diff options
Diffstat (limited to 'src/video_core/renderer_opengl/gl_shader_manager.h')
| -rw-r--r-- | src/video_core/renderer_opengl/gl_shader_manager.h | 185 |
1 files changed, 124 insertions, 61 deletions
diff --git a/src/video_core/renderer_opengl/gl_shader_manager.h b/src/video_core/renderer_opengl/gl_shader_manager.h index ad42cce74..d7ef0775d 100644 --- a/src/video_core/renderer_opengl/gl_shader_manager.h +++ b/src/video_core/renderer_opengl/gl_shader_manager.h @@ -4,79 +4,142 @@ #pragma once -#include <cstddef> +#include <array> +#include <span> #include <glad/glad.h> +#include "video_core/renderer_opengl/gl_device.h" #include "video_core/renderer_opengl/gl_resource_manager.h" -#include "video_core/renderer_opengl/maxwell_to_gl.h" namespace OpenGL { -class Device; - -/// Uniform structure for the Uniform Buffer Object, all vectors must be 16-byte aligned -/// @note Always keep a vec4 at the end. The GL spec is not clear whether the alignment at -/// the end of a uniform block is included in UNIFORM_BLOCK_DATA_SIZE or not. -/// Not following that rule will cause problems on some AMD drivers. -struct alignas(16) MaxwellUniformData { - void SetFromRegs(const Tegra::Engines::Maxwell3D& maxwell); - - GLfloat y_direction; -}; -static_assert(sizeof(MaxwellUniformData) == 16, "MaxwellUniformData structure size is incorrect"); -static_assert(sizeof(MaxwellUniformData) < 16384, - "MaxwellUniformData structure must be less than 16kb as per the OpenGL spec"); - class ProgramManager { -public: - explicit ProgramManager(const Device& device); - ~ProgramManager(); - - /// Binds a compute program - void BindCompute(GLuint program); - - /// Updates bound programs. - void BindGraphicsPipeline(); - - /// Binds an OpenGL pipeline object unsynchronized with the guest state. - void BindHostPipeline(GLuint pipeline); - - /// Rewinds BindHostPipeline state changes. - void RestoreGuestPipeline(); - - /// Binds an OpenGL GLSL program object unsynchronized with the guest state. - void BindHostCompute(GLuint program); + static constexpr size_t NUM_STAGES = 5; - /// Rewinds BindHostCompute state changes. - void RestoreGuestCompute(); - - void UseVertexShader(GLuint program); - void UseGeometryShader(GLuint program); - void UseFragmentShader(GLuint program); - -private: - struct PipelineState { - GLuint vertex = 0; - GLuint geometry = 0; - GLuint fragment = 0; + static constexpr std::array ASSEMBLY_PROGRAM_ENUMS{ + GL_VERTEX_PROGRAM_NV, GL_TESS_CONTROL_PROGRAM_NV, GL_TESS_EVALUATION_PROGRAM_NV, + GL_GEOMETRY_PROGRAM_NV, GL_FRAGMENT_PROGRAM_NV, }; - /// Update GLSL programs. - void UpdateSourcePrograms(); - - OGLPipeline graphics_pipeline; - - PipelineState current_state; - PipelineState old_state; - - bool use_assembly_programs = false; - - bool is_graphics_bound = true; +public: + explicit ProgramManager(const Device& device) { + glCreateProgramPipelines(1, &pipeline.handle); + if (device.UseAssemblyShaders()) { + glEnable(GL_COMPUTE_PROGRAM_NV); + } + } + + void BindComputeProgram(GLuint program) { + glUseProgram(program); + is_compute_bound = true; + } + + void BindComputeAssemblyProgram(GLuint program) { + if (current_assembly_compute_program != program) { + current_assembly_compute_program = program; + glBindProgramARB(GL_COMPUTE_PROGRAM_NV, program); + } + UnbindPipeline(); + } + + void BindSourcePrograms(std::span<const OGLProgram, NUM_STAGES> programs) { + static constexpr std::array<GLenum, 5> stage_enums{ + GL_VERTEX_SHADER_BIT, GL_TESS_CONTROL_SHADER_BIT, GL_TESS_EVALUATION_SHADER_BIT, + GL_GEOMETRY_SHADER_BIT, GL_FRAGMENT_SHADER_BIT, + }; + for (size_t stage = 0; stage < NUM_STAGES; ++stage) { + if (current_programs[stage] != programs[stage].handle) { + current_programs[stage] = programs[stage].handle; + glUseProgramStages(pipeline.handle, stage_enums[stage], programs[stage].handle); + } + } + BindPipeline(); + } + + void BindPresentPrograms(GLuint vertex, GLuint fragment) { + if (current_programs[0] != vertex) { + current_programs[0] = vertex; + glUseProgramStages(pipeline.handle, GL_VERTEX_SHADER_BIT, vertex); + } + if (current_programs[4] != fragment) { + current_programs[4] = fragment; + glUseProgramStages(pipeline.handle, GL_FRAGMENT_SHADER_BIT, fragment); + } + glUseProgramStages( + pipeline.handle, + GL_TESS_CONTROL_SHADER_BIT | GL_TESS_EVALUATION_SHADER_BIT | GL_GEOMETRY_SHADER_BIT, 0); + current_programs[1] = 0; + current_programs[2] = 0; + current_programs[3] = 0; + + if (current_stage_mask != 0) { + current_stage_mask = 0; + for (const GLenum program_type : ASSEMBLY_PROGRAM_ENUMS) { + glDisable(program_type); + } + } + BindPipeline(); + } + + void BindAssemblyPrograms(std::span<const OGLAssemblyProgram, NUM_STAGES> programs, + u32 stage_mask) { + const u32 changed_mask = current_stage_mask ^ stage_mask; + current_stage_mask = stage_mask; + + if (changed_mask != 0) { + for (size_t stage = 0; stage < NUM_STAGES; ++stage) { + if (((changed_mask >> stage) & 1) != 0) { + if (((stage_mask >> stage) & 1) != 0) { + glEnable(ASSEMBLY_PROGRAM_ENUMS[stage]); + } else { + glDisable(ASSEMBLY_PROGRAM_ENUMS[stage]); + } + } + } + } + for (size_t stage = 0; stage < NUM_STAGES; ++stage) { + if (current_programs[stage] != programs[stage].handle) { + current_programs[stage] = programs[stage].handle; + glBindProgramARB(ASSEMBLY_PROGRAM_ENUMS[stage], programs[stage].handle); + } + } + UnbindPipeline(); + } + + void RestoreGuestCompute() {} - bool vertex_enabled = false; - bool geometry_enabled = false; - bool fragment_enabled = false; +private: + void BindPipeline() { + if (!is_pipeline_bound) { + is_pipeline_bound = true; + glBindProgramPipeline(pipeline.handle); + } + UnbindCompute(); + } + + void UnbindPipeline() { + if (is_pipeline_bound) { + is_pipeline_bound = false; + glBindProgramPipeline(0); + } + UnbindCompute(); + } + + void UnbindCompute() { + if (is_compute_bound) { + is_compute_bound = false; + glUseProgram(0); + } + } + + OGLPipeline pipeline; + bool is_pipeline_bound{}; + bool is_compute_bound{}; + + u32 current_stage_mask = 0; + std::array<GLuint, NUM_STAGES> current_programs{}; + GLuint current_assembly_compute_program = 0; }; } // namespace OpenGL |