77 lines
2.7 KiB
C++
77 lines
2.7 KiB
C++
/*
|
|
Copyright (c) 2009 Christopher A. Taylor. All rights reserved.
|
|
|
|
Redistribution and use in source and binary forms, with or without
|
|
modification, are permitted provided that the following conditions are met:
|
|
|
|
* Redistributions of source code must retain the above copyright notice,
|
|
this list of conditions and the following disclaimer.
|
|
* Redistributions in binary form must reproduce the above copyright notice,
|
|
this list of conditions and the following disclaimer in the documentation
|
|
and/or other materials provided with the distribution.
|
|
* Neither the name of LibCat nor the names of its contributors may be used
|
|
to endorse or promote products derived from this software without
|
|
specific prior written permission.
|
|
|
|
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
|
|
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
|
|
LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
|
CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
|
SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
|
INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
|
CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
|
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
|
POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
|
|
#ifndef LOAD_BITMAP_HPP
|
|
#define LOAD_BITMAP_HPP
|
|
|
|
#include <cat/Platform.hpp>
|
|
|
|
namespace cat {
|
|
|
|
|
|
/*
|
|
LoadBitmap() loads a memory-mapped bitmap or a file from disk into RGBA format,
|
|
meaning the first byte of every pixel is Red, then Green, Blue, and Alpha.
|
|
The output data is useful for creating an OpenGL texture using GL_RGBA format.
|
|
The output width and height will be powers of two.
|
|
|
|
Parameters:
|
|
file, bytes : Memory-mapped file pointer and number of bytes in the file
|
|
path : Alternatively, the path to the file to load
|
|
width, height : The dimensions of the loaded file, in pixels
|
|
|
|
Returns: Zero on error, or a pointer to the rasterized RGBA pixels.
|
|
|
|
Free the allocated memory using Aligned::Delete(a);
|
|
*/
|
|
void *LoadBitmap(void *file, u32 bytes, u32 &width, u32 &height);
|
|
void *LoadBitmap(const char *path, u32 &width, u32 &height);
|
|
|
|
|
|
class BMPTokenizer
|
|
{
|
|
u8 trans_red, trans_green, trans_blue;
|
|
|
|
bool requirePOTS; // Require Power-of-Two Size
|
|
|
|
void rasterizeImage(u8 *image);
|
|
void onImage(u32 *image, u32 newWidth, u32 newHeight);
|
|
|
|
public:
|
|
BMPTokenizer();
|
|
~BMPTokenizer();
|
|
|
|
public:
|
|
bool LoadFile(const char *path);
|
|
};
|
|
|
|
|
|
} // namespace cat
|
|
|
|
#endif // LOAD_BITMAP_HPP
|