src/gallium/drivers/i915/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 "pipe/p_defines.h"
  31 #include "util/u_format.h"
  32
  33
  34 /* Assumes all values are within bounds -- no checking at this level -
  35  * do it higher up if required.
  36  */
  37 static void
  38 i915_surface_copy(struct pipe_context *pipe,
  39                   struct pipe_surface *dst,
  40                   unsigned dstx, unsigned dsty,
  41                   struct pipe_surface *src,
  42                   unsigned srcx, unsigned srcy, unsigned width, unsigned height)
  43 {
  44    struct i915_texture *dst_tex = (struct i915_texture *)dst->texture;
  45    struct i915_texture *src_tex = (struct i915_texture *)src->texture;
  46    struct pipe_texture *dpt = &dst_tex->base;
  47    struct pipe_texture *spt = &src_tex->base;
  48
  49    assert( dst != src );
  50    assert( util_format_get_blocksize(dpt->format) == util_format_get_blocksize(spt->format) );
  51    assert( util_format_get_blockwidth(dpt->format) == util_format_get_blockwidth(spt->format) );
  52    assert( util_format_get_blockheight(dpt->format) == util_format_get_blockheight(spt->format) );
  53    assert( util_format_get_blockwidth(dpt->format) == 1 );
  54    assert( util_format_get_blockheight(dpt->format) == 1 );
  55
  56    i915_copy_blit( i915_context(pipe),
  57                    FALSE,
  58                    util_format_get_blocksize(dpt->format),
  59                    (unsigned short) src_tex->stride, src_tex->buffer, src->offset,
  60                    (unsigned short) dst_tex->stride, dst_tex->buffer, dst->offset,
  61                    (short) srcx, (short) srcy, (short) dstx, (short) dsty, (short) width, (short) height );
  62 }
  63
  64
  65 static void
  66 i915_surface_fill(struct pipe_context *pipe,
  67                   struct pipe_surface *dst,
  68                   unsigned dstx, unsigned dsty,
  69                   unsigned width, unsigned height, unsigned value)
  70 {
  71    struct i915_texture *tex = (struct i915_texture *)dst->texture;
  72    struct pipe_texture *pt = &tex->base;
  73
  74    assert(util_format_get_blockwidth(pt->format) == 1);
  75    assert(util_format_get_blockheight(pt->format) == 1);
  76
  77    i915_fill_blit( i915_context(pipe),
  78                    util_format_get_blocksize(pt->format),
  79                    (unsigned short) tex->stride,
  80                    tex->buffer, dst->offset,
  81                    (short) dstx, (short) dsty,
  82                    (short) width, (short) height,
  83                    value );
  84 }
  85
  86
  87 void
  88 i915_init_surface_functions(struct i915_context *i915)
  89 {
  90    i915->base.surface_copy = i915_surface_copy;
  91    i915->base.surface_fill = i915_surface_fill;
  92 }