1 /**************************************************************************
3 * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
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:
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
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.
26 **************************************************************************/
28 #include "i915_surface.h"
29 #include "i915_resource.h"
30 #include "i915_blit.h"
31 #include "i915_screen.h"
32 #include "pipe/p_defines.h"
33 #include "util/u_inlines.h"
34 #include "util/u_math.h"
35 #include "util/u_format.h"
36 #include "util/u_memory.h"
39 /* Assumes all values are within bounds -- no checking at this level -
40 * do it higher up if required.
43 i915_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
)
49 struct i915_texture
*dst_tex
= i915_texture(dst
->texture
);
50 struct i915_texture
*src_tex
= i915_texture(src
->texture
);
51 struct pipe_resource
*dpt
= &dst_tex
->b
.b
;
52 struct pipe_resource
*spt
= &src_tex
->b
.b
;
55 assert( util_format_get_blocksize(dpt
->format
) == util_format_get_blocksize(spt
->format
) );
56 assert( util_format_get_blockwidth(dpt
->format
) == util_format_get_blockwidth(spt
->format
) );
57 assert( util_format_get_blockheight(dpt
->format
) == util_format_get_blockheight(spt
->format
) );
58 assert( util_format_get_blockwidth(dpt
->format
) == 1 );
59 assert( util_format_get_blockheight(dpt
->format
) == 1 );
61 i915_copy_blit( i915_context(pipe
),
63 util_format_get_blocksize(dpt
->format
),
64 (unsigned short) src_tex
->stride
, src_tex
->buffer
, src
->offset
,
65 (unsigned short) dst_tex
->stride
, dst_tex
->buffer
, dst
->offset
,
66 (short) srcx
, (short) srcy
, (short) dstx
, (short) dsty
, (short) width
, (short) height
);
71 i915_surface_fill(struct pipe_context
*pipe
,
72 struct pipe_surface
*dst
,
73 unsigned dstx
, unsigned dsty
,
74 unsigned width
, unsigned height
, unsigned value
)
76 struct i915_texture
*tex
= i915_texture(dst
->texture
);
77 struct pipe_resource
*pt
= &tex
->b
.b
;
79 assert(util_format_get_blockwidth(pt
->format
) == 1);
80 assert(util_format_get_blockheight(pt
->format
) == 1);
82 i915_fill_blit( i915_context(pipe
),
83 util_format_get_blocksize(pt
->format
),
84 (unsigned short) tex
->stride
,
85 tex
->buffer
, dst
->offset
,
86 (short) dstx
, (short) dsty
,
87 (short) width
, (short) height
,
93 * Screen surface functions
97 static struct pipe_surface
*
98 i915_get_tex_surface(struct pipe_screen
*screen
,
99 struct pipe_resource
*pt
,
100 unsigned face
, unsigned level
, unsigned zslice
,
103 struct i915_texture
*tex
= i915_texture(pt
);
104 struct pipe_surface
*ps
;
105 unsigned offset
; /* in bytes */
107 if (pt
->target
== PIPE_TEXTURE_CUBE
) {
108 offset
= tex
->image_offset
[level
][face
];
110 else if (pt
->target
== PIPE_TEXTURE_3D
) {
111 offset
= tex
->image_offset
[level
][zslice
];
114 offset
= tex
->image_offset
[level
][0];
119 ps
= CALLOC_STRUCT(pipe_surface
);
121 pipe_reference_init(&ps
->reference
, 1);
122 pipe_resource_reference(&ps
->texture
, pt
);
123 ps
->format
= pt
->format
;
124 ps
->width
= u_minify(pt
->width0
, level
);
125 ps
->height
= u_minify(pt
->height0
, level
);
133 i915_tex_surface_destroy(struct pipe_surface
*surf
)
135 pipe_resource_reference(&surf
->texture
, NULL
);
140 /* Probably going to make blits work on textures rather than surfaces.
143 i915_init_surface_functions(struct i915_context
*i915
)
145 i915
->base
.surface_copy
= i915_surface_copy
;
146 i915
->base
.surface_fill
= i915_surface_fill
;
149 /* No good reason for these to be in the screen.
152 i915_init_screen_surface_functions(struct i915_screen
*is
)
154 is
->base
.get_tex_surface
= i915_get_tex_surface
;
155 is
->base
.tex_surface_destroy
= i915_tex_surface_destroy
;