glsl: Query GL Device for FP16 extension support
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@ -5,6 +5,7 @@
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#include "shader_recompiler/backend/bindings.h"
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#include "shader_recompiler/backend/glsl/emit_context.h"
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#include "shader_recompiler/frontend/ir/program.h"
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#include "shader_recompiler/profile.h"
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namespace Shader::Backend::GLSL {
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@ -40,9 +41,13 @@ void EmitContext::SetupExtensions(std::string& header) {
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header += "#extension NV_shader_atomic_fp16_vector : enable\n";
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}
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if (info.uses_fp16) {
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// TODO: AMD
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if (profile.support_gl_nv_gpu_shader_5) {
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header += "#extension GL_NV_gpu_shader5 : enable\n";
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}
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if (profile.support_gl_amd_gpu_shader_half_float) {
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header += "#extension GL_AMD_gpu_shader_half_float : enable\n";
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}
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}
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}
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void EmitContext::DefineConstantBuffers() {
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@ -83,6 +83,8 @@ struct Profile {
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bool support_demote_to_helper_invocation{};
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bool support_int64_atomics{};
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bool support_derivative_control{};
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bool support_gl_nv_gpu_shader_5{};
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bool support_gl_amd_gpu_shader_half_float{};
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bool warp_size_potentially_larger_than_guest{};
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@ -158,6 +158,8 @@ Device::Device() {
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has_vertex_buffer_unified_memory = GLAD_GL_NV_vertex_buffer_unified_memory;
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has_debugging_tool_attached = IsDebugToolAttached(extensions);
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has_depth_buffer_float = HasExtension(extensions, "GL_NV_depth_buffer_float");
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has_nv_gpu_shader_5 = GLAD_GL_NV_gpu_shader5;
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has_amd_shader_half_float = GLAD_GL_AMD_gpu_shader_half_float;
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// At the moment of writing this, only Nvidia's driver optimizes BufferSubData on exclusive
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// uniform buffers as "push constants"
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@ -120,6 +120,14 @@ public:
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return has_depth_buffer_float;
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}
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bool HasNvGpuShader5() const {
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return has_nv_gpu_shader_5;
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}
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bool HasAmdShaderHalfFloat() const {
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return has_amd_shader_half_float;
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}
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private:
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static bool TestVariableAoffi();
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static bool TestPreciseBug();
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@ -151,6 +159,8 @@ private:
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bool use_asynchronous_shaders{};
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bool use_driver_cache{};
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bool has_depth_buffer_float{};
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bool has_nv_gpu_shader_5{};
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bool has_amd_shader_half_float{};
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};
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} // namespace OpenGL
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@ -217,6 +217,8 @@ ShaderCache::ShaderCache(RasterizerOpenGL& rasterizer_, Core::Frontend::EmuWindo
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.support_demote_to_helper_invocation = false,
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.support_int64_atomics = false,
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.support_derivative_control = device.HasDerivativeControl(),
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.support_gl_nv_gpu_shader_5 = device.HasNvGpuShader5(),
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.support_gl_amd_gpu_shader_half_float = device.HasAmdShaderHalfFloat(),
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.warp_size_potentially_larger_than_guest = true,
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