diff options
| -rw-r--r-- | src/video_core/engines/shader_bytecode.h | 10 | ||||
| -rw-r--r-- | src/video_core/renderer_opengl/gl_shader_decompiler.cpp | 34 |
2 files changed, 43 insertions, 1 deletions
diff --git a/src/video_core/engines/shader_bytecode.h b/src/video_core/engines/shader_bytecode.h index 2db906ea5..58f2904ce 100644 --- a/src/video_core/engines/shader_bytecode.h +++ b/src/video_core/engines/shader_bytecode.h @@ -254,6 +254,15 @@ enum class TextureQueryType : u64 { BorderColor = 22, }; +enum class TextureProcessMode : u64 { + None = 0, + LZ = 1, // Unknown, appears to be the same as none. + LB = 2, // Load Bias. + LL = 3, // Load LOD (LevelOfDetail) + LBA = 6, // Load Bias. The A is unknown, does not appear to differ with LB + LLA = 7 // Load LOD. The A is unknown, does not appear to differ with LL +}; + enum class IpaInterpMode : u64 { Linear = 0, Perspective = 1, Flat = 2, Sc = 3 }; enum class IpaSampleMode : u64 { Default = 0, Centroid = 1, Offset = 2 }; @@ -573,6 +582,7 @@ union Instruction { BitField<28, 1, u64> array; BitField<29, 2, TextureType> texture_type; BitField<31, 4, u64> component_mask; + BitField<55, 3, TextureProcessMode> process_mode; bool IsComponentEnabled(size_t component) const { return ((1ull << component) & component_mask) != 0; diff --git a/src/video_core/renderer_opengl/gl_shader_decompiler.cpp b/src/video_core/renderer_opengl/gl_shader_decompiler.cpp index 582c811e0..2d56370c7 100644 --- a/src/video_core/renderer_opengl/gl_shader_decompiler.cpp +++ b/src/video_core/renderer_opengl/gl_shader_decompiler.cpp @@ -1853,15 +1853,47 @@ private: coord = "vec2 coords = vec2(" + x + ", " + y + ");"; texture_type = Tegra::Shader::TextureType::Texture2D; } + // TODO: make sure coordinates are always indexed to gpr8 and gpr20 is always bias + // or lod. + const std::string op_c = regs.GetRegisterAsFloat(instr.gpr20); const std::string sampler = GetSampler(instr.sampler, texture_type, false); // Add an extra scope and declare the texture coords inside to prevent // overwriting them in case they are used as outputs of the texs instruction. + shader.AddLine("{"); ++shader.scope; shader.AddLine(coord); - const std::string texture = "texture(" + sampler + ", coords)"; + std::string texture; + switch (instr.tex.process_mode) { + case Tegra::Shader::TextureProcessMode::None: { + texture = "texture(" + sampler + ", coords)"; + break; + } + case Tegra::Shader::TextureProcessMode::LZ: { + texture = "textureLod(" + sampler + ", coords, 0.0)"; + break; + } + case Tegra::Shader::TextureProcessMode::LB: + case Tegra::Shader::TextureProcessMode::LBA: { + // TODO: Figure if A suffix changes the equation at all. + texture = "texture(" + sampler + ", coords, " + op_c + ')'; + break; + } + case Tegra::Shader::TextureProcessMode::LL: + case Tegra::Shader::TextureProcessMode::LLA: { + // TODO: Figure if A suffix changes the equation at all. + texture = "textureLod(" + sampler + ", coords, " + op_c + ')'; + break; + } + default: { + texture = "texture(" + sampler + ", coords)"; + LOG_CRITICAL(HW_GPU, "Unhandled texture process mode {}", + static_cast<u32>(instr.tex.process_mode.Value())); + UNREACHABLE(); + } + } size_t dest_elem{}; for (size_t elem = 0; elem < 4; ++elem) { if (!instr.tex.IsComponentEnabled(elem)) { |