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