1 /**************************************************************************
3 * Copyright 2009, VMware, Inc.
5 * Copyright 2010 George Sapountzis <gsapountzis@gmail.com>
7 * Permission is hereby granted, free of charge, to any person obtaining a
8 * copy of this software and associated documentation files (the
9 * "Software"), to deal in the Software without restriction, including
10 * without limitation the rights to use, copy, modify, merge, publish,
11 * distribute, sub license, and/or sell copies of the Software, and to
12 * permit persons to whom the Software is furnished to do so, subject to
13 * the following conditions:
15 * The above copyright notice and this permission notice (including the
16 * next paragraph) shall be included in all copies or substantial portions
19 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
20 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
21 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
22 * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
23 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
24 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
25 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
27 **************************************************************************/
31 * xshm / texture_from_pixmap / EGLImage:
33 * Allow the loaders to use the XSHM extension. It probably requires callbacks
34 * for createImage/destroyImage similar to DRI2 getBuffers.
37 #include "util/u_format.h"
38 #include "util/u_memory.h"
39 #include "util/u_inlines.h"
40 #include "pipe/p_context.h"
41 #include "state_tracker/drisw_api.h"
43 #include "dri_screen.h"
44 #include "dri_context.h"
45 #include "dri_drawable.h"
46 #include "dri1_helper.h"
51 get_drawable_info(__DRIdrawable
*dPriv
, int *w
, int *h
)
53 __DRIscreen
*sPriv
= dPriv
->driScreenPriv
;
54 const __DRIswrastLoaderExtension
*loader
= sPriv
->swrast_loader
;
57 loader
->getDrawableInfo(dPriv
,
59 dPriv
->loaderPrivate
);
63 put_image(__DRIdrawable
*dPriv
, void *data
, unsigned width
, unsigned height
)
65 __DRIscreen
*sPriv
= dPriv
->driScreenPriv
;
66 const __DRIswrastLoaderExtension
*loader
= sPriv
->swrast_loader
;
68 loader
->putImage(dPriv
, __DRI_SWRAST_IMAGE_OP_SWAP
,
70 data
, dPriv
->loaderPrivate
);
74 drisw_update_drawable_info(struct dri_drawable
*drawable
)
76 __DRIdrawable
*dPriv
= drawable
->dPriv
;
78 get_drawable_info(dPriv
, &dPriv
->w
, &dPriv
->h
);
82 drisw_put_image(struct dri_drawable
*drawable
,
83 void *data
, unsigned width
, unsigned height
)
85 __DRIdrawable
*dPriv
= drawable
->dPriv
;
87 put_image(dPriv
, data
, width
, height
);
91 drisw_present_texture(__DRIdrawable
*dPriv
,
92 struct pipe_resource
*ptex
)
94 struct dri_drawable
*drawable
= dri_drawable(dPriv
);
95 struct dri_screen
*screen
= dri_screen(drawable
->sPriv
);
96 struct pipe_surface
*psurf
;
98 psurf
= dri1_get_pipe_surface(drawable
, ptex
);
102 screen
->pipe_screen
->flush_frontbuffer(screen
->pipe_screen
, psurf
, drawable
);
106 drisw_invalidate_drawable(__DRIdrawable
*dPriv
)
108 struct dri_context
*ctx
= dri_get_current();
109 struct dri_drawable
*drawable
= dri_drawable(dPriv
);
111 drawable
->texture_stamp
= dPriv
->lastStamp
- 1;
113 /* check if swapping currently bound buffer */
114 if (ctx
&& ctx
->dPriv
== dPriv
)
115 ctx
->st
->notify_invalid_framebuffer(ctx
->st
, drawable
->stfb
);
119 drisw_copy_to_front(__DRIdrawable
* dPriv
,
120 struct pipe_resource
*ptex
)
122 drisw_present_texture(dPriv
, ptex
);
124 drisw_invalidate_drawable(dPriv
);
128 * Backend functions for st_framebuffer interface and swap_buffers.
132 drisw_swap_buffers(__DRIdrawable
*dPriv
)
134 struct dri_context
*ctx
= dri_get_current();
135 struct dri_drawable
*drawable
= dri_drawable(dPriv
);
136 struct pipe_resource
*ptex
;
141 ptex
= drawable
->textures
[ST_ATTACHMENT_BACK_LEFT
];
144 ctx
->st
->flush(ctx
->st
, PIPE_FLUSH_RENDER_CACHE
, NULL
);
146 drisw_copy_to_front(dPriv
, ptex
);
151 drisw_flush_frontbuffer(struct dri_drawable
*drawable
,
152 enum st_attachment_type statt
)
154 struct dri_context
*ctx
= dri_get_current();
155 struct pipe_resource
*ptex
;
160 ptex
= drawable
->textures
[statt
];
163 drisw_copy_to_front(ctx
->dPriv
, ptex
);
168 * Allocate framebuffer attachments.
170 * During fixed-size operation, the function keeps allocating new attachments
171 * as they are requested. Unused attachments are not removed, not until the
172 * framebuffer is resized or destroyed.
174 * It should be possible for DRI1 and DRISW to share this function, but it
175 * seems a better seperation and safer for each DRI version to provide its own
179 drisw_allocate_textures(struct dri_drawable
*drawable
,
182 struct dri_screen
*screen
= dri_screen(drawable
->sPriv
);
183 struct pipe_resource templ
;
184 unsigned width
, height
;
188 width
= drawable
->dPriv
->w
;
189 height
= drawable
->dPriv
->h
;
191 resized
= (drawable
->old_w
!= width
||
192 drawable
->old_h
!= height
);
194 /* remove outdated textures */
196 for (i
= 0; i
< ST_ATTACHMENT_COUNT
; i
++)
197 pipe_resource_reference(&drawable
->textures
[i
], NULL
);
200 memset(&templ
, 0, sizeof(templ
));
201 templ
.target
= PIPE_TEXTURE_2D
;
202 templ
.width0
= width
;
203 templ
.height0
= height
;
205 templ
.last_level
= 0;
207 for (i
= 0; i
< ST_ATTACHMENT_COUNT
; i
++) {
208 enum pipe_format format
;
211 /* the texture already exists or not requested */
212 if (drawable
->textures
[i
] || !(mask
& (1 << i
))) {
217 case ST_ATTACHMENT_FRONT_LEFT
:
218 case ST_ATTACHMENT_BACK_LEFT
:
219 case ST_ATTACHMENT_FRONT_RIGHT
:
220 case ST_ATTACHMENT_BACK_RIGHT
:
221 format
= drawable
->stvis
.color_format
;
222 tex_usage
= PIPE_BIND_DISPLAY_TARGET
|
223 PIPE_BIND_RENDER_TARGET
;
225 case ST_ATTACHMENT_DEPTH_STENCIL
:
226 format
= drawable
->stvis
.depth_stencil_format
;
227 tex_usage
= PIPE_BIND_DEPTH_STENCIL
;
230 format
= PIPE_FORMAT_NONE
;
234 if (format
!= PIPE_FORMAT_NONE
) {
235 templ
.format
= format
;
236 templ
.bind
= tex_usage
;
238 drawable
->textures
[i
] =
239 screen
->pipe_screen
->resource_create(screen
->pipe_screen
, &templ
);
243 drawable
->old_w
= width
;
244 drawable
->old_h
= height
;
248 * Backend function for init_screen.
251 static const __DRIextension
*drisw_screen_extensions
[] = {
255 static struct drisw_loader_funcs drisw_lf
= {
256 .put_image
= drisw_put_image
260 drisw_init_screen(__DRIscreen
* sPriv
)
262 const __DRIconfig
**configs
;
263 struct dri_screen
*screen
;
264 struct pipe_screen
*pscreen
;
266 screen
= CALLOC_STRUCT(dri_screen
);
270 screen
->api
= NULL
; /* not needed */
271 screen
->sPriv
= sPriv
;
274 sPriv
->private = (void *)screen
;
275 sPriv
->extensions
= drisw_screen_extensions
;
277 pscreen
= drisw_create_screen(&drisw_lf
);
278 /* dri_init_screen_helper checks pscreen for us */
280 configs
= dri_init_screen_helper(screen
, pscreen
, 32);
286 dri_destroy_screen_helper(screen
);
291 /* This is the table of extensions that the loader will dlsym() for. */
292 PUBLIC
const __DRIextension
*__driDriverExtensions
[] = {
293 &driCoreExtension
.base
,
294 &driSWRastExtension
.base
,
298 /* vim: set sw=3 ts=8 sts=3 expandtab: */