src/gallium/drivers/i965simple/brw_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 "brw_blit.h"
  29 #include "brw_context.h"
  30 #include "brw_state.h"
  31 #include "pipe/p_defines.h"
  32 #include "pipe/p_inlines.h"
  33 #include "pipe/internal/p_winsys_screen.h"
  34 #include "util/u_tile.h"
  35 #include "util/u_rect.h"
  36
  37
  38
  39 /* Assumes all values are within bounds -- no checking at this level -
  40  * do it higher up if required.
  41  */
  42 static void
  43 brw_surface_copy(struct pipe_context *pipe,
  44                  struct pipe_surface *dst,
  45                  unsigned dstx, unsigned dsty,
  46                  struct pipe_surface *src,
  47                  unsigned srcx, unsigned srcy, unsigned width, unsigned height)
  48 {
  49    assert( dst != src );
  50    assert( dst->block.size == src->block.size );
  51    assert( dst->block.width == src->block.height );
  52    assert( dst->block.height == src->block.height );
  53
  54    if (0) {
  55       void *dst_map = pipe->screen->surface_map( pipe->screen,
  56                                                  dst,
  57                                                  PIPE_BUFFER_USAGE_CPU_WRITE );
  58
  59       const void *src_map = pipe->screen->surface_map( pipe->screen,
  60                                                        src,
  61                                                        PIPE_BUFFER_USAGE_CPU_READ );
  62
  63       util_copy_rect(dst_map,
  64                      &dst->block,
  65                      dst->stride,
  66                      dstx, dsty,
  67                      width, height,
  68                      src_map,
  69                      src->stride,
  70                      srcx, srcy);
  71
  72       pipe->screen->surface_unmap(pipe->screen, src);
  73       pipe->screen->surface_unmap(pipe->screen, dst);
  74    }
  75    else {
  76       struct brw_texture *dst_tex = (struct brw_texture *)dst->texture;
  77       struct brw_texture *src_tex = (struct brw_texture *)src->texture;
  78       assert(dst->block.width == 1);
  79       assert(dst->block.height == 1);
  80       brw_copy_blit(brw_context(pipe),
  81                     FALSE,
  82                     dst->block.size,
  83                     (short) src->stride/src->block.size, src_tex->buffer, src->offset, FALSE,
  84                     (short) dst->stride/dst->block.size, dst_tex->buffer, dst->offset, FALSE,
  85                     (short) srcx, (short) srcy, (short) dstx, (short) dsty,
  86                     (short) width, (short) height, PIPE_LOGICOP_COPY);
  87    }
  88 }
  89
  90
  91 static void
  92 brw_surface_fill(struct pipe_context *pipe,
  93                  struct pipe_surface *dst,
  94                  unsigned dstx, unsigned dsty,
  95                  unsigned width, unsigned height, unsigned value)
  96 {
  97    if (0) {
  98       void *dst_map = pipe->screen->surface_map( pipe->screen,
  99                                                  dst,
 100                                                  PIPE_BUFFER_USAGE_CPU_WRITE );
 101
 102       util_fill_rect(dst_map, &dst->block, dst->stride, dstx, dsty, width, height, value);
 103
 104       pipe->screen->surface_unmap(pipe->screen, dst);
 105    }
 106    else {
 107       struct brw_texture *tex = (struct brw_texture *)dst->texture;
 108       assert(dst->block.width == 1);
 109       assert(dst->block.height == 1);
 110       brw_fill_blit(brw_context(pipe),
 111                     dst->block.size,
 112                     (short) dst->stride/dst->block.size,
 113                     tex->buffer, dst->offset, FALSE,
 114                     (short) dstx, (short) dsty,
 115                     (short) width, (short) height,
 116                     value);
 117    }
 118 }
 119
 120
 121 void
 122 brw_init_surface_functions(struct brw_context *brw)
 123 {
 124    brw->pipe.surface_copy  = brw_surface_copy;
 125    brw->pipe.surface_fill  = brw_surface_fill;
 126 }