xa_tracker.c revision 866f9b18c68ede63c00917ec9c3dae3524ca8826 
1/**********************************************************
2 * Copyright 2009-2011 VMware, Inc. All rights reserved.
3 *
4 * Permission is hereby granted, free of charge, to any person
5 * obtaining a copy of this software and associated documentation
6 * files (the "Software"), to deal in the Software without
7 * restriction, including without limitation the rights to use, copy,
8 * modify, merge, publish, distribute, sublicense, and/or sell copies
9 * of the Software, and to permit persons to whom the Software is
10 * furnished to do so, subject to the following conditions:
11 *
12 * The above copyright notice and this permission notice shall be
13 * included in all copies or substantial portions of the Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
16 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
17 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
18 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
19 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
20 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
21 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
22 * SOFTWARE.
23 *
24 *********************************************************
25 * Authors:
26 * Thomas Hellstrom <thellstrom-at-vmware-dot-com>
27 */
28
29#include "xa_tracker.h"
30#include "xa_priv.h"
31#include "pipe/p_state.h"
32#include "pipe/p_format.h"
33#include "state_tracker/drm_driver.h"
34#include "util/u_inlines.h"
35
36/*
37 * format_map [xa_surface_type][first..last in list].
38 * Needs to be updated when enum xa_formats is updated.
39 */
40
41static const enum xa_formats preferred_a[] = { xa_format_a8 };
42
43static const enum xa_formats preferred_argb[] =
44    { xa_format_a8r8g8b8, xa_format_x8r8g8b8, xa_format_r5g6b5,
45    xa_format_x1r5g5b5
46};
47static const enum xa_formats preferred_z[] =
48    { xa_format_z32, xa_format_z24, xa_format_z16 };
49static const enum xa_formats preferred_sz[] =
50    { xa_format_x8z24, xa_format_s8z24 };
51static const enum xa_formats preferred_zs[] =
52    { xa_format_z24x8, xa_format_z24s8 };
53static const enum xa_formats preferred_yuv[] = { xa_format_yuv8 };
54
55static const enum xa_formats *preferred[] =
56    { NULL, preferred_a, preferred_argb, NULL, NULL,
57    preferred_z, preferred_zs, preferred_sz, preferred_yuv
58};
59
60static const unsigned int num_preferred[] = { 0,
61    sizeof(preferred_a) / sizeof(enum xa_formats),
62    sizeof(preferred_argb) / sizeof(enum xa_formats),
63    0,
64    0,
65    sizeof(preferred_z) / sizeof(enum xa_formats),
66    sizeof(preferred_zs) / sizeof(enum xa_formats),
67    sizeof(preferred_sz) / sizeof(enum xa_formats),
68    sizeof(preferred_yuv) / sizeof(enum xa_formats)
69};
70
71static const unsigned int stype_bind[XA_LAST_SURFACE_TYPE] = { 0,
72    PIPE_BIND_SAMPLER_VIEW,
73    PIPE_BIND_SAMPLER_VIEW,
74    PIPE_BIND_SAMPLER_VIEW,
75    PIPE_BIND_SAMPLER_VIEW,
76    PIPE_BIND_DEPTH_STENCIL,
77    PIPE_BIND_DEPTH_STENCIL,
78    PIPE_BIND_DEPTH_STENCIL,
79    PIPE_BIND_SAMPLER_VIEW
80};
81
82static struct xa_format_descriptor
83xa_get_pipe_format(enum xa_formats xa_format)
84{
85    struct xa_format_descriptor fdesc;
86
87    fdesc.xa_format = xa_format;
88
89    switch (xa_format) {
90    case xa_format_a8r8g8b8:
91	fdesc.format = PIPE_FORMAT_B8G8R8A8_UNORM;
92	break;
93    case xa_format_x8r8g8b8:
94	fdesc.format = PIPE_FORMAT_B8G8R8X8_UNORM;
95	break;
96    case xa_format_r5g6b5:
97	fdesc.format = PIPE_FORMAT_B5G6R5_UNORM;
98	break;
99    case xa_format_x1r5g5b5:
100	fdesc.format = PIPE_FORMAT_B5G5R5A1_UNORM;
101	break;
102    case xa_format_a8:
103	fdesc.format = PIPE_FORMAT_L8_UNORM;
104	break;
105    case xa_format_z24:
106	fdesc.format = PIPE_FORMAT_Z24X8_UNORM;
107	break;
108    case xa_format_z16:
109	fdesc.format = PIPE_FORMAT_Z16_UNORM;
110	break;
111    case xa_format_z32:
112	fdesc.format = PIPE_FORMAT_Z32_UNORM;
113	break;
114    case xa_format_x8z24:
115	fdesc.format = PIPE_FORMAT_Z24X8_UNORM;
116	break;
117    case xa_format_z24x8:
118	fdesc.format = PIPE_FORMAT_X8Z24_UNORM;
119	break;
120    case xa_format_s8z24:
121	fdesc.format = PIPE_FORMAT_Z24_UNORM_S8_UINT;
122	break;
123    case xa_format_z24s8:
124	fdesc.format = PIPE_FORMAT_S8_UINT_Z24_UNORM;
125	break;
126    case xa_format_yuv8:
127	fdesc.format = PIPE_FORMAT_L8_UNORM;
128	break;
129    default:
130	fdesc.xa_format = xa_format_unknown;
131	break;
132    }
133    return fdesc;
134}
135
136struct xa_tracker *
137xa_tracker_create(int drm_fd)
138{
139    struct xa_tracker *xa = calloc(1, sizeof(struct xa_tracker));
140    enum xa_surface_type stype;
141    unsigned int num_formats;
142
143    if (!xa)
144	return NULL;
145
146    xa->screen = driver_descriptor.create_screen(drm_fd);
147    if (!xa->screen)
148	goto out_no_screen;
149
150    xa->default_ctx = xa_context_create(xa);
151    if (!xa->default_ctx)
152	goto out_no_pipe;
153
154    num_formats = 0;
155    for (stype = 0; stype < XA_LAST_SURFACE_TYPE; ++stype)
156	num_formats += num_preferred[stype];
157
158    num_formats += 1;
159    xa->supported_formats = calloc(num_formats, sizeof(*xa->supported_formats));
160    if (!xa->supported_formats)
161	goto out_sf_alloc_fail;
162
163    xa->supported_formats[0] = xa_format_unknown;
164    num_formats = 1;
165    memset(xa->format_map, 0, sizeof(xa->format_map));
166
167    for (stype = 0; stype < XA_LAST_SURFACE_TYPE; ++stype) {
168	unsigned int bind = stype_bind[stype];
169	enum xa_formats xa_format;
170	int i;
171
172	for (i = 0; i < num_preferred[stype]; ++i) {
173	    xa_format = preferred[stype][i];
174
175	    struct xa_format_descriptor fdesc = xa_get_pipe_format(xa_format);
176
177	    if (xa->screen->is_format_supported(xa->screen, fdesc.format,
178						PIPE_TEXTURE_2D, 0, bind)) {
179		if (xa->format_map[stype][0] == 0)
180		    xa->format_map[stype][0] = num_formats;
181		xa->format_map[stype][1] = num_formats;
182		xa->supported_formats[num_formats++] = xa_format;
183	    }
184	}
185    }
186    return xa;
187
188 out_sf_alloc_fail:
189    xa_context_destroy(xa->default_ctx);
190 out_no_pipe:
191    xa->screen->destroy(xa->screen);
192 out_no_screen:
193    free(xa);
194    return NULL;
195}
196
197void
198xa_tracker_destroy(struct xa_tracker *xa)
199{
200    free(xa->supported_formats);
201    xa_context_destroy(xa->default_ctx);
202    xa->screen->destroy(xa->screen);
203    free(xa);
204}
205
206static int
207xa_flags_compat(unsigned int old_flags, unsigned int new_flags)
208{
209    unsigned int flag_diff = (old_flags ^ new_flags);
210
211    if (flag_diff == 0)
212	return 1;
213
214    if (flag_diff & XA_FLAG_SHARED)
215	return 0;
216    /*
217     * Don't recreate if we're dropping the render target flag.
218     */
219    if (flag_diff & XA_FLAG_RENDER_TARGET)
220	return ((new_flags & XA_FLAG_RENDER_TARGET) == 0);
221
222    /*
223     * Always recreate for unknown / unimplemented flags.
224     */
225    return 0;
226}
227
228static struct xa_format_descriptor
229xa_get_format_stype_depth(struct xa_tracker *xa,
230			  enum xa_surface_type stype, unsigned int depth)
231{
232    unsigned int i;
233    struct xa_format_descriptor fdesc;
234    int found = 0;
235
236    for (i = xa->format_map[stype][0]; i <= xa->format_map[stype][1]; ++i) {
237	fdesc = xa_get_pipe_format(xa->supported_formats[i]);
238	if (fdesc.xa_format != xa_format_unknown &&
239	    xa_format_depth(fdesc.xa_format) == depth) {
240	    found = 1;
241	    break;
242	}
243    }
244
245    if (!found)
246	fdesc.xa_format = xa_format_unknown;
247
248    return fdesc;
249}
250
251int
252xa_format_check_supported(struct xa_tracker *xa,
253			  enum xa_formats xa_format, unsigned int flags)
254{
255    struct xa_format_descriptor fdesc = xa_get_pipe_format(xa_format);
256    unsigned int bind;
257
258    if (fdesc.xa_format == xa_format_unknown)
259	return -XA_ERR_INVAL;
260
261    bind = stype_bind[xa_format_type(fdesc.xa_format)];
262    if (flags & XA_FLAG_SHARED)
263	bind |= PIPE_BIND_SHARED;
264    if (flags & XA_FLAG_RENDER_TARGET)
265	bind |= PIPE_BIND_RENDER_TARGET;
266
267    if (!xa->screen->is_format_supported(xa->screen, fdesc.format,
268					 PIPE_TEXTURE_2D, 0, bind))
269	return -XA_ERR_INVAL;
270
271    return XA_ERR_NONE;
272}
273
274struct xa_surface *
275xa_surface_create(struct xa_tracker *xa,
276		  int width,
277		  int height,
278		  int depth,
279		  enum xa_surface_type stype,
280		  enum xa_formats xa_format, unsigned int flags)
281{
282    struct pipe_resource *template;
283    struct xa_surface *srf;
284    struct xa_format_descriptor fdesc;
285
286    if (xa_format == xa_format_unknown)
287	fdesc = xa_get_format_stype_depth(xa, stype, depth);
288    else
289	fdesc = xa_get_pipe_format(xa_format);
290
291    if (fdesc.xa_format == xa_format_unknown)
292	return NULL;
293
294    srf = calloc(1, sizeof(*srf));
295    if (!srf)
296	return NULL;
297
298    template = &srf->template;
299    template->format = fdesc.format;
300    template->target = PIPE_TEXTURE_2D;
301    template->width0 = width;
302    template->height0 = height;
303    template->depth0 = 1;
304    template->array_size = 1;
305    template->last_level = 0;
306    template->bind = stype_bind[xa_format_type(fdesc.xa_format)];
307
308    if (flags & XA_FLAG_SHARED)
309	template->bind |= PIPE_BIND_SHARED;
310    if (flags & XA_FLAG_RENDER_TARGET)
311	template->bind |= PIPE_BIND_RENDER_TARGET;
312
313    srf->tex = xa->screen->resource_create(xa->screen, template);
314    if (!srf->tex)
315	goto out_no_tex;
316
317    srf->xa = xa;
318    srf->flags = flags;
319    srf->fdesc = fdesc;
320
321    return srf;
322 out_no_tex:
323    free(srf);
324    return NULL;
325}
326
327int
328xa_surface_redefine(struct xa_surface *srf,
329		    int width,
330		    int height,
331		    int depth,
332		    enum xa_surface_type stype,
333		    enum xa_formats xa_format,
334		    unsigned int new_flags,
335		    int copy_contents)
336{
337    struct pipe_resource *template = &srf->template;
338    struct pipe_resource *texture;
339    struct pipe_box src_box;
340    struct xa_tracker *xa = srf->xa;
341    int save_width;
342    int save_height;
343    unsigned int save_format;
344    struct xa_format_descriptor fdesc;
345
346
347    if (xa_format == xa_format_unknown)
348	fdesc = xa_get_format_stype_depth(xa, stype, depth);
349    else
350	fdesc = xa_get_pipe_format(xa_format);
351
352    if (width == template->width0 && height == template->height0 &&
353	template->format == fdesc.format &&
354	xa_flags_compat(srf->flags, new_flags))
355	return XA_ERR_NONE;
356
357    template->bind = stype_bind[xa_format_type(fdesc.xa_format)];
358    if (new_flags & XA_FLAG_SHARED)
359	template->bind |= PIPE_BIND_SHARED;
360    if (new_flags & XA_FLAG_RENDER_TARGET)
361	template->bind |= PIPE_BIND_RENDER_TARGET;
362
363    if (copy_contents) {
364	if (!xa_format_type_is_color(fdesc.xa_format) ||
365	    xa_format_type(fdesc.xa_format) == xa_type_a)
366	    return -XA_ERR_INVAL;
367
368	if (!xa->screen->is_format_supported(xa->screen, fdesc.format,
369					     PIPE_TEXTURE_2D, 0,
370					     template->bind |
371					     PIPE_BIND_RENDER_TARGET))
372	    return -XA_ERR_INVAL;
373    }
374
375    save_width = template->width0;
376    save_height = template->height0;
377    save_format = template->format;
378
379    template->width0 = width;
380    template->height0 = height;
381    template->format = fdesc.format;
382
383    texture = xa->screen->resource_create(xa->screen, template);
384    if (!texture) {
385	template->width0 = save_width;
386	template->height0 = save_height;
387	template->format = save_format;
388	return -XA_ERR_NORES;
389    }
390
391    if (copy_contents) {
392	struct pipe_context *pipe = xa->default_ctx->pipe;
393
394	u_box_origin_2d(xa_min(save_width, template->width0),
395			xa_min(save_height, template->height0), &src_box);
396	pipe->resource_copy_region(pipe, texture,
397				   0, 0, 0, 0, srf->tex, 0, &src_box);
398	pipe->flush(pipe, &xa->default_ctx->last_fence);
399    }
400
401    pipe_resource_reference(&srf->tex, texture);
402    pipe_resource_reference(&texture, NULL);
403    srf->fdesc = fdesc;
404    srf->flags = new_flags;
405
406    return XA_ERR_NONE;
407}
408
409void
410xa_surface_destroy(struct xa_surface *srf)
411{
412    pipe_resource_reference(&srf->tex, NULL);
413    free(srf);
414}
415
416extern void
417xa_tracker_version(int *major, int *minor, int *patch)
418{
419    *major = XA_TRACKER_VERSION_MAJOR;
420    *minor = XA_TRACKER_VERSION_MINOR;
421    *patch = XA_TRACKER_VERSION_PATCH;
422}
423
424extern int
425xa_surface_handle(struct xa_surface *srf,
426		  uint32_t * handle, unsigned int *stride)
427{
428    struct winsys_handle whandle;
429
430    struct pipe_screen *screen = srf->xa->screen;
431    boolean res;
432
433    memset(&whandle, 0, sizeof(whandle));
434    whandle.type = DRM_API_HANDLE_TYPE_SHARED;
435    res = screen->resource_get_handle(screen, srf->tex, &whandle);
436    if (!res)
437	return -XA_ERR_INVAL;
438
439    *handle = whandle.handle;
440    *stride = whandle.stride;
441
442    return XA_ERR_NONE;
443}
444
445enum xa_formats
446xa_surface_format(const struct xa_surface *srf)
447{
448    return srf->fdesc.xa_format;
449}
450