mirror of
https://github.com/love2d/love.git
synced 2026-08-15 15:51:12 +02:00
Bart van Strien
81 lines
2.3 KiB
C++
81 lines
2.3 KiB
C++
/**
|
|
* Copyright (c) 2006-2012 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.
|
|
**/
|
|
|
|
#ifndef LOVE_GRAPHICS_EFFECT_H
|
|
#define LOVE_GRAPHICS_EFFECT_H
|
|
|
|
#include "common/Object.h"
|
|
#include <string>
|
|
#include <map>
|
|
#include "OpenGL.h"
|
|
#include "Image.h"
|
|
#include "Canvas.h"
|
|
|
|
namespace love
|
|
{
|
|
namespace graphics
|
|
{
|
|
namespace opengl
|
|
{
|
|
// A fragment shader
|
|
class PixelEffect : public Object, public Volatile
|
|
{
|
|
public:
|
|
PixelEffect(const std::string &code);
|
|
virtual ~PixelEffect();
|
|
std::string getWarnings() const;
|
|
|
|
virtual bool loadVolatile();
|
|
virtual void unloadVolatile();
|
|
|
|
void attach();
|
|
static void detach();
|
|
static std::string getGLSLVersion();
|
|
static bool isSupported();
|
|
|
|
static PixelEffect *current;
|
|
|
|
void sendFloat(const std::string &name, int size, const GLfloat *vec, int count);
|
|
void sendMatrix(const std::string &name, int size, const GLfloat *m, int count);
|
|
void sendImage(const std::string &name, const Image &image);
|
|
void sendCanvas(const std::string &name, const Canvas &canvas);
|
|
|
|
private:
|
|
GLint getUniformLocation(const std::string &name);
|
|
void checkSetUniformError();
|
|
GLuint _program;
|
|
std::string _code; // volatile and stuff
|
|
|
|
// uniform location buffer
|
|
std::map<std::string, GLint> _uniforms;
|
|
|
|
// texture unit pool for setting images
|
|
static std::map<std::string, GLint> _texture_unit_pool;
|
|
static GLint _current_texture_unit;
|
|
static GLint _max_texture_units;
|
|
static GLint getTextureUnit(const std::string &name);
|
|
};
|
|
|
|
} // opengl
|
|
} // graphics
|
|
} // love
|
|
|
|
#endif // LOVE_GRAPHICS_EFFECT_H
|