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"
47 DEBUG_GET_ONCE_BOOL_OPTION(swrast_no_present
, "SWRAST_NO_PRESENT", FALSE
);
48 static boolean swrast_no_present
= FALSE
;
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
);
97 if (swrast_no_present
)
100 screen
->base
.screen
->flush_frontbuffer(screen
->base
.screen
, ptex
, 0, 0, drawable
);
104 drisw_invalidate_drawable(__DRIdrawable
*dPriv
)
106 struct dri_drawable
*drawable
= dri_drawable(dPriv
);
108 drawable
->texture_stamp
= dPriv
->lastStamp
- 1;
110 p_atomic_inc(&drawable
->base
.stamp
);
114 drisw_copy_to_front(__DRIdrawable
* dPriv
,
115 struct pipe_resource
*ptex
)
117 drisw_present_texture(dPriv
, ptex
);
119 drisw_invalidate_drawable(dPriv
);
123 * Backend functions for st_framebuffer interface and swap_buffers.
127 drisw_swap_buffers(__DRIdrawable
*dPriv
)
129 struct dri_context
*ctx
= dri_get_current(dPriv
->driScreenPriv
);
130 struct dri_drawable
*drawable
= dri_drawable(dPriv
);
131 struct pipe_resource
*ptex
;
136 ptex
= drawable
->textures
[ST_ATTACHMENT_BACK_LEFT
];
139 ctx
->st
->flush(ctx
->st
, ST_FLUSH_FRONT
, NULL
);
141 drisw_copy_to_front(dPriv
, ptex
);
146 drisw_flush_frontbuffer(struct dri_drawable
*drawable
,
147 enum st_attachment_type statt
)
149 struct dri_context
*ctx
= dri_get_current(drawable
->sPriv
);
150 struct pipe_resource
*ptex
;
155 ptex
= drawable
->textures
[statt
];
158 drisw_copy_to_front(ctx
->dPriv
, ptex
);
163 * Allocate framebuffer attachments.
165 * During fixed-size operation, the function keeps allocating new attachments
166 * as they are requested. Unused attachments are not removed, not until the
167 * framebuffer is resized or destroyed.
170 drisw_allocate_textures(struct dri_drawable
*drawable
,
171 const enum st_attachment_type
*statts
,
174 struct dri_screen
*screen
= dri_screen(drawable
->sPriv
);
175 struct pipe_resource templ
;
176 unsigned width
, height
;
180 width
= drawable
->dPriv
->w
;
181 height
= drawable
->dPriv
->h
;
183 resized
= (drawable
->old_w
!= width
||
184 drawable
->old_h
!= height
);
186 /* remove outdated textures */
188 for (i
= 0; i
< ST_ATTACHMENT_COUNT
; i
++)
189 pipe_resource_reference(&drawable
->textures
[i
], NULL
);
192 memset(&templ
, 0, sizeof(templ
));
193 templ
.target
= screen
->target
;
194 templ
.width0
= width
;
195 templ
.height0
= height
;
197 templ
.array_size
= 1;
198 templ
.last_level
= 0;
200 for (i
= 0; i
< count
; i
++) {
201 enum pipe_format format
;
204 /* the texture already exists or not requested */
205 if (drawable
->textures
[statts
[i
]])
208 dri_drawable_get_format(drawable
, statts
[i
], &format
, &bind
);
210 /* if we don't do any present, no need for display targets */
211 if (statts
[i
] != ST_ATTACHMENT_DEPTH_STENCIL
&& !swrast_no_present
)
212 bind
|= PIPE_BIND_DISPLAY_TARGET
;
214 if (format
== PIPE_FORMAT_NONE
)
217 templ
.format
= format
;
220 drawable
->textures
[statts
[i
]] =
221 screen
->base
.screen
->resource_create(screen
->base
.screen
, &templ
);
224 drawable
->old_w
= width
;
225 drawable
->old_h
= height
;
229 * Backend function for init_screen.
232 static const __DRIextension
*drisw_screen_extensions
[] = {
233 &driTexBufferExtension
.base
,
237 static struct drisw_loader_funcs drisw_lf
= {
238 .put_image
= drisw_put_image
241 static const __DRIconfig
**
242 drisw_init_screen(__DRIscreen
* sPriv
)
244 const __DRIconfig
**configs
;
245 struct dri_screen
*screen
;
246 struct pipe_screen
*pscreen
;
248 screen
= CALLOC_STRUCT(dri_screen
);
252 screen
->sPriv
= sPriv
;
255 swrast_no_present
= debug_get_option_swrast_no_present();
257 sPriv
->private = (void *)screen
;
258 sPriv
->extensions
= drisw_screen_extensions
;
260 pscreen
= drisw_create_screen(&drisw_lf
);
261 /* dri_init_screen_helper checks pscreen for us */
263 configs
= dri_init_screen_helper(screen
, pscreen
, 32);
269 dri_destroy_screen_helper(screen
);
275 drisw_create_buffer(__DRIscreen
* sPriv
,
276 __DRIdrawable
* dPriv
,
277 const struct gl_config
* visual
, boolean isPixmap
)
279 struct dri_drawable
*drawable
= NULL
;
281 if (!dri_create_buffer(sPriv
, dPriv
, visual
, isPixmap
))
284 drawable
= dPriv
->driverPrivate
;
286 drawable
->allocate_textures
= drisw_allocate_textures
;
287 drawable
->update_drawable_info
= drisw_update_drawable_info
;
288 drawable
->flush_frontbuffer
= drisw_flush_frontbuffer
;
294 * DRI driver virtual function table.
296 * DRI versions differ in their implementation of init_screen and swap_buffers.
298 const struct __DriverAPIRec driDriverAPI
= {
299 .InitScreen
= drisw_init_screen
,
300 .DestroyScreen
= dri_destroy_screen
,
301 .CreateContext
= dri_create_context
,
302 .DestroyContext
= dri_destroy_context
,
303 .CreateBuffer
= drisw_create_buffer
,
304 .DestroyBuffer
= dri_destroy_buffer
,
305 .MakeCurrent
= dri_make_current
,
306 .UnbindContext
= dri_unbind_context
,
308 .SwapBuffers
= drisw_swap_buffers
,
311 /* This is the table of extensions that the loader will dlsym() for. */
312 PUBLIC
const __DRIextension
*__driDriverExtensions
[] = {
313 &driCoreExtension
.base
,
314 &driSWRastExtension
.base
,
318 /* vim: set sw=3 ts=8 sts=3 expandtab: */