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73 lines
1.7 KiB
73 lines
1.7 KiB
#ifndef GRAPHICS_H
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#define GRAPHICS_H
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#include "declarations.h"
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enum BlendFuncType {
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BLEND_NORMAL,
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BLEND_COLORIZING
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};
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class Graphics
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{
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public:
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/// Initialize default OpenGL states
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void init();
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/// Termiante graphics
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void terminate();
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/// Check if a GL extension is supported
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bool isExtensionSupported(const char *extension);
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/// Resizes OpenGL viewport
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void resize(const Size& size);
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/// Restore original viewport
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void restoreViewport();
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/// Called before every render
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void beginRender();
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/// Called after every render
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void endRender();
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void bindColor(const Color& color);
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void bindTexture(const TexturePtr& texture);
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void bindBlendFunc(BlendFuncType blendType);
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// drawing API
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void drawTexturedRect(const Rect& screenCoords,
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const TexturePtr& texture,
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const Rect& textureCoords = Rect());
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void drawRepeatedTexturedRect(const Rect& screenCoords,
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const TexturePtr& texture,
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const Rect& textureCoords);
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void drawFilledRect(const Rect& screenCoords);
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void drawBoundingRect(const Rect& screenCoords,
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int innerLineWidth = 1);
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const Size& getScreenSize() const { return m_screenSize; }
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void startDrawing();
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void stopDrawing();
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bool isDrawing() const { return m_drawing; }
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int getOpacity() const { return m_opacity; }
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void setOpacity(int opacity) { m_opacity = opacity; }
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TexturePtr getEmptyTexture() { return m_emptyTexture; }
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private:
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bool m_drawing;
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int m_opacity;
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Size m_screenSize;
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TexturePtr m_emptyTexture;
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};
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extern Graphics g_graphics;
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#endif
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