src/gallium/drivers/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_blit.h"
  30 #include "i915_state.h"
  31 #include "pipe/p_defines.h"
  32 #include "pipe/p_inlines.h"
  33 #include "pipe/p_inlines.h"
  34 #include "pipe/internal/p_winsys_screen.h"
  35 #include "util/u_tile.h"
  36 #include "util/u_rect.h"
  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 i915_surface_copy(struct pipe_context *pipe,
  44                   boolean do_flip,
  45                   struct pipe_surface *dst,
  46                   unsigned dstx, unsigned dsty,
  47                   struct pipe_surface *src,
  48                   unsigned srcx, unsigned srcy, unsigned width, unsigned height)
  49 {
  50    assert( dst != src );
  51    assert( dst->block.size == src->block.size );
  52    assert( dst->block.width == src->block.height );
  53    assert( dst->block.height == src->block.height );
  54
  55    if (0) {
  56       void *dst_map = pipe->screen->surface_map( pipe->screen,
  57                                                  dst,
  58                                                  PIPE_BUFFER_USAGE_CPU_WRITE );
  59
  60       const void *src_map = pipe->screen->surface_map( pipe->screen,
  61                                                        src,
  62                                                        PIPE_BUFFER_USAGE_CPU_READ );
  63
  64       pipe_copy_rect(dst_map,
  65                      &dst->block,
  66                      dst->stride,
  67                      dstx, dsty,
  68                      width, height,
  69                      src_map,
  70                      do_flip ? -(int) src->stride : src->stride,
  71                      srcx, do_flip ? height - 1 - srcy : srcy);
  72
  73       pipe->screen->surface_unmap(pipe->screen, src);
  74       pipe->screen->surface_unmap(pipe->screen, dst);
  75    }
  76    else {
  77       assert(dst->block.width == 1);
  78       assert(dst->block.height == 1);
  79       i915_copy_blit( i915_context(pipe),
  80                       do_flip,
  81                       dst->block.size,
  82                       (unsigned short) src->stride, src->buffer, src->offset,
  83                       (unsigned short) dst->stride, dst->buffer, dst->offset,
  84                       (short) srcx, (short) srcy, (short) dstx, (short) dsty, (short) width, (short) height );
  85    }
  86 }
  87
  88
  89 static void
  90 i915_surface_fill(struct pipe_context *pipe,
  91                   struct pipe_surface *dst,
  92                   unsigned dstx, unsigned dsty,
  93                   unsigned width, unsigned height, unsigned value)
  94 {
  95    if (0) {
  96       void *dst_map = pipe->screen->surface_map( pipe->screen,
  97                                                  dst,
  98                                                  PIPE_BUFFER_USAGE_CPU_WRITE );
  99
 100       pipe_fill_rect(dst_map, &dst->block, dst->stride, dstx, dsty, width, height, value);
 101
 102       pipe->screen->surface_unmap(pipe->screen, dst);
 103    }
 104    else {
 105       assert(dst->block.width == 1);
 106       assert(dst->block.height == 1);
 107       i915_fill_blit( i915_context(pipe),
 108                       dst->block.size,
 109                       (unsigned short) dst->stride,
 110                       dst->buffer, dst->offset,
 111                       (short) dstx, (short) dsty,
 112                       (short) width, (short) height,
 113                       value );
 114    }
 115 }
 116
 117
 118 void
 119 i915_init_surface_functions(struct i915_context *i915)
 120 {
 121    i915->pipe.surface_copy = i915_surface_copy;
 122    i915->pipe.surface_fill = i915_surface_fill;
 123 }