src/mesa/main/renderbuffer.h

   1 /*
   2  * Mesa 3-D graphics library
   3  * Version:  6.5
   4  *
   5  * Copyright (C) 1999-2005  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 RENDERBUFFER_H
  27 #define RENDERBUFFER_H
  28
  29 #include "glheader.h"
  30 #include "mtypes.h"
  31
  32 struct gl_context;
  33 struct gl_framebuffer;
  34 struct gl_renderbuffer;
  35
  36 extern void
  37 _mesa_init_renderbuffer(struct gl_renderbuffer *rb, GLuint name);
  38
  39 extern struct gl_renderbuffer *
  40 _mesa_new_renderbuffer(struct gl_context *ctx, GLuint name);
  41
  42 extern void
  43 _mesa_delete_renderbuffer(struct gl_renderbuffer *rb);
  44
  45
  46 extern struct gl_renderbuffer *
  47 _mesa_new_soft_renderbuffer(struct gl_context *ctx, GLuint name);
  48
  49 void
  50 _mesa_map_soft_renderbuffer(struct gl_context *ctx,
  51                             struct gl_renderbuffer *rb,
  52                             GLuint x, GLuint y, GLuint w, GLuint h,
  53                             GLbitfield mode,
  54                             GLubyte **out_map,
  55                             GLint *out_stride);
  56
  57 void
  58 _mesa_unmap_soft_renderbuffer(struct gl_context *ctx,
  59                               struct gl_renderbuffer *rb);
  60
  61 extern void
  62 _mesa_set_renderbuffer_accessors(struct gl_renderbuffer *rb);
  63
  64 extern GLboolean
  65 _mesa_soft_renderbuffer_storage(struct gl_context *ctx, struct gl_renderbuffer *rb,
  66                                 GLenum internalFormat,
  67                                 GLuint width, GLuint height);
  68
  69 extern GLboolean
  70 _mesa_add_color_renderbuffers(struct gl_context *ctx, struct gl_framebuffer *fb,
  71                               GLuint rgbBits, GLuint alphaBits,
  72                               GLboolean frontLeft, GLboolean backLeft,
  73                               GLboolean frontRight, GLboolean backRight);
  74
  75 extern GLboolean
  76 _mesa_add_depth_renderbuffer(struct gl_context *ctx, struct gl_framebuffer *fb,
  77                              GLuint depthBits);
  78
  79 extern GLboolean
  80 _mesa_add_stencil_renderbuffer(struct gl_context *ctx, struct gl_framebuffer *fb,
  81                                GLuint stencilBits);
  82
  83
  84 extern GLboolean
  85 _mesa_add_accum_renderbuffer(struct gl_context *ctx, struct gl_framebuffer *fb,
  86                              GLuint redBits, GLuint greenBits,
  87                              GLuint blueBits, GLuint alphaBits);
  88
  89 extern GLboolean
  90 _mesa_add_aux_renderbuffers(struct gl_context *ctx, struct gl_framebuffer *fb,
  91                             GLuint bits, GLuint numBuffers);
  92
  93 extern void
  94 _mesa_add_soft_renderbuffers(struct gl_framebuffer *fb,
  95                              GLboolean color,
  96                              GLboolean depth,
  97                              GLboolean stencil,
  98                              GLboolean accum,
  99                              GLboolean alpha,
 100                              GLboolean aux);
 101
 102 extern void
 103 _mesa_add_renderbuffer(struct gl_framebuffer *fb,
 104                        gl_buffer_index bufferName, struct gl_renderbuffer *rb);
 105
 106 extern void
 107 _mesa_remove_renderbuffer(struct gl_framebuffer *fb,
 108                           gl_buffer_index bufferName);
 109
 110 extern void
 111 _mesa_reference_renderbuffer_(struct gl_renderbuffer **ptr,
 112                               struct gl_renderbuffer *rb);
 113
 114 static inline void
 115 _mesa_reference_renderbuffer(struct gl_renderbuffer **ptr,
 116                              struct gl_renderbuffer *rb)
 117 {
 118    if (*ptr != rb)
 119       _mesa_reference_renderbuffer_(ptr, rb);
 120 }
 121
 122
 123
 124 #endif /* RENDERBUFFER_H */