mirror of
https://github.com/yuzu-emu/yuzu.git
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renderer_opengl: Refactor shader generation/caching to be more organized + various cleanups.
This commit is contained in:
parent
3c057bd3d8
commit
c86b9d4242
@ -4,6 +4,9 @@
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#pragma once
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#include <cstddef>
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#include <functional>
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#include "common_types.h"
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#define ARRAY_SIZE(a) (sizeof(a) / sizeof(a[0]))
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@ -95,3 +98,18 @@ inline u64 _rotr64(u64 x, unsigned int shift){
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// This function might change the error code.
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// Defined in Misc.cpp.
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const char* GetLastErrorMsg();
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template <typename T>
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inline std::size_t hash(const T& o) {
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return std::hash<T>()(o);
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}
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template <typename T>
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inline std::size_t combine_hash(const T& o) {
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return hash(o);
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}
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template <typename T, typename... Args>
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inline std::size_t combine_hash(const T& o, const Args&... args) {
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return hash(o) * 3 + combine_hash(args...);
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}
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@ -1,6 +1,7 @@
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set(SRCS
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renderer_opengl/gl_rasterizer.cpp
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renderer_opengl/gl_rasterizer_cache.cpp
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renderer_opengl/gl_shader_gen.cpp
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renderer_opengl/gl_shader_util.cpp
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renderer_opengl/gl_state.cpp
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renderer_opengl/renderer_opengl.cpp
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@ -21,8 +22,8 @@ set(HEADERS
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renderer_opengl/gl_rasterizer.h
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renderer_opengl/gl_rasterizer_cache.h
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renderer_opengl/gl_resource_manager.h
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renderer_opengl/gl_shader_gen.h
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renderer_opengl/gl_shader_util.h
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renderer_opengl/gl_shaders.h
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renderer_opengl/gl_state.h
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renderer_opengl/pica_to_gl.h
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renderer_opengl/renderer_opengl.h
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@ -9,6 +9,7 @@
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#include "common/color.h"
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#include "common/file_util.h"
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#include "common/make_unique.h"
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#include "common/math_util.h"
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#include "common/microprofile.h"
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#include "common/profiler.h"
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@ -20,7 +21,7 @@
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#include "video_core/pica.h"
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#include "video_core/utils.h"
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#include "video_core/renderer_opengl/gl_rasterizer.h"
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#include "video_core/renderer_opengl/gl_shaders.h"
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#include "video_core/renderer_opengl/gl_shader_gen.h"
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#include "video_core/renderer_opengl/gl_shader_util.h"
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#include "video_core/renderer_opengl/pica_to_gl.h"
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@ -54,20 +55,20 @@ void RasterizerOpenGL::InitObjects() {
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state.Apply();
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// Set vertex attributes
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glVertexAttribPointer(ShaderUtil::ATTRIBUTE_POSITION, 4, GL_FLOAT, GL_FALSE, sizeof(HardwareVertex), (GLvoid*)offsetof(HardwareVertex, position));
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glEnableVertexAttribArray(ShaderUtil::ATTRIBUTE_POSITION);
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glVertexAttribPointer(GLShader::ATTRIBUTE_POSITION, 4, GL_FLOAT, GL_FALSE, sizeof(HardwareVertex), (GLvoid*)offsetof(HardwareVertex, position));
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glEnableVertexAttribArray(GLShader::ATTRIBUTE_POSITION);
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glVertexAttribPointer(ShaderUtil::ATTRIBUTE_COLOR, 4, GL_FLOAT, GL_FALSE, sizeof(HardwareVertex), (GLvoid*)offsetof(HardwareVertex, color));
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glEnableVertexAttribArray(ShaderUtil::ATTRIBUTE_COLOR);
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glVertexAttribPointer(GLShader::ATTRIBUTE_COLOR, 4, GL_FLOAT, GL_FALSE, sizeof(HardwareVertex), (GLvoid*)offsetof(HardwareVertex, color));
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glEnableVertexAttribArray(GLShader::ATTRIBUTE_COLOR);
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glVertexAttribPointer(ShaderUtil::ATTRIBUTE_TEXCOORDS, 2, GL_FLOAT, GL_FALSE, sizeof(HardwareVertex), (GLvoid*)offsetof(HardwareVertex, tex_coord0));
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glVertexAttribPointer(ShaderUtil::ATTRIBUTE_TEXCOORDS + 1, 2, GL_FLOAT, GL_FALSE, sizeof(HardwareVertex), (GLvoid*)offsetof(HardwareVertex, tex_coord1));
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glVertexAttribPointer(ShaderUtil::ATTRIBUTE_TEXCOORDS + 2, 2, GL_FLOAT, GL_FALSE, sizeof(HardwareVertex), (GLvoid*)offsetof(HardwareVertex, tex_coord2));
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glEnableVertexAttribArray(ShaderUtil::ATTRIBUTE_TEXCOORDS);
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glEnableVertexAttribArray(ShaderUtil::ATTRIBUTE_TEXCOORDS + 1);
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glEnableVertexAttribArray(ShaderUtil::ATTRIBUTE_TEXCOORDS + 2);
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glVertexAttribPointer(GLShader::ATTRIBUTE_TEXCOORDS + 0, 2, GL_FLOAT, GL_FALSE, sizeof(HardwareVertex), (GLvoid*)offsetof(HardwareVertex, tex_coord0));
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glVertexAttribPointer(GLShader::ATTRIBUTE_TEXCOORDS + 1, 2, GL_FLOAT, GL_FALSE, sizeof(HardwareVertex), (GLvoid*)offsetof(HardwareVertex, tex_coord1));
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glVertexAttribPointer(GLShader::ATTRIBUTE_TEXCOORDS + 2, 2, GL_FLOAT, GL_FALSE, sizeof(HardwareVertex), (GLvoid*)offsetof(HardwareVertex, tex_coord2));
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glEnableVertexAttribArray(GLShader::ATTRIBUTE_TEXCOORDS + 0);
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glEnableVertexAttribArray(GLShader::ATTRIBUTE_TEXCOORDS + 1);
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glEnableVertexAttribArray(GLShader::ATTRIBUTE_TEXCOORDS + 2);
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RegenerateShaders();
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SetShader();
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// Create textures for OGL framebuffer that will be rendered to, initially 1x1 to succeed in framebuffer creation
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fb_color_texture.texture.Create();
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@ -117,8 +118,6 @@ void RasterizerOpenGL::InitObjects() {
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}
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void RasterizerOpenGL::Reset() {
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const auto& regs = Pica::g_state.regs;
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SyncCullMode();
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SyncBlendEnabled();
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SyncBlendFuncs();
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@ -127,7 +126,7 @@ void RasterizerOpenGL::Reset() {
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SyncStencilTest();
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SyncDepthTest();
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RegenerateShaders();
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SetShader();
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res_cache.FullFlush();
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}
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@ -140,70 +139,12 @@ void RasterizerOpenGL::AddTriangle(const Pica::Shader::OutputVertex& v0,
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vertex_batch.emplace_back(v2);
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}
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namespace ShaderCache {
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extern std::string GenerateFragmentShader(const ShaderCacheKey& config);
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}
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void RasterizerOpenGL::RegenerateShaders() {
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ShaderCacheKey config = ShaderCacheKey::CurrentShaderConfig();
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auto cached_shader = shader_cache.find(config);
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if (cached_shader != shader_cache.end()) {
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current_shader = &cached_shader->second;
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state.draw.shader_program = current_shader->shader.handle;
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state.Apply();
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} else {
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LOG_CRITICAL(Render_OpenGL, "Creating new shader: %08X", hash(config));
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TEVShader shader;
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std::string fragShader = ShaderCache::GenerateFragmentShader(config);
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shader.shader.Create(GLShaders::g_vertex_shader_hw, fragShader.c_str());
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shader.uniform_alphatest_ref = glGetUniformLocation(shader.shader.handle, "alphatest_ref");
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shader.uniform_tex = glGetUniformLocation(shader.shader.handle, "tex");
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shader.uniform_tev_combiner_buffer_color = glGetUniformLocation(shader.shader.handle, "tev_combiner_buffer_color");
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shader.uniform_tev_const_colors = glGetUniformLocation(shader.shader.handle, "const_color");
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current_shader = &shader_cache.emplace(config, std::move(shader)).first->second;
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state.draw.shader_program = current_shader->shader.handle;
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state.Apply();
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// Set the texture samplers to correspond to different texture units
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if (shader.uniform_tex != -1) {
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glUniform1i(shader.uniform_tex, 0);
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glUniform1i(shader.uniform_tex + 1, 1);
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glUniform1i(shader.uniform_tex + 2, 2);
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}
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}
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// Sync alpha reference
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if (current_shader->uniform_alphatest_ref != -1)
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glUniform1i(current_shader->uniform_alphatest_ref, Pica::g_state.regs.output_merger.alpha_test.ref);
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// Sync combiner buffer color
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if (current_shader->uniform_tev_combiner_buffer_color != -1) {
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auto combiner_color = PicaToGL::ColorRGBA8(Pica::g_state.regs.tev_combiner_buffer_color.raw);
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glUniform4fv(current_shader->uniform_tev_combiner_buffer_color, 1, combiner_color.data());
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}
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// Sync TEV const colors
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if (current_shader->uniform_tev_const_colors != -1) {
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auto& tev_stages = Pica::g_state.regs.GetTevStages();
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for (int tev_index = 0; tev_index < tev_stages.size(); ++tev_index) {
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auto const_color = PicaToGL::ColorRGBA8(tev_stages[tev_index].const_color);
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glUniform4fv(current_shader->uniform_tev_const_colors + tev_index, 1, const_color.data());
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}
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}
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}
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void RasterizerOpenGL::DrawTriangles() {
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SyncFramebuffer();
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SyncDrawState();
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if (state.draw.shader_dirty) {
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RegenerateShaders();
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SetShader();
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state.draw.shader_dirty = false;
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}
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@ -519,6 +460,48 @@ void RasterizerOpenGL::ReconfigureDepthTexture(DepthTextureInfo& texture, Pica::
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state.Apply();
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}
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void RasterizerOpenGL::SetShader() {
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ShaderCacheKey config = ShaderCacheKey::CurrentConfig();
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// Find (or generate) the GLSL shader for the current TEV state
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auto cached_shader = shader_cache.find(config);
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if (cached_shader != shader_cache.end()) {
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current_shader = cached_shader->second.get();
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state.draw.shader_program = current_shader->shader.handle;
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state.Apply();
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} else {
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LOG_DEBUG(Render_OpenGL, "Creating new shader: %08X", hash(config));
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std::unique_ptr<TEVShader> shader = Common::make_unique<TEVShader>();
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shader->shader.Create(GLShader::GenerateVertexShader().c_str(), GLShader::GenerateFragmentShader(config).c_str());
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shader->uniform_alphatest_ref = glGetUniformLocation(shader->shader.handle, "alphatest_ref");
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shader->uniform_tex = glGetUniformLocation(shader->shader.handle, "tex");
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shader->uniform_tev_combiner_buffer_color = glGetUniformLocation(shader->shader.handle, "tev_combiner_buffer_color");
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shader->uniform_tev_const_colors = glGetUniformLocation(shader->shader.handle, "const_color");
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state.draw.shader_program = shader->shader.handle;
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state.Apply();
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// Set the texture samplers to correspond to different texture units
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if (shader->uniform_tex != -1) {
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glUniform1i(shader->uniform_tex, 0);
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glUniform1i(shader->uniform_tex + 1, 1);
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glUniform1i(shader->uniform_tex + 2, 2);
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}
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current_shader = shader_cache.emplace(config, std::move(shader)).first->second.get();
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}
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// Update uniforms
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SyncAlphaTest();
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SyncCombinerColor();
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auto& tev_stages = Pica::g_state.regs.GetTevStages();
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for (int index = 0; index < tev_stages.size(); ++index)
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SyncTevConstColor(index, tev_stages[index]);
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}
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void RasterizerOpenGL::SyncFramebuffer() {
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const auto& regs = Pica::g_state.regs;
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#pragma once
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#include <cstddef>
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#include <memory>
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#include <vector>
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#include <unordered_map>
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@ -15,21 +17,6 @@
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#include "video_core/renderer_opengl/gl_state.h"
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#include "video_core/shader/shader_interpreter.h"
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template <typename T>
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inline size_t hash(const T& o) {
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return std::hash<T>()(o);
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}
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template <typename T>
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inline size_t combine_hash(const T& o) {
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return hash(o);
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}
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template <typename T, typename... Args>
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inline size_t combine_hash(const T& o, const Args&... args) {
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return hash(o) * 3 + combine_hash(args...);
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}
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struct ShaderCacheKey {
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using Regs = Pica::Regs;
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@ -49,7 +36,7 @@ struct ShaderCacheKey {
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return (stage_index < 4) && ((combiner_buffer_input >> 4) & (1 << stage_index));
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}
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static ShaderCacheKey CurrentShaderConfig() {
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static ShaderCacheKey CurrentConfig() {
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const auto& regs = Pica::g_state.regs;
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ShaderCacheKey config;
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@ -94,8 +81,14 @@ struct ShaderCacheKey {
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namespace std {
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template<> struct hash<::Pica::Regs::CompareFunc> {
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std::size_t operator()(const ::Pica::Regs::CompareFunc& o) {
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return ::hash((unsigned)o);
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}
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};
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template<> struct hash<::Pica::Regs::TevStageConfig> {
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size_t operator()(const ::Pica::Regs::TevStageConfig& o) {
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std::size_t operator()(const ::Pica::Regs::TevStageConfig& o) {
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return ::combine_hash(
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::hash(o.source_raw), ::hash(o.modifier_raw),
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::hash(o.op_raw), ::hash(o.scale_raw));
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@ -103,13 +96,14 @@ template<> struct hash<::Pica::Regs::TevStageConfig> {
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};
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template<> struct hash<::ShaderCacheKey> {
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size_t operator()(const ::ShaderCacheKey& o) const {
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std::size_t operator()(const ::ShaderCacheKey& o) const {
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return ::combine_hash(o.alpha_test_func, o.combiner_buffer_input,
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o.tev_stages[0], o.tev_stages[1], o.tev_stages[2],
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o.tev_stages[3], o.tev_stages[4], o.tev_stages[5]);
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}
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};
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}
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} // namespace std
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class RasterizerOpenGL : public HWRasterizer {
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public:
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@ -131,8 +125,6 @@ public:
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/// Draw the current batch of triangles
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void DrawTriangles() override;
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void RegenerateShaders();
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/// Commit the rasterizer's framebuffer contents immediately to the current 3DS memory framebuffer
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void CommitFramebuffer() override;
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@ -245,6 +237,9 @@ private:
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/// Reconfigure the OpenGL depth texture to use the given format and dimensions
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void ReconfigureDepthTexture(DepthTextureInfo& texture, Pica::Regs::DepthFormat format, u32 width, u32 height);
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/// Sets the OpenGL shader in accordance with the current PICA register state
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void SetShader();
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/// Syncs the state and contents of the OpenGL framebuffer to match the current PICA framebuffer
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void SyncFramebuffer();
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@ -315,8 +310,8 @@ private:
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TextureInfo fb_color_texture;
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DepthTextureInfo fb_depth_texture;
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std::unordered_map<ShaderCacheKey, TEVShader> shader_cache;
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TEVShader* current_shader = nullptr;
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std::unordered_map<ShaderCacheKey, std::unique_ptr<TEVShader>> shader_cache;
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const TEVShader* current_shader = nullptr;
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OGLVertexArray vertex_array;
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OGLBuffer vertex_buffer;
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/// Creates a new internal OpenGL resource and stores the handle
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void Create(const char* vert_shader, const char* frag_shader) {
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if (handle != 0) return;
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handle = ShaderUtil::LoadShaders(vert_shader, frag_shader);
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handle = GLShader::LoadProgram(vert_shader, frag_shader);
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}
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/// Deletes the internal OpenGL resource
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371
src/video_core/renderer_opengl/gl_shader_gen.cpp
Normal file
371
src/video_core/renderer_opengl/gl_shader_gen.cpp
Normal file
@ -0,0 +1,371 @@
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// Copyright 2015 Citra Emulator Project
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// Licensed under GPLv2 or any later version
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// Refer to the license.txt file included.
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#include "video_core/pica.h"
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#include "video_core/renderer_opengl/gl_rasterizer.h"
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#include "video_core/renderer_opengl/gl_shader_gen.h"
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namespace GLShader {
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static bool IsPassThroughTevStage(const Pica::Regs::TevStageConfig& stage) {
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return (stage.color_op == Pica::Regs::TevStageConfig::Operation::Replace &&
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stage.alpha_op == Pica::Regs::TevStageConfig::Operation::Replace &&
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stage.color_source1 == Pica::Regs::TevStageConfig::Source::Previous &&
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stage.alpha_source1 == Pica::Regs::TevStageConfig::Source::Previous &&
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stage.color_modifier1 == Pica::Regs::TevStageConfig::ColorModifier::SourceColor &&
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stage.alpha_modifier1 == Pica::Regs::TevStageConfig::AlphaModifier::SourceAlpha &&
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stage.GetColorMultiplier() == 1 &&
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stage.GetAlphaMultiplier() == 1);
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}
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static void AppendSource(std::string& shader, Pica::Regs::TevStageConfig::Source source, const std::string& index_name) {
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using Source = Pica::Regs::TevStageConfig::Source;
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switch (source) {
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case Source::PrimaryColor:
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shader += "o[2]";
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break;
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case Source::PrimaryFragmentColor:
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// HACK: Until we implement fragment lighting, use primary_color
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shader += "o[2]";
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break;
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case Source::SecondaryFragmentColor:
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// HACK: Until we implement fragment lighting, use zero
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shader += "vec4(0.0, 0.0, 0.0, 0.0)";
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break;
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case Source::Texture0:
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shader += "texture(tex[0], o[3].xy)";
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break;
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case Source::Texture1:
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shader += "texture(tex[1], o[3].zw)";
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break;
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case Source::Texture2: // TODO: Unverified
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shader += "texture(tex[2], o[5].zw)";
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break;
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case Source::PreviousBuffer:
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shader += "g_combiner_buffer";
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break;
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case Source::Constant:
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shader += "const_color[" + index_name + "]";
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break;
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case Source::Previous:
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shader += "g_last_tex_env_out";
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break;
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||||
default:
|
||||
shader += "vec4(0.0)";
|
||||
LOG_CRITICAL(Render_OpenGL, "Unknown source op %u", source);
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
static void AppendColorModifier(std::string& shader, Pica::Regs::TevStageConfig::ColorModifier modifier,
|
||||
Pica::Regs::TevStageConfig::Source source, const std::string& index_name) {
|
||||
using ColorModifier = Pica::Regs::TevStageConfig::ColorModifier;
|
||||
switch (modifier) {
|
||||
case ColorModifier::SourceColor:
|
||||
AppendSource(shader, source, index_name);
|
||||
shader += ".rgb";
|
||||
break;
|
||||
case ColorModifier::OneMinusSourceColor:
|
||||
shader += "vec3(1.0) - ";
|
||||
AppendSource(shader, source, index_name);
|
||||
shader += ".rgb";
|
||||
break;
|
||||
case ColorModifier::SourceAlpha:
|
||||
AppendSource(shader, source, index_name);
|
||||
shader += ".aaa";
|
||||
break;
|
||||
case ColorModifier::OneMinusSourceAlpha:
|
||||
shader += "vec3(1.0) - ";
|
||||
AppendSource(shader, source, index_name);
|
||||
shader += ".aaa";
|
||||
break;
|
||||
case ColorModifier::SourceRed:
|
||||
AppendSource(shader, source, index_name);
|
||||
shader += ".rrr";
|
||||
break;
|
||||
case ColorModifier::OneMinusSourceRed:
|
||||
shader += "vec3(1.0) - ";
|
||||
AppendSource(shader, source, index_name);
|
||||
shader += ".rrr";
|
||||
break;
|
||||
case ColorModifier::SourceGreen:
|
||||
AppendSource(shader, source, index_name);
|
||||
shader += ".ggg";
|
||||
break;
|
||||
case ColorModifier::OneMinusSourceGreen:
|
||||
shader += "vec3(1.0) - ";
|
||||
AppendSource(shader, source, index_name);
|
||||
shader += ".ggg";
|
||||
break;
|
||||
case ColorModifier::SourceBlue:
|
||||
AppendSource(shader, source, index_name);
|
||||
shader += ".bbb";
|
||||
break;
|
||||
case ColorModifier::OneMinusSourceBlue:
|
||||
shader += "vec3(1.0) - ";
|
||||
AppendSource(shader, source, index_name);
|
||||
shader += ".bbb";
|
||||
break;
|
||||
default:
|
||||
shader += "vec3(0.0)";
|
||||
LOG_CRITICAL(Render_OpenGL, "Unknown color modifier op %u", modifier);
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
static void AppendAlphaModifier(std::string& shader, Pica::Regs::TevStageConfig::AlphaModifier modifier,
|
||||
Pica::Regs::TevStageConfig::Source source, const std::string& index_name) {
|
||||
using AlphaModifier = Pica::Regs::TevStageConfig::AlphaModifier;
|
||||
switch (modifier) {
|
||||
case AlphaModifier::SourceAlpha:
|
||||
AppendSource(shader, source, index_name);
|
||||
shader += ".a";
|
||||
break;
|
||||
case AlphaModifier::OneMinusSourceAlpha:
|
||||
shader += "1.0 - ";
|
||||
AppendSource(shader, source, index_name);
|
||||
shader += ".a";
|
||||
break;
|
||||
case AlphaModifier::SourceRed:
|
||||
AppendSource(shader, source, index_name);
|
||||
shader += ".r";
|
||||
break;
|
||||
case AlphaModifier::OneMinusSourceRed:
|
||||
shader += "1.0 - ";
|
||||
AppendSource(shader, source, index_name);
|
||||
shader += ".r";
|
||||
break;
|
||||
case AlphaModifier::SourceGreen:
|
||||
AppendSource(shader, source, index_name);
|
||||
shader += ".g";
|
||||
break;
|
||||
case AlphaModifier::OneMinusSourceGreen:
|
||||
shader += "1.0 - ";
|
||||
AppendSource(shader, source, index_name);
|
||||
shader += ".g";
|
||||
break;
|
||||
case AlphaModifier::SourceBlue:
|
||||
AppendSource(shader, source, index_name);
|
||||
shader += ".b";
|
||||
break;
|
||||
case AlphaModifier::OneMinusSourceBlue:
|
||||
shader += "1.0 - ";
|
||||
AppendSource(shader, source, index_name);
|
||||
shader += ".b";
|
||||
break;
|
||||
default:
|
||||
shader += "vec3(0.0)";
|
||||
LOG_CRITICAL(Render_OpenGL, "Unknown alpha modifier op %u", modifier);
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
static void AppendColorCombiner(std::string& shader, Pica::Regs::TevStageConfig::Operation operation,
|
||||
const std::string& variable_name) {
|
||||
using Operation = Pica::Regs::TevStageConfig::Operation;
|
||||
|
||||
switch (operation) {
|
||||
case Operation::Replace:
|
||||
shader += variable_name + "[0]";
|
||||
break;
|
||||
case Operation::Modulate:
|
||||
shader += variable_name + "[0] * " + variable_name + "[1]";
|
||||
break;
|
||||
case Operation::Add:
|
||||
shader += "min(" + variable_name + "[0] + " + variable_name + "[1], vec3(1.0))";
|
||||
break;
|
||||
case Operation::AddSigned:
|
||||
shader += "clamp(" + variable_name + "[0] + " + variable_name + "[1] - vec3(0.5), vec3(0.0), vec3(1.0))";
|
||||
break;
|
||||
case Operation::Lerp:
|
||||
shader += variable_name + "[0] * " + variable_name + "[2] + " + variable_name + "[1] * (vec3(1.0) - " + variable_name + "[2])";
|
||||
break;
|
||||
case Operation::Subtract:
|
||||
shader += "max(" + variable_name + "[0] - " + variable_name + "[1], vec3(0.0))";
|
||||
break;
|
||||
case Operation::MultiplyThenAdd:
|
||||
shader += "min(" + variable_name + "[0] * " + variable_name + "[1] + " + variable_name + "[2], vec3(1.0))";
|
||||
break;
|
||||
case Operation::AddThenMultiply:
|
||||
shader += "min(" + variable_name + "[0] + " + variable_name + "[1], vec3(1.0)) * " + variable_name + "[2]";
|
||||
break;
|
||||
default:
|
||||
shader += "vec3(0.0)";
|
||||
LOG_CRITICAL(Render_OpenGL, "Unknown color comb op %u", operation);
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
static void AppendAlphaCombiner(std::string& shader, Pica::Regs::TevStageConfig::Operation operation,
|
||||
const std::string& variable_name) {
|
||||
using Operation = Pica::Regs::TevStageConfig::Operation;
|
||||
switch (operation) {
|
||||
case Operation::Replace:
|
||||
shader += variable_name + "[0]";
|
||||
break;
|
||||
case Operation::Modulate:
|
||||
shader += variable_name + "[0] * " + variable_name + "[1]";
|
||||
break;
|
||||
case Operation::Add:
|
||||
shader += "min(" + variable_name + "[0] + " + variable_name + "[1], 1.0)";
|
||||
break;
|
||||
case Operation::AddSigned:
|
||||
shader += "clamp(" + variable_name + "[0] + " + variable_name + "[1] - 0.5, 0.0, 1.0)";
|
||||
break;
|
||||
case Operation::Lerp:
|
||||
shader += variable_name + "[0] * " + variable_name + "[2] + " + variable_name + "[1] * (1.0 - " + variable_name + "[2])";
|
||||
break;
|
||||
case Operation::Subtract:
|
||||
shader += "max(" + variable_name + "[0] - " + variable_name + "[1], 0.0)";
|
||||
break;
|
||||
case Operation::MultiplyThenAdd:
|
||||
shader += "min(" + variable_name + "[0] * " + variable_name + "[1] + " + variable_name + "[2], 1.0)";
|
||||
break;
|
||||
case Operation::AddThenMultiply:
|
||||
shader += "min(" + variable_name + "[0] + " + variable_name + "[1], 1.0) * " + variable_name + "[2]";
|
||||
break;
|
||||
default:
|
||||
shader += "0.0";
|
||||
LOG_CRITICAL(Render_OpenGL, "Unknown alpha combiner op %u", operation);
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
static void AppendAlphaTestCondition(std::string& shader, Pica::Regs::CompareFunc func) {
|
||||
using CompareFunc = Pica::Regs::CompareFunc;
|
||||
switch (func) {
|
||||
case CompareFunc::Never:
|
||||
shader += "true";
|
||||
break;
|
||||
case CompareFunc::Always:
|
||||
shader += "false";
|
||||
break;
|
||||
case CompareFunc::Equal:
|
||||
shader += "int(g_last_tex_env_out.a * 255.0f) != alphatest_ref";
|
||||
break;
|
||||
case CompareFunc::NotEqual:
|
||||
shader += "int(g_last_tex_env_out.a * 255.0f) == alphatest_ref";
|
||||
break;
|
||||
case CompareFunc::LessThan:
|
||||
shader += "int(g_last_tex_env_out.a * 255.0f) >= alphatest_ref";
|
||||
break;
|
||||
case CompareFunc::LessThanOrEqual:
|
||||
shader += "int(g_last_tex_env_out.a * 255.0f) > alphatest_ref";
|
||||
break;
|
||||
case CompareFunc::GreaterThan:
|
||||
shader += "int(g_last_tex_env_out.a * 255.0f) <= alphatest_ref";
|
||||
break;
|
||||
case CompareFunc::GreaterThanOrEqual:
|
||||
shader += "int(g_last_tex_env_out.a * 255.0f) < alphatest_ref";
|
||||
break;
|
||||
default:
|
||||
shader += "false";
|
||||
LOG_CRITICAL(Render_OpenGL, "Unknown alpha test condition %u", func);
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
std::string GenerateFragmentShader(const ShaderCacheKey& config) {
|
||||
std::string shader = R"(
|
||||
#version 150 core
|
||||
|
||||
#define NUM_VTX_ATTR 7
|
||||
#define NUM_TEV_STAGES 6
|
||||
|
||||
in vec4 o[NUM_VTX_ATTR];
|
||||
out vec4 color;
|
||||
|
||||
uniform int alphatest_ref;
|
||||
uniform vec4 const_color[NUM_TEV_STAGES];
|
||||
uniform sampler2D tex[3];
|
||||
|
||||
uniform vec4 tev_combiner_buffer_color;
|
||||
|
||||
void main(void) {
|
||||
vec4 g_combiner_buffer = tev_combiner_buffer_color;
|
||||
vec4 g_last_tex_env_out = vec4(0.0, 0.0, 0.0, 0.0);
|
||||
)";
|
||||
|
||||
// Do not do any sort of processing if it's obvious we're not going to pass the alpha test
|
||||
if (config.alpha_test_func == Pica::Regs::CompareFunc::Never) {
|
||||
shader += "discard;";
|
||||
return shader;
|
||||
}
|
||||
|
||||
auto& tev_stages = config.tev_stages;
|
||||
for (unsigned tev_stage_index = 0; tev_stage_index < tev_stages.size(); ++tev_stage_index) {
|
||||
auto& tev_stage = tev_stages[tev_stage_index];
|
||||
if (!IsPassThroughTevStage(tev_stage)) {
|
||||
std::string index_name = std::to_string(tev_stage_index);
|
||||
|
||||
shader += "vec3 color_results_" + index_name + "[3] = vec3[3](";
|
||||
AppendColorModifier(shader, tev_stage.color_modifier1, tev_stage.color_source1, index_name);
|
||||
shader += ", ";
|
||||
AppendColorModifier(shader, tev_stage.color_modifier2, tev_stage.color_source2, index_name);
|
||||
shader += ", ";
|
||||
AppendColorModifier(shader, tev_stage.color_modifier3, tev_stage.color_source3, index_name);
|
||||
shader += ");\n";
|
||||
|
||||
shader += "vec3 color_output_" + index_name + " = ";
|
||||
AppendColorCombiner(shader, tev_stage.color_op, "color_results_" + index_name);
|
||||
shader += ";\n";
|
||||
|
||||
shader += "float alpha_results_" + index_name + "[3] = float[3](";
|
||||
AppendAlphaModifier(shader, tev_stage.alpha_modifier1, tev_stage.alpha_source1, index_name);
|
||||
shader += ", ";
|
||||
AppendAlphaModifier(shader, tev_stage.alpha_modifier2, tev_stage.alpha_source2, index_name);
|
||||
shader += ", ";
|
||||
AppendAlphaModifier(shader, tev_stage.alpha_modifier3, tev_stage.alpha_source3, index_name);
|
||||
shader += ");\n";
|
||||
|
||||
shader += "float alpha_output_" + index_name + " = ";
|
||||
AppendAlphaCombiner(shader, tev_stage.alpha_op, "alpha_results_" + index_name);
|
||||
shader += ";\n";
|
||||
|
||||
shader += "g_last_tex_env_out = vec4(min(color_output_" + index_name + " * " + std::to_string(tev_stage.GetColorMultiplier()) + ".0, 1.0), min(alpha_output_" + index_name + " * " + std::to_string(tev_stage.GetAlphaMultiplier()) + ".0, 1.0));\n";
|
||||
}
|
||||
|
||||
if (config.TevStageUpdatesCombinerBufferColor(tev_stage_index))
|
||||
shader += "g_combiner_buffer.rgb = g_last_tex_env_out.rgb;\n";
|
||||
|
||||
if (config.TevStageUpdatesCombinerBufferAlpha(tev_stage_index))
|
||||
shader += "g_combiner_buffer.a = g_last_tex_env_out.a;\n";
|
||||
}
|
||||
|
||||
if (config.alpha_test_func != Pica::Regs::CompareFunc::Always) {
|
||||
shader += "if (";
|
||||
AppendAlphaTestCondition(shader, config.alpha_test_func);
|
||||
shader += ") {\n discard;\n }\n";
|
||||
}
|
||||
|
||||
shader += "color = g_last_tex_env_out;\n}";
|
||||
return shader;
|
||||
}
|
||||
|
||||
std::string GenerateVertexShader() {
|
||||
static const std::string shader_str = R"(
|
||||
#version 150 core
|
||||
|
||||
#define NUM_VTX_ATTR 7
|
||||
|
||||
in vec4 vert_position;
|
||||
in vec4 vert_color;
|
||||
in vec2 vert_texcoords0;
|
||||
in vec2 vert_texcoords1;
|
||||
in vec2 vert_texcoords2;
|
||||
|
||||
out vec4 o[NUM_VTX_ATTR];
|
||||
|
||||
void main() {
|
||||
o[2] = vert_color;
|
||||
o[3] = vec4(vert_texcoords0.xy, vert_texcoords1.xy);
|
||||
o[5] = vec4(0.0, 0.0, vert_texcoords2.xy);
|
||||
|
||||
gl_Position = vec4(vert_position.x, -vert_position.y, -vert_position.z, vert_position.w);
|
||||
}
|
||||
)";
|
||||
return shader_str;
|
||||
}
|
||||
|
||||
} // namespace GLShaderGen
|
17
src/video_core/renderer_opengl/gl_shader_gen.h
Normal file
17
src/video_core/renderer_opengl/gl_shader_gen.h
Normal file
@ -0,0 +1,17 @@
|
||||
// Copyright 2015 Citra Emulator Project
|
||||
// Licensed under GPLv2 or any later version
|
||||
// Refer to the license.txt file included.
|
||||
|
||||
#pragma once
|
||||
|
||||
#include <string>
|
||||
|
||||
#include "video_core/renderer_opengl/gl_rasterizer.h"
|
||||
|
||||
namespace GLShader {
|
||||
|
||||
std::string GenerateVertexShader();
|
||||
|
||||
std::string GenerateFragmentShader(const ShaderCacheKey& config);
|
||||
|
||||
} // namespace GLShader
|
@ -2,22 +2,15 @@
|
||||
// Licensed under GPLv2 or any later version
|
||||
// Refer to the license.txt file included.
|
||||
|
||||
|
||||
#include "gl_shader_util.h"
|
||||
#include "gl_rasterizer.h"
|
||||
#include "common/logging/log.h"
|
||||
|
||||
#include "video_core/pica.h"
|
||||
|
||||
#include <algorithm>
|
||||
#include <vector>
|
||||
|
||||
#include "common/logging/log.h"
|
||||
#include "video_core/renderer_opengl/gl_shader_util.h"
|
||||
|
||||
namespace ShaderUtil {
|
||||
namespace GLShader {
|
||||
|
||||
GLuint LoadShaders(const char* vertex_shader, const char* fragment_shader) {
|
||||
GLuint LoadProgram(const char* vertex_shader, const char* fragment_shader) {
|
||||
|
||||
// Create the shaders
|
||||
GLuint vertex_shader_id = glCreateShader(GL_VERTEX_SHADER);
|
||||
@ -101,339 +94,4 @@ GLuint LoadShaders(const char* vertex_shader, const char* fragment_shader) {
|
||||
return program_id;
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
namespace ShaderCache
|
||||
{
|
||||
|
||||
static bool IsPassThroughTevStage(const Pica::Regs::TevStageConfig& stage) {
|
||||
return (stage.color_op == Pica::Regs::TevStageConfig::Operation::Replace &&
|
||||
stage.alpha_op == Pica::Regs::TevStageConfig::Operation::Replace &&
|
||||
stage.color_source1 == Pica::Regs::TevStageConfig::Source::Previous &&
|
||||
stage.alpha_source1 == Pica::Regs::TevStageConfig::Source::Previous &&
|
||||
stage.color_modifier1 == Pica::Regs::TevStageConfig::ColorModifier::SourceColor &&
|
||||
stage.alpha_modifier1 == Pica::Regs::TevStageConfig::AlphaModifier::SourceAlpha &&
|
||||
stage.GetColorMultiplier() == 1 &&
|
||||
stage.GetAlphaMultiplier() == 1);
|
||||
}
|
||||
|
||||
void AppendSource(std::string& shader, Pica::Regs::TevStageConfig::Source source, const std::string& index_name) {
|
||||
using Source = Pica::Regs::TevStageConfig::Source;
|
||||
switch (source) {
|
||||
case Source::PrimaryColor:
|
||||
shader += "o[2]";
|
||||
break;
|
||||
case Source::PrimaryFragmentColor:
|
||||
// HACK: Until we implement fragment lighting, use primary_color
|
||||
shader += "o[2]";
|
||||
break;
|
||||
case Source::SecondaryFragmentColor:
|
||||
// HACK: Until we implement fragment lighting, use zero
|
||||
shader += "vec4(0.0, 0.0, 0.0, 0.0)";
|
||||
break;
|
||||
case Source::Texture0:
|
||||
shader += "texture(tex[0], o[3].xy)";
|
||||
break;
|
||||
case Source::Texture1:
|
||||
shader += "texture(tex[1], o[3].zw)";
|
||||
break;
|
||||
case Source::Texture2: // TODO: Unverified
|
||||
shader += "texture(tex[2], o[5].zw)";
|
||||
break;
|
||||
case Source::PreviousBuffer:
|
||||
shader += "g_combiner_buffer";
|
||||
break;
|
||||
case Source::Constant:
|
||||
shader += "const_color[" + index_name + "]";
|
||||
break;
|
||||
case Source::Previous:
|
||||
shader += "g_last_tex_env_out";
|
||||
break;
|
||||
default:
|
||||
shader += "vec4(0.0)";
|
||||
LOG_CRITICAL(Render_OpenGL, "Unknown source op %u", source);
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
void AppendColorModifier(std::string& shader, Pica::Regs::TevStageConfig::ColorModifier modifier, Pica::Regs::TevStageConfig::Source source, const std::string& index_name) {
|
||||
using ColorModifier = Pica::Regs::TevStageConfig::ColorModifier;
|
||||
switch (modifier) {
|
||||
case ColorModifier::SourceColor:
|
||||
AppendSource(shader, source, index_name);
|
||||
shader += ".rgb";
|
||||
break;
|
||||
case ColorModifier::OneMinusSourceColor:
|
||||
shader += "vec3(1.0) - ";
|
||||
AppendSource(shader, source, index_name);
|
||||
shader += ".rgb";
|
||||
break;
|
||||
case ColorModifier::SourceAlpha:
|
||||
AppendSource(shader, source, index_name);
|
||||
shader += ".aaa";
|
||||
break;
|
||||
case ColorModifier::OneMinusSourceAlpha:
|
||||
shader += "vec3(1.0) - ";
|
||||
AppendSource(shader, source, index_name);
|
||||
shader += ".aaa";
|
||||
break;
|
||||
case ColorModifier::SourceRed:
|
||||
AppendSource(shader, source, index_name);
|
||||
shader += ".rrr";
|
||||
break;
|
||||
case ColorModifier::OneMinusSourceRed:
|
||||
shader += "vec3(1.0) - ";
|
||||
AppendSource(shader, source, index_name);
|
||||
shader += ".rrr";
|
||||
break;
|
||||
case ColorModifier::SourceGreen:
|
||||
AppendSource(shader, source, index_name);
|
||||
shader += ".ggg";
|
||||
break;
|
||||
case ColorModifier::OneMinusSourceGreen:
|
||||
shader += "vec3(1.0) - ";
|
||||
AppendSource(shader, source, index_name);
|
||||
shader += ".ggg";
|
||||
break;
|
||||
case ColorModifier::SourceBlue:
|
||||
AppendSource(shader, source, index_name);
|
||||
shader += ".bbb";
|
||||
break;
|
||||
case ColorModifier::OneMinusSourceBlue:
|
||||
shader += "vec3(1.0) - ";
|
||||
AppendSource(shader, source, index_name);
|
||||
shader += ".bbb";
|
||||
break;
|
||||
default:
|
||||
shader += "vec3(0.0)";
|
||||
LOG_CRITICAL(Render_OpenGL, "Unknown color modifier op %u", modifier);
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
void AppendAlphaModifier(std::string& shader, Pica::Regs::TevStageConfig::AlphaModifier modifier, Pica::Regs::TevStageConfig::Source source, const std::string& index_name) {
|
||||
using AlphaModifier = Pica::Regs::TevStageConfig::AlphaModifier;
|
||||
switch (modifier) {
|
||||
case AlphaModifier::SourceAlpha:
|
||||
AppendSource(shader, source, index_name);
|
||||
shader += ".a";
|
||||
break;
|
||||
case AlphaModifier::OneMinusSourceAlpha:
|
||||
shader += "1.0 - ";
|
||||
AppendSource(shader, source, index_name);
|
||||
shader += ".a";
|
||||
break;
|
||||
case AlphaModifier::SourceRed:
|
||||
AppendSource(shader, source, index_name);
|
||||
shader += ".r";
|
||||
break;
|
||||
case AlphaModifier::OneMinusSourceRed:
|
||||
shader += "1.0 - ";
|
||||
AppendSource(shader, source, index_name);
|
||||
shader += ".r";
|
||||
break;
|
||||
case AlphaModifier::SourceGreen:
|
||||
AppendSource(shader, source, index_name);
|
||||
shader += ".g";
|
||||
break;
|
||||
case AlphaModifier::OneMinusSourceGreen:
|
||||
shader += "1.0 - ";
|
||||
AppendSource(shader, source, index_name);
|
||||
shader += ".g";
|
||||
break;
|
||||
case AlphaModifier::SourceBlue:
|
||||
AppendSource(shader, source, index_name);
|
||||
shader += ".b";
|
||||
break;
|
||||
case AlphaModifier::OneMinusSourceBlue:
|
||||
shader += "1.0 - ";
|
||||
AppendSource(shader, source, index_name);
|
||||
shader += ".b";
|
||||
break;
|
||||
default:
|
||||
shader += "vec3(0.0)";
|
||||
LOG_CRITICAL(Render_OpenGL, "Unknown alpha modifier op %u", modifier);
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
void AppendColorCombiner(std::string& shader, Pica::Regs::TevStageConfig::Operation operation, const std::string& variable_name) {
|
||||
using Operation = Pica::Regs::TevStageConfig::Operation;
|
||||
|
||||
switch (operation) {
|
||||
case Operation::Replace:
|
||||
shader += variable_name + "[0]";
|
||||
break;
|
||||
case Operation::Modulate:
|
||||
shader += variable_name + "[0] * " + variable_name + "[1]";
|
||||
break;
|
||||
case Operation::Add:
|
||||
shader += "min(" + variable_name + "[0] + " + variable_name + "[1], vec3(1.0))";
|
||||
break;
|
||||
case Operation::AddSigned:
|
||||
shader += "clamp(" + variable_name + "[0] + " + variable_name + "[1] - vec3(0.5), vec3(0.0), vec3(1.0))";
|
||||
break;
|
||||
case Operation::Lerp:
|
||||
shader += variable_name + "[0] * " + variable_name + "[2] + " + variable_name + "[1] * (vec3(1.0) - " + variable_name + "[2])";
|
||||
break;
|
||||
case Operation::Subtract:
|
||||
shader += "max(" + variable_name + "[0] - " + variable_name + "[1], vec3(0.0))";
|
||||
break;
|
||||
case Operation::MultiplyThenAdd:
|
||||
shader += "min(" + variable_name + "[0] * " + variable_name + "[1] + " + variable_name + "[2], vec3(1.0))";
|
||||
break;
|
||||
case Operation::AddThenMultiply:
|
||||
shader += "min(" + variable_name + "[0] + " + variable_name + "[1], vec3(1.0)) * " + variable_name + "[2]";
|
||||
break;
|
||||
default:
|
||||
shader += "vec3(0.0)";
|
||||
LOG_CRITICAL(Render_OpenGL, "Unknown color comb op %u", operation);
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
void AppendAlphaCombiner(std::string& shader, Pica::Regs::TevStageConfig::Operation operation, const std::string& variable_name) {
|
||||
using Operation = Pica::Regs::TevStageConfig::Operation;
|
||||
switch (operation) {
|
||||
case Operation::Replace:
|
||||
shader += variable_name + "[0]";
|
||||
break;
|
||||
case Operation::Modulate:
|
||||
shader += variable_name + "[0] * " + variable_name + "[1]";
|
||||
break;
|
||||
case Operation::Add:
|
||||
shader += "min(" + variable_name + "[0] + " + variable_name + "[1], 1.0)";
|
||||
break;
|
||||
case Operation::AddSigned:
|
||||
shader += "clamp(" + variable_name + "[0] + " + variable_name + "[1] - 0.5, 0.0, 1.0)";
|
||||
break;
|
||||
case Operation::Lerp:
|
||||
shader += variable_name + "[0] * " + variable_name + "[2] + " + variable_name + "[1] * (1.0 - " + variable_name + "[2])";
|
||||
break;
|
||||
case Operation::Subtract:
|
||||
shader += "max(" + variable_name + "[0] - " + variable_name + "[1], 0.0)";
|
||||
break;
|
||||
case Operation::MultiplyThenAdd:
|
||||
shader += "min(" + variable_name + "[0] * " + variable_name + "[1] + " + variable_name + "[2], 1.0)";
|
||||
break;
|
||||
case Operation::AddThenMultiply:
|
||||
shader += "min(" + variable_name + "[0] + " + variable_name + "[1], 1.0) * " + variable_name + "[2]";
|
||||
break;
|
||||
default:
|
||||
shader += "0.0";
|
||||
LOG_CRITICAL(Render_OpenGL, "Unknown alpha combiner op %u", operation);
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
void AppendAlphaTestCondition(std::string& shader, Pica::Regs::CompareFunc func) {
|
||||
using CompareFunc = Pica::Regs::CompareFunc;
|
||||
switch (func) {
|
||||
case CompareFunc::Never:
|
||||
shader += "true";
|
||||
break;
|
||||
case CompareFunc::Always:
|
||||
shader += "false";
|
||||
break;
|
||||
case CompareFunc::Equal:
|
||||
shader += "int(g_last_tex_env_out.a * 255.0f) != alphatest_ref";
|
||||
break;
|
||||
case CompareFunc::NotEqual:
|
||||
shader += "int(g_last_tex_env_out.a * 255.0f) == alphatest_ref";
|
||||
break;
|
||||
case CompareFunc::LessThan:
|
||||
shader += "int(g_last_tex_env_out.a * 255.0f) >= alphatest_ref";
|
||||
break;
|
||||
case CompareFunc::LessThanOrEqual:
|
||||
shader += "int(g_last_tex_env_out.a * 255.0f) > alphatest_ref";
|
||||
break;
|
||||
case CompareFunc::GreaterThan:
|
||||
shader += "int(g_last_tex_env_out.a * 255.0f) <= alphatest_ref";
|
||||
break;
|
||||
case CompareFunc::GreaterThanOrEqual:
|
||||
shader += "int(g_last_tex_env_out.a * 255.0f) < alphatest_ref";
|
||||
break;
|
||||
default:
|
||||
shader += "false";
|
||||
LOG_CRITICAL(Render_OpenGL, "Unknown alpha test condition %u", func);
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
std::string GenerateFragmentShader(const ShaderCacheKey& config) {
|
||||
std::string shader = R"(
|
||||
#version 150 core
|
||||
|
||||
#define NUM_VTX_ATTR 7
|
||||
#define NUM_TEV_STAGES 6
|
||||
|
||||
in vec4 o[NUM_VTX_ATTR];
|
||||
out vec4 color;
|
||||
|
||||
uniform int alphatest_ref;
|
||||
uniform vec4 const_color[NUM_TEV_STAGES];
|
||||
uniform sampler2D tex[3];
|
||||
|
||||
uniform vec4 tev_combiner_buffer_color;
|
||||
|
||||
void main(void) {
|
||||
vec4 g_combiner_buffer = tev_combiner_buffer_color;
|
||||
vec4 g_last_tex_env_out = vec4(0.0, 0.0, 0.0, 0.0);
|
||||
)";
|
||||
|
||||
// Do not do any sort of processing if it's obvious we're not going to pass the alpha test
|
||||
if (config.alpha_test_func == Pica::Regs::CompareFunc::Never) {
|
||||
shader += "discard;";
|
||||
return shader;
|
||||
}
|
||||
|
||||
auto& tev_stages = config.tev_stages;
|
||||
for (unsigned tev_stage_index = 0; tev_stage_index < tev_stages.size(); ++tev_stage_index) {
|
||||
auto& tev_stage = tev_stages[tev_stage_index];
|
||||
if (!IsPassThroughTevStage(tev_stage)) {
|
||||
std::string index_name = std::to_string(tev_stage_index);
|
||||
|
||||
shader += "vec3 color_results_" + index_name + "[3] = vec3[3](";
|
||||
AppendColorModifier(shader, tev_stage.color_modifier1, tev_stage.color_source1, index_name);
|
||||
shader += ", ";
|
||||
AppendColorModifier(shader, tev_stage.color_modifier2, tev_stage.color_source2, index_name);
|
||||
shader += ", ";
|
||||
AppendColorModifier(shader, tev_stage.color_modifier3, tev_stage.color_source3, index_name);
|
||||
shader += ");\n";
|
||||
|
||||
shader += "vec3 color_output_" + index_name + " = ";
|
||||
AppendColorCombiner(shader, tev_stage.color_op, "color_results_" + index_name);
|
||||
shader += ";\n";
|
||||
|
||||
shader += "float alpha_results_" + index_name + "[3] = float[3](";
|
||||
AppendAlphaModifier(shader, tev_stage.alpha_modifier1, tev_stage.alpha_source1, index_name);
|
||||
shader += ", ";
|
||||
AppendAlphaModifier(shader, tev_stage.alpha_modifier2, tev_stage.alpha_source2, index_name);
|
||||
shader += ", ";
|
||||
AppendAlphaModifier(shader, tev_stage.alpha_modifier3, tev_stage.alpha_source3, index_name);
|
||||
shader += ");\n";
|
||||
|
||||
shader += "float alpha_output_" + index_name + " = ";
|
||||
AppendAlphaCombiner(shader, tev_stage.alpha_op, "alpha_results_" + index_name);
|
||||
shader += ";\n";
|
||||
|
||||
shader += "g_last_tex_env_out = vec4(min(color_output_" + index_name + " * " + std::to_string(tev_stage.GetColorMultiplier()) + ".0, 1.0), min(alpha_output_" + index_name + " * " + std::to_string(tev_stage.GetAlphaMultiplier()) + ".0, 1.0));\n";
|
||||
}
|
||||
|
||||
if (config.TevStageUpdatesCombinerBufferColor(tev_stage_index))
|
||||
shader += "g_combiner_buffer.rgb = g_last_tex_env_out.rgb;\n";
|
||||
|
||||
if (config.TevStageUpdatesCombinerBufferAlpha(tev_stage_index))
|
||||
shader += "g_combiner_buffer.a = g_last_tex_env_out.a;\n";
|
||||
}
|
||||
|
||||
if (config.alpha_test_func != Pica::Regs::CompareFunc::Always) {
|
||||
shader += "if (";
|
||||
AppendAlphaTestCondition(shader, config.alpha_test_func);
|
||||
shader += ") {\n discard;\n }\n";
|
||||
}
|
||||
|
||||
shader += "color = g_last_tex_env_out;\n}";
|
||||
return shader;
|
||||
}
|
||||
}
|
||||
} // namespace GLShader
|
||||
|
@ -6,7 +6,7 @@
|
||||
|
||||
#include <glad/glad.h>
|
||||
|
||||
namespace ShaderUtil {
|
||||
namespace GLShader {
|
||||
|
||||
enum Attributes {
|
||||
ATTRIBUTE_POSITION = 0,
|
||||
@ -14,6 +14,6 @@ enum Attributes {
|
||||
ATTRIBUTE_TEXCOORDS = 2,
|
||||
};
|
||||
|
||||
GLuint LoadShaders(const char* vertex_file_path, const char* fragment_file_path);
|
||||
GLuint LoadProgram(const char* vertex_file_path, const char* fragment_file_path);
|
||||
|
||||
}
|
||||
} // namespace
|
||||
|
@ -1,339 +0,0 @@
|
||||
// Copyright 2014 Citra Emulator Project
|
||||
// Licensed under GPLv2 or any later version
|
||||
// Refer to the license.txt file included.
|
||||
|
||||
#pragma once
|
||||
|
||||
namespace GLShaders {
|
||||
|
||||
const char g_vertex_shader[] = R"(
|
||||
#version 150 core
|
||||
|
||||
in vec2 vert_position;
|
||||
in vec2 vert_tex_coord;
|
||||
out vec2 frag_tex_coord;
|
||||
|
||||
// This is a truncated 3x3 matrix for 2D transformations:
|
||||
// The upper-left 2x2 submatrix performs scaling/rotation/mirroring.
|
||||
// The third column performs translation.
|
||||
// The third row could be used for projection, which we don't need in 2D. It hence is assumed to
|
||||
// implicitly be [0, 0, 1]
|
||||
uniform mat3x2 modelview_matrix;
|
||||
|
||||
void main() {
|
||||
// Multiply input position by the rotscale part of the matrix and then manually translate by
|
||||
// the last column. This is equivalent to using a full 3x3 matrix and expanding the vector
|
||||
// to `vec3(vert_position.xy, 1.0)`
|
||||
gl_Position = vec4(mat2(modelview_matrix) * vert_position + modelview_matrix[2], 0.0, 1.0);
|
||||
frag_tex_coord = vert_tex_coord;
|
||||
}
|
||||
)";
|
||||
|
||||
const char g_fragment_shader[] = R"(
|
||||
#version 150 core
|
||||
|
||||
in vec2 frag_tex_coord;
|
||||
out vec4 color;
|
||||
|
||||
uniform sampler2D color_texture;
|
||||
|
||||
void main() {
|
||||
color = texture(color_texture, frag_tex_coord);
|
||||
}
|
||||
)";
|
||||
|
||||
const char g_vertex_shader_hw[] = R"(
|
||||
#version 150 core
|
||||
|
||||
#define NUM_VTX_ATTR 7
|
||||
|
||||
in vec4 vert_position;
|
||||
in vec4 vert_color;
|
||||
in vec2 vert_texcoords0;
|
||||
in vec2 vert_texcoords1;
|
||||
in vec2 vert_texcoords2;
|
||||
|
||||
out vec4 o[NUM_VTX_ATTR];
|
||||
|
||||
void main() {
|
||||
o[2] = vert_color;
|
||||
o[3] = vec4(vert_texcoords0.xy, vert_texcoords1.xy);
|
||||
o[5] = vec4(0.0, 0.0, vert_texcoords2.xy);
|
||||
|
||||
gl_Position = vec4(vert_position.x, -vert_position.y, -vert_position.z, vert_position.w);
|
||||
}
|
||||
)";
|
||||
|
||||
// TODO: Create a shader constructor and cache that builds this program with minimal conditionals instead of using tev_cfg uniforms
|
||||
const char g_fragment_shader_hw[] = R"(
|
||||
#version 150 core
|
||||
|
||||
#define NUM_VTX_ATTR 7
|
||||
#define NUM_TEV_STAGES 6
|
||||
|
||||
#define SOURCE_PRIMARYCOLOR 0x0
|
||||
#define SOURCE_PRIMARYFRAGMENTCOLOR 0x1
|
||||
#define SOURCE_SECONDARYFRAGMENTCOLOR 0x2
|
||||
#define SOURCE_TEXTURE0 0x3
|
||||
#define SOURCE_TEXTURE1 0x4
|
||||
#define SOURCE_TEXTURE2 0x5
|
||||
#define SOURCE_TEXTURE3 0x6
|
||||
#define SOURCE_PREVIOUSBUFFER 0xd
|
||||
#define SOURCE_CONSTANT 0xe
|
||||
#define SOURCE_PREVIOUS 0xf
|
||||
|
||||
#define COLORMODIFIER_SOURCECOLOR 0x0
|
||||
#define COLORMODIFIER_ONEMINUSSOURCECOLOR 0x1
|
||||
#define COLORMODIFIER_SOURCEALPHA 0x2
|
||||
#define COLORMODIFIER_ONEMINUSSOURCEALPHA 0x3
|
||||
#define COLORMODIFIER_SOURCERED 0x4
|
||||
#define COLORMODIFIER_ONEMINUSSOURCERED 0x5
|
||||
#define COLORMODIFIER_SOURCEGREEN 0x8
|
||||
#define COLORMODIFIER_ONEMINUSSOURCEGREEN 0x9
|
||||
#define COLORMODIFIER_SOURCEBLUE 0xc
|
||||
#define COLORMODIFIER_ONEMINUSSOURCEBLUE 0xd
|
||||
|
||||
#define ALPHAMODIFIER_SOURCEALPHA 0x0
|
||||
#define ALPHAMODIFIER_ONEMINUSSOURCEALPHA 0x1
|
||||
#define ALPHAMODIFIER_SOURCERED 0x2
|
||||
#define ALPHAMODIFIER_ONEMINUSSOURCERED 0x3
|
||||
#define ALPHAMODIFIER_SOURCEGREEN 0x4
|
||||
#define ALPHAMODIFIER_ONEMINUSSOURCEGREEN 0x5
|
||||
#define ALPHAMODIFIER_SOURCEBLUE 0x6
|
||||
#define ALPHAMODIFIER_ONEMINUSSOURCEBLUE 0x7
|
||||
|
||||
#define OPERATION_REPLACE 0
|
||||
#define OPERATION_MODULATE 1
|
||||
#define OPERATION_ADD 2
|
||||
#define OPERATION_ADDSIGNED 3
|
||||
#define OPERATION_LERP 4
|
||||
#define OPERATION_SUBTRACT 5
|
||||
#define OPERATION_MULTIPLYTHENADD 8
|
||||
#define OPERATION_ADDTHENMULTIPLY 9
|
||||
|
||||
#define COMPAREFUNC_NEVER 0
|
||||
#define COMPAREFUNC_ALWAYS 1
|
||||
#define COMPAREFUNC_EQUAL 2
|
||||
#define COMPAREFUNC_NOTEQUAL 3
|
||||
#define COMPAREFUNC_LESSTHAN 4
|
||||
#define COMPAREFUNC_LESSTHANOREQUAL 5
|
||||
#define COMPAREFUNC_GREATERTHAN 6
|
||||
#define COMPAREFUNC_GREATERTHANOREQUAL 7
|
||||
|
||||
in vec4 o[NUM_VTX_ATTR];
|
||||
out vec4 color;
|
||||
|
||||
uniform bool alphatest_enabled;
|
||||
uniform int alphatest_func;
|
||||
uniform float alphatest_ref;
|
||||
|
||||
uniform sampler2D tex[3];
|
||||
|
||||
uniform vec4 tev_combiner_buffer_color;
|
||||
|
||||
struct TEVConfig
|
||||
{
|
||||
bool enabled;
|
||||
ivec3 color_sources;
|
||||
ivec3 alpha_sources;
|
||||
ivec3 color_modifiers;
|
||||
ivec3 alpha_modifiers;
|
||||
ivec2 color_alpha_op;
|
||||
ivec2 color_alpha_multiplier;
|
||||
vec4 const_color;
|
||||
bvec2 updates_combiner_buffer_color_alpha;
|
||||
};
|
||||
|
||||
uniform TEVConfig tev_cfgs[NUM_TEV_STAGES];
|
||||
|
||||
vec4 g_combiner_buffer;
|
||||
vec4 g_last_tex_env_out;
|
||||
vec4 g_const_color;
|
||||
|
||||
vec4 GetSource(int source) {
|
||||
if (source == SOURCE_PRIMARYCOLOR) {
|
||||
return o[2];
|
||||
} else if (source == SOURCE_PRIMARYFRAGMENTCOLOR) {
|
||||
// HACK: Until we implement fragment lighting, use primary_color
|
||||
return o[2];
|
||||
} else if (source == SOURCE_SECONDARYFRAGMENTCOLOR) {
|
||||
// HACK: Until we implement fragment lighting, use zero
|
||||
return vec4(0.0, 0.0, 0.0, 0.0);
|
||||
} else if (source == SOURCE_TEXTURE0) {
|
||||
return texture(tex[0], o[3].xy);
|
||||
} else if (source == SOURCE_TEXTURE1) {
|
||||
return texture(tex[1], o[3].zw);
|
||||
} else if (source == SOURCE_TEXTURE2) {
|
||||
// TODO: Unverified
|
||||
return texture(tex[2], o[5].zw);
|
||||
} else if (source == SOURCE_TEXTURE3) {
|
||||
// TODO: no 4th texture?
|
||||
} else if (source == SOURCE_PREVIOUSBUFFER) {
|
||||
return g_combiner_buffer;
|
||||
} else if (source == SOURCE_CONSTANT) {
|
||||
return g_const_color;
|
||||
} else if (source == SOURCE_PREVIOUS) {
|
||||
return g_last_tex_env_out;
|
||||
}
|
||||
|
||||
return vec4(0.0);
|
||||
}
|
||||
|
||||
vec3 GetColorModifier(int factor, vec4 color) {
|
||||
if (factor == COLORMODIFIER_SOURCECOLOR) {
|
||||
return color.rgb;
|
||||
} else if (factor == COLORMODIFIER_ONEMINUSSOURCECOLOR) {
|
||||
return vec3(1.0) - color.rgb;
|
||||
} else if (factor == COLORMODIFIER_SOURCEALPHA) {
|
||||
return color.aaa;
|
||||
} else if (factor == COLORMODIFIER_ONEMINUSSOURCEALPHA) {
|
||||
return vec3(1.0) - color.aaa;
|
||||
} else if (factor == COLORMODIFIER_SOURCERED) {
|
||||
return color.rrr;
|
||||
} else if (factor == COLORMODIFIER_ONEMINUSSOURCERED) {
|
||||
return vec3(1.0) - color.rrr;
|
||||
} else if (factor == COLORMODIFIER_SOURCEGREEN) {
|
||||
return color.ggg;
|
||||
} else if (factor == COLORMODIFIER_ONEMINUSSOURCEGREEN) {
|
||||
return vec3(1.0) - color.ggg;
|
||||
} else if (factor == COLORMODIFIER_SOURCEBLUE) {
|
||||
return color.bbb;
|
||||
} else if (factor == COLORMODIFIER_ONEMINUSSOURCEBLUE) {
|
||||
return vec3(1.0) - color.bbb;
|
||||
}
|
||||
|
||||
return vec3(0.0);
|
||||
}
|
||||
|
||||
float GetAlphaModifier(int factor, vec4 color) {
|
||||
if (factor == ALPHAMODIFIER_SOURCEALPHA) {
|
||||
return color.a;
|
||||
} else if (factor == ALPHAMODIFIER_ONEMINUSSOURCEALPHA) {
|
||||
return 1.0 - color.a;
|
||||
} else if (factor == ALPHAMODIFIER_SOURCERED) {
|
||||
return color.r;
|
||||
} else if (factor == ALPHAMODIFIER_ONEMINUSSOURCERED) {
|
||||
return 1.0 - color.r;
|
||||
} else if (factor == ALPHAMODIFIER_SOURCEGREEN) {
|
||||
return color.g;
|
||||
} else if (factor == ALPHAMODIFIER_ONEMINUSSOURCEGREEN) {
|
||||
return 1.0 - color.g;
|
||||
} else if (factor == ALPHAMODIFIER_SOURCEBLUE) {
|
||||
return color.b;
|
||||
} else if (factor == ALPHAMODIFIER_ONEMINUSSOURCEBLUE) {
|
||||
return 1.0 - color.b;
|
||||
}
|
||||
|
||||
return 0.0;
|
||||
}
|
||||
|
||||
vec3 ColorCombine(int op, vec3 color[3]) {
|
||||
if (op == OPERATION_REPLACE) {
|
||||
return color[0];
|
||||
} else if (op == OPERATION_MODULATE) {
|
||||
return color[0] * color[1];
|
||||
} else if (op == OPERATION_ADD) {
|
||||
return min(color[0] + color[1], 1.0);
|
||||
} else if (op == OPERATION_ADDSIGNED) {
|
||||
return clamp(color[0] + color[1] - vec3(0.5), 0.0, 1.0);
|
||||
} else if (op == OPERATION_LERP) {
|
||||
return color[0] * color[2] + color[1] * (vec3(1.0) - color[2]);
|
||||
} else if (op == OPERATION_SUBTRACT) {
|
||||
return max(color[0] - color[1], 0.0);
|
||||
} else if (op == OPERATION_MULTIPLYTHENADD) {
|
||||
return min(color[0] * color[1] + color[2], 1.0);
|
||||
} else if (op == OPERATION_ADDTHENMULTIPLY) {
|
||||
return min(color[0] + color[1], 1.0) * color[2];
|
||||
}
|
||||
|
||||
return vec3(0.0);
|
||||
}
|
||||
|
||||
float AlphaCombine(int op, float alpha[3]) {
|
||||
if (op == OPERATION_REPLACE) {
|
||||
return alpha[0];
|
||||
} else if (op == OPERATION_MODULATE) {
|
||||
return alpha[0] * alpha[1];
|
||||
} else if (op == OPERATION_ADD) {
|
||||
return min(alpha[0] + alpha[1], 1.0);
|
||||
} else if (op == OPERATION_ADDSIGNED) {
|
||||
return clamp(alpha[0] + alpha[1] - 0.5, 0.0, 1.0);
|
||||
} else if (op == OPERATION_LERP) {
|
||||
return alpha[0] * alpha[2] + alpha[1] * (1.0 - alpha[2]);
|
||||
} else if (op == OPERATION_SUBTRACT) {
|
||||
return max(alpha[0] - alpha[1], 0.0);
|
||||
} else if (op == OPERATION_MULTIPLYTHENADD) {
|
||||
return min(alpha[0] * alpha[1] + alpha[2], 1.0);
|
||||
} else if (op == OPERATION_ADDTHENMULTIPLY) {
|
||||
return min(alpha[0] + alpha[1], 1.0) * alpha[2];
|
||||
}
|
||||
|
||||
return 0.0;
|
||||
}
|
||||
|
||||
void main(void) {
|
||||
g_combiner_buffer = tev_combiner_buffer_color;
|
||||
|
||||
for (int tex_env_idx = 0; tex_env_idx < NUM_TEV_STAGES; ++tex_env_idx) {
|
||||
if (tev_cfgs[tex_env_idx].enabled) {
|
||||
g_const_color = tev_cfgs[tex_env_idx].const_color;
|
||||
|
||||
vec3 color_results[3] = vec3[3](GetColorModifier(tev_cfgs[tex_env_idx].color_modifiers.x, GetSource(tev_cfgs[tex_env_idx].color_sources.x)),
|
||||
GetColorModifier(tev_cfgs[tex_env_idx].color_modifiers.y, GetSource(tev_cfgs[tex_env_idx].color_sources.y)),
|
||||
GetColorModifier(tev_cfgs[tex_env_idx].color_modifiers.z, GetSource(tev_cfgs[tex_env_idx].color_sources.z)));
|
||||
vec3 color_output = ColorCombine(tev_cfgs[tex_env_idx].color_alpha_op.x, color_results);
|
||||
|
||||
float alpha_results[3] = float[3](GetAlphaModifier(tev_cfgs[tex_env_idx].alpha_modifiers.x, GetSource(tev_cfgs[tex_env_idx].alpha_sources.x)),
|
||||
GetAlphaModifier(tev_cfgs[tex_env_idx].alpha_modifiers.y, GetSource(tev_cfgs[tex_env_idx].alpha_sources.y)),
|
||||
GetAlphaModifier(tev_cfgs[tex_env_idx].alpha_modifiers.z, GetSource(tev_cfgs[tex_env_idx].alpha_sources.z)));
|
||||
float alpha_output = AlphaCombine(tev_cfgs[tex_env_idx].color_alpha_op.y, alpha_results);
|
||||
|
||||
g_last_tex_env_out = vec4(min(color_output * tev_cfgs[tex_env_idx].color_alpha_multiplier.x, 1.0), min(alpha_output * tev_cfgs[tex_env_idx].color_alpha_multiplier.y, 1.0));
|
||||
}
|
||||
|
||||
if (tev_cfgs[tex_env_idx].updates_combiner_buffer_color_alpha.x) {
|
||||
g_combiner_buffer.rgb = g_last_tex_env_out.rgb;
|
||||
}
|
||||
|
||||
if (tev_cfgs[tex_env_idx].updates_combiner_buffer_color_alpha.y) {
|
||||
g_combiner_buffer.a = g_last_tex_env_out.a;
|
||||
}
|
||||
}
|
||||
|
||||
if (alphatest_enabled) {
|
||||
if (alphatest_func == COMPAREFUNC_NEVER) {
|
||||
discard;
|
||||
} else if (alphatest_func == COMPAREFUNC_ALWAYS) {
|
||||
|
||||
} else if (alphatest_func == COMPAREFUNC_EQUAL) {
|
||||
if (g_last_tex_env_out.a != alphatest_ref) {
|
||||
discard;
|
||||
}
|
||||
} else if (alphatest_func == COMPAREFUNC_NOTEQUAL) {
|
||||
if (g_last_tex_env_out.a == alphatest_ref) {
|
||||
discard;
|
||||
}
|
||||
} else if (alphatest_func == COMPAREFUNC_LESSTHAN) {
|
||||
if (g_last_tex_env_out.a >= alphatest_ref) {
|
||||
discard;
|
||||
}
|
||||
} else if (alphatest_func == COMPAREFUNC_LESSTHANOREQUAL) {
|
||||
if (g_last_tex_env_out.a > alphatest_ref) {
|
||||
discard;
|
||||
}
|
||||
} else if (alphatest_func == COMPAREFUNC_GREATERTHAN) {
|
||||
if (g_last_tex_env_out.a <= alphatest_ref) {
|
||||
discard;
|
||||
}
|
||||
} else if (alphatest_func == COMPAREFUNC_GREATERTHANOREQUAL) {
|
||||
if (g_last_tex_env_out.a < alphatest_ref) {
|
||||
discard;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
color = g_last_tex_env_out;
|
||||
}
|
||||
)";
|
||||
|
||||
}
|
@ -21,9 +21,44 @@
|
||||
#include "video_core/debug_utils/debug_utils.h"
|
||||
#include "video_core/renderer_opengl/gl_rasterizer.h"
|
||||
#include "video_core/renderer_opengl/gl_shader_util.h"
|
||||
#include "video_core/renderer_opengl/gl_shaders.h"
|
||||
#include "video_core/renderer_opengl/renderer_opengl.h"
|
||||
|
||||
static const char vertex_shader[] = R"(
|
||||
#version 150 core
|
||||
|
||||
in vec2 vert_position;
|
||||
in vec2 vert_tex_coord;
|
||||
out vec2 frag_tex_coord;
|
||||
|
||||
// This is a truncated 3x3 matrix for 2D transformations:
|
||||
// The upper-left 2x2 submatrix performs scaling/rotation/mirroring.
|
||||
// The third column performs translation.
|
||||
// The third row could be used for projection, which we don't need in 2D. It hence is assumed to
|
||||
// implicitly be [0, 0, 1]
|
||||
uniform mat3x2 modelview_matrix;
|
||||
|
||||
void main() {
|
||||
// Multiply input position by the rotscale part of the matrix and then manually translate by
|
||||
// the last column. This is equivalent to using a full 3x3 matrix and expanding the vector
|
||||
// to `vec3(vert_position.xy, 1.0)`
|
||||
gl_Position = vec4(mat2(modelview_matrix) * vert_position + modelview_matrix[2], 0.0, 1.0);
|
||||
frag_tex_coord = vert_tex_coord;
|
||||
}
|
||||
)";
|
||||
|
||||
static const char fragment_shader[] = R"(
|
||||
#version 150 core
|
||||
|
||||
in vec2 frag_tex_coord;
|
||||
out vec4 color;
|
||||
|
||||
uniform sampler2D color_texture;
|
||||
|
||||
void main() {
|
||||
color = texture(color_texture, frag_tex_coord);
|
||||
}
|
||||
)";
|
||||
|
||||
/**
|
||||
* Vertex structure that the drawn screen rectangles are composed of.
|
||||
*/
|
||||
@ -207,7 +242,7 @@ void RendererOpenGL::InitOpenGLObjects() {
|
||||
glClearColor(Settings::values.bg_red, Settings::values.bg_green, Settings::values.bg_blue, 0.0f);
|
||||
|
||||
// Link shaders and get variable locations
|
||||
program_id = ShaderUtil::LoadShaders(GLShaders::g_vertex_shader, GLShaders::g_fragment_shader);
|
||||
program_id = GLShader::LoadProgram(vertex_shader, fragment_shader);
|
||||
uniform_modelview_matrix = glGetUniformLocation(program_id, "modelview_matrix");
|
||||
uniform_color_texture = glGetUniformLocation(program_id, "color_texture");
|
||||
attrib_position = glGetAttribLocation(program_id, "vert_position");
|
||||
|
Loading…
Reference in New Issue
Block a user