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// Copyright 2018 yuzu Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#pragma once
#include <array>
#include <glad/glad.h>
#include "common/common_types.h"
#include "common/logging/log.h"
#include "video_core/engines/maxwell_3d.h"
using GLvec2 = std::array<GLfloat, 2>;
using GLvec3 = std::array<GLfloat, 3>;
using GLvec4 = std::array<GLfloat, 4>;
using GLuvec2 = std::array<GLuint, 2>;
using GLuvec3 = std::array<GLuint, 3>;
using GLuvec4 = std::array<GLuint, 4>;
namespace MaxwellToGL {
using Maxwell = Tegra::Engines::Maxwell3D::Regs;
inline GLenum VertexType(Maxwell::VertexAttribute attrib) {
switch (attrib.type) {
case Maxwell::VertexAttribute::Type::UnsignedNorm: {
switch (attrib.size) {
case Maxwell::VertexAttribute::Size::Size_8_8_8_8:
return GL_UNSIGNED_BYTE;
}
LOG_CRITICAL(Render_OpenGL, "Unimplemented vertex size=%s", attrib.SizeString().c_str());
UNREACHABLE();
return {};
}
case Maxwell::VertexAttribute::Type::Float:
return GL_FLOAT;
}
LOG_CRITICAL(Render_OpenGL, "Unimplemented vertex type=%s", attrib.TypeString().c_str());
UNREACHABLE();
return {};
}
inline GLenum PrimitiveTopology(Maxwell::PrimitiveTopology topology) {
switch (topology) {
case Maxwell::PrimitiveTopology::Triangles:
return GL_TRIANGLES;
case Maxwell::PrimitiveTopology::TriangleStrip:
return GL_TRIANGLE_STRIP;
}
LOG_CRITICAL(Render_OpenGL, "Unimplemented primitive topology=%d", topology);
UNREACHABLE();
return {};
}
inline GLenum TextureFilterMode(Tegra::Texture::TextureFilter filter_mode) {
switch (filter_mode) {
case Tegra::Texture::TextureFilter::Linear:
return GL_LINEAR;
case Tegra::Texture::TextureFilter::Nearest:
return GL_NEAREST;
}
LOG_CRITICAL(Render_OpenGL, "Unimplemented texture filter mode=%u",
static_cast<u32>(filter_mode));
UNREACHABLE();
return {};
}
inline GLenum WrapMode(Tegra::Texture::WrapMode wrap_mode) {
switch (wrap_mode) {
case Tegra::Texture::WrapMode::ClampToEdge:
return GL_CLAMP_TO_EDGE;
case Tegra::Texture::WrapMode::ClampOGL:
// TODO(Subv): GL_CLAMP was removed as of OpenGL 3.1, to implement GL_CLAMP, we can use
// GL_CLAMP_TO_BORDER to get the border color of the texture, and then sample the edge to
// manually mix them. However the shader part of this is not yet implemented.
return GL_CLAMP_TO_BORDER;
}
LOG_CRITICAL(Render_OpenGL, "Unimplemented texture wrap mode=%u", static_cast<u32>(wrap_mode));
UNREACHABLE();
return {};
}
} // namespace MaxwellToGL
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