mirror of
https://github.com/jenshemprich/MacGLide.git
synced 2024-06-02 09:41:28 +00:00
71 lines
2.8 KiB
C++
71 lines
2.8 KiB
C++
//**************************************************************
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//* OpenGLide - Glide to OpenGL Wrapper
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//* http://openglide.sourceforge.net
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//*
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//* framebuffer emulation
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//*
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//* OpenGLide is OpenSource under LGPL license
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//* Mac version and additional features by Jens-Olaf Hemprich
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//**************************************************************
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#pragma once
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class Framebuffer
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{
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public:
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Framebuffer();
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~Framebuffer();
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static const int MaxTiles = 12;
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struct tilesize {GLint y; GLint x[MaxTiles];};
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public:
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bool initialise_buffers(BufferStruct* framebuffer, BufferStruct* texbuffer, FxU32 width, FxU32 height, const tilesize* tilesizetable, bool use_client_storage);
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bool initialise_buffers(BufferStruct* framebuffer, BufferStruct* texbuffer, FxU32 width, FxU32 height, FxU32 x_tile, FxU32 y_tile, bool use_client_storage);
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void free_buffers();
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void initialise_format(GrLfbWriteMode_t format);
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bool begin_write();
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bool end_write();
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bool end_write(FxU32 alpha);
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bool end_write(FxU32 alpha, GLfloat depth, bool pixelpipeline);
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bool end_write_opaque();
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protected:
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void Clear();
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bool draw(const tilesize* tilesizetable, bool pixelpipeline);
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bool drawCompiledVertexArrays(const tilesize* tilesizetable, int vertexarrayindex, int tilecount, bool pixelpipeline);
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int buildVertexArrays(const tilesize* tilesizetable, int vertexarrayindex);
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void set_gl_state(bool pixelpipeline);
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void restore_gl_state(bool pixelpipeline);
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inline bool createTextureData(FxU32* texbuffer, FxU32 x, FxU32 y, FxU32 x_step, FxU32 y_step);
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inline bool Convert565Kto8888(FxU16* buffer1, FxU32* buffer2, register FxU32 width, register FxU32 height, register FxU32 stride);
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inline bool Convert1555Kto8888(FxU16* buffer1, register FxU32* buffer2, FxU32 register width, register FxU32 height, register FxU32 stride);
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inline bool ConvertARGB8888Kto8888(FxU32* buffer1, register FxU32* buffer2, FxU32 register width, register FxU32 height, register FxU32 stride);
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static const int m_max_client_storage_textures = MaxTiles * MaxTiles;
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GLuint m_tex_name[m_max_client_storage_textures];
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bool m_use_client_storage;
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bool m_must_clear_buffer;
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GrOriginLocation_t m_origin;
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GLint m_glInternalFormat;
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GLint m_glFormat;
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GLint m_glType;
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FxU16 m_ChromaKey;
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bool m_format_valid;
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BufferStruct* m_framebuffer;
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BufferStruct* m_texbuffer;
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FxU32 m_width;
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FxU32 m_height;
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GLint m_x_step_start;
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GLint m_y_step_start;
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GLint m_x_step_start_opaque;
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GLint m_y_step_start_opaque;
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tilesize m_tilesizes[MaxTiles];
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int m_tilesizesCount;
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int m_tilesizesVertexArrayIndex;
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const tilesize* m_custom_tilesizes;
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int m_customtilesizesCount;
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int m_customtilesizesVertexArrayIndex;
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GLfloat m_glDepth;
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FxU32 m_glAlpha;
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// Pixelpipeline
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bool m_bRestoreColorCombine;
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bool m_bRestoreAlphaCombine;
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};
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