diff options
Diffstat (limited to 'src/video_core')
| -rw-r--r-- | src/video_core/renderer_opengl/gl_shader_decompiler.cpp | 304 |
1 files changed, 188 insertions, 116 deletions
diff --git a/src/video_core/renderer_opengl/gl_shader_decompiler.cpp b/src/video_core/renderer_opengl/gl_shader_decompiler.cpp index 3b7841715..9dbaf26d4 100644 --- a/src/video_core/renderer_opengl/gl_shader_decompiler.cpp +++ b/src/video_core/renderer_opengl/gl_shader_decompiler.cpp @@ -1292,7 +1292,15 @@ private: regs.SetRegisterToInteger(dest, true, 0, result, 1, 1); } - void WriteTexsInstruction(const Instruction& instr, const std::string& texture) { + void WriteTexsInstruction(const Instruction& instr, const std::string& coord, + const std::string& texture) { + // 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); + shader.AddLine("vec4 texture_tmp = " + texture + ';'); + // TEXS has two destination registers and a swizzle. The first two elements in the swizzle // go into gpr0+0 and gpr0+1, and the rest goes into gpr28+0 and gpr28+1 @@ -1304,17 +1312,19 @@ private: if (written_components < 2) { // Write the first two swizzle components to gpr0 and gpr0+1 - regs.SetRegisterToFloat(instr.gpr0, component, texture, 1, 4, false, + regs.SetRegisterToFloat(instr.gpr0, component, "texture_tmp", 1, 4, false, written_components % 2); } else { ASSERT(instr.texs.HasTwoDestinations()); // Write the rest of the swizzle components to gpr28 and gpr28+1 - regs.SetRegisterToFloat(instr.gpr28, component, texture, 1, 4, false, + regs.SetRegisterToFloat(instr.gpr28, component, "texture_tmp", 1, 4, false, written_components % 2); } ++written_components; } + --shader.scope; + shader.AddLine('}'); } static u32 TextureCoordinates(Tegra::Shader::TextureType texture_type) { @@ -2536,61 +2546,83 @@ private: const bool depth_compare = instr.tex.UsesMiscMode(Tegra::Shader::TextureMiscMode::DC); u32 num_coordinates = TextureCoordinates(texture_type); - if (depth_compare) - num_coordinates += 1; + u32 start_index = 0; + std::string array_elem; + if (is_array) { + array_elem = regs.GetRegisterAsInteger(instr.gpr8); + start_index = 1; + } + const auto process_mode = instr.tex.GetTextureProcessMode(); + u32 start_index_b = 0; + std::string lod_value; + if (process_mode != Tegra::Shader::TextureProcessMode::LZ && + process_mode != Tegra::Shader::TextureProcessMode::None) { + start_index_b = 1; + lod_value = regs.GetRegisterAsFloat(instr.gpr20); + } + + std::string depth_value; + if (depth_compare) { + depth_value = regs.GetRegisterAsFloat(instr.gpr20.Value() + start_index_b); + } + + bool depth_compare_extra = false; switch (num_coordinates) { case 1: { + const std::string x = regs.GetRegisterAsFloat(instr.gpr8.Value() + start_index); if (is_array) { - const std::string index = regs.GetRegisterAsInteger(instr.gpr8); - const std::string x = regs.GetRegisterAsFloat(instr.gpr8.Value() + 1); - coord = "vec2 coords = vec2(" + x + ", " + index + ");"; + if (depth_compare) { + coord = "vec3 coords = vec3(" + x + ", " + depth_value + ", " + + array_elem + ");"; + } else { + coord = "vec2 coords = vec2(" + x + ", " + array_elem + ");"; + } } else { - const std::string x = regs.GetRegisterAsFloat(instr.gpr8); - coord = "float coords = " + x + ';'; + if (depth_compare) { + coord = "vec2 coords = vec2(" + x + ", " + depth_value + ");"; + } else { + coord = "float coords = " + x + ';'; + } } break; } case 2: { + const std::string x = regs.GetRegisterAsFloat(instr.gpr8.Value() + start_index); + const std::string y = + regs.GetRegisterAsFloat(instr.gpr8.Value() + start_index + 1); if (is_array) { - const std::string index = regs.GetRegisterAsInteger(instr.gpr8); - const std::string x = regs.GetRegisterAsFloat(instr.gpr8.Value() + 1); - const std::string y = regs.GetRegisterAsFloat(instr.gpr8.Value() + 2); - coord = "vec3 coords = vec3(" + x + ", " + y + ", " + index + ");"; + if (depth_compare) { + coord = "vec4 coords = vec4(" + x + ", " + y + ", " + depth_value + + ", " + array_elem + ");"; + } else { + coord = "vec3 coords = vec3(" + x + ", " + y + ", " + array_elem + ");"; + } } else { - const std::string x = regs.GetRegisterAsFloat(instr.gpr8); - const std::string y = regs.GetRegisterAsFloat(instr.gpr8.Value() + 1); - coord = "vec2 coords = vec2(" + x + ", " + y + ");"; + if (depth_compare) { + coord = + "vec3 coords = vec3(" + x + ", " + y + ", " + depth_value + ");"; + } else { + coord = "vec2 coords = vec2(" + x + ", " + y + ");"; + } } break; } case 3: { - if (depth_compare) { - if (is_array) { - const std::string index = regs.GetRegisterAsInteger(instr.gpr8); - const std::string x = regs.GetRegisterAsFloat(instr.gpr8.Value() + 1); - const std::string y = regs.GetRegisterAsFloat(instr.gpr20); - const std::string z = regs.GetRegisterAsFloat(instr.gpr20.Value() + 1); - coord = "vec4 coords = vec4(" + x + ", " + y + ", " + z + ", " + index + - ");"; - } else { - const std::string x = regs.GetRegisterAsFloat(instr.gpr8); - const std::string y = regs.GetRegisterAsFloat(instr.gpr8.Value() + 1); - const std::string z = regs.GetRegisterAsFloat(instr.gpr20); - coord = "vec3 coords = vec3(" + x + ", " + y + ", " + z + ");"; - } + const std::string x = regs.GetRegisterAsFloat(instr.gpr8.Value() + start_index); + const std::string y = + regs.GetRegisterAsFloat(instr.gpr8.Value() + start_index + 1); + const std::string z = + regs.GetRegisterAsFloat(instr.gpr8.Value() + start_index + 2); + if (is_array) { + depth_compare_extra = depth_compare; + coord = "vec4 coords = vec4(" + x + ", " + y + ", " + z + ", " + + array_elem + ");"; } else { - if (is_array) { - const std::string index = regs.GetRegisterAsInteger(instr.gpr8); - const std::string x = regs.GetRegisterAsFloat(instr.gpr8.Value() + 1); - const std::string y = regs.GetRegisterAsFloat(instr.gpr8.Value() + 2); - const std::string z = regs.GetRegisterAsFloat(instr.gpr8.Value() + 3); - coord = "vec4 coords = vec4(" + x + ", " + y + ", " + z + ", " + index + - ");"; + if (depth_compare) { + coord = "vec4 coords = vec4(" + x + ", " + y + ", " + z + ", " + + depth_value + ");"; } else { - const std::string x = regs.GetRegisterAsFloat(instr.gpr8); - const std::string y = regs.GetRegisterAsFloat(instr.gpr8.Value() + 1); - const std::string z = regs.GetRegisterAsFloat(instr.gpr8.Value() + 2); coord = "vec3 coords = vec3(" + x + ", " + y + ", " + z + ");"; } } @@ -2606,82 +2638,85 @@ 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 sampler = GetSampler(instr.sampler, texture_type, is_array, depth_compare); // 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.AddLine('{'); ++shader.scope; shader.AddLine(coord); std::string texture; switch (instr.tex.GetTextureProcessMode()) { case Tegra::Shader::TextureProcessMode::None: { - texture = "texture(" + sampler + ", coords)"; + if (!depth_compare_extra) { + texture = "texture(" + sampler + ", coords)"; + } else { + texture = "texture(" + sampler + ", coords, " + depth_value + ')'; + } break; } case Tegra::Shader::TextureProcessMode::LZ: { - texture = "textureLod(" + sampler + ", coords, 0.0)"; + if (!depth_compare_extra) { + texture = "textureLod(" + sampler + ", coords, 0.0)"; + } else { + texture = "texture(" + sampler + ", coords, " + depth_value + ')'; + } break; } case Tegra::Shader::TextureProcessMode::LB: case Tegra::Shader::TextureProcessMode::LBA: { - const std::string bias = [&]() { - if (depth_compare) { - if (is_array) - return regs.GetRegisterAsFloat(instr.gpr20.Value() + 2); - else - return regs.GetRegisterAsFloat(instr.gpr20.Value() + 1); - } else { - return regs.GetRegisterAsFloat(instr.gpr20); - } - }(); - shader.AddLine("float bias = " + bias + ';'); - // TODO: Figure if A suffix changes the equation at all. - texture = "texture(" + sampler + ", coords, bias)"; + if (!depth_compare_extra) { + texture = "texture(" + sampler + ", coords, " + lod_value + ')'; + } else { + texture = "texture(" + sampler + ", coords, " + depth_value + ')'; + LOG_WARNING(HW_GPU, + "OpenGL Limitation: can't set bias value along depth compare"); + } break; } case Tegra::Shader::TextureProcessMode::LL: case Tegra::Shader::TextureProcessMode::LLA: { - const std::string lod = [&]() { - if (num_coordinates <= 2) { - return regs.GetRegisterAsFloat(instr.gpr20); - } else { - return regs.GetRegisterAsFloat(instr.gpr20.Value() + 1); - } - }(); - shader.AddLine("float lod = " + lod + ';'); - // TODO: Figure if A suffix changes the equation at all. - texture = "textureLod(" + sampler + ", coords, lod)"; + if (!depth_compare_extra) { + texture = "textureLod(" + sampler + ", coords, " + lod_value + ')'; + } else { + texture = "texture(" + sampler + ", coords, " + depth_value + ')'; + LOG_WARNING(HW_GPU, + "OpenGL Limitation: can't set lod value along depth compare"); + } break; } default: { - texture = "texture(" + sampler + ", coords)"; + if (!depth_compare_extra) { + texture = "texture(" + sampler + ", coords)"; + } else { + texture = "texture(" + sampler + ", coords, " + depth_value + ')'; + } UNIMPLEMENTED_MSG("Unhandled texture process mode {}", static_cast<u32>(instr.tex.GetTextureProcessMode())); } } if (!depth_compare) { + shader.AddLine("vec4 texture_tmp = " + texture + ';'); std::size_t dest_elem{}; for (std::size_t elem = 0; elem < 4; ++elem) { if (!instr.tex.IsComponentEnabled(elem)) { // Skip disabled components continue; } - regs.SetRegisterToFloat(instr.gpr0, elem, texture, 1, 4, false, dest_elem); + regs.SetRegisterToFloat(instr.gpr0, elem, "texture_tmp", 1, 4, false, + dest_elem); ++dest_elem; } } else { regs.SetRegisterToFloat(instr.gpr0, 0, texture, 1, 1, false); } --shader.scope; - shader.AddLine("}"); + shader.AddLine('}'); break; } case OpCode::Id::TEXS: { @@ -2694,41 +2729,76 @@ private: const bool depth_compare = instr.texs.UsesMiscMode(Tegra::Shader::TextureMiscMode::DC); u32 num_coordinates = TextureCoordinates(texture_type); - if (depth_compare) - num_coordinates += 1; - - // Scope to avoid variable name overlaps. - shader.AddLine('{'); - ++shader.scope; + const auto process_mode = instr.texs.GetTextureProcessMode(); + std::string lod_value; + std::string coord; + u32 lod_offset = 0; + if (process_mode == Tegra::Shader::TextureProcessMode::LL) { + if (num_coordinates > 2) { + lod_value = regs.GetRegisterAsFloat(instr.gpr20.Value() + 1); + lod_offset = 2; + } else { + lod_value = regs.GetRegisterAsFloat(instr.gpr20); + lod_offset = 1; + } + } switch (num_coordinates) { + case 1: { + coord = "float coords = " + regs.GetRegisterAsFloat(instr.gpr8) + ';'; + break; + } case 2: { if (is_array) { - const std::string index = regs.GetRegisterAsInteger(instr.gpr8); - const std::string x = regs.GetRegisterAsFloat(instr.gpr8.Value() + 1); - const std::string y = regs.GetRegisterAsFloat(instr.gpr20); - shader.AddLine("vec3 coords = vec3(" + x + ", " + y + ", " + index + ");"); + if (depth_compare) { + const std::string index = regs.GetRegisterAsInteger(instr.gpr8); + const std::string x = regs.GetRegisterAsFloat(instr.gpr8.Value() + 1); + const std::string y = regs.GetRegisterAsFloat(instr.gpr20); + const std::string z = regs.GetRegisterAsFloat(instr.gpr20.Value() + 1); + coord = "vec4 coords = vec4(" + x + ", " + y + ", " + z + ", " + index + + ");"; + } else { + const std::string index = regs.GetRegisterAsInteger(instr.gpr8); + const std::string x = regs.GetRegisterAsFloat(instr.gpr8.Value() + 1); + const std::string y = regs.GetRegisterAsFloat(instr.gpr20); + coord = "vec3 coords = vec3(" + x + ", " + y + ", " + index + ");"; + } } else { - const std::string x = regs.GetRegisterAsFloat(instr.gpr8); - const std::string y = regs.GetRegisterAsFloat(instr.gpr20); - shader.AddLine("vec2 coords = vec2(" + x + ", " + y + ");"); + if (lod_offset != 0) { + if (depth_compare) { + const std::string x = regs.GetRegisterAsFloat(instr.gpr8); + const std::string y = + regs.GetRegisterAsFloat(instr.gpr8.Value() + 1); + const std::string z = + regs.GetRegisterAsFloat(instr.gpr20.Value() + lod_offset); + coord = "vec3 coords = vec3(" + x + ", " + y + ", " + z + ");"; + } else { + const std::string x = regs.GetRegisterAsFloat(instr.gpr8); + const std::string y = + regs.GetRegisterAsFloat(instr.gpr8.Value() + 1); + coord = "vec2 coords = vec2(" + x + ", " + y + ");"; + } + } else { + if (depth_compare) { + const std::string x = regs.GetRegisterAsFloat(instr.gpr8); + const std::string y = + regs.GetRegisterAsFloat(instr.gpr8.Value() + 1); + const std::string z = regs.GetRegisterAsFloat(instr.gpr20); + coord = "vec3 coords = vec3(" + x + ", " + y + ", " + z + ");"; + } else { + const std::string x = regs.GetRegisterAsFloat(instr.gpr8); + const std::string y = regs.GetRegisterAsFloat(instr.gpr20); + coord = "vec2 coords = vec2(" + x + ", " + y + ");"; + } + } } break; } case 3: { - if (is_array) { - const std::string index = regs.GetRegisterAsInteger(instr.gpr8); - const std::string x = regs.GetRegisterAsFloat(instr.gpr8.Value() + 1); - const std::string y = regs.GetRegisterAsFloat(instr.gpr8.Value() + 2); - const std::string z = regs.GetRegisterAsFloat(instr.gpr20); - shader.AddLine("vec4 coords = vec4(" + x + ", " + y + ", " + z + ", " + - index + ");"); - } else { - const std::string x = regs.GetRegisterAsFloat(instr.gpr8); - const std::string y = regs.GetRegisterAsFloat(instr.gpr8.Value() + 1); - const std::string z = regs.GetRegisterAsFloat(instr.gpr20); - shader.AddLine("vec3 coords = vec3(" + x + ", " + y + ", " + z + ");"); - } + const std::string x = regs.GetRegisterAsFloat(instr.gpr8); + const std::string y = regs.GetRegisterAsFloat(instr.gpr8.Value() + 1); + const std::string z = regs.GetRegisterAsFloat(instr.gpr20); + coord = "vec3 coords = vec3(" + x + ", " + y + ", " + z + ");"; break; } default: @@ -2738,14 +2808,14 @@ private: // Fallback to interpreting as a 2D texture for now const std::string x = regs.GetRegisterAsFloat(instr.gpr8); const std::string y = regs.GetRegisterAsFloat(instr.gpr20); - shader.AddLine("vec2 coords = vec2(" + x + ", " + y + ");"); + coord = "vec2 coords = vec2(" + x + ", " + y + ");"; texture_type = Tegra::Shader::TextureType::Texture2D; is_array = false; } const std::string sampler = GetSampler(instr.sampler, texture_type, is_array, depth_compare); std::string texture; - switch (instr.texs.GetTextureProcessMode()) { + switch (process_mode) { case Tegra::Shader::TextureProcessMode::None: { texture = "texture(" + sampler + ", coords)"; break; @@ -2759,8 +2829,7 @@ private: break; } case Tegra::Shader::TextureProcessMode::LL: { - const std::string op_c = regs.GetRegisterAsFloat(instr.gpr20.Value() + 1); - texture = "textureLod(" + sampler + ", coords, " + op_c + ')'; + texture = "textureLod(" + sampler + ", coords, " + lod_value + ')'; break; } default: { @@ -2770,13 +2839,11 @@ private: } } if (!depth_compare) { - WriteTexsInstruction(instr, texture); + WriteTexsInstruction(instr, coord, texture); } else { - WriteTexsInstruction(instr, "vec4(" + texture + ')'); + WriteTexsInstruction(instr, coord, "vec4(" + texture + ')'); } - shader.AddLine('}'); - --shader.scope; break; } case OpCode::Id::TLDS: { @@ -2798,11 +2865,12 @@ private: // Scope to avoid variable name overlaps. shader.AddLine('{'); ++shader.scope; + std::string coords; switch (texture_type) { case Tegra::Shader::TextureType::Texture1D: { const std::string x = regs.GetRegisterAsInteger(instr.gpr8); - shader.AddLine("int coords = " + x + ';'); + coords = "float coords = " + x + ';'; break; } case Tegra::Shader::TextureType::Texture2D: { @@ -2810,7 +2878,8 @@ private: const std::string x = regs.GetRegisterAsInteger(instr.gpr8); const std::string y = regs.GetRegisterAsInteger(instr.gpr20); - shader.AddLine("ivec2 coords = ivec2(" + x + ", " + y + ");"); + // shader.AddLine("ivec2 coords = ivec2(" + x + ", " + y + ");"); + coords = "ivec2 coords = ivec2(" + x + ", " + y + ");"; extra_op_offset = 1; break; } @@ -2838,7 +2907,7 @@ private: static_cast<u32>(instr.tlds.GetTextureProcessMode())); } } - WriteTexsInstruction(instr, texture); + WriteTexsInstruction(instr, coords, texture); --shader.scope; shader.AddLine('}'); @@ -2897,14 +2966,17 @@ private: const std::string texture = "textureGather(" + sampler + ", coords, " + std::to_string(instr.tld4.component) + ')'; + if (!depth_compare) { + shader.AddLine("vec4 texture_tmp = " + texture + ';'); std::size_t dest_elem{}; for (std::size_t elem = 0; elem < 4; ++elem) { if (!instr.tex.IsComponentEnabled(elem)) { // Skip disabled components continue; } - regs.SetRegisterToFloat(instr.gpr0, elem, texture, 1, 4, false, dest_elem); + regs.SetRegisterToFloat(instr.gpr0, elem, "texture_tmp", 1, 4, false, + dest_elem); ++dest_elem; } } else { @@ -2925,6 +2997,7 @@ private: // Scope to avoid variable name overlaps. shader.AddLine('{'); ++shader.scope; + std::string coords; const bool depth_compare = instr.tld4s.UsesMiscMode(Tegra::Shader::TextureMiscMode::DC); @@ -2934,20 +3007,19 @@ private: const std::string sampler = GetSampler( instr.sampler, Tegra::Shader::TextureType::Texture2D, false, depth_compare); if (!depth_compare) { - shader.AddLine("vec2 coords = vec2(" + op_a + ", " + op_b + ");"); + coords = "vec2 coords = vec2(" + op_a + ", " + op_b + ");"; } else { // Note: TLD4S coordinate encoding works just like TEXS's - shader.AddLine( - "float op_y = " + regs.GetRegisterAsFloat(instr.gpr8.Value() + 1) + ';'); - shader.AddLine("vec3 coords = vec3(" + op_a + ", op_y, " + op_b + ");"); + const std::string op_y = regs.GetRegisterAsFloat(instr.gpr8.Value() + 1); + coords = "vec3 coords = vec3(" + op_a + ", " + op_y + ", " + op_b + ");"; } const std::string texture = "textureGather(" + sampler + ", coords, " + std::to_string(instr.tld4s.component) + ')'; if (!depth_compare) { - WriteTexsInstruction(instr, texture); + WriteTexsInstruction(instr, coords, texture); } else { - WriteTexsInstruction(instr, "vec4(" + texture + ')'); + WriteTexsInstruction(instr, coords, "vec4(" + texture + ')'); } --shader.scope; |