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@ -24,34 +24,68 @@ class ProgramManager {
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public:
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explicit ProgramManager(const Device& device) {
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glCreateProgramPipelines(1, &pipeline.handle);
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if (device.UseAssemblyShaders()) {
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glEnable(GL_COMPUTE_PROGRAM_NV);
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}
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}
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void BindProgram(GLuint program) {
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if (current_source_program == program) {
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return;
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}
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current_source_program = program;
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void BindComputeProgram(GLuint program) {
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glUseProgram(program);
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is_compute_bound = true;
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}
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void BindComputeAssemblyProgram(GLuint program) {
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if (current_compute_assembly_program != program) {
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current_compute_assembly_program = program;
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if (current_assembly_compute_program != program) {
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current_assembly_compute_program = program;
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glBindProgramARB(GL_COMPUTE_PROGRAM_NV, program);
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}
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if (current_source_program != 0) {
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current_source_program = 0;
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glUseProgram(0);
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UnbindPipeline();
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}
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void BindSourcePrograms(std::span<const OGLProgram, NUM_STAGES> programs) {
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static constexpr std::array<GLenum, 5> stage_enums{
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GL_VERTEX_SHADER_BIT, GL_TESS_CONTROL_SHADER_BIT, GL_TESS_EVALUATION_SHADER_BIT,
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GL_GEOMETRY_SHADER_BIT, GL_FRAGMENT_SHADER_BIT,
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};
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for (size_t stage = 0; stage < NUM_STAGES; ++stage) {
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if (current_programs[stage] != programs[stage].handle) {
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current_programs[stage] = programs[stage].handle;
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glUseProgramStages(pipeline.handle, stage_enums[stage], programs[stage].handle);
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}
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}
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BindPipeline();
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}
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void BindPresentPrograms(GLuint vertex, GLuint fragment) {
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if (current_programs[0] != vertex) {
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current_programs[0] = vertex;
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glUseProgramStages(pipeline.handle, GL_VERTEX_SHADER_BIT, vertex);
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}
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if (current_programs[4] != fragment) {
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current_programs[4] = fragment;
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glUseProgramStages(pipeline.handle, GL_FRAGMENT_SHADER_BIT, fragment);
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}
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glUseProgramStages(
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pipeline.handle,
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GL_TESS_CONTROL_SHADER_BIT | GL_TESS_EVALUATION_SHADER_BIT | GL_GEOMETRY_SHADER_BIT, 0);
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current_programs[1] = 0;
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current_programs[2] = 0;
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current_programs[3] = 0;
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if (current_stage_mask != 0) {
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current_stage_mask = 0;
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for (const GLenum program_type : ASSEMBLY_PROGRAM_ENUMS) {
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glDisable(program_type);
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}
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}
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BindPipeline();
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}
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void BindAssemblyPrograms(std::span<const OGLAssemblyProgram, NUM_STAGES> programs,
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u32 stage_mask) {
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const u32 changed_mask = current_assembly_mask ^ stage_mask;
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current_assembly_mask = stage_mask;
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const u32 changed_mask = current_stage_mask ^ stage_mask;
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current_stage_mask = stage_mask;
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if (changed_mask != 0) {
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for (size_t stage = 0; stage < NUM_STAGES; ++stage) {
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@ -65,25 +99,47 @@ public:
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}
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}
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for (size_t stage = 0; stage < NUM_STAGES; ++stage) {
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if (current_assembly_programs[stage] != programs[stage].handle) {
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current_assembly_programs[stage] = programs[stage].handle;
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if (current_programs[stage] != programs[stage].handle) {
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current_programs[stage] = programs[stage].handle;
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glBindProgramARB(ASSEMBLY_PROGRAM_ENUMS[stage], programs[stage].handle);
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}
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}
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if (current_source_program != 0) {
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current_source_program = 0;
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glUseProgram(0);
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}
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UnbindPipeline();
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}
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void RestoreGuestCompute() {}
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private:
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GLuint current_source_program = 0;
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void BindPipeline() {
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if (!is_pipeline_bound) {
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is_pipeline_bound = true;
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glBindProgramPipeline(pipeline.handle);
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}
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UnbindCompute();
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}
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u32 current_assembly_mask = 0;
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std::array<GLuint, NUM_STAGES> current_assembly_programs{};
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GLuint current_compute_assembly_program = 0;
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void UnbindPipeline() {
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if (is_pipeline_bound) {
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is_pipeline_bound = false;
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glBindProgramPipeline(0);
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}
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UnbindCompute();
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}
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void UnbindCompute() {
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if (is_compute_bound) {
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is_compute_bound = false;
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glUseProgram(0);
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}
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}
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OGLPipeline pipeline;
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bool is_pipeline_bound{};
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bool is_compute_bound{};
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u32 current_stage_mask = 0;
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std::array<GLuint, NUM_STAGES> current_programs{};
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GLuint current_assembly_compute_program = 0;
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};
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} // namespace OpenGL
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