1 /**************************************************************************
3 * Copyright 2009 VMware, Inc. All Rights Reserved.
5 * Permission is hereby granted, free of charge, to any person obtaining a
6 * copy of this software and associated documentation files (the
7 * "Software"), to deal in the Software without restriction, including
8 * without limitation the rights to use, copy, modify, merge, publish,
9 * distribute, sub license, and/or sell copies of the Software, and to
10 * permit persons to whom the Software is furnished to do so, subject to
11 * the following conditions:
13 * The above copyright notice and this permission notice (including the
14 * next paragraph) shall be included in all copies or substantial portions
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
18 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
19 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
20 * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
21 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
22 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
23 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
25 **************************************************************************/
29 * Surface utility functions.
35 #include "pipe/p_defines.h"
36 #include "pipe/p_screen.h"
37 #include "pipe/p_state.h"
39 #include "util/u_format.h"
40 #include "util/u_inlines.h"
41 #include "util/u_rect.h"
42 #include "util/u_surface.h"
43 #include "util/u_pack_color.h"
47 * Initialize a pipe_surface object. 'view' is considered to have
48 * uninitialized contents.
51 u_surface_default_template(struct pipe_surface
*surf
,
52 const struct pipe_resource
*texture
,
55 memset(surf
, 0, sizeof(*surf
));
57 surf
->format
= texture
->format
;
58 /* XXX should filter out all non-rt/ds bind flags ? */
63 * Helper to quickly create an RGBA rendering surface of a certain size.
64 * \param textureOut returns the new texture
65 * \param surfaceOut returns the new surface
66 * \return TRUE for success, FALSE if failure
69 util_create_rgba_surface(struct pipe_context
*pipe
,
70 uint width
, uint height
,
72 struct pipe_resource
**textureOut
,
73 struct pipe_surface
**surfaceOut
)
75 static const enum pipe_format rgbaFormats
[] = {
76 PIPE_FORMAT_B8G8R8A8_UNORM
,
77 PIPE_FORMAT_A8R8G8B8_UNORM
,
78 PIPE_FORMAT_A8B8G8R8_UNORM
,
81 const uint target
= PIPE_TEXTURE_2D
;
82 enum pipe_format format
= PIPE_FORMAT_NONE
;
83 struct pipe_resource templ
;
84 struct pipe_surface surf_templ
;
85 struct pipe_screen
*screen
= pipe
->screen
;
88 /* Choose surface format */
89 for (i
= 0; rgbaFormats
[i
]; i
++) {
90 if (screen
->is_format_supported(screen
, rgbaFormats
[i
],
92 format
= rgbaFormats
[i
];
96 if (format
== PIPE_FORMAT_NONE
)
97 return FALSE
; /* unable to get an rgba format!?! */
100 memset(&templ
, 0, sizeof(templ
));
101 templ
.target
= target
;
102 templ
.format
= format
;
103 templ
.last_level
= 0;
104 templ
.width0
= width
;
105 templ
.height0
= height
;
107 templ
.array_size
= 1;
110 *textureOut
= screen
->resource_create(screen
, &templ
);
115 u_surface_default_template(&surf_templ
, *textureOut
, bind
);
116 /* create surface / view into texture */
117 *surfaceOut
= pipe
->create_surface(pipe
,
121 pipe_resource_reference(textureOut
, NULL
);
130 * Release the surface and texture from util_create_rgba_surface().
133 util_destroy_rgba_surface(struct pipe_resource
*texture
,
134 struct pipe_surface
*surface
)
136 pipe_surface_reference(&surface
, NULL
);
137 pipe_resource_reference(&texture
, NULL
);
143 * Fallback function for pipe->resource_copy_region().
144 * Note: (X,Y)=(0,0) is always the upper-left corner.
147 util_resource_copy_region(struct pipe_context
*pipe
,
148 struct pipe_resource
*dst
,
150 unsigned dst_x
, unsigned dst_y
, unsigned dst_z
,
151 struct pipe_resource
*src
,
153 const struct pipe_box
*src_box
)
155 struct pipe_transfer
*src_trans
, *dst_trans
;
158 enum pipe_format src_format
, dst_format
;
159 unsigned w
= src_box
->width
;
160 unsigned h
= src_box
->height
;
163 assert((src
->target
== PIPE_BUFFER
&& dst
->target
== PIPE_BUFFER
) ||
164 (src
->target
!= PIPE_BUFFER
&& dst
->target
!= PIPE_BUFFER
));
169 src_format
= src
->format
;
170 dst_format
= dst
->format
;
172 src_trans
= pipe_get_transfer(pipe
,
177 src_box
->x
, src_box
->y
, w
, h
);
179 dst_trans
= pipe_get_transfer(pipe
,
186 assert(util_format_get_blocksize(dst_format
) == util_format_get_blocksize(src_format
));
187 assert(util_format_get_blockwidth(dst_format
) == util_format_get_blockwidth(src_format
));
188 assert(util_format_get_blockheight(dst_format
) == util_format_get_blockheight(src_format
));
190 src_map
= pipe
->transfer_map(pipe
, src_trans
);
191 dst_map
= pipe
->transfer_map(pipe
, dst_trans
);
196 if (src_map
&& dst_map
) {
197 if (dst
->target
== PIPE_BUFFER
&& src
->target
== PIPE_BUFFER
) {
198 memcpy(dst_map
, src_map
, w
);
200 util_copy_rect(dst_map
,
212 pipe
->transfer_unmap(pipe
, src_trans
);
213 pipe
->transfer_unmap(pipe
, dst_trans
);
215 pipe
->transfer_destroy(pipe
, src_trans
);
216 pipe
->transfer_destroy(pipe
, dst_trans
);
221 #define UBYTE_TO_USHORT(B) ((B) | ((B) << 8))
225 * Fallback for pipe->clear_render_target() function.
226 * XXX this looks too hackish to be really useful.
227 * cpp > 4 looks like a gross hack at best...
228 * Plus can't use these transfer fallbacks when clearing
229 * multisampled surfaces for instance.
232 util_clear_render_target(struct pipe_context
*pipe
,
233 struct pipe_surface
*dst
,
234 const union pipe_color_union
*color
,
235 unsigned dstx
, unsigned dsty
,
236 unsigned width
, unsigned height
)
238 struct pipe_transfer
*dst_trans
;
242 assert(dst
->texture
);
245 /* XXX: should handle multiple layers */
246 dst_trans
= pipe_get_transfer(pipe
,
249 dst
->u
.tex
.first_layer
,
251 dstx
, dsty
, width
, height
);
253 dst_map
= pipe
->transfer_map(pipe
, dst_trans
);
258 assert(dst_trans
->stride
> 0);
260 util_pack_color(color
->f
, dst
->texture
->format
, &uc
);
261 util_fill_rect(dst_map
, dst
->texture
->format
,
263 0, 0, width
, height
, &uc
);
266 pipe
->transfer_unmap(pipe
, dst_trans
);
267 pipe
->transfer_destroy(pipe
, dst_trans
);
271 * Fallback for pipe->clear_stencil() function.
272 * sw fallback doesn't look terribly useful here.
273 * Plus can't use these transfer fallbacks when clearing
274 * multisampled surfaces for instance.
277 util_clear_depth_stencil(struct pipe_context
*pipe
,
278 struct pipe_surface
*dst
,
279 unsigned clear_flags
,
282 unsigned dstx
, unsigned dsty
,
283 unsigned width
, unsigned height
)
285 struct pipe_transfer
*dst_trans
;
287 boolean need_rmw
= FALSE
;
289 if ((clear_flags
& PIPE_CLEAR_DEPTHSTENCIL
) &&
290 ((clear_flags
& PIPE_CLEAR_DEPTHSTENCIL
) != PIPE_CLEAR_DEPTHSTENCIL
) &&
291 util_format_is_depth_and_stencil(dst
->format
))
294 assert(dst
->texture
);
297 dst_trans
= pipe_get_transfer(pipe
,
300 dst
->u
.tex
.first_layer
,
301 (need_rmw
? PIPE_TRANSFER_READ_WRITE
:
302 PIPE_TRANSFER_WRITE
),
303 dstx
, dsty
, width
, height
);
305 dst_map
= pipe
->transfer_map(pipe
, dst_trans
);
310 unsigned dst_stride
= dst_trans
->stride
;
311 unsigned zstencil
= util_pack_z_stencil(dst
->texture
->format
, depth
, stencil
);
313 assert(dst_trans
->stride
> 0);
315 switch (util_format_get_blocksize(dst
->format
)) {
317 assert(dst
->format
== PIPE_FORMAT_S8_UINT
);
318 if(dst_stride
== width
)
319 memset(dst_map
, (ubyte
) zstencil
, height
* width
);
321 for (i
= 0; i
< height
; i
++) {
322 memset(dst_map
, (ubyte
) zstencil
, width
);
323 dst_map
+= dst_stride
;
328 assert(dst
->format
== PIPE_FORMAT_Z16_UNORM
);
329 for (i
= 0; i
< height
; i
++) {
330 uint16_t *row
= (uint16_t *)dst_map
;
331 for (j
= 0; j
< width
; j
++)
332 *row
++ = (uint16_t) zstencil
;
333 dst_map
+= dst_stride
;
338 for (i
= 0; i
< height
; i
++) {
339 uint32_t *row
= (uint32_t *)dst_map
;
340 for (j
= 0; j
< width
; j
++)
342 dst_map
+= dst_stride
;
347 if (dst
->format
== PIPE_FORMAT_Z24_UNORM_S8_UINT
)
348 dst_mask
= 0xffffff00;
350 assert(dst
->format
== PIPE_FORMAT_S8_UINT_Z24_UNORM
);
353 if (clear_flags
& PIPE_CLEAR_DEPTH
)
354 dst_mask
= ~dst_mask
;
355 for (i
= 0; i
< height
; i
++) {
356 uint32_t *row
= (uint32_t *)dst_map
;
357 for (j
= 0; j
< width
; j
++) {
358 uint32_t tmp
= *row
& dst_mask
;
359 *row
++ = tmp
| (zstencil
& ~dst_mask
);
361 dst_map
+= dst_stride
;
367 uint64_t zstencil
= util_pack64_z_stencil(dst
->texture
->format
,
370 assert(dst
->format
== PIPE_FORMAT_Z32_FLOAT_S8X24_UINT
);
373 for (i
= 0; i
< height
; i
++) {
374 uint64_t *row
= (uint64_t *)dst_map
;
375 for (j
= 0; j
< width
; j
++)
377 dst_map
+= dst_stride
;
383 if (clear_flags
& PIPE_CLEAR_DEPTH
)
384 src_mask
= 0x00000000ffffffffull
;
386 src_mask
= 0x000000ff00000000ull
;
388 for (i
= 0; i
< height
; i
++) {
389 uint64_t *row
= (uint64_t *)dst_map
;
390 for (j
= 0; j
< width
; j
++) {
391 uint64_t tmp
= *row
& ~src_mask
;
392 *row
++ = tmp
| (zstencil
& src_mask
);
394 dst_map
+= dst_stride
;
405 pipe
->transfer_unmap(pipe
, dst_trans
);
406 pipe
->transfer_destroy(pipe
, dst_trans
);