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 **************************************************************************/
29 #include "util/u_format.h"
30 #include "util/u_memory.h"
31 #include "util/u_inlines.h"
32 #include "util/u_box.h"
33 #include "pipe/p_context.h"
34 #include "pipe-loader/pipe_loader.h"
35 #include "state_tracker/drisw_api.h"
36 #include "state_tracker/st_context.h"
38 #include "dri_screen.h"
39 #include "dri_context.h"
40 #include "dri_drawable.h"
41 #include "dri_helpers.h"
42 #include "dri_query_renderer.h"
44 DEBUG_GET_ONCE_BOOL_OPTION(swrast_no_present
, "SWRAST_NO_PRESENT", FALSE
);
45 static boolean swrast_no_present
= FALSE
;
48 get_drawable_info(__DRIdrawable
*dPriv
, int *x
, int *y
, int *w
, int *h
)
50 __DRIscreen
*sPriv
= dPriv
->driScreenPriv
;
51 const __DRIswrastLoaderExtension
*loader
= sPriv
->swrast_loader
;
53 loader
->getDrawableInfo(dPriv
,
55 dPriv
->loaderPrivate
);
59 put_image(__DRIdrawable
*dPriv
, void *data
, unsigned width
, unsigned height
)
61 __DRIscreen
*sPriv
= dPriv
->driScreenPriv
;
62 const __DRIswrastLoaderExtension
*loader
= sPriv
->swrast_loader
;
64 loader
->putImage(dPriv
, __DRI_SWRAST_IMAGE_OP_SWAP
,
66 data
, dPriv
->loaderPrivate
);
70 put_image2(__DRIdrawable
*dPriv
, void *data
, int x
, int y
,
71 unsigned width
, unsigned height
, unsigned stride
)
73 __DRIscreen
*sPriv
= dPriv
->driScreenPriv
;
74 const __DRIswrastLoaderExtension
*loader
= sPriv
->swrast_loader
;
76 loader
->putImage2(dPriv
, __DRI_SWRAST_IMAGE_OP_SWAP
,
77 x
, y
, width
, height
, stride
,
78 data
, dPriv
->loaderPrivate
);
82 put_image_shm(__DRIdrawable
*dPriv
, int shmid
, char *shmaddr
,
83 unsigned offset
, int x
, int y
,
84 unsigned width
, unsigned height
, unsigned stride
)
86 __DRIscreen
*sPriv
= dPriv
->driScreenPriv
;
87 const __DRIswrastLoaderExtension
*loader
= sPriv
->swrast_loader
;
89 loader
->putImageShm(dPriv
, __DRI_SWRAST_IMAGE_OP_SWAP
,
90 x
, y
, width
, height
, stride
,
91 shmid
, shmaddr
, offset
, dPriv
->loaderPrivate
);
95 get_image(__DRIdrawable
*dPriv
, int x
, int y
, int width
, int height
, void *data
)
97 __DRIscreen
*sPriv
= dPriv
->driScreenPriv
;
98 const __DRIswrastLoaderExtension
*loader
= sPriv
->swrast_loader
;
100 loader
->getImage(dPriv
,
102 data
, dPriv
->loaderPrivate
);
106 get_image2(__DRIdrawable
*dPriv
, int x
, int y
, int width
, int height
, int stride
, void *data
)
108 __DRIscreen
*sPriv
= dPriv
->driScreenPriv
;
109 const __DRIswrastLoaderExtension
*loader
= sPriv
->swrast_loader
;
111 /* getImage2 support is only in version 3 or newer */
112 if (loader
->base
.version
< 3)
115 loader
->getImage2(dPriv
,
116 x
, y
, width
, height
, stride
,
117 data
, dPriv
->loaderPrivate
);
121 get_image_shm(__DRIdrawable
*dPriv
, int x
, int y
, int width
, int height
,
122 struct pipe_resource
*res
)
124 __DRIscreen
*sPriv
= dPriv
->driScreenPriv
;
125 const __DRIswrastLoaderExtension
*loader
= sPriv
->swrast_loader
;
126 struct winsys_handle whandle
;
128 whandle
.type
= WINSYS_HANDLE_TYPE_SHMID
;
130 if (loader
->base
.version
< 4 || !loader
->getImageShm
)
133 if (!res
->screen
->resource_get_handle(res
->screen
, NULL
, res
, &whandle
, PIPE_HANDLE_USAGE_WRITE
))
136 loader
->getImageShm(dPriv
, x
, y
, width
, height
, whandle
.handle
, dPriv
->loaderPrivate
);
141 drisw_update_drawable_info(struct dri_drawable
*drawable
)
143 __DRIdrawable
*dPriv
= drawable
->dPriv
;
146 get_drawable_info(dPriv
, &x
, &y
, &dPriv
->w
, &dPriv
->h
);
150 drisw_get_image(struct dri_drawable
*drawable
,
151 int x
, int y
, unsigned width
, unsigned height
, unsigned stride
,
154 __DRIdrawable
*dPriv
= drawable
->dPriv
;
155 int draw_x
, draw_y
, draw_w
, draw_h
;
157 get_drawable_info(dPriv
, &draw_x
, &draw_y
, &draw_w
, &draw_h
);
158 get_image2(dPriv
, x
, y
, draw_w
, draw_h
, stride
, data
);
162 drisw_put_image(struct dri_drawable
*drawable
,
163 void *data
, unsigned width
, unsigned height
)
165 __DRIdrawable
*dPriv
= drawable
->dPriv
;
167 put_image(dPriv
, data
, width
, height
);
171 drisw_put_image2(struct dri_drawable
*drawable
,
172 void *data
, int x
, int y
, unsigned width
, unsigned height
,
175 __DRIdrawable
*dPriv
= drawable
->dPriv
;
177 put_image2(dPriv
, data
, x
, y
, width
, height
, stride
);
181 drisw_put_image_shm(struct dri_drawable
*drawable
,
182 int shmid
, char *shmaddr
, unsigned offset
,
183 int x
, int y
, unsigned width
, unsigned height
,
186 __DRIdrawable
*dPriv
= drawable
->dPriv
;
188 put_image_shm(dPriv
, shmid
, shmaddr
, offset
, x
, y
, width
, height
, stride
);
192 drisw_present_texture(__DRIdrawable
*dPriv
,
193 struct pipe_resource
*ptex
, struct pipe_box
*sub_box
)
195 struct dri_drawable
*drawable
= dri_drawable(dPriv
);
196 struct dri_screen
*screen
= dri_screen(drawable
->sPriv
);
198 if (swrast_no_present
)
201 screen
->base
.screen
->flush_frontbuffer(screen
->base
.screen
, ptex
, 0, 0, drawable
, sub_box
);
205 drisw_invalidate_drawable(__DRIdrawable
*dPriv
)
207 struct dri_drawable
*drawable
= dri_drawable(dPriv
);
209 drawable
->texture_stamp
= dPriv
->lastStamp
- 1;
211 p_atomic_inc(&drawable
->base
.stamp
);
215 drisw_copy_to_front(__DRIdrawable
* dPriv
,
216 struct pipe_resource
*ptex
)
218 drisw_present_texture(dPriv
, ptex
, NULL
);
220 drisw_invalidate_drawable(dPriv
);
224 * Backend functions for st_framebuffer interface and swap_buffers.
228 drisw_swap_buffers(__DRIdrawable
*dPriv
)
230 struct dri_context
*ctx
= dri_get_current(dPriv
->driScreenPriv
);
231 struct dri_drawable
*drawable
= dri_drawable(dPriv
);
232 struct pipe_resource
*ptex
;
237 ptex
= drawable
->textures
[ST_ATTACHMENT_BACK_LEFT
];
241 pp_run(ctx
->pp
, ptex
, ptex
, drawable
->textures
[ST_ATTACHMENT_DEPTH_STENCIL
]);
243 ctx
->st
->flush(ctx
->st
, ST_FLUSH_FRONT
, NULL
);
245 drisw_copy_to_front(dPriv
, ptex
);
250 drisw_copy_sub_buffer(__DRIdrawable
*dPriv
, int x
, int y
,
253 struct dri_context
*ctx
= dri_get_current(dPriv
->driScreenPriv
);
254 struct dri_drawable
*drawable
= dri_drawable(dPriv
);
255 struct pipe_resource
*ptex
;
260 ptex
= drawable
->textures
[ST_ATTACHMENT_BACK_LEFT
];
263 if (ctx
->pp
&& drawable
->textures
[ST_ATTACHMENT_DEPTH_STENCIL
])
264 pp_run(ctx
->pp
, ptex
, ptex
, drawable
->textures
[ST_ATTACHMENT_DEPTH_STENCIL
]);
266 ctx
->st
->flush(ctx
->st
, ST_FLUSH_FRONT
, NULL
);
268 u_box_2d(x
, dPriv
->h
- y
- h
, w
, h
, &box
);
269 drisw_present_texture(dPriv
, ptex
, &box
);
274 drisw_flush_frontbuffer(struct dri_context
*ctx
,
275 struct dri_drawable
*drawable
,
276 enum st_attachment_type statt
)
278 struct pipe_resource
*ptex
;
283 ptex
= drawable
->textures
[statt
];
286 drisw_copy_to_front(ctx
->dPriv
, ptex
);
291 * Allocate framebuffer attachments.
293 * During fixed-size operation, the function keeps allocating new attachments
294 * as they are requested. Unused attachments are not removed, not until the
295 * framebuffer is resized or destroyed.
298 drisw_allocate_textures(struct dri_context
*stctx
,
299 struct dri_drawable
*drawable
,
300 const enum st_attachment_type
*statts
,
303 struct dri_screen
*screen
= dri_screen(drawable
->sPriv
);
304 const __DRIswrastLoaderExtension
*loader
= drawable
->dPriv
->driScreenPriv
->swrast_loader
;
305 struct pipe_resource templ
;
306 unsigned width
, height
;
310 width
= drawable
->dPriv
->w
;
311 height
= drawable
->dPriv
->h
;
313 resized
= (drawable
->old_w
!= width
||
314 drawable
->old_h
!= height
);
316 /* remove outdated textures */
318 for (i
= 0; i
< ST_ATTACHMENT_COUNT
; i
++)
319 pipe_resource_reference(&drawable
->textures
[i
], NULL
);
322 memset(&templ
, 0, sizeof(templ
));
323 templ
.target
= screen
->target
;
324 templ
.width0
= width
;
325 templ
.height0
= height
;
327 templ
.array_size
= 1;
328 templ
.last_level
= 0;
330 for (i
= 0; i
< count
; i
++) {
331 enum pipe_format format
;
334 /* the texture already exists or not requested */
335 if (drawable
->textures
[statts
[i
]])
338 dri_drawable_get_format(drawable
, statts
[i
], &format
, &bind
);
340 /* if we don't do any present, no need for display targets */
341 if (statts
[i
] != ST_ATTACHMENT_DEPTH_STENCIL
&& !swrast_no_present
)
342 bind
|= PIPE_BIND_DISPLAY_TARGET
;
344 if (format
== PIPE_FORMAT_NONE
)
347 templ
.format
= format
;
350 if (statts
[i
] == ST_ATTACHMENT_FRONT_LEFT
&&
351 screen
->base
.screen
->resource_create_front
&&
352 loader
->base
.version
>= 3) {
353 drawable
->textures
[statts
[i
]] =
354 screen
->base
.screen
->resource_create_front(screen
->base
.screen
, &templ
, (const void *)drawable
);
356 drawable
->textures
[statts
[i
]] =
357 screen
->base
.screen
->resource_create(screen
->base
.screen
, &templ
);
360 drawable
->old_w
= width
;
361 drawable
->old_h
= height
;
365 drisw_update_tex_buffer(struct dri_drawable
*drawable
,
366 struct dri_context
*ctx
,
367 struct pipe_resource
*res
)
369 __DRIdrawable
*dPriv
= drawable
->dPriv
;
371 struct st_context
*st_ctx
= (struct st_context
*)ctx
->st
;
372 struct pipe_context
*pipe
= st_ctx
->pipe
;
373 struct pipe_transfer
*transfer
;
376 int ximage_stride
, line
;
377 int cpp
= util_format_get_blocksize(res
->format
);
379 get_drawable_info(dPriv
, &x
, &y
, &w
, &h
);
381 map
= pipe_transfer_map(pipe
, res
,
382 0, 0, // level, layer,
384 x
, y
, w
, h
, &transfer
);
386 /* Copy the Drawable content to the mapped texture buffer */
387 if (!get_image_shm(dPriv
, x
, y
, w
, h
, res
))
388 get_image(dPriv
, x
, y
, w
, h
, map
);
390 /* The pipe transfer has a pitch rounded up to the nearest 64 pixels.
391 get_image() has a pitch rounded up to 4 bytes. */
392 ximage_stride
= ((w
* cpp
) + 3) & -4;
393 for (line
= h
-1; line
; --line
) {
394 memmove(&map
[line
* transfer
->stride
],
395 &map
[line
* ximage_stride
],
399 pipe_transfer_unmap(pipe
, transfer
);
402 static __DRIimageExtension driSWImageExtension
= {
403 .base
= { __DRI_IMAGE
, 6 },
405 .createImageFromRenderbuffer
= dri2_create_image_from_renderbuffer
,
406 .createImageFromTexture
= dri2_create_from_texture
,
407 .destroyImage
= dri2_destroy_image
,
411 * Backend function for init_screen.
414 static const __DRIextension
*drisw_screen_extensions
[] = {
415 &driTexBufferExtension
.base
,
416 &dri2RendererQueryExtension
.base
,
417 &dri2ConfigQueryExtension
.base
,
418 &dri2FenceExtension
.base
,
419 &dri2NoErrorExtension
.base
,
420 &driSWImageExtension
.base
,
421 &dri2FlushControlExtension
.base
,
425 static struct drisw_loader_funcs drisw_lf
= {
426 .get_image
= drisw_get_image
,
427 .put_image
= drisw_put_image
,
428 .put_image2
= drisw_put_image2
431 static const __DRIconfig
**
432 drisw_init_screen(__DRIscreen
* sPriv
)
434 const __DRIswrastLoaderExtension
*loader
= sPriv
->swrast_loader
;
435 const __DRIconfig
**configs
;
436 struct dri_screen
*screen
;
437 struct pipe_screen
*pscreen
= NULL
;
439 screen
= CALLOC_STRUCT(dri_screen
);
443 screen
->sPriv
= sPriv
;
446 swrast_no_present
= debug_get_option_swrast_no_present();
448 sPriv
->driverPrivate
= (void *)screen
;
449 sPriv
->extensions
= drisw_screen_extensions
;
450 if (loader
->base
.version
>= 4) {
451 if (loader
->putImageShm
)
452 drisw_lf
.put_image_shm
= drisw_put_image_shm
;
455 if (pipe_loader_sw_probe_dri(&screen
->dev
, &drisw_lf
)) {
456 dri_init_options(screen
);
458 pscreen
= pipe_loader_create_screen(screen
->dev
);
464 configs
= dri_init_screen_helper(screen
, pscreen
);
468 screen
->lookup_egl_image
= dri2_lookup_egl_image
;
472 dri_destroy_screen_helper(screen
);
474 pipe_loader_release(&screen
->dev
, 1);
480 drisw_create_buffer(__DRIscreen
* sPriv
,
481 __DRIdrawable
* dPriv
,
482 const struct gl_config
* visual
, boolean isPixmap
)
484 struct dri_drawable
*drawable
= NULL
;
486 if (!dri_create_buffer(sPriv
, dPriv
, visual
, isPixmap
))
489 drawable
= dPriv
->driverPrivate
;
491 drawable
->allocate_textures
= drisw_allocate_textures
;
492 drawable
->update_drawable_info
= drisw_update_drawable_info
;
493 drawable
->flush_frontbuffer
= drisw_flush_frontbuffer
;
494 drawable
->update_tex_buffer
= drisw_update_tex_buffer
;
500 * DRI driver virtual function table.
502 * DRI versions differ in their implementation of init_screen and swap_buffers.
504 const struct __DriverAPIRec galliumsw_driver_api
= {
505 .InitScreen
= drisw_init_screen
,
506 .DestroyScreen
= dri_destroy_screen
,
507 .CreateContext
= dri_create_context
,
508 .DestroyContext
= dri_destroy_context
,
509 .CreateBuffer
= drisw_create_buffer
,
510 .DestroyBuffer
= dri_destroy_buffer
,
511 .SwapBuffers
= drisw_swap_buffers
,
512 .MakeCurrent
= dri_make_current
,
513 .UnbindContext
= dri_unbind_context
,
514 .CopySubBuffer
= drisw_copy_sub_buffer
,
517 /* This is the table of extensions that the loader will dlsym() for. */
518 const __DRIextension
*galliumsw_driver_extensions
[] = {
519 &driCoreExtension
.base
,
520 &driSWRastExtension
.base
,
521 &driCopySubBufferExtension
.base
,
522 &gallium_config_options
.base
,
526 /* vim: set sw=3 ts=8 sts=3 expandtab: */