mirror of
https://github.com/dolphin-emu/dolphin.git
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290 lines
8.4 KiB
C++
290 lines
8.4 KiB
C++
// Copyright (C) 2003 Dolphin Project.
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, version 2.0.
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License 2.0 for more details.
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// A copy of the GPL 2.0 should have been included with the program.
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// If not, see http://www.gnu.org/licenses/
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// Official SVN repository and contact information can be found at
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// http://code.google.com/p/dolphin-emu/
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#include "ProgramShaderCache.h"
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#include "MathUtil.h"
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namespace OGL
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{
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GLuint ProgramShaderCache::CurrentProgram = 0;
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ProgramShaderCache::PCache ProgramShaderCache::pshaders;
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GLuint ProgramShaderCache::s_ps_vs_ubo;
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GLintptr ProgramShaderCache::s_vs_data_offset;
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float *ProgramShaderCache::s_ubo_buffer;
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u32 ProgramShaderCache::s_ubo_buffer_size;
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bool ProgramShaderCache::s_ubo_dirty;
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LinearDiskCache<ProgramShaderCache::ShaderUID, u8> g_program_disk_cache;
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GLenum ProgramFormat;
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GLuint ProgramShaderCache::PCacheEntry::prog_format = 0;
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std::pair<u32, u32> ProgramShaderCache::CurrentShaderProgram;
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const char *UniformNames[NUM_UNIFORMS] =
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{
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// SAMPLERS
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"samp0","samp1","samp2","samp3","samp4","samp5","samp6","samp7",
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// PIXEL SHADER UNIFORMS
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I_COLORS,
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I_KCOLORS,
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I_ALPHA,
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I_TEXDIMS,
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I_ZBIAS ,
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I_INDTEXSCALE ,
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I_INDTEXMTX,
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I_FOG,
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I_PLIGHTS,
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I_PMATERIALS,
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// VERTEX SHADER UNIFORMS
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I_POSNORMALMATRIX,
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I_PROJECTION ,
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I_MATERIALS,
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I_LIGHTS,
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I_TEXMATRICES,
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I_TRANSFORMMATRICES ,
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I_NORMALMATRICES ,
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I_POSTTRANSFORMMATRICES,
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I_DEPTHPARAMS,
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};
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void ProgramShaderCache::SetProgramVariables(PCacheEntry &entry)
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{
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// Bind UBO
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if (g_ActiveConfig.backend_info.bSupportsGLSLUBO)
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{
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GLint PSBlock_id = glGetUniformBlockIndex(entry.prog_id, "PSBlock");
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GLint VSBlock_id = glGetUniformBlockIndex(entry.prog_id, "VSBlock");
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if(PSBlock_id != -1)
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glUniformBlockBinding(entry.prog_id, PSBlock_id, 1);
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if(VSBlock_id != -1)
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glUniformBlockBinding(entry.prog_id, VSBlock_id, 2);
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}
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// We cache our uniform locations for now
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// Once we move up to a newer version of GLSL, ~1.30
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// We can remove this
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// (Sonicadvance): For some reason this fails on my hardware
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//glGetUniformIndices(entry.prog_id, NUM_UNIFORMS, UniformNames, entry.UniformLocations);
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// Got to do it this crappy way.
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if (!g_ActiveConfig.backend_info.bSupportsGLSLUBO)
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for (int a = 8; a < NUM_UNIFORMS; ++a)
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entry.UniformLocations[a] = glGetUniformLocation(entry.prog_id, UniformNames[a]);
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// Bind Texture Sampler
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for (int a = 0; a < 8; ++a)
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{
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// Still need to get sampler locations since we aren't binding them statically in the shaders
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entry.UniformLocations[a] = glGetUniformLocation(entry.prog_id, UniformNames[a]);
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if (entry.UniformLocations[a] != -1)
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glUniform1i(entry.UniformLocations[a], a);
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}
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}
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void ProgramShaderCache::SetProgramBindings ( ProgramShaderCache::PCacheEntry& entry )
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{
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if (g_ActiveConfig.backend_info.bSupportsDualSourceBlend)
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{
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// So we do support extended blending
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// So we need to set a few more things here.
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// Bind our out locations
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glBindFragDataLocationIndexed(entry.prog_id, 0, 0, "ocol0");
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glBindFragDataLocationIndexed(entry.prog_id, 0, 1, "ocol1");
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}
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// Need to set some attribute locations
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glBindAttribLocation(entry.prog_id, SHADER_POSITION_ATTRIB, "rawpos");
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glBindAttribLocation(entry.prog_id, SHADER_POSMTX_ATTRIB, "fposmtx");
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glBindAttribLocation(entry.prog_id, SHADER_COLOR0_ATTRIB, "color0");
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glBindAttribLocation(entry.prog_id, SHADER_COLOR1_ATTRIB, "color1");
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glBindAttribLocation(entry.prog_id, SHADER_NORM0_ATTRIB, "rawnorm0");
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glBindAttribLocation(entry.prog_id, SHADER_NORM1_ATTRIB, "rawnorm1");
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glBindAttribLocation(entry.prog_id, SHADER_NORM2_ATTRIB, "rawnorm2");
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for(int i=0; i<8; i++) {
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char attrib_name[8];
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snprintf(attrib_name, 8, "tex%d", i);
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glBindAttribLocation(entry.prog_id, SHADER_TEXTURE0_ATTRIB+i, attrib_name);
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}
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}
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void ProgramShaderCache::SetBothShaders(GLuint PS, GLuint VS)
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{
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if(!PS || !VS) {
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ERROR_LOG(VIDEO, "tried to bind a zero shader");
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return;
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}
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std::pair<u32, u32> ShaderPair = std::make_pair(PS, VS);
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// program is already bound
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if(ShaderPair == CurrentShaderProgram) return;
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PCache::iterator iter = pshaders.find(ShaderPair);
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if (iter != pshaders.end())
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{
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PCacheEntry &entry = iter->second;
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glUseProgram(entry.prog_id);
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CurrentProgram = entry.prog_id;
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CurrentShaderProgram = ShaderPair;
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return;
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}
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PCacheEntry entry;
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entry.Create(PS, VS);
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// Right, the program is created now
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// Let's attach everything
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glAttachShader(entry.prog_id, entry.vsid);
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glAttachShader(entry.prog_id, entry.psid);
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if (g_ActiveConfig.backend_info.bSupportsGLSLCache)
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glProgramParameteri(entry.prog_id, GL_PROGRAM_BINARY_RETRIEVABLE_HINT, GL_TRUE);
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SetProgramBindings(entry);
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glLinkProgram(entry.prog_id);
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glUseProgram(entry.prog_id);
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SetProgramVariables(entry);
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pshaders[ShaderPair] = entry;
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CurrentShaderProgram = ShaderPair;
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CurrentProgram = entry.prog_id;
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}
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void ProgramShaderCache::SetMultiPSConstant4fv(unsigned int offset, const float *f, unsigned int count)
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{
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s_ubo_dirty = true;
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memcpy(s_ubo_buffer+(offset*4), f, count*4*sizeof(float));
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}
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void ProgramShaderCache::SetMultiVSConstant4fv(unsigned int offset, const float *f, unsigned int count)
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{
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s_ubo_dirty = true;
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memcpy(s_ubo_buffer+(offset*4)+s_vs_data_offset/sizeof(float), f, count*4*sizeof(float));
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}
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void ProgramShaderCache::UploadConstants()
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{
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if(s_ubo_dirty)
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glBufferData(GL_UNIFORM_BUFFER, s_ubo_buffer_size, s_ubo_buffer, GL_STREAM_DRAW);
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s_ubo_dirty = false;
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}
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GLuint ProgramShaderCache::GetCurrentProgram(void)
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{
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return CurrentProgram;
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}
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ProgramShaderCache::PCacheEntry ProgramShaderCache::GetShaderProgram(void)
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{
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return pshaders[CurrentShaderProgram];
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}
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void ProgramShaderCache::Init(void)
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{
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// We have to get the UBO alignment here because
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// if we generate a buffer that isn't aligned
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// then the UBO will fail.
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if (g_ActiveConfig.backend_info.bSupportsGLSLUBO)
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{
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GLint Align;
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glGetIntegerv(GL_UNIFORM_BUFFER_OFFSET_ALIGNMENT, &Align);
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GLintptr const ps_data_size = ROUND_UP(C_PENVCONST_END * sizeof(float) * 4, Align);
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GLintptr const vs_data_size = ROUND_UP(C_VENVCONST_END * sizeof(float) * 4, Align);
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s_vs_data_offset = ps_data_size;
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s_ubo_buffer_size = ps_data_size + vs_data_size;
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// We multiply by *4*4 because we need to get down to basic machine units.
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// So multiply by four to get how many floats we have from vec4s
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// Then once more to get bytes
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glGenBuffers(1, &s_ps_vs_ubo);
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glBindBuffer(GL_UNIFORM_BUFFER, s_ps_vs_ubo);
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glBufferData(GL_UNIFORM_BUFFER, s_ubo_buffer_size, NULL, GL_STREAM_DRAW);
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// Now bind the buffer to the index point
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// We know PS is 0 since we have it statically set in the shader
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// Repeat for VS shader
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glBindBufferRange(GL_UNIFORM_BUFFER, 1, s_ps_vs_ubo, 0, ps_data_size);
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glBindBufferRange(GL_UNIFORM_BUFFER, 2, s_ps_vs_ubo, s_vs_data_offset, vs_data_size);
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s_ubo_buffer = new float[s_ubo_buffer_size/sizeof(float)];
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s_ubo_dirty = true;
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}
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// Read our shader cache, only if supported
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if (g_ActiveConfig.backend_info.bSupportsGLSLCache)
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{
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PCacheEntry::prog_format = PCacheEntry::SetProgramFormat();
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char cache_filename[MAX_PATH];
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sprintf(cache_filename, "%sogl-%s-shaders.cache", File::GetUserPath(D_SHADERCACHE_IDX).c_str(),
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SConfig::GetInstance().m_LocalCoreStartupParameter.m_strUniqueID.c_str());
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ProgramShaderCacheInserter inserter;
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g_program_disk_cache.OpenAndRead(cache_filename, inserter);
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}
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CurrentProgram = 0;
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CurrentShaderProgram = std::pair<u32,u32>(0,0);
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}
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void ProgramShaderCache::Shutdown(void)
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{
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if (g_ActiveConfig.backend_info.bSupportsGLSLCache)
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{
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PCache::iterator iter = pshaders.begin();
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for (; iter != pshaders.end(); ++iter)
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{
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g_program_disk_cache.Append(iter->second.uid, iter->second.GetProgram(), iter->second.Size());
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iter->second.FreeProgram();
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}
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g_program_disk_cache.Sync();
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g_program_disk_cache.Close();
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}
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glUseProgram(0);
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PCache::iterator iter = pshaders.begin();
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for (; iter != pshaders.end(); ++iter)
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iter->second.Destroy();
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pshaders.clear();
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if (g_ActiveConfig.backend_info.bSupportsGLSLUBO)
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{
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glBindBuffer(GL_UNIFORM_BUFFER, 0);
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glDeleteBuffers(1, &s_ps_vs_ubo);
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s_ps_vs_ubo = 0;
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delete [] s_ubo_buffer;
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s_ubo_buffer = 0;
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}
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}
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} // namespace OGL
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