src/mesa/pipe/i915simple/i915_surface.c

   1 /**************************************************************************
   2  *
   3  * Copyright 2003 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 #include "i915_context.h"
  29 #include "i915_state.h"
  30 #include "pipe/p_defines.h"
  31 #include "main/imports.h"
  32
  33
  34 struct i915_surface
  35 {
  36    struct pipe_surface surface;
  37    /* anything else? */
  38 };
  39
  40
  41 static void
  42 i915_get_tile(struct pipe_surface *ps,
  43               GLuint x, GLuint y, GLuint w, GLuint h, GLfloat *p)
  44 {
  45    /* any need to get tiles from i915 surfaces? */
  46 }
  47
  48
  49 static void
  50 i915_put_tile(struct pipe_surface *ps,
  51               GLuint x, GLuint y, GLuint w, GLuint h, const GLfloat *p)
  52 {
  53    /* any need to put tiles into i915 surfaces? */
  54 }
  55
  56
  57
  58 static struct pipe_surface *
  59 i915_surface_alloc(struct pipe_context *pipe, GLuint format)
  60 {
  61    struct i915_surface *surf = CALLOC_STRUCT(i915_surface);
  62
  63    if (!surf)
  64       return NULL;
  65
  66    surf->surface.format = format;
  67    surf->surface.refcount = 1;
  68
  69    surf->surface.get_tile = i915_get_tile;
  70    surf->surface.put_tile = i915_put_tile;
  71
  72    return &surf->surface;
  73 }
  74
  75
  76 void
  77 i915_init_surface_functions(struct i915_context *i915)
  78 {
  79    i915->pipe.surface_alloc = i915_surface_alloc;
  80 }