diff options
4 files changed, 24 insertions, 15 deletions
diff --git a/src/video_core/renderer_opengl/gl_shader_cache.cpp b/src/video_core/renderer_opengl/gl_shader_cache.cpp index d7fb50a85..a85a7c0c5 100644 --- a/src/video_core/renderer_opengl/gl_shader_cache.cpp +++ b/src/video_core/renderer_opengl/gl_shader_cache.cpp @@ -121,12 +121,16 @@ GLint CachedShader::GetUniformLocation(const GLShader::SamplerEntry& sampler) { } GLuint CachedShader::LazyGeometryProgram(OGLProgram& target_program, - const std::string& glsl_topology, + const std::string& glsl_topology, u32 max_vertices, const std::string& debug_name) { if (target_program.handle != 0) { return target_program.handle; } - const std::string source{geometry_programs.code + "layout (" + glsl_topology + ") in;\n"}; + std::string source = "#version 430 core\n"; + source += "layout (" + glsl_topology + ") in;\n"; + source += "#define MAX_VERTEX_INPUT " + std::to_string(max_vertices) + '\n'; + source += geometry_programs.code; + OGLShader shader; shader.Create(source.c_str(), GL_GEOMETRY_SHADER); target_program.Create(true, shader.handle); diff --git a/src/video_core/renderer_opengl/gl_shader_cache.h b/src/video_core/renderer_opengl/gl_shader_cache.h index 016ab18f9..ffbf21831 100644 --- a/src/video_core/renderer_opengl/gl_shader_cache.h +++ b/src/video_core/renderer_opengl/gl_shader_cache.h @@ -48,22 +48,23 @@ public: } switch (primitive_mode) { case GL_POINTS: - return LazyGeometryProgram(geometry_programs.points, "points", "ShaderPoints"); + return LazyGeometryProgram(geometry_programs.points, "points", 1, "ShaderPoints"); case GL_LINES: case GL_LINE_STRIP: - return LazyGeometryProgram(geometry_programs.lines, "lines", "ShaderLines"); + return LazyGeometryProgram(geometry_programs.lines, "lines", 2, "ShaderLines"); case GL_LINES_ADJACENCY: case GL_LINE_STRIP_ADJACENCY: - return LazyGeometryProgram(geometry_programs.lines_adjacency, "lines_adjacency", + return LazyGeometryProgram(geometry_programs.lines_adjacency, "lines_adjacency", 4, "ShaderLinesAdjacency"); case GL_TRIANGLES: case GL_TRIANGLE_STRIP: case GL_TRIANGLE_FAN: - return LazyGeometryProgram(geometry_programs.triangles, "triangles", "ShaderTriangles"); + return LazyGeometryProgram(geometry_programs.triangles, "triangles", 3, + "ShaderTriangles"); case GL_TRIANGLES_ADJACENCY: case GL_TRIANGLE_STRIP_ADJACENCY: return LazyGeometryProgram(geometry_programs.triangles_adjacency, "triangles_adjacency", - "ShaderLines"); + 6, "ShaderTrianglesAdjacency"); default: UNREACHABLE_MSG("Unknown primitive mode."); } @@ -78,7 +79,7 @@ public: private: /// Generates a geometry shader or returns one that already exists. GLuint LazyGeometryProgram(OGLProgram& target_program, const std::string& glsl_topology, - const std::string& debug_name); + u32 max_vertices, const std::string& debug_name); VAddr addr; Maxwell::ShaderProgram program_type; diff --git a/src/video_core/renderer_opengl/gl_shader_decompiler.cpp b/src/video_core/renderer_opengl/gl_shader_decompiler.cpp index f6a879a7b..5fde22ad4 100644 --- a/src/video_core/renderer_opengl/gl_shader_decompiler.cpp +++ b/src/video_core/renderer_opengl/gl_shader_decompiler.cpp @@ -494,10 +494,10 @@ public: // instruction for now. if (stage == Maxwell3D::Regs::ShaderStage::Geometry) { // TODO(Rodrigo): nouveau sets some attributes after setting emitting a geometry - // shader. These instructions use a dirty register as buffer index. To avoid some - // drivers from complaining for the out of boundary writes, guard them. - const std::string buf_index{"min(" + GetRegisterAsInteger(buf_reg) + ", " + - std::to_string(MAX_GEOMETRY_BUFFERS - 1) + ')'}; + // shader. These instructions use a dirty register as buffer index, to avoid some + // drivers from complaining about out of boundary writes, guard them. + const std::string buf_index{"((" + GetRegisterAsInteger(buf_reg) + ") % " + + std::to_string(MAX_GEOMETRY_BUFFERS) + ')'}; shader.AddLine("amem[" + buf_index + "][" + std::to_string(static_cast<u32>(attribute)) + ']' + GetSwizzle(elem) + " = " + src + ';'); @@ -811,7 +811,11 @@ private: std::optional<Register> vertex = {}) { auto GeometryPass = [&](const std::string& name) { if (stage == Maxwell3D::Regs::ShaderStage::Geometry && vertex) { - return "gs_" + name + '[' + GetRegisterAsInteger(*vertex, 0, false) + ']'; + // TODO(Rodrigo): Guard geometry inputs against out of bound reads. Some games set + // an 0x80000000 index for those and the shader fails to build. Find out why this + // happens and what's its intent. + return "gs_" + name + '[' + GetRegisterAsInteger(*vertex, 0, false) + + " % MAX_VERTEX_INPUT]"; } return name; }; diff --git a/src/video_core/renderer_opengl/gl_shader_gen.cpp b/src/video_core/renderer_opengl/gl_shader_gen.cpp index 9d17edd63..eea090e52 100644 --- a/src/video_core/renderer_opengl/gl_shader_gen.cpp +++ b/src/video_core/renderer_opengl/gl_shader_gen.cpp @@ -82,8 +82,8 @@ void main() { } ProgramResult GenerateGeometryShader(const ShaderSetup& setup) { - std::string out = "#version 430 core\n"; - out += "#extension GL_ARB_separate_shader_objects : enable\n\n"; + // Version is intentionally skipped in shader generation, it's added by the lazy compilation. + std::string out = "#extension GL_ARB_separate_shader_objects : enable\n\n"; out += Decompiler::GetCommonDeclarations(); out += "bool exec_geometry();\n"; |