forked from suyu/suyu
275 lines
9.1 KiB
C++
275 lines
9.1 KiB
C++
// Copyright 2018 yuzu Emulator Project
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// Licensed under GPLv2 or any later version
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// Refer to the license.txt file included.
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#pragma once
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#include <array>
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#include <glad/glad.h>
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#include "common/common_types.h"
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#include "common/logging/log.h"
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#include "video_core/engines/maxwell_3d.h"
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using GLvec2 = std::array<GLfloat, 2>;
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using GLvec3 = std::array<GLfloat, 3>;
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using GLvec4 = std::array<GLfloat, 4>;
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using GLuvec2 = std::array<GLuint, 2>;
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using GLuvec3 = std::array<GLuint, 3>;
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using GLuvec4 = std::array<GLuint, 4>;
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namespace MaxwellToGL {
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using Maxwell = Tegra::Engines::Maxwell3D::Regs;
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inline GLenum VertexType(Maxwell::VertexAttribute attrib) {
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switch (attrib.type) {
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case Maxwell::VertexAttribute::Type::UnsignedNorm: {
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switch (attrib.size) {
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case Maxwell::VertexAttribute::Size::Size_8_8:
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case Maxwell::VertexAttribute::Size::Size_8_8_8_8:
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return GL_UNSIGNED_BYTE;
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case Maxwell::VertexAttribute::Size::Size_16_16:
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return GL_UNSIGNED_SHORT;
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case Maxwell::VertexAttribute::Size::Size_10_10_10_2:
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return GL_UNSIGNED_INT_2_10_10_10_REV;
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}
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LOG_CRITICAL(Render_OpenGL, "Unimplemented vertex size={}", attrib.SizeString());
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UNREACHABLE();
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return {};
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}
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case Maxwell::VertexAttribute::Type::SignedNorm: {
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switch (attrib.size) {
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case Maxwell::VertexAttribute::Size::Size_8_8_8_8:
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return GL_BYTE;
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case Maxwell::VertexAttribute::Size::Size_16_16:
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return GL_SHORT;
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case Maxwell::VertexAttribute::Size::Size_10_10_10_2:
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return GL_INT_2_10_10_10_REV;
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}
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LOG_CRITICAL(Render_OpenGL, "Unimplemented vertex size={}", attrib.SizeString());
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UNREACHABLE();
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return {};
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}
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case Maxwell::VertexAttribute::Type::UnsignedInt:
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return GL_UNSIGNED_INT;
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case Maxwell::VertexAttribute::Type::Float:
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return GL_FLOAT;
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}
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LOG_CRITICAL(Render_OpenGL, "Unimplemented vertex type={}", attrib.TypeString());
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UNREACHABLE();
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return {};
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}
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inline GLenum IndexFormat(Maxwell::IndexFormat index_format) {
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switch (index_format) {
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case Maxwell::IndexFormat::UnsignedByte:
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return GL_UNSIGNED_BYTE;
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case Maxwell::IndexFormat::UnsignedShort:
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return GL_UNSIGNED_SHORT;
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case Maxwell::IndexFormat::UnsignedInt:
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return GL_UNSIGNED_INT;
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}
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LOG_CRITICAL(Render_OpenGL, "Unimplemented index_format={}", static_cast<u32>(index_format));
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UNREACHABLE();
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return {};
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}
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inline GLenum PrimitiveTopology(Maxwell::PrimitiveTopology topology) {
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switch (topology) {
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case Maxwell::PrimitiveTopology::Triangles:
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return GL_TRIANGLES;
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case Maxwell::PrimitiveTopology::TriangleStrip:
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return GL_TRIANGLE_STRIP;
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}
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LOG_CRITICAL(Render_OpenGL, "Unimplemented topology={}", static_cast<u32>(topology));
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UNREACHABLE();
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return {};
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}
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inline GLenum TextureFilterMode(Tegra::Texture::TextureFilter filter_mode) {
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switch (filter_mode) {
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case Tegra::Texture::TextureFilter::Linear:
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return GL_LINEAR;
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case Tegra::Texture::TextureFilter::Nearest:
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return GL_NEAREST;
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}
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LOG_CRITICAL(Render_OpenGL, "Unimplemented texture filter mode={}",
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static_cast<u32>(filter_mode));
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UNREACHABLE();
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return {};
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}
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inline GLenum WrapMode(Tegra::Texture::WrapMode wrap_mode) {
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switch (wrap_mode) {
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case Tegra::Texture::WrapMode::Wrap:
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return GL_REPEAT;
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case Tegra::Texture::WrapMode::Mirror:
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return GL_MIRRORED_REPEAT;
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case Tegra::Texture::WrapMode::ClampToEdge:
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return GL_CLAMP_TO_EDGE;
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case Tegra::Texture::WrapMode::Border:
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return GL_CLAMP_TO_BORDER;
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case Tegra::Texture::WrapMode::ClampOGL:
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// TODO(Subv): GL_CLAMP was removed as of OpenGL 3.1, to implement GL_CLAMP, we can use
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// GL_CLAMP_TO_BORDER to get the border color of the texture, and then sample the edge to
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// manually mix them. However the shader part of this is not yet implemented.
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return GL_CLAMP_TO_BORDER;
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}
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LOG_CRITICAL(Render_OpenGL, "Unimplemented texture wrap mode={}", static_cast<u32>(wrap_mode));
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UNREACHABLE();
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return {};
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}
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inline GLenum BlendEquation(Maxwell::Blend::Equation equation) {
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switch (equation) {
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case Maxwell::Blend::Equation::Add:
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return GL_FUNC_ADD;
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case Maxwell::Blend::Equation::Subtract:
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return GL_FUNC_SUBTRACT;
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case Maxwell::Blend::Equation::ReverseSubtract:
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return GL_FUNC_REVERSE_SUBTRACT;
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case Maxwell::Blend::Equation::Min:
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return GL_MIN;
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case Maxwell::Blend::Equation::Max:
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return GL_MAX;
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}
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LOG_CRITICAL(Render_OpenGL, "Unimplemented blend equation={}", static_cast<u32>(equation));
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UNREACHABLE();
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return {};
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}
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inline GLenum BlendFunc(Maxwell::Blend::Factor factor) {
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switch (factor) {
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case Maxwell::Blend::Factor::Zero:
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return GL_ZERO;
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case Maxwell::Blend::Factor::One:
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return GL_ONE;
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case Maxwell::Blend::Factor::SourceColor:
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return GL_SRC_COLOR;
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case Maxwell::Blend::Factor::OneMinusSourceColor:
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return GL_ONE_MINUS_SRC_COLOR;
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case Maxwell::Blend::Factor::SourceAlpha:
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return GL_SRC_ALPHA;
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case Maxwell::Blend::Factor::OneMinusSourceAlpha:
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return GL_ONE_MINUS_SRC_ALPHA;
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case Maxwell::Blend::Factor::DestAlpha:
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return GL_DST_ALPHA;
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case Maxwell::Blend::Factor::OneMinusDestAlpha:
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return GL_ONE_MINUS_DST_ALPHA;
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case Maxwell::Blend::Factor::DestColor:
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return GL_DST_COLOR;
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case Maxwell::Blend::Factor::OneMinusDestColor:
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return GL_ONE_MINUS_DST_COLOR;
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case Maxwell::Blend::Factor::SourceAlphaSaturate:
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return GL_SRC_ALPHA_SATURATE;
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case Maxwell::Blend::Factor::Source1Color:
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return GL_SRC1_COLOR;
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case Maxwell::Blend::Factor::OneMinusSource1Color:
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return GL_ONE_MINUS_SRC1_COLOR;
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case Maxwell::Blend::Factor::Source1Alpha:
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return GL_SRC1_ALPHA;
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case Maxwell::Blend::Factor::OneMinusSource1Alpha:
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return GL_ONE_MINUS_SRC1_ALPHA;
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case Maxwell::Blend::Factor::ConstantColor:
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return GL_CONSTANT_COLOR;
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case Maxwell::Blend::Factor::OneMinusConstantColor:
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return GL_ONE_MINUS_CONSTANT_COLOR;
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case Maxwell::Blend::Factor::ConstantAlpha:
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return GL_CONSTANT_ALPHA;
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case Maxwell::Blend::Factor::OneMinusConstantAlpha:
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return GL_ONE_MINUS_CONSTANT_ALPHA;
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}
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LOG_CRITICAL(Render_OpenGL, "Unimplemented blend factor={}", static_cast<u32>(factor));
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UNREACHABLE();
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return {};
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}
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inline GLenum SwizzleSource(Tegra::Texture::SwizzleSource source) {
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switch (source) {
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case Tegra::Texture::SwizzleSource::Zero:
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return GL_ZERO;
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case Tegra::Texture::SwizzleSource::R:
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return GL_RED;
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case Tegra::Texture::SwizzleSource::G:
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return GL_GREEN;
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case Tegra::Texture::SwizzleSource::B:
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return GL_BLUE;
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case Tegra::Texture::SwizzleSource::A:
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return GL_ALPHA;
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case Tegra::Texture::SwizzleSource::OneInt:
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case Tegra::Texture::SwizzleSource::OneFloat:
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return GL_ONE;
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}
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LOG_CRITICAL(Render_OpenGL, "Unimplemented swizzle source={}", static_cast<u32>(source));
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UNREACHABLE();
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return {};
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}
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inline GLenum ComparisonOp(Maxwell::ComparisonOp comparison) {
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switch (comparison) {
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case Maxwell::ComparisonOp::Never:
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case Maxwell::ComparisonOp::NeverOld:
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return GL_NEVER;
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case Maxwell::ComparisonOp::Less:
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case Maxwell::ComparisonOp::LessOld:
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return GL_LESS;
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case Maxwell::ComparisonOp::Equal:
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case Maxwell::ComparisonOp::EqualOld:
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return GL_EQUAL;
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case Maxwell::ComparisonOp::LessEqual:
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case Maxwell::ComparisonOp::LessEqualOld:
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return GL_LEQUAL;
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case Maxwell::ComparisonOp::Greater:
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case Maxwell::ComparisonOp::GreaterOld:
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return GL_GREATER;
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case Maxwell::ComparisonOp::NotEqual:
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case Maxwell::ComparisonOp::NotEqualOld:
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return GL_NOTEQUAL;
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case Maxwell::ComparisonOp::GreaterEqual:
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case Maxwell::ComparisonOp::GreaterEqualOld:
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return GL_GEQUAL;
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case Maxwell::ComparisonOp::Always:
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case Maxwell::ComparisonOp::AlwaysOld:
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return GL_ALWAYS;
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}
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LOG_CRITICAL(Render_OpenGL, "Unimplemented comparison op={}", static_cast<u32>(comparison));
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UNREACHABLE();
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return {};
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}
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inline GLenum FrontFace(Maxwell::Cull::FrontFace front_face) {
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switch (front_face) {
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case Maxwell::Cull::FrontFace::ClockWise:
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return GL_CW;
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case Maxwell::Cull::FrontFace::CounterClockWise:
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return GL_CCW;
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}
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LOG_CRITICAL(Render_OpenGL, "Unimplemented front face cull={}", static_cast<u32>(front_face));
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UNREACHABLE();
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return {};
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}
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inline GLenum CullFace(Maxwell::Cull::CullFace cull_face) {
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switch (cull_face) {
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case Maxwell::Cull::CullFace::Front:
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return GL_FRONT;
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case Maxwell::Cull::CullFace::Back:
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return GL_BACK;
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case Maxwell::Cull::CullFace::FrontAndBack:
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return GL_FRONT_AND_BACK;
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}
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LOG_CRITICAL(Render_OpenGL, "Unimplemented cull face={}", static_cast<u32>(cull_face));
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UNREACHABLE();
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return {};
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}
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} // namespace MaxwellToGL
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