tibia-client/src/framework/graphics/painter.h

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/*
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* Copyright (c) 2010-2012 OTClient <https://github.com/edubart/otclient>
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*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#ifndef PAINTER_H
#define PAINTER_H
#include "declarations.h"
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#include "coordsbuffer.h"
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#include "paintershaderprogram.h"
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#include "texture.h"
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class Painter
{
public:
enum CompositionMode {
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CompositionMode_Normal,
CompositionMode_Multiply,
CompositionMode_Add,
CompositionMode_Replace,
CompositionMode_DestBlending
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};
enum DrawMode {
Triangles = GL_TRIANGLES,
TriangleStrip = GL_TRIANGLE_STRIP
};
struct PainterState {
Matrix3 projectionMatrix;
Matrix2 textureMatrix;
Color color;
float opacity;
Painter::CompositionMode compositionMode;
Rect clipRect;
Texture *texture;
PainterShaderProgram *shaderProgram;
};
Painter();
virtual ~Painter() { }
virtual void bind() { refreshState(); }
virtual void unbind() { }
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void resetState();
virtual void refreshState();
void saveState();
void saveAndResetState();
void restoreSavedState();
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virtual void drawCoords(CoordsBuffer& coordsBuffer, DrawMode drawMode = Triangles) = 0;
virtual void drawTextureCoords(CoordsBuffer& coordsBuffer, const TexturePtr& texture) = 0;
virtual void drawTexturedRect(const Rect& dest, const TexturePtr& texture, const Rect& src) = 0;
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void drawTexturedRect(const Rect& dest, const TexturePtr& texture) { drawTexturedRect(dest, texture, Rect(Point(0,0), texture->getSize())); }
virtual void drawRepeatedTexturedRect(const Rect& dest, const TexturePtr& texture, const Rect& src) = 0;
virtual void drawFilledRect(const Rect& dest) = 0;
virtual void drawBoundingRect(const Rect& dest, int innerLineWidth = 1) = 0;
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virtual void setProjectionMatrix(const Matrix3& projectionMatrix) { m_projectionMatrix = projectionMatrix; }
virtual void setTextureMatrix(const Matrix2& textureMatrix) { m_textureMatrix = textureMatrix; }
virtual void setColor(const Color& color) { m_color = color; }
virtual void setOpacity(float opacity) { m_opacity = opacity; }
virtual void setCompositionMode(CompositionMode compositionMode);
virtual void setClipRect(const Rect& clipRect);
virtual void setShaderProgram(PainterShaderProgram *shaderProgram) { m_shaderProgram = shaderProgram; }
virtual void setTexture(Texture *texture);
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void setShaderProgram(const PainterShaderProgramPtr& shaderProgram) { setShaderProgram(shaderProgram.get()); }
void setTexture(const TexturePtr& texture) { setTexture(texture.get()); }
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Matrix3 getProjectionMatrix() { return m_projectionMatrix; }
Matrix2 getTextureMatrix() { return m_textureMatrix; }
Color getColor() { return m_color; }
float getOpacity() { return m_opacity; }
CompositionMode getCompositionMode() { return m_compositionMode; }
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Rect getClipRect() { return m_clipRect; }
PainterShaderProgram *getShaderProgram() { return m_shaderProgram; }
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void resetColor() { setColor(Color::white); }
void resetOpacity() { setOpacity(1.0f); }
void resetClipRect() { setClipRect(Rect()); }
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void resetCompositionMode() { setCompositionMode(CompositionMode_Normal); }
void resetShaderProgram() { setShaderProgram(nullptr); }
void resetTexture() { setTexture(nullptr); }
protected:
void updateGlTexture();
void updateGlCompositionMode();
void updateGlClipRect();
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CoordsBuffer m_coordsBuffer;
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Matrix3 m_projectionMatrix;
Matrix2 m_textureMatrix;
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Color m_color;
float m_opacity;
CompositionMode m_compositionMode;
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Rect m_clipRect;
Texture *m_texture;
PainterShaderProgram *m_shaderProgram;
PainterState m_olderStates[10];
int m_oldStateIndex;
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GLuint m_glTextureId;
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};
extern Painter *g_painter;
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#endif