}
+ struct ureg_program *ureg;
+ struct ureg_src sampler;
+ struct ureg_src tex;
+ struct ureg_dst out, depth;
+ struct ureg_src imm;
+
+ ureg = ureg_create( TGSI_PROCESSOR_FRAGMENT );
+ if (ureg == NULL)
+ return NULL;
+
+ sampler = ureg_DECL_sampler( ureg, 0 );
+
+ tex = ureg_DECL_fs_input( ureg,
+ TGSI_SEMANTIC_GENERIC, 0,
+ TGSI_INTERPOLATE_PERSPECTIVE );
+ out = ureg_DECL_output( ureg,
+ TGSI_SEMANTIC_COLOR,
+ 0 );
+ depth = ureg_DECL_output( ureg,
+ TGSI_SEMANTIC_POSITION,
+ 0 );
+ imm = ureg_imm4f( ureg, 0, 0, 0, 1 );
+
+ ureg_MOV( ureg, out, imm );
+
+ ureg_TEX( ureg,
+ ureg_writemask(depth, TGSI_WRITEMASK_Z),
+ tex_target, tex, sampler );
+ ureg_END( ureg );
+
+ return ureg_create_shader_and_destroy( ureg, pipe );
+}
/**
* Make simple fragment color pass-through shader.
*/
void *
-util_make_fragment_passthrough_shader(struct pipe_context *pipe,
- struct pipe_shader_state *shader)
+util_make_fragment_passthrough_shader(struct pipe_context *pipe)
{
- uint maxTokens = 40;
- struct tgsi_token *tokens;
- struct tgsi_header *header;
- struct tgsi_processor *processor;
- struct tgsi_full_declaration decl;
- struct tgsi_full_instruction inst;
- const uint procType = TGSI_PROCESSOR_FRAGMENT;
- uint ti;
-
- tokens = (struct tgsi_token *) MALLOC(maxTokens * sizeof(tokens[0]));
-
- /* shader header
- */
- *(struct tgsi_version *) &tokens[0] = tgsi_build_version();
-
- header = (struct tgsi_header *) &tokens[1];
- *header = tgsi_build_header();
-
- processor = (struct tgsi_processor *) &tokens[2];
- *processor = tgsi_build_processor( procType, header );
-
- ti = 3;
-
- /* declare input */
- decl = tgsi_default_full_declaration();
- decl.Declaration.File = TGSI_FILE_INPUT;
- decl.Declaration.Semantic = 1;
- decl.Semantic.SemanticName = TGSI_SEMANTIC_COLOR;
- decl.Semantic.SemanticIndex = 0;
- decl.DeclarationRange.First =
- decl.DeclarationRange.Last = 0;
- ti += tgsi_build_full_declaration(&decl,
- &tokens[ti],
- header,
- maxTokens - ti);
-
- /* declare output */
- decl = tgsi_default_full_declaration();
- decl.Declaration.File = TGSI_FILE_OUTPUT;
- decl.Declaration.Semantic = 1;
- decl.Semantic.SemanticName = TGSI_SEMANTIC_COLOR;
- decl.Semantic.SemanticIndex = 0;
- decl.DeclarationRange.First =
- decl.DeclarationRange.Last = 0;
- ti += tgsi_build_full_declaration(&decl,
- &tokens[ti],
- header,
- maxTokens - ti);
-
-
- /* MOVE out[0], in[0]; */
- inst = tgsi_default_full_instruction();
- inst.Instruction.Opcode = TGSI_OPCODE_MOV;
- inst.Instruction.NumDstRegs = 1;
- inst.FullDstRegisters[0].DstRegister.File = TGSI_FILE_OUTPUT;
- inst.FullDstRegisters[0].DstRegister.Index = 0;
- inst.Instruction.NumSrcRegs = 1;
- inst.FullSrcRegisters[0].SrcRegister.File = TGSI_FILE_INPUT;
- inst.FullSrcRegisters[0].SrcRegister.Index = 0;
- ti += tgsi_build_full_instruction(&inst,
- &tokens[ti],
- header,
- maxTokens - ti );
-
- /* END instruction */
- inst = tgsi_default_full_instruction();
- inst.Instruction.Opcode = TGSI_OPCODE_END;
- inst.Instruction.NumDstRegs = 0;
- inst.Instruction.NumSrcRegs = 0;
- ti += tgsi_build_full_instruction(&inst,
- &tokens[ti],
- header,
- maxTokens - ti );
-
- assert(ti < maxTokens);
-
-#if 0 /*debug*/
- tgsi_dump(tokens, 0);
-#endif
-
- shader->tokens = tokens;
- /*shader->num_tokens = ti;*/
-
- return pipe->create_fs_state(pipe, shader);
+ return util_make_fragment_clonecolor_shader(pipe, 1);
}
+
+/**
+ * Make a fragment shader that copies the input color to N output colors.
+ */
+void *
+util_make_fragment_clonecolor_shader(struct pipe_context *pipe, int num_cbufs)
+{
+ struct ureg_program *ureg;
+ struct ureg_src src;
+ struct ureg_dst dst[PIPE_MAX_COLOR_BUFS];
+ int i;
+
+ assert(num_cbufs <= PIPE_MAX_COLOR_BUFS);
+
+ ureg = ureg_create( TGSI_PROCESSOR_FRAGMENT );
+ if (ureg == NULL)
+ return NULL;
+
+ src = ureg_DECL_fs_input( ureg, TGSI_SEMANTIC_COLOR, 0,
+ TGSI_INTERPOLATE_PERSPECTIVE );
+
+ for (i = 0; i < num_cbufs; i++)
+ dst[i] = ureg_DECL_output( ureg, TGSI_SEMANTIC_COLOR, i );
+
+ for (i = 0; i < num_cbufs; i++)
+ ureg_MOV( ureg, dst[i], src );
+
+ ureg_END( ureg );
+
+ return ureg_create_shader_and_destroy( ureg, pipe );
+}
projects / mesa.git / blobdiff