diff options
| author | ameerj <52414509+ameerj@users.noreply.github.com> | 2021-06-14 23:33:26 -0400 |
|---|---|---|
| committer | ameerj <52414509+ameerj@users.noreply.github.com> | 2021-07-22 21:51:38 -0400 |
| commit | 3b339fbbf65a50ec2ec8baacd175ca7577c3b8bd (patch) | |
| tree | 76ca69181eeb90c2fd2adf8defc68ddc7d8b135e /src/shader_recompiler | |
| parent | 6eea88d6149f7122777b325c7fc8549e2a974e64 (diff) | |
glsl: Conditionally use fine/coarse derivatives based on device support
Diffstat (limited to 'src/shader_recompiler')
| -rw-r--r-- | src/shader_recompiler/backend/glsl/emit_context.cpp | 3 | ||||
| -rw-r--r-- | src/shader_recompiler/backend/glsl/emit_glsl_warp.cpp | 28 | ||||
| -rw-r--r-- | src/shader_recompiler/profile.h | 1 |
3 files changed, 28 insertions, 4 deletions
diff --git a/src/shader_recompiler/backend/glsl/emit_context.cpp b/src/shader_recompiler/backend/glsl/emit_context.cpp index e18f8257ea..0e8fe017d2 100644 --- a/src/shader_recompiler/backend/glsl/emit_context.cpp +++ b/src/shader_recompiler/backend/glsl/emit_context.cpp @@ -395,6 +395,9 @@ void EmitContext::SetupExtensions() { if (info.uses_typeless_image_reads || info.uses_typeless_image_writes) { header += "#extension GL_EXT_shader_image_load_formatted : enable\n"; } + if (info.uses_derivatives && profile.support_gl_derivative_control) { + header += "#extension GL_ARB_derivative_control : enable\n"; + } } void EmitContext::DefineConstantBuffers(Bindings& bindings) { diff --git a/src/shader_recompiler/backend/glsl/emit_glsl_warp.cpp b/src/shader_recompiler/backend/glsl/emit_glsl_warp.cpp index 4d418cbbc7..a982dd8a27 100644 --- a/src/shader_recompiler/backend/glsl/emit_glsl_warp.cpp +++ b/src/shader_recompiler/backend/glsl/emit_glsl_warp.cpp @@ -180,18 +180,38 @@ void EmitFSwizzleAdd(EmitContext& ctx, IR::Inst& inst, std::string_view op_a, st } void EmitDPdxFine(EmitContext& ctx, IR::Inst& inst, std::string_view op_a) { - ctx.AddF32("{}=dFdxFine({});", inst, op_a); + if (ctx.profile.support_gl_derivative_control) { + ctx.AddF32("{}=dFdxFine({});", inst, op_a); + } else { + LOG_WARNING(Shader_GLSL, "Device does not support dFdxFine, fallback to dFdx"); + ctx.AddF32("{}=dFdx({});", inst, op_a); + } } void EmitDPdyFine(EmitContext& ctx, IR::Inst& inst, std::string_view op_a) { - ctx.AddF32("{}=dFdyFine({});", inst, op_a); + if (ctx.profile.support_gl_derivative_control) { + ctx.AddF32("{}=dFdyFine({});", inst, op_a); + } else { + LOG_WARNING(Shader_GLSL, "Device does not support dFdyFine, fallback to dFdy"); + ctx.AddF32("{}=dFdy({});", inst, op_a); + } } void EmitDPdxCoarse(EmitContext& ctx, IR::Inst& inst, std::string_view op_a) { - ctx.AddF32("{}=dFdxCoarse({});", inst, op_a); + if (ctx.profile.support_gl_derivative_control) { + ctx.AddF32("{}=dFdxCoarse({});", inst, op_a); + } else { + LOG_WARNING(Shader_GLSL, "Device does not support dFdxCoarse, fallback to dFdx"); + ctx.AddF32("{}=dFdx({});", inst, op_a); + } } void EmitDPdyCoarse(EmitContext& ctx, IR::Inst& inst, std::string_view op_a) { - ctx.AddF32("{}=dFdyCoarse({});", inst, op_a); + if (ctx.profile.support_gl_derivative_control) { + ctx.AddF32("{}=dFdyCoarse({});", inst, op_a); + } else { + LOG_WARNING(Shader_GLSL, "Device does not support dFdyCoarse, fallback to dFdy"); + ctx.AddF32("{}=dFdy({});", inst, op_a); + } } } // namespace Shader::Backend::GLSL diff --git a/src/shader_recompiler/profile.h b/src/shader_recompiler/profile.h index 6db794e910..e8cfc03af3 100644 --- a/src/shader_recompiler/profile.h +++ b/src/shader_recompiler/profile.h @@ -89,6 +89,7 @@ struct Profile { bool support_gl_warp_intrinsics{}; bool support_gl_variable_aoffi{}; bool support_gl_sparse_textures{}; + bool support_gl_derivative_control{}; bool warp_size_potentially_larger_than_guest{}; |