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 "pipe/p_inlines.h"
  32 #include "pipe/internal/p_winsys_screen.h"
  33 #include "util/u_format.h"
  34
  35
  36 /* Assumes all values are within bounds -- no checking at this level -
  37  * do it higher up if required.
  38  */
  39 static void
  40 i915_surface_copy(struct pipe_context *pipe,
  41                   struct pipe_surface *dst,
  42                   unsigned dstx, unsigned dsty,
  43                   struct pipe_surface *src,
  44                   unsigned srcx, unsigned srcy, unsigned width, unsigned height)
  45 {
  46    struct i915_texture *dst_tex = (struct i915_texture *)dst->texture;
  47    struct i915_texture *src_tex = (struct i915_texture *)src->texture;
  48    struct pipe_texture *dpt = &dst_tex->base;
  49    struct pipe_texture *spt = &src_tex->base;
  50
  51    assert( dst != src );
  52    assert( util_format_get_blocksize(dpt->format) == util_format_get_blocksize(spt->format) );
  53    assert( util_format_get_blockwidth(dpt->format) == util_format_get_blockwidth(spt->format) );
  54    assert( util_format_get_blockheight(dpt->format) == util_format_get_blockheight(spt->format) );
  55    assert( util_format_get_blockwidth(dpt->format) == 1 );
  56    assert( util_format_get_blockheight(dpt->format) == 1 );
  57
  58    i915_copy_blit( i915_context(pipe),
  59                    FALSE,
  60                    util_format_get_blocksize(dpt->format),
  61                    (unsigned short) src_tex->stride, src_tex->buffer, src->offset,
  62                    (unsigned short) dst_tex->stride, dst_tex->buffer, dst->offset,
  63                    (short) srcx, (short) srcy, (short) dstx, (short) dsty, (short) width, (short) height );
  64 }
  65
  66
  67 static void
  68 i915_surface_fill(struct pipe_context *pipe,
  69                   struct pipe_surface *dst,
  70                   unsigned dstx, unsigned dsty,
  71                   unsigned width, unsigned height, unsigned value)
  72 {
  73    struct i915_texture *tex = (struct i915_texture *)dst->texture;
  74    struct pipe_texture *pt = &tex->base;
  75
  76    assert(util_format_get_blockwidth(pt->format) == 1);
  77    assert(util_format_get_blockheight(pt->format) == 1);
  78
  79    i915_fill_blit( i915_context(pipe),
  80                    util_format_get_blocksize(pt->format),
  81                    (unsigned short) tex->stride,
  82                    tex->buffer, dst->offset,
  83                    (short) dstx, (short) dsty,
  84                    (short) width, (short) height,
  85                    value );
  86 }
  87
  88
  89 void
  90 i915_init_surface_functions(struct i915_context *i915)
  91 {
  92    i915->base.surface_copy = i915_surface_copy;
  93    i915->base.surface_fill = i915_surface_fill;
  94 }