src/mesa/drivers/dri/i915tex/intel_fbo.h

   1 /**************************************************************************
   2  *
   3  * Copyright 2006 Tungsten Graphics, Inc., Cedar Park, Texas.
   4  * All Rights Reserved.
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a
   7  * copy of this software and associated documentation files (the
   8  * "Software"), to deal in the Software without restriction, including
   9  * without limitation the rights to use, copy, modify, merge, publish,
  10  * distribute, sub license, and/or sell copies of the Software, and to
  11  * permit persons to whom the Software is furnished to do so, subject to
  12  * the following conditions:
  13  *
  14  * The above copyright notice and this permission notice (including the
  15  * next paragraph) shall be included in all copies or substantial portions
  16  * of the Software.
  17  *
  18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  19  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  20  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
  21  * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
  22  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
  23  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  24  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  25  *
  26  **************************************************************************/
  27
  28 #ifndef INTEL_FBO_H
  29 #define INTEL_FBO_H
  30
  31
  32 struct intel_context;
  33 struct intel_region;
  34
  35
  36 /**
  37  * Intel renderbuffer, derived from gl_renderbuffer.
  38  * Note: The PairedDepth and PairedStencil fields use renderbuffer IDs,
  39  * not pointers because in some circumstances a deleted renderbuffer could
  40  * result in a dangling pointer here.
  41  */
  42 struct intel_renderbuffer
  43 {
  44    struct gl_renderbuffer Base;
  45    struct intel_region *region;
  46    void *pfMap;                 /* possibly paged flipped map pointer */
  47    GLuint pfPitch;              /* possibly paged flipped pitch */
  48    GLboolean RenderToTexture;   /* RTT? */
  49
  50    GLuint PairedDepth;   /**< only used if this is a depth renderbuffer */
  51    GLuint PairedStencil; /**< only used if this is a stencil renderbuffer */
  52 };
  53
  54
  55 extern struct intel_renderbuffer *intel_create_renderbuffer(GLenum intFormat,
  56                                                             GLsizei width,
  57                                                             GLsizei height,
  58                                                             int offset,
  59                                                             int pitch,
  60                                                             int cpp,
  61                                                             void *map);
  62
  63
  64 extern void intel_fbo_init(struct intel_context *intel);
  65
  66
  67 /* XXX make inline or macro */
  68 extern struct intel_renderbuffer *intel_get_renderbuffer(struct gl_framebuffer
  69                                                          *fb,
  70                                                          GLuint attIndex);
  71
  72
  73 /* XXX make inline or macro */
  74 extern struct intel_region *intel_get_rb_region(struct gl_framebuffer *fb,
  75                                                 GLuint attIndex);
  76
  77
  78
  79
  80 #endif /* INTEL_FBO_H */