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