84 lines
2.2 KiB
C
84 lines
2.2 KiB
C
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/**
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* Copyright (C) 2005-2012 Gekko Emulator
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*
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* @file utils.h
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* @author ShizZy <shizzy247@gmail.com>
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* @date 2012-12-28
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* @brief Utility functions (in general, not related to emulation) useful for video core
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*
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* @section LICENSE
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details at
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* http://www.gnu.org/copyleft/gpl.html
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*
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* Official project repository can be found at:
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* http://code.google.com/p/gekko-gc-emu/
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*/
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#pragma once
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#include "common_types.h"
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#include <string>
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namespace FormatPrecision {
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/// Adjust RGBA8 color with RGBA6 precision
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static inline u32 rgba8_with_rgba6(u32 src) {
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u32 color = src;
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color &= 0xFCFCFCFC;
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color |= (color >> 6) & 0x03030303;
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return color;
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}
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/// Adjust RGBA8 color with RGB565 precision
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static inline u32 rgba8_with_rgb565(u32 src) {
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u32 color = (src & 0xF8FCF8);
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color |= (color >> 5) & 0x070007;
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color |= (color >> 6) & 0x000300;
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color |= 0xFF000000;
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return color;
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}
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/// Adjust Z24 depth value with Z16 precision
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static inline u32 z24_with_z16(u32 src) {
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return (src & 0xFFFF00) | (src >> 16);
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}
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} // namespace
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namespace VideoCore {
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/// Structure for the TGA texture format (for dumping)
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struct TGAHeader {
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char idlength;
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char colourmaptype;
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char datatypecode;
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short int colourmaporigin;
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short int colourmaplength;
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short int x_origin;
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short int y_origin;
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short width;
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short height;
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char bitsperpixel;
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char imagedescriptor;
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};
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/**
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* Dumps a texture to TGA
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* @param filename String filename to dump texture to
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* @param width Width of texture in pixels
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* @param height Height of texture in pixels
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* @param raw_data Raw RGBA8 texture data to dump
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* @todo This should be moved to some general purpose/common code
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*/
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void DumpTGA(std::string filename, int width, int height, u8* raw_data);
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} // namespace
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