src/gallium/drivers/i965simple/brw_context.c

   1 /*
   2  Copyright (C) Intel Corp.  2006.  All Rights Reserved.
   3  Intel funded Tungsten Graphics (http://www.tungstengraphics.com) to
   4  develop this 3D driver.
   5
   6  Permission is hereby granted, free of charge, to any person obtaining
   7  a 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, sublicense, 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
  16  portions of the Software.
  17
  18  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  19  EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  20  MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
  21  IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
  22  LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  23  OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  24  WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  25
  26  **********************************************************************/
  27  /*
  28   * Authors:
  29   *   Keith Whitwell <keith@tungstengraphics.com>
  30   */
  31
  32
  33 #include "brw_context.h"
  34 #include "brw_defines.h"
  35 #include "brw_draw.h"
  36 #include "brw_vs.h"
  37 #include "brw_tex_layout.h"
  38 #include "brw_winsys.h"
  39
  40 #include "pipe/internal/p_winsys_screen.h"
  41 #include "pipe/p_context.h"
  42 #include "util/u_memory.h"
  43 #include "pipe/p_screen.h"
  44
  45
  46 #ifndef BRW_DEBUG
  47 int BRW_DEBUG = (0);
  48 #endif
  49
  50
  51 static void brw_destroy(struct pipe_context *pipe)
  52 {
  53    struct brw_context *brw = brw_context(pipe);
  54
  55    if(brw->winsys->destroy)
  56       brw->winsys->destroy(brw->winsys);
  57
  58    FREE(brw);
  59 }
  60
  61
  62 static void brw_clear(struct pipe_context *pipe, struct pipe_surface *ps,
  63                       unsigned clearValue)
  64 {
  65    int x, y, w, h;
  66    /* FIXME: corny... */
  67
  68    x = 0;
  69    y = 0;
  70    w = ps->width;
  71    h = ps->height;
  72
  73    pipe->surface_fill(pipe, ps, x, y, w, h, clearValue);
  74 }
  75
  76 static unsigned int
  77 brw_is_texture_referenced( struct pipe_context *pipe,
  78                            struct pipe_texture *texture,
  79                            unsigned face, unsigned level)
  80 {
  81    /**
  82     * FIXME: Optimize.
  83     */
  84
  85    return PIPE_REFERENCED_FOR_READ | PIPE_REFERENCED_FOR_WRITE;
  86 }
  87
  88 static unsigned int
  89 brw_is_buffer_referenced( struct pipe_context *pipe,
  90                           struct pipe_buffer *buf)
  91 {
  92    /**
  93     * FIXME: Optimize.
  94     */
  95
  96    return PIPE_REFERENCED_FOR_READ | PIPE_REFERENCED_FOR_WRITE;
  97 }
  98
  99 struct pipe_context *brw_create(struct pipe_screen *screen,
 100                                 struct brw_winsys *brw_winsys,
 101                                 unsigned pci_id)
 102 {
 103    struct brw_context *brw;
 104
 105    debug_printf("%s: creating brw_context with pci id 0x%x\n",
 106                 __FUNCTION__, pci_id);
 107
 108    brw = CALLOC_STRUCT(brw_context);
 109    if (brw == NULL)
 110       return NULL;
 111
 112    brw->winsys = brw_winsys;
 113    brw->pipe.winsys = screen->winsys;
 114    brw->pipe.screen = screen;
 115
 116    brw->pipe.destroy = brw_destroy;
 117    brw->pipe.clear = brw_clear;
 118
 119    brw->pipe.is_texture_referenced = brw_is_texture_referenced;
 120    brw->pipe.is_buffer_referenced = brw_is_buffer_referenced;
 121
 122    brw_init_surface_functions(brw);
 123    brw_init_texture_functions(brw);
 124    brw_init_state_functions(brw);
 125    brw_init_flush_functions(brw);
 126    brw_init_draw_functions( brw );
 127
 128
 129    brw_init_state( brw );
 130
 131    brw->pci_id = pci_id;
 132    brw->dirty = ~0;
 133    brw->hardware_dirty = ~0;
 134
 135    memset(&brw->wm.bind, ~0, sizeof(brw->wm.bind));
 136
 137    return &brw->pipe;
 138 }
 139