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Diffstat (limited to 'src/video_core/shader/shader.cpp')
| -rw-r--r-- | src/video_core/shader/shader.cpp | 105 |
1 files changed, 105 insertions, 0 deletions
diff --git a/src/video_core/shader/shader.cpp b/src/video_core/shader/shader.cpp new file mode 100644 index 000000000..e397e8e03 --- /dev/null +++ b/src/video_core/shader/shader.cpp @@ -0,0 +1,105 @@ +// Copyright 2015 Citra Emulator Project +// Licensed under GPLv2 or any later version +// Refer to the license.txt file included. + +#include "common/logging/log.h" +#include "common/profiler.h" + +#include "video_core/debug_utils/debug_utils.h" +#include "video_core/pica.h" + +#include "shader.h" +#include "shader_interpreter.h" + +namespace Pica { + +namespace Shader { + +void Setup(UnitState& state) { + // TODO(bunnei): This will be used by the JIT in a subsequent commit +} + +static Common::Profiling::TimingCategory shader_category("Vertex Shader"); + +OutputVertex Run(UnitState& state, const InputVertex& input, int num_attributes) { + auto& config = g_state.regs.vs; + auto& setup = g_state.vs; + + Common::Profiling::ScopeTimer timer(shader_category); + + state.program_counter = config.main_offset; + state.debug.max_offset = 0; + state.debug.max_opdesc_id = 0; + + // Setup input register table + const auto& attribute_register_map = config.input_register_map; + + if (num_attributes > 0) state.input_registers[attribute_register_map.attribute0_register] = input.attr[0]; + if (num_attributes > 1) state.input_registers[attribute_register_map.attribute1_register] = input.attr[1]; + if (num_attributes > 2) state.input_registers[attribute_register_map.attribute2_register] = input.attr[2]; + if (num_attributes > 3) state.input_registers[attribute_register_map.attribute3_register] = input.attr[3]; + if (num_attributes > 4) state.input_registers[attribute_register_map.attribute4_register] = input.attr[4]; + if (num_attributes > 5) state.input_registers[attribute_register_map.attribute5_register] = input.attr[5]; + if (num_attributes > 6) state.input_registers[attribute_register_map.attribute6_register] = input.attr[6]; + if (num_attributes > 7) state.input_registers[attribute_register_map.attribute7_register] = input.attr[7]; + if (num_attributes > 8) state.input_registers[attribute_register_map.attribute8_register] = input.attr[8]; + if (num_attributes > 9) state.input_registers[attribute_register_map.attribute9_register] = input.attr[9]; + if (num_attributes > 10) state.input_registers[attribute_register_map.attribute10_register] = input.attr[10]; + if (num_attributes > 11) state.input_registers[attribute_register_map.attribute11_register] = input.attr[11]; + if (num_attributes > 12) state.input_registers[attribute_register_map.attribute12_register] = input.attr[12]; + if (num_attributes > 13) state.input_registers[attribute_register_map.attribute13_register] = input.attr[13]; + if (num_attributes > 14) state.input_registers[attribute_register_map.attribute14_register] = input.attr[14]; + if (num_attributes > 15) state.input_registers[attribute_register_map.attribute15_register] = input.attr[15]; + + state.conditional_code[0] = false; + state.conditional_code[1] = false; + + RunInterpreter(state); + +#if PICA_DUMP_SHADERS + DebugUtils::DumpShader(setup.program_code.data(), state.debug.max_offset, setup.swizzle_data.data(), + state.debug.max_opdesc_id, config.main_offset, + g_state.regs.vs_output_attributes); // TODO: Don't hardcode VS here +#endif + + // Setup output data + OutputVertex ret; + // TODO(neobrain): Under some circumstances, up to 16 attributes may be output. We need to + // figure out what those circumstances are and enable the remaining outputs then. + for (int i = 0; i < 7; ++i) { + const auto& output_register_map = g_state.regs.vs_output_attributes[i]; // TODO: Don't hardcode VS here + + u32 semantics[4] = { + output_register_map.map_x, output_register_map.map_y, + output_register_map.map_z, output_register_map.map_w + }; + + for (int comp = 0; comp < 4; ++comp) { + float24* out = ((float24*)&ret) + semantics[comp]; + if (semantics[comp] != Regs::VSOutputAttributes::INVALID) { + *out = state.output_registers[i][comp]; + } else { + // Zero output so that attributes which aren't output won't have denormals in them, + // which would slow us down later. + memset(out, 0, sizeof(*out)); + } + } + } + + // The hardware takes the absolute and saturates vertex colors like this, *before* doing interpolation + for (int i = 0; i < 4; ++i) { + ret.color[i] = float24::FromFloat32( + std::fmin(std::fabs(ret.color[i].ToFloat32()), 1.0f)); + } + + LOG_TRACE(Render_Software, "Output vertex: pos (%.2f, %.2f, %.2f, %.2f), col(%.2f, %.2f, %.2f, %.2f), tc0(%.2f, %.2f)", + ret.pos.x.ToFloat32(), ret.pos.y.ToFloat32(), ret.pos.z.ToFloat32(), ret.pos.w.ToFloat32(), + ret.color.x.ToFloat32(), ret.color.y.ToFloat32(), ret.color.z.ToFloat32(), ret.color.w.ToFloat32(), + ret.tc0.u().ToFloat32(), ret.tc0.v().ToFloat32()); + + return ret; +} + +} // namespace Shader + +} // namespace Pica |