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// Copyright 2015 Citra Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#pragma once
#include "common/common_types.h"
#include "video_core/pica.h"
#include "generated/gl_3_2_core.h"
namespace PicaToGL {
inline GLenum WrapMode(Pica::Regs::TextureConfig::WrapMode mode) {
static const GLenum wrap_mode_table[] = {
GL_CLAMP_TO_EDGE, // WrapMode::ClampToEdge
0, // Unknown
GL_REPEAT, // WrapMode::Repeat
GL_MIRRORED_REPEAT // WrapMode::MirroredRepeat
};
// Range check table for input
if (mode >= ARRAY_SIZE(wrap_mode_table)) {
LOG_CRITICAL(Render_OpenGL, "Unknown texture wrap mode %d", mode);
UNREACHABLE();
return GL_CLAMP_TO_EDGE;
}
GLenum gl_mode = wrap_mode_table[mode];
// Check for dummy values indicating an unknown mode
if (gl_mode == 0) {
LOG_CRITICAL(Render_OpenGL, "Unknown texture wrap mode %d", mode);
UNIMPLEMENTED();
return GL_CLAMP_TO_EDGE;
}
return gl_mode;
}
inline GLenum BlendFunc(u32 factor) {
static const GLenum blend_func_table[] = {
GL_ZERO, // BlendFactor::Zero
GL_ONE, // BlendFactor::One
GL_SRC_COLOR, // BlendFactor::SourceColor
GL_ONE_MINUS_SRC_COLOR, // BlendFactor::OneMinusSourceColor
GL_DST_COLOR, // BlendFactor::DestColor
GL_ONE_MINUS_DST_COLOR, // BlendFactor::OneMinusDestColor
GL_SRC_ALPHA, // BlendFactor::SourceAlpha
GL_ONE_MINUS_SRC_ALPHA, // BlendFactor::OneMinusSourceAlpha
GL_DST_ALPHA, // BlendFactor::DestAlpha
GL_ONE_MINUS_DST_ALPHA, // BlendFactor::OneMinusDestAlpha
GL_CONSTANT_COLOR, // BlendFactor::ConstantColor
GL_ONE_MINUS_CONSTANT_COLOR, // BlendFactor::OneMinusConstantColor
GL_CONSTANT_ALPHA, // BlendFactor::ConstantAlpha
GL_ONE_MINUS_CONSTANT_ALPHA, // BlendFactor::OneMinusConstantAlpha
GL_SRC_ALPHA_SATURATE, // BlendFactor::SourceAlphaSaturate
};
// Range check table for input
if (factor >= ARRAY_SIZE(blend_func_table)) {
LOG_CRITICAL(Render_OpenGL, "Unknown blend factor %d", factor);
UNREACHABLE();
return GL_ONE;
}
return blend_func_table[factor];
}
inline GLenum CompareFunc(u32 func) {
static const GLenum compare_func_table[] = {
GL_NEVER, // CompareFunc::Never
GL_ALWAYS, // CompareFunc::Always
GL_EQUAL, // CompareFunc::Equal
GL_NOTEQUAL, // CompareFunc::NotEqual
GL_LESS, // CompareFunc::LessThan
GL_LEQUAL, // CompareFunc::LessThanOrEqual
GL_GREATER, // CompareFunc::GreaterThan
GL_GEQUAL, // CompareFunc::GreaterThanOrEqual
};
// Range check table for input
if (func >= ARRAY_SIZE(compare_func_table)) {
LOG_CRITICAL(Render_OpenGL, "Unknown compare function %d", func);
UNREACHABLE();
return GL_ALWAYS;
}
return compare_func_table[func];
}
inline std::array<GLfloat, 4> ColorRGBA8(const u8* bytes) {
return { { bytes[0] / 255.0f,
bytes[1] / 255.0f,
bytes[2] / 255.0f,
bytes[3] / 255.0f
} };
}
} // namespace
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