include/GL/glfbdev.h

   1 /*
   2  * Mesa 3-D graphics library
   3  * Version:  5.1
   4  *
   5  * Copyright (C) 1999-2003  Brian Paul   All Rights Reserved.
   6  *
   7  * Permission is hereby granted, free of charge, to any person obtaining a
   8  * copy of this software and associated documentation files (the "Software"),
   9  * to deal in the Software without restriction, including without limitation
  10  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  11  * and/or sell copies of the Software, and to permit persons to whom the
  12  * Software is furnished to do so, subject to the following conditions:
  13  *
  14  * The above copyright notice and this permission notice shall be included
  15  * in all copies or substantial portions of the Software.
  16  *
  17  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  18  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  19  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  20  * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
  21  * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  22  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  23  */
  24
  25
  26 #ifndef GLFBDEV_H
  27 #define GLFBDEV_H
  28
  29
  30 /* avoid including linux/fb.h */
  31 struct fb_fix_screeninfo;
  32 struct fb_var_screeninfo;
  33
  34
  35 /* public types */
  36 typedef struct GLFBDevVisualRec *GLFBDevVisualPtr;
  37 typedef struct GLFBDevBufferRec *GLFBDevBufferPtr;
  38 typedef struct GLFBDevContextRec *GLFBDevContextPtr;
  39
  40
  41 /* API version */
  42 #define GLFBDEV_VERSION_1_0       1
  43
  44
  45 /* For glFBDevCreateVisual */
  46 #define GLFBDEV_DOUBLE_BUFFER   100
  47 #define GLFBDEV_COLOR_INDEX     101
  48 #define GLFBDEV_DEPTH_SIZE      102
  49 #define GLFBDEV_STENCIL_SIZE    103
  50 #define GLFBDEV_ACCUM_SIZE      104
  51 #define GLFBDEV_LEVEL           105
  52 #define GLFBDEV_NONE              0
  53
  54 /* For glFBDevGetString */
  55 #define GLFBDEV_VERSION         200
  56 #define GLFBDEV_VENDOR          201
  57
  58
  59 /* Misc functions */
  60
  61 extern const char *
  62 glFBDevGetString( int str );
  63
  64
  65 typedef void (*GLFBDevProc)();
  66
  67
  68 extern const GLFBDevProc
  69 glFBDevGetProcAddress( const char *procName );
  70
  71
  72
  73 /**
  74  * Create a GLFBDevVisual.
  75  * \param fixInfo - needed to get the visual types, etc.
  76  * \param varInfo - needed to get the bits_per_pixel, etc.
  77  * \param attribs - for requesting depth, stencil, accum buffers, etc.
  78  */
  79 extern GLFBDevVisualPtr
  80 glFBDevCreateVisual( const struct fb_fix_screeninfo *fixInfo,
  81                      const struct fb_var_screeninfo *varInfo,
  82                      const int *attribs );
  83
  84 extern void
  85 glFBDevDestroyVisual( GLFBDevVisualPtr visual );
  86
  87 extern int
  88 glFBDevGetVisualAttrib( const GLFBDevVisualPtr visual, int attrib);
  89
  90
  91
  92 /**
  93  * Create a GLFBDevBuffer.
  94  * \param fixInfo, varInfo - needed in order to get the screen size
  95  * (resolution), etc.
  96  * \param visual - as returned by glFBDevCreateVisual()
  97  * \param frontBuffer - address of front color buffer
  98  * \param backBuffer - address of back color buffer (may be NULL)
  99  * \param size - size of the color buffer(s) in bytes.
 100  */
 101 extern GLFBDevBufferPtr
 102 glFBDevCreateBuffer( const struct fb_fix_screeninfo *fixInfo,
 103                      const struct fb_var_screeninfo *varInfo,
 104                      const GLFBDevVisualPtr visual,
 105                      void *frontBuffer, void *backBuffer, size_t size );
 106
 107 extern void
 108 glFBDevDestroyBuffer( GLFBDevBufferPtr buffer );
 109
 110 extern int
 111 glFBDevGetBufferAttrib( const GLFBDevBufferPtr buffer, int attrib);
 112
 113 extern GLFBDevBufferPtr
 114 glFBDevGetCurrentDrawBuffer( void );
 115
 116 extern GLFBDevBufferPtr
 117 glFBDevGetCurrentReadBuffer( void );
 118
 119 extern void
 120 glFBDevSwapBuffers( GLFBDevBufferPtr buffer );
 121
 122
 123
 124 /**
 125  * Create a GLFBDevContext.
 126  * \param visual - as created by glFBDevCreateVisual.
 127  * \param share - specifies another context with which to share textures,
 128  * display lists, etc. (may be NULL).
 129  */
 130 extern GLFBDevContextPtr
 131 glFBDevCreateContext( const GLFBDevVisualPtr visual, GLFBDevContextPtr share );
 132
 133 extern void
 134 glFBDevDestroyContext( GLFBDevContextPtr context );
 135
 136 extern int
 137 glFBDevGetContextAttrib( const GLFBDevContextPtr context, int attrib);
 138
 139 extern GLFBDevContextPtr
 140 glFBDevGetCurrentContext( void );
 141
 142 extern int
 143 glFBDevMakeCurrent( GLFBDevContextPtr context,
 144                     GLFBDevBufferPtr drawBuffer,
 145                     GLFBDevBufferPtr readBuffer );
 146
 147
 148 #endif /* GLFBDEV_H */