mirror of
https://github.com/love2d/love.git
synced 2026-08-14 01:20:56 +02:00
readded support for screenshots - love.graphics.newScreenshot() returns ImageData that can be manipulated as one pleases
This commit is contained in:
bill@Ixion
@@ -1,135 +1,170 @@
|
||||
/**
|
||||
* Copyright (c) 2006-2009 LOVE Development Team
|
||||
*
|
||||
* This software is provided 'as-is', without any express or implied
|
||||
* warranty. In no event will the authors be held liable for any damages
|
||||
* arising from the use of this software.
|
||||
*
|
||||
* Permission is granted to anyone to use this software for any purpose,
|
||||
* including commercial applications, and to alter it and redistribute it
|
||||
* freely, subject to the following restrictions:
|
||||
*
|
||||
* 1. The origin of this software must not be misrepresented; you must not
|
||||
* claim that you wrote the original software. If you use this software
|
||||
* in a product, an acknowledgment in the product documentation would be
|
||||
* appreciated but is not required.
|
||||
* 2. Altered source versions must be plainly marked as such, and must not be
|
||||
* misrepresented as being the original software.
|
||||
* 3. This notice may not be removed or altered from any source distribution.
|
||||
**/
|
||||
|
||||
#include "ImageData.h"
|
||||
|
||||
/**
|
||||
* Copyright (c) 2006-2009 LOVE Development Team
|
||||
*
|
||||
* This software is provided 'as-is', without any express or implied
|
||||
* warranty. In no event will the authors be held liable for any damages
|
||||
* arising from the use of this software.
|
||||
*
|
||||
* Permission is granted to anyone to use this software for any purpose,
|
||||
* including commercial applications, and to alter it and redistribute it
|
||||
* freely, subject to the following restrictions:
|
||||
*
|
||||
* 1. The origin of this software must not be misrepresented; you must not
|
||||
* claim that you wrote the original software. If you use this software
|
||||
* in a product, an acknowledgment in the product documentation would be
|
||||
* appreciated but is not required.
|
||||
* 2. Altered source versions must be plainly marked as such, and must not be
|
||||
* misrepresented as being the original software.
|
||||
* 3. This notice may not be removed or altered from any source distribution.
|
||||
**/
|
||||
|
||||
#include "ImageData.h"
|
||||
|
||||
// STD
|
||||
#include <iostream>
|
||||
|
||||
namespace love
|
||||
{
|
||||
namespace image
|
||||
{
|
||||
namespace devil
|
||||
{
|
||||
void ImageData::load(Data * data)
|
||||
{
|
||||
#include <iostream>
|
||||
|
||||
// LOVE
|
||||
#include <common/Exception.h>
|
||||
|
||||
namespace love
|
||||
{
|
||||
namespace image
|
||||
{
|
||||
namespace devil
|
||||
{
|
||||
void ImageData::load(Data * data)
|
||||
{
|
||||
// Generate DevIL image.
|
||||
ilGenImages(1, &image);
|
||||
|
||||
ilGenImages(1, &image);
|
||||
|
||||
// Bind the image.
|
||||
ilBindImage(image);
|
||||
|
||||
ilBindImage(image);
|
||||
|
||||
// Try to load the image.
|
||||
ILboolean success = ilLoadL(IL_TYPE_UNKNOWN, (void*)data->getData(), data->getSize());
|
||||
|
||||
ILboolean success = ilLoadL(IL_TYPE_UNKNOWN, (void*)data->getData(), data->getSize());
|
||||
|
||||
// Check for errors
|
||||
if(!success)
|
||||
{
|
||||
std::cerr << "Could not decode image." << std::endl;
|
||||
throw love::Exception("Could not decode image!");
|
||||
return;
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
width = ilGetInteger(IL_IMAGE_WIDTH);
|
||||
height = ilGetInteger(IL_IMAGE_HEIGHT);
|
||||
origin = ilGetInteger(IL_IMAGE_ORIGIN);
|
||||
|
||||
// Make sure the image is in RGBA format.
|
||||
ilConvertImage(IL_RGBA, IL_UNSIGNED_BYTE);
|
||||
|
||||
// This should always be four.
|
||||
bpp = ilGetInteger(IL_IMAGE_BPP);
|
||||
|
||||
if(bpp != 4)
|
||||
{
|
||||
std::cerr << "Bits per pixel != 4" << std::endl;
|
||||
return;
|
||||
}
|
||||
}
|
||||
|
||||
ImageData::ImageData(Data * data)
|
||||
{
|
||||
load(data);
|
||||
}
|
||||
|
||||
ImageData::ImageData(filesystem::File * file)
|
||||
{
|
||||
Data * data = file->read();
|
||||
load(data);
|
||||
data->release();
|
||||
}
|
||||
|
||||
ImageData::ImageData(int width, int height)
|
||||
: width(width), height(height), origin(IL_ORIGIN_UPPER_LEFT), bpp(4)
|
||||
{
|
||||
// Generate DevIL image.
|
||||
ilGenImages(1, &image);
|
||||
|
||||
// Bind the image.
|
||||
ilBindImage(image);
|
||||
|
||||
ilTexImage(width, height, 1, bpp, IL_RGBA, IL_UNSIGNED_BYTE, 0);
|
||||
}
|
||||
|
||||
ImageData::~ImageData()
|
||||
{
|
||||
ilDeleteImages(1, &image);
|
||||
}
|
||||
|
||||
int ImageData::getWidth() const
|
||||
{
|
||||
return width;
|
||||
}
|
||||
|
||||
int ImageData::getHeight() const
|
||||
{
|
||||
return height;
|
||||
}
|
||||
|
||||
void * ImageData::getData() const
|
||||
origin = ilGetInteger(IL_IMAGE_ORIGIN);
|
||||
|
||||
// Make sure the image is in RGBA format.
|
||||
ilConvertImage(IL_RGBA, IL_UNSIGNED_BYTE);
|
||||
|
||||
// This should always be four.
|
||||
bpp = ilGetInteger(IL_IMAGE_BPP);
|
||||
|
||||
if(bpp != 4)
|
||||
{
|
||||
std::cerr << "Bits per pixel != 4" << std::endl;
|
||||
return;
|
||||
}
|
||||
}
|
||||
|
||||
ImageData::ImageData(Data * data)
|
||||
{
|
||||
ilBindImage(image);
|
||||
return ilGetData();
|
||||
}
|
||||
|
||||
int ImageData::getSize() const
|
||||
{
|
||||
return width*height*bpp;
|
||||
}
|
||||
|
||||
void ImageData::setPixel(int x, int y, pixel c)
|
||||
{
|
||||
int tx = x > width-1 ? width-1 : x;
|
||||
int ty = y > height-1 ? height-1 : y;
|
||||
pixel * pixels = (pixel *)getData();
|
||||
pixels[y*width+x] = c;
|
||||
}
|
||||
|
||||
pixel ImageData::getPixel(int x, int y) const
|
||||
{
|
||||
int tx = x > width-1 ? width-1 : x;
|
||||
int ty = y > height-1 ? height-1 : y;
|
||||
pixel * pixels = (pixel *)getData();
|
||||
return pixels[y*width+x];
|
||||
}
|
||||
|
||||
} // devil
|
||||
} // image
|
||||
} // love
|
||||
load(data);
|
||||
}
|
||||
|
||||
ImageData::ImageData(filesystem::File * file)
|
||||
{
|
||||
Data * data = file->read();
|
||||
load(data);
|
||||
data->release();
|
||||
}
|
||||
|
||||
ImageData::ImageData(int width, int height)
|
||||
: width(width), height(height), origin(IL_ORIGIN_UPPER_LEFT), bpp(4)
|
||||
{
|
||||
// Generate DevIL image.
|
||||
ilGenImages(1, &image);
|
||||
|
||||
// Bind the image.
|
||||
ilBindImage(image);
|
||||
|
||||
ilTexImage(width, height, 1, bpp, IL_RGBA, IL_UNSIGNED_BYTE, 0);
|
||||
}
|
||||
|
||||
ImageData::ImageData(int width, int height, void *data)
|
||||
: width(width), height(height), origin(IL_ORIGIN_UPPER_LEFT), bpp(4)
|
||||
{
|
||||
// Generate DevIL image.
|
||||
ilGenImages(1, &image);
|
||||
// Bind the image.
|
||||
ilBindImage(image);
|
||||
// Try to load the data.
|
||||
bool success = ilTexImage(width, height, 1, bpp, IL_RGBA, IL_UNSIGNED_BYTE, data);
|
||||
int err = ilGetError();
|
||||
if (err != IL_NO_ERROR){
|
||||
switch (err) {
|
||||
case IL_ILLEGAL_OPERATION:
|
||||
throw love::Exception("Error: Illegal operation");
|
||||
break;
|
||||
case IL_INVALID_PARAM:
|
||||
throw love::Exception("Error: invalid parameters");
|
||||
break;
|
||||
case IL_OUT_OF_MEMORY:
|
||||
throw love::Exception("Error: out of memory");
|
||||
break;
|
||||
default:
|
||||
throw love::Exception("Error: unknown error");
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
if(!success) {
|
||||
throw love::Exception("Could not decode image data.");
|
||||
}
|
||||
}
|
||||
|
||||
ImageData::~ImageData()
|
||||
{
|
||||
ilDeleteImages(1, &image);
|
||||
}
|
||||
|
||||
int ImageData::getWidth() const
|
||||
{
|
||||
return width;
|
||||
}
|
||||
|
||||
int ImageData::getHeight() const
|
||||
{
|
||||
return height;
|
||||
}
|
||||
|
||||
void * ImageData::getData() const
|
||||
{
|
||||
ilBindImage(image);
|
||||
return ilGetData();
|
||||
}
|
||||
|
||||
int ImageData::getSize() const
|
||||
{
|
||||
return width*height*bpp;
|
||||
}
|
||||
|
||||
void ImageData::setPixel(int x, int y, pixel c)
|
||||
{
|
||||
int tx = x > width-1 ? width-1 : x;
|
||||
int ty = y > height-1 ? height-1 : y;
|
||||
pixel * pixels = (pixel *)getData();
|
||||
pixels[y*width+x] = c;
|
||||
}
|
||||
|
||||
pixel ImageData::getPixel(int x, int y) const
|
||||
{
|
||||
int tx = x > width-1 ? width-1 : x;
|
||||
int ty = y > height-1 ? height-1 : y;
|
||||
pixel * pixels = (pixel *)getData();
|
||||
return pixels[y*width+x];
|
||||
}
|
||||
|
||||
} // devil
|
||||
} // image
|
||||
} // love
|
||||
|
||||
Reference in New Issue
Block a user