// 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 TextureFilterMode(Pica::Regs::TextureConfig::TextureFilter mode) {
static const GLenum filter_mode_table[] = {
GL_NEAREST, // TextureFilter::Nearest
GL_LINEAR // TextureFilter::Linear
};
// Range check table for input
if (mode >= ARRAY_SIZE(filter_mode_table)) {
LOG_CRITICAL(Render_OpenGL, "Unknown texture filtering mode %d", mode);
UNREACHABLE();
return GL_LINEAR;
}
GLenum gl_mode = filter_mode_table[mode];
// Check for dummy values indicating an unknown mode
if (gl_mode == 0) {
LOG_CRITICAL(Render_OpenGL, "Unknown texture filtering mode %d", mode);
UNIMPLEMENTED();
return GL_LINEAR;
}
return gl_mode;
}
inline GLenum WrapMode(Pica::Regs::TextureConfig::WrapMode mode) {
static const GLenum wrap_mode_table[] = {
GL_CLAMP_TO_EDGE, // WrapMode::ClampToEdge
GL_CLAMP_TO_BORDER,// WrapMode::ClampToBorder
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(Pica::Regs::BlendFactor 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 ((unsigned)factor >= ARRAY_SIZE(blend_func_table)) {
LOG_CRITICAL(Render_OpenGL, "Unknown blend factor %d", factor);
UNREACHABLE();
return GL_ONE;
}
return blend_func_table[(unsigned)factor];
}
inline GLenum LogicOp(Pica::Regs::LogicOp op) {
static const GLenum logic_op_table[] = {
GL_CLEAR, // Clear
GL_AND, // And
GL_AND_REVERSE, // AndReverse
GL_COPY, // Copy
GL_SET, // Set
GL_COPY_INVERTED, // CopyInverted
GL_NOOP, // NoOp
GL_INVERT, // Invert
GL_NAND, // Nand
GL_OR, // Or
GL_NOR, // Nor
GL_XOR, // Xor
GL_EQUIV, // Equiv
GL_AND_INVERTED, // AndInverted
GL_OR_REVERSE, // OrReverse
GL_OR_INVERTED, // OrInverted
};
// Range check table for input
if ((unsigned)op >= ARRAY_SIZE(logic_op_table)) {
LOG_CRITICAL(Render_OpenGL, "Unknown logic op %d", op);
UNREACHABLE();
return GL_COPY;
}
return logic_op_table[(unsigned)op];
}
inline GLenum CompareFunc(Pica::Regs::CompareFunc 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 ((unsigned)func >= ARRAY_SIZE(compare_func_table)) {
LOG_CRITICAL(Render_OpenGL, "Unknown compare function %d", func);
UNREACHABLE();
return GL_ALWAYS;
}
return compare_func_table[(unsigned)func];
}
inline GLenum StencilOp(Pica::Regs::StencilAction action) {
static const GLenum stencil_op_table[] = {
GL_KEEP, // StencilAction::Keep
GL_ZERO, // StencilAction::Zero
GL_REPLACE, // StencilAction::Replace
GL_INCR, // StencilAction::Increment
GL_DECR, // StencilAction::Decrement
GL_INVERT, // StencilAction::Invert
GL_INCR_WRAP, // StencilAction::IncrementWrap
GL_DECR_WRAP // StencilAction::DecrementWrap
};
// Range check table for input
if ((unsigned)action >= ARRAY_SIZE(stencil_op_table)) {
LOG_CRITICAL(Render_OpenGL, "Unknown stencil op %d", action);
UNREACHABLE();
return GL_KEEP;
}
return stencil_op_table[(unsigned)action];
}
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