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 #include "pipe/p_state.h"
  33 #include "pipe/softpipe/sp_surface.h"
  34
  35
  36 struct intel_context;
  37 struct intel_region;
  38
  39
  40 /**
  41  * Intel framebuffer, derived from gl_framebuffer.
  42  */
  43 struct intel_framebuffer
  44 {
  45    struct gl_framebuffer Base;
  46
  47    struct intel_renderbuffer *color_rb[3];
  48
  49    /* Drawable page flipping state */
  50    GLboolean pf_active;
  51    GLuint pf_seq;
  52    GLint pf_pipes;
  53    GLint pf_current_page;
  54    GLint pf_num_pages;
  55
  56    /* VBI
  57     */
  58    GLuint vbl_seq;
  59    GLuint vblank_flags;
  60    GLuint vbl_waited;
  61
  62    int64_t swap_ust;
  63    int64_t swap_missed_ust;
  64
  65    GLuint swap_count;
  66    GLuint swap_missed_count;
  67 };
  68
  69
  70 /**
  71  * Intel renderbuffer, derived from gl_renderbuffer.
  72  * Note: The PairedDepth and PairedStencil fields use renderbuffer IDs,
  73  * not pointers because in some circumstances a deleted renderbuffer could
  74  * result in a dangling pointer here.
  75  */
  76 struct intel_renderbuffer
  77 {
  78    struct gl_renderbuffer Base;
  79    struct intel_region *region;
  80    void *pfMap;                 /* possibly paged flipped map pointer */
  81    GLuint pfPitch;              /* possibly paged flipped pitch */
  82    GLboolean RenderToTexture;   /* RTT? */
  83
  84    GLuint PairedDepth;   /**< only used if this is a depth renderbuffer */
  85    GLuint PairedStencil; /**< only used if this is a stencil renderbuffer */
  86
  87    GLuint pf_pending;  /**< sequence number of pending flip */
  88
  89    GLuint vbl_pending;   /**< vblank sequence number of pending flip */
  90
  91    struct intel_surface *surface;
  92 };
  93
  94 #if 0
  95 extern struct intel_renderbuffer *intel_create_renderbuffer(GLenum intFormat,
  96                                                             GLsizei width,
  97                                                             GLsizei height,
  98                                                             int offset,
  99                                                             int pitch,
 100                                                             int cpp,
 101                                                             void *map);
 102 #endif
 103
 104 extern struct intel_renderbuffer *intel_new_renderbuffer_fb(GLuint intFormat);
 105
 106 extern void intel_fbo_init(struct intel_context *intel);
 107
 108
 109 /* XXX make inline or macro */
 110 extern struct intel_renderbuffer *intel_get_renderbuffer(struct gl_framebuffer
 111                                                          *fb,
 112                                                          GLuint attIndex);
 113
 114 extern void intel_flip_renderbuffers(struct intel_framebuffer *intel_fb);
 115
 116
 117 /* XXX make inline or macro */
 118 extern struct intel_region *intel_get_rb_region(struct gl_framebuffer *fb,
 119                                                 GLuint attIndex);
 120
 121
 122
 123 extern struct pipe_surface *
 124 intel_new_surface(GLuint intFormat);
 125
 126
 127 #endif /* INTEL_FBO_H */