dolphin/Source/Plugins/Plugin_VideoOGL/Src/ImageWrite.cpp

98 lines
2.9 KiB
C++

// Copyright (C) 2003-2008 Dolphin Project.
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, version 2.0.
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License 2.0 for more details.
// A copy of the GPL 2.0 should have been included with the program.
// If not, see http://www.gnu.org/licenses/
// Official SVN repository and contact information can be found at
// http://code.google.com/p/dolphin-emu/
#include "Globals.h"
#include <stdio.h>
#include "ImageWrite.h"
#if defined(_MSC_VER)
#pragma pack(push, 1)
#endif
struct TGA_HEADER
{
u8 identsize; // size of ID field that follows 18 u8 header (0 usually)
u8 colourmaptype; // type of colour map 0=none, 1=has palette
u8 imagetype; // type of image 0=none,1=indexed,2=rgb,3=grey,+8=rle packed
s16 colourmapstart; // first colour map entry in palette
s16 colourmaplength; // number of colours in palette
u8 colourmapbits; // number of bits per palette entry 15,16,24,32
s16 xstart; // image x origin
s16 ystart; // image y origin
s16 width; // image width in pixels
s16 height; // image height in pixels
u8 bits; // image bits per pixel 8,16,24,32
u8 descriptor; // image descriptor bits (vh flip bits)
// pixel data follows header
};
#if defined(_MSC_VER)
#pragma pack(pop)
#endif
bool SaveTGA(const char* filename, int width, int height, void* pdata)
{
TGA_HEADER hdr;
FILE* f = fopen(filename, "wb");
if (f == NULL)
return false;
_assert_(sizeof(TGA_HEADER) == 18 && sizeof(hdr) == 18);
memset(&hdr, 0, sizeof(hdr));
hdr.imagetype = 2;
hdr.bits = 32;
hdr.width = width;
hdr.height = height;
hdr.descriptor |= 8|(1<<5); // 8bit alpha, flip vertical
fwrite(&hdr, sizeof(hdr), 1, f);
fwrite(pdata, width * height * 4, 1, f);
fclose(f);
return true;
}
bool SaveTexture(const char* filename, u32 textarget, u32 tex, int width, int height)
{
GL_REPORT_ERRORD();
std::vector<u32> data(width * height);
glBindTexture(textarget, tex);
glGetTexImage(textarget, 0, GL_BGRA, GL_UNSIGNED_BYTE, &data[0]);
GLenum err;
GL_REPORT_ERROR();
if (err != GL_NO_ERROR)
{
return false;
}
return SaveTGA(filename, width, height, &data[0]);
}
bool SaveData(const char* filename, const char* data)
{
FILE *f = fopen(filename, "wb");
if (!f)
return false;
fwrite(data, strlen(data), 1, f);
fclose(f);
return true;
}