gallium: new mipmap generation code
Based on code from Mesa's state tracker. Still need to implement fallbacks for those texture formats which can't generally be rendered to.
This commit is contained in:
Brian
parent
e3a747f1fe
commit
f1b42595d0
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@ -0,0 +1,495 @@
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/**************************************************************************
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*
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* Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas.
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* All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sub license, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice (including the
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* next paragraph) shall be included in all copies or substantial portions
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* of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
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* IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
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* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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**************************************************************************/
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/**
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* @file
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* Mipmap generation utility
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*
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* @author Brian Paul
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*/
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#include "pipe/p_context.h"
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#include "pipe/p_defines.h"
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#include "pipe/p_inlines.h"
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#include "pipe/p_util.h"
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#include "pipe/p_winsys.h"
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#include "pipe/p_shader_tokens.h"
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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 "tgsi/util/tgsi_build.h"
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#include "tgsi/util/tgsi_dump.h"
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#include "tgsi/util/tgsi_parse.h"
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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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* generate a mipmap.
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*/
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struct gen_mipmap_state *
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util_create_gen_mipmap(struct pipe_context *pipe)
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{
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struct pipe_blend_state blend;
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struct pipe_depth_stencil_alpha_state depthstencil;
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struct pipe_rasterizer_state rasterizer;
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struct gen_mipmap_state *ctx;
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ctx = CALLOC_STRUCT(gen_mipmap_state);
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if (!ctx)
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return NULL;
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ctx->pipe = pipe;
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/* we don't use blending, but need to set valid values */
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memset(&blend, 0, sizeof(blend));
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blend.rgb_src_factor = PIPE_BLENDFACTOR_ONE;
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blend.alpha_src_factor = PIPE_BLENDFACTOR_ONE;
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blend.rgb_dst_factor = PIPE_BLENDFACTOR_ZERO;
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blend.alpha_dst_factor = PIPE_BLENDFACTOR_ZERO;
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blend.colormask = PIPE_MASK_RGBA;
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ctx->blend = pipe->create_blend_state(pipe, &blend);
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/* depth/stencil/alpha */
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memset(&depthstencil, 0, sizeof(depthstencil));
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ctx->depthstencil = pipe->create_depth_stencil_alpha_state(pipe, &depthstencil);
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/* rasterizer */
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memset(&rasterizer, 0, sizeof(rasterizer));
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rasterizer.front_winding = PIPE_WINDING_CW;
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rasterizer.cull_mode = PIPE_WINDING_NONE;
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rasterizer.bypass_clipping = 1; /* bypasses viewport too */
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//rasterizer.bypass_vs = 1;
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ctx->rasterizer = pipe->create_rasterizer_state(pipe, &rasterizer);
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#if 0
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/* viewport */
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ctx->viewport.scale[0] = 1.0;
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ctx->viewport.scale[1] = 1.0;
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ctx->viewport.scale[2] = 1.0;
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ctx->viewport.scale[3] = 1.0;
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ctx->viewport.translate[0] = 0.0;
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ctx->viewport.translate[1] = 0.0;
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ctx->viewport.translate[2] = 0.0;
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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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return ctx;
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}
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/**
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* Destroy a mipmap generation context
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*/
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void
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util_destroy_gen_mipmap(struct gen_mipmap_state *ctx)
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{
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struct pipe_context *pipe = ctx->pipe;
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pipe->delete_blend_state(pipe, ctx->blend);
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pipe->delete_depth_stencil_alpha_state(pipe, ctx->depthstencil);
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pipe->delete_rasterizer_state(pipe, ctx->rasterizer);
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pipe->delete_vs_state(pipe, ctx->vs);
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pipe->delete_fs_state(pipe, ctx->fs);
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FREE(ctx);
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}
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#if 0
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static void
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simple_viewport(struct pipe_context *pipe, uint width, uint height)
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{
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struct pipe_viewport_state vp;
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vp.scale[0] = 0.5 * width;
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vp.scale[1] = -0.5 * height;
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vp.scale[2] = 1.0;
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vp.scale[3] = 1.0;
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vp.translate[0] = 0.5 * width;
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vp.translate[1] = 0.5 * height;
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vp.translate[2] = 0.0;
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vp.translate[3] = 0.0;
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pipe->set_viewport_state(pipe, &vp);
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}
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#endif
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/**
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* Generate mipmap images. It's assumed all needed texture memory is
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* already allocated.
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*
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* \param pt the texture to generate mipmap levels for
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* \param face which cube face to generate mipmaps for (0 for non-cube maps)
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* \param baseLevel the first mipmap level to use as a src
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* \param lastLevel the last mipmap level to generate
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*/
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void
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util_gen_mipmap(struct gen_mipmap_state *ctx,
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struct pipe_texture *pt,
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uint face, uint baseLevel, uint lastLevel)
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{
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struct pipe_context *pipe = ctx->pipe;
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struct pipe_screen *screen = pipe->screen;
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struct pipe_framebuffer_state fb;
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struct pipe_sampler_state sampler;
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void *sampler_cso;
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uint dstLevel;
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uint zslice = 0;
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/* check if we can render in the texture's format */
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if (!screen->is_format_supported(screen, pt->format, PIPE_SURFACE)) {
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#if 0
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fallback_gen_mipmap(ctx, pt, face, baseLevel, lastLevel);
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#endif
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return;
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}
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/* init framebuffer state */
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memset(&fb, 0, sizeof(fb));
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fb.num_cbufs = 1;
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/* sampler state */
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memset(&sampler, 0, sizeof(sampler));
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sampler.wrap_s = PIPE_TEX_WRAP_CLAMP_TO_EDGE;
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sampler.wrap_t = PIPE_TEX_WRAP_CLAMP_TO_EDGE;
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sampler.wrap_r = PIPE_TEX_WRAP_CLAMP_TO_EDGE;
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sampler.min_mip_filter = PIPE_TEX_MIPFILTER_NEAREST;
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sampler.min_img_filter = PIPE_TEX_FILTER_LINEAR;
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sampler.mag_img_filter = PIPE_TEX_FILTER_LINEAR;
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sampler.normalized_coords = 1;
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/* bind our state */
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pipe->bind_blend_state(pipe, ctx->blend);
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pipe->bind_depth_stencil_alpha_state(pipe, ctx->depthstencil);
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pipe->bind_rasterizer_state(pipe, ctx->rasterizer);
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pipe->bind_vs_state(pipe, ctx->vs);
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pipe->bind_fs_state(pipe, ctx->fs);
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#if 0
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pipe->set_viewport_state(pipe, &ctx->viewport);
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#endif
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/*
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* XXX for small mipmap levels, it may be faster to use the software
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* fallback path...
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*/
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for (dstLevel = baseLevel + 1; dstLevel <= lastLevel; dstLevel++) {
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const uint srcLevel = dstLevel - 1;
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/*
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* Setup framebuffer / dest surface
|
||||
*/
|
||||
fb.cbufs[0] = screen->get_tex_surface(screen, pt, face, dstLevel, zslice);
|
||||
pipe->set_framebuffer_state(pipe, &fb);
|
||||
|
||||
/*
|
||||
* Setup sampler state
|
||||
* Note: we should only have to set the min/max LOD clamps to ensure
|
||||
* we grab texels from the right mipmap level. But some hardware
|
||||
* has trouble with min clamping so we also set the lod_bias to
|
||||
* try to work around that.
|
||||
*/
|
||||
sampler.min_lod = sampler.max_lod = srcLevel;
|
||||
sampler.lod_bias = srcLevel;
|
||||
sampler_cso = pipe->create_sampler_state(pipe, &sampler);
|
||||
pipe->bind_sampler_states(pipe, 1, &sampler_cso);
|
||||
|
||||
#if 0
|
||||
simple_viewport(pipe, pt->width[dstLevel], pt->height[dstLevel]);
|
||||
#endif
|
||||
|
||||
pipe->set_sampler_textures(pipe, 1, &pt);
|
||||
|
||||
/* quad coords in window coords (bypassing clipping, viewport mapping) */
|
||||
util_draw_texquad(pipe,
|
||||
0.0F, 0.0F, /* x0, y0 */
|
||||
(float) pt->width[dstLevel], /* x1 */
|
||||
(float) pt->height[dstLevel], /* y1 */
|
||||
0.0F); /* z */
|
||||
|
||||
|
||||
pipe->flush(pipe, PIPE_FLUSH_WAIT);
|
||||
|
||||
/*pipe->texture_update(pipe, pt); not really needed */
|
||||
|
||||
pipe->delete_sampler_state(pipe, sampler_cso);
|
||||
}
|
||||
|
||||
/* Note: caller must restore pipe/gallium state at this time */
|
||||
}
|
||||
|
|
@ -0,0 +1,63 @@
|
|||
/**************************************************************************
|
||||
*
|
||||
* Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas.
|
||||
* All Rights Reserved.
|
||||
*
|
||||
* Permission is hereby granted, free of charge, to any person obtaining a
|
||||
* copy of this software and associated documentation files (the
|
||||
* "Software"), to deal in the Software without restriction, including
|
||||
* without limitation the rights to use, copy, modify, merge, publish,
|
||||
* distribute, sub license, and/or sell copies of the Software, and to
|
||||
* permit persons to whom the Software is furnished to do so, subject to
|
||||
* the following conditions:
|
||||
*
|
||||
* The above copyright notice and this permission notice (including the
|
||||
* next paragraph) shall be included in all copies or substantial portions
|
||||
* of the Software.
|
||||
*
|
||||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
|
||||
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
||||
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
|
||||
* IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
|
||||
* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
|
||||
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
|
||||
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
|
||||
*
|
||||
**************************************************************************/
|
||||
|
||||
#ifndef U_GENMIPMAP_H
|
||||
#define U_GENMIPMAP_H
|
||||
|
||||
#include "pipe/p_state.h"
|
||||
|
||||
|
||||
struct gen_mipmap_state
|
||||
{
|
||||
struct pipe_context *pipe;
|
||||
|
||||
void *blend;
|
||||
void *depthstencil;
|
||||
void *rasterizer;
|
||||
/*struct pipe_viewport_state viewport;*/
|
||||
struct pipe_sampler_state *vs;
|
||||
struct pipe_sampler_state *fs;
|
||||
};
|
||||
|
||||
|
||||
|
||||
extern struct gen_mipmap_state *
|
||||
util_create_gen_mipmap(struct pipe_context *pipe);
|
||||
|
||||
|
||||
extern void
|
||||
util_destroy_gen_mipmap(struct gen_mipmap_state *ctx);
|
||||
|
||||
|
||||
|
||||
extern void
|
||||
util_gen_mipmap(struct gen_mipmap_state *ctx,
|
||||
struct pipe_texture *pt,
|
||||
uint face, uint baseLevel, uint lastLevel);
|
||||
|
||||
|
||||
#endif
|
||||
Loading…
Reference in New Issue