diff options
Diffstat (limited to 'src/shader_recompiler/backend/glsl')
| -rw-r--r-- | src/shader_recompiler/backend/glsl/emit_glsl_context_get_set.cpp | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/src/shader_recompiler/backend/glsl/emit_glsl_context_get_set.cpp b/src/shader_recompiler/backend/glsl/emit_glsl_context_get_set.cpp index fea325df9..ae10a830c 100644 --- a/src/shader_recompiler/backend/glsl/emit_glsl_context_get_set.cpp +++ b/src/shader_recompiler/backend/glsl/emit_glsl_context_get_set.cpp @@ -1,4 +1,5 @@ // SPDX-FileCopyrightText: Copyright 2021 yuzu Emulator Project +// SPDX-FileCopyrightText: Copyright 2025 citron Emulator Project // SPDX-License-Identifier: GPL-2.0-or-later #include <string_view> @@ -423,6 +424,8 @@ void EmitInvocationId(EmitContext& ctx, IR::Inst& inst) { void EmitInvocationInfo(EmitContext& ctx, IR::Inst& inst) { switch (ctx.stage) { case Stage::TessellationControl: + ctx.AddU32("{}=uint(gl_PatchVerticesIn)<<16;", inst); + break; case Stage::TessellationEval: ctx.AddU32("{}=uint(gl_PatchVerticesIn)<<16;", inst); break; @@ -430,7 +433,46 @@ void EmitInvocationInfo(EmitContext& ctx, IR::Inst& inst) { // Return sample mask in upper 16 bits ctx.AddU32("{}=uint(gl_SampleMaskIn[0])<<16;", inst); break; + case Stage::Geometry: { + // Return vertex count in upper 16 bits based on input topology + // Using a lookup table approach for vertex counts + ctx.AddU32("{}=uint(", inst); + + // Define vertex counts for each topology in a comment for clarity + ctx.Add("// Vertex counts: Points=1, Lines=2, LinesAdj=4, Triangles=3, TrianglesAdj=6\n"); + + // Use a lookup table approach in the generated GLSL code + ctx.Add("("); + + // Generate a conditional expression that acts like a lookup table + switch (ctx.runtime_info.input_topology) { + case InputTopology::Points: + ctx.Add("1"); // Points + break; + case InputTopology::Lines: + ctx.Add("2"); // Lines + break; + case InputTopology::LinesAdjacency: + ctx.Add("4"); // LinesAdjacency + break; + case InputTopology::Triangles: + ctx.Add("3"); // Triangles + break; + case InputTopology::TrianglesAdjacency: + ctx.Add("6"); // TrianglesAdjacency + break; + default: + ctx.Add("1"); // Default to Points + break; + } + + ctx.Add(")<<16);"); + break; + } case Stage::Compute: + // Return standard format (0x00ff0000) + ctx.AddU32("{}=0x00ff0000u;", inst); + break; default: // Return standard format (0x00ff0000) ctx.AddU32("{}=0x00ff0000u;", inst); |