glsl: Conditionally use fine/coarse derivatives based on device support
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6eea88d614
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@ -395,6 +395,9 @@ void EmitContext::SetupExtensions() {
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if (info.uses_typeless_image_reads || info.uses_typeless_image_writes) {
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if (info.uses_typeless_image_reads || info.uses_typeless_image_writes) {
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header += "#extension GL_EXT_shader_image_load_formatted : enable\n";
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header += "#extension GL_EXT_shader_image_load_formatted : enable\n";
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}
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}
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if (info.uses_derivatives && profile.support_gl_derivative_control) {
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header += "#extension GL_ARB_derivative_control : enable\n";
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}
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}
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}
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void EmitContext::DefineConstantBuffers(Bindings& bindings) {
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void EmitContext::DefineConstantBuffers(Bindings& bindings) {
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@ -180,18 +180,38 @@ void EmitFSwizzleAdd(EmitContext& ctx, IR::Inst& inst, std::string_view op_a, st
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}
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}
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void EmitDPdxFine(EmitContext& ctx, IR::Inst& inst, std::string_view op_a) {
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void EmitDPdxFine(EmitContext& ctx, IR::Inst& inst, std::string_view op_a) {
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if (ctx.profile.support_gl_derivative_control) {
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ctx.AddF32("{}=dFdxFine({});", inst, op_a);
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ctx.AddF32("{}=dFdxFine({});", inst, op_a);
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} else {
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LOG_WARNING(Shader_GLSL, "Device does not support dFdxFine, fallback to dFdx");
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ctx.AddF32("{}=dFdx({});", inst, op_a);
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}
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}
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}
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void EmitDPdyFine(EmitContext& ctx, IR::Inst& inst, std::string_view op_a) {
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void EmitDPdyFine(EmitContext& ctx, IR::Inst& inst, std::string_view op_a) {
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if (ctx.profile.support_gl_derivative_control) {
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ctx.AddF32("{}=dFdyFine({});", inst, op_a);
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ctx.AddF32("{}=dFdyFine({});", inst, op_a);
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} else {
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LOG_WARNING(Shader_GLSL, "Device does not support dFdyFine, fallback to dFdy");
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ctx.AddF32("{}=dFdy({});", inst, op_a);
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}
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}
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}
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void EmitDPdxCoarse(EmitContext& ctx, IR::Inst& inst, std::string_view op_a) {
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void EmitDPdxCoarse(EmitContext& ctx, IR::Inst& inst, std::string_view op_a) {
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if (ctx.profile.support_gl_derivative_control) {
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ctx.AddF32("{}=dFdxCoarse({});", inst, op_a);
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ctx.AddF32("{}=dFdxCoarse({});", inst, op_a);
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} else {
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LOG_WARNING(Shader_GLSL, "Device does not support dFdxCoarse, fallback to dFdx");
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ctx.AddF32("{}=dFdx({});", inst, op_a);
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}
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}
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}
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void EmitDPdyCoarse(EmitContext& ctx, IR::Inst& inst, std::string_view op_a) {
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void EmitDPdyCoarse(EmitContext& ctx, IR::Inst& inst, std::string_view op_a) {
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if (ctx.profile.support_gl_derivative_control) {
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ctx.AddF32("{}=dFdyCoarse({});", inst, op_a);
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ctx.AddF32("{}=dFdyCoarse({});", inst, op_a);
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} else {
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LOG_WARNING(Shader_GLSL, "Device does not support dFdyCoarse, fallback to dFdy");
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ctx.AddF32("{}=dFdy({});", inst, op_a);
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}
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}
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}
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} // namespace Shader::Backend::GLSL
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} // namespace Shader::Backend::GLSL
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@ -89,6 +89,7 @@ struct Profile {
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bool support_gl_warp_intrinsics{};
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bool support_gl_warp_intrinsics{};
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bool support_gl_variable_aoffi{};
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bool support_gl_variable_aoffi{};
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bool support_gl_sparse_textures{};
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bool support_gl_sparse_textures{};
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bool support_gl_derivative_control{};
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bool warp_size_potentially_larger_than_guest{};
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bool warp_size_potentially_larger_than_guest{};
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@ -187,6 +187,7 @@ ShaderCache::ShaderCache(RasterizerOpenGL& rasterizer_, Core::Frontend::EmuWindo
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.support_gl_warp_intrinsics = false,
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.support_gl_warp_intrinsics = false,
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.support_gl_variable_aoffi = device.HasVariableAoffi(),
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.support_gl_variable_aoffi = device.HasVariableAoffi(),
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.support_gl_sparse_textures = device.HasSparseTexture2(),
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.support_gl_sparse_textures = device.HasSparseTexture2(),
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.support_gl_derivative_control = device.HasDerivativeControl(),
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.warp_size_potentially_larger_than_guest = device.IsWarpSizePotentiallyLargerThanGuest(),
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.warp_size_potentially_larger_than_guest = device.IsWarpSizePotentiallyLargerThanGuest(),
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