xa_tracker.c revision 4d04367eca66a85e26f7c0f5d6392823d13880f6 
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
136XA_EXPORT struct 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
197XA_EXPORT void
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     * Don't recreate if we're dropping the scanout flag.
224     */
225    if (flag_diff & XA_FLAG_SCANOUT)
226	return ((new_flags & XA_FLAG_SCANOUT) == 0);
227
228    /*
229     * Always recreate for unknown / unimplemented flags.
230     */
231    return 0;
232}
233
234static struct xa_format_descriptor
235xa_get_format_stype_depth(struct xa_tracker *xa,
236			  enum xa_surface_type stype, unsigned int depth)
237{
238    unsigned int i;
239    struct xa_format_descriptor fdesc;
240    int found = 0;
241
242    for (i = xa->format_map[stype][0]; i <= xa->format_map[stype][1]; ++i) {
243	fdesc = xa_get_pipe_format(xa->supported_formats[i]);
244	if (fdesc.xa_format != xa_format_unknown &&
245	    xa_format_depth(fdesc.xa_format) == depth) {
246	    found = 1;
247	    break;
248	}
249    }
250
251    if (!found)
252	fdesc.xa_format = xa_format_unknown;
253
254    return fdesc;
255}
256
257XA_EXPORT int
258xa_format_check_supported(struct xa_tracker *xa,
259			  enum xa_formats xa_format, unsigned int flags)
260{
261    struct xa_format_descriptor fdesc = xa_get_pipe_format(xa_format);
262    unsigned int bind;
263
264    if (fdesc.xa_format == xa_format_unknown)
265	return -XA_ERR_INVAL;
266
267    bind = stype_bind[xa_format_type(fdesc.xa_format)];
268    if (flags & XA_FLAG_SHARED)
269	bind |= PIPE_BIND_SHARED;
270    if (flags & XA_FLAG_RENDER_TARGET)
271	bind |= PIPE_BIND_RENDER_TARGET;
272    if (flags & XA_FLAG_SCANOUT)
273	bind |= PIPE_BIND_SCANOUT;
274
275    if (!xa->screen->is_format_supported(xa->screen, fdesc.format,
276					 PIPE_TEXTURE_2D, 0, bind))
277	return -XA_ERR_INVAL;
278
279    return XA_ERR_NONE;
280}
281
282XA_EXPORT struct xa_surface *
283xa_surface_create(struct xa_tracker *xa,
284		  int width,
285		  int height,
286		  int depth,
287		  enum xa_surface_type stype,
288		  enum xa_formats xa_format, unsigned int flags)
289{
290    struct pipe_resource *template;
291    struct xa_surface *srf;
292    struct xa_format_descriptor fdesc;
293
294    if (xa_format == xa_format_unknown)
295	fdesc = xa_get_format_stype_depth(xa, stype, depth);
296    else
297	fdesc = xa_get_pipe_format(xa_format);
298
299    if (fdesc.xa_format == xa_format_unknown)
300	return NULL;
301
302    srf = calloc(1, sizeof(*srf));
303    if (!srf)
304	return NULL;
305
306    template = &srf->template;
307    template->format = fdesc.format;
308    template->target = PIPE_TEXTURE_2D;
309    template->width0 = width;
310    template->height0 = height;
311    template->depth0 = 1;
312    template->array_size = 1;
313    template->last_level = 0;
314    template->bind = stype_bind[xa_format_type(fdesc.xa_format)];
315
316    if (flags & XA_FLAG_SHARED)
317	template->bind |= PIPE_BIND_SHARED;
318    if (flags & XA_FLAG_RENDER_TARGET)
319	template->bind |= PIPE_BIND_RENDER_TARGET;
320    if (flags & XA_FLAG_SCANOUT)
321	template->bind |= PIPE_BIND_SCANOUT;
322
323    srf->tex = xa->screen->resource_create(xa->screen, template);
324    if (!srf->tex)
325	goto out_no_tex;
326
327    srf->xa = xa;
328    srf->flags = flags;
329    srf->fdesc = fdesc;
330
331    return srf;
332 out_no_tex:
333    free(srf);
334    return NULL;
335}
336
337XA_EXPORT int
338xa_surface_redefine(struct xa_surface *srf,
339		    int width,
340		    int height,
341		    int depth,
342		    enum xa_surface_type stype,
343		    enum xa_formats xa_format,
344		    unsigned int new_flags,
345		    int copy_contents)
346{
347    struct pipe_resource *template = &srf->template;
348    struct pipe_resource *texture;
349    struct pipe_box src_box;
350    struct xa_tracker *xa = srf->xa;
351    int save_width;
352    int save_height;
353    unsigned int save_format;
354    struct xa_format_descriptor fdesc;
355
356
357    if (xa_format == xa_format_unknown)
358	fdesc = xa_get_format_stype_depth(xa, stype, depth);
359    else
360	fdesc = xa_get_pipe_format(xa_format);
361
362    if (width == template->width0 && height == template->height0 &&
363	template->format == fdesc.format &&
364	xa_flags_compat(srf->flags, new_flags))
365	return XA_ERR_NONE;
366
367    template->bind = stype_bind[xa_format_type(fdesc.xa_format)];
368    if (new_flags & XA_FLAG_SHARED)
369	template->bind |= PIPE_BIND_SHARED;
370    if (new_flags & XA_FLAG_RENDER_TARGET)
371	template->bind |= PIPE_BIND_RENDER_TARGET;
372    if (new_flags & XA_FLAG_SCANOUT)
373	template->bind |= PIPE_BIND_SCANOUT;
374
375    if (copy_contents) {
376	if (!xa_format_type_is_color(fdesc.xa_format) ||
377	    xa_format_type(fdesc.xa_format) == xa_type_a)
378	    return -XA_ERR_INVAL;
379
380	if (!xa->screen->is_format_supported(xa->screen, fdesc.format,
381					     PIPE_TEXTURE_2D, 0,
382					     template->bind |
383					     PIPE_BIND_RENDER_TARGET))
384	    return -XA_ERR_INVAL;
385    }
386
387    save_width = template->width0;
388    save_height = template->height0;
389    save_format = template->format;
390
391    template->width0 = width;
392    template->height0 = height;
393    template->format = fdesc.format;
394
395    texture = xa->screen->resource_create(xa->screen, template);
396    if (!texture) {
397	template->width0 = save_width;
398	template->height0 = save_height;
399	template->format = save_format;
400	return -XA_ERR_NORES;
401    }
402
403    if (copy_contents) {
404	struct pipe_context *pipe = xa->default_ctx->pipe;
405
406	u_box_origin_2d(xa_min(save_width, template->width0),
407			xa_min(save_height, template->height0), &src_box);
408	pipe->resource_copy_region(pipe, texture,
409				   0, 0, 0, 0, srf->tex, 0, &src_box);
410	pipe->flush(pipe, &xa->default_ctx->last_fence);
411    }
412
413    pipe_resource_reference(&srf->tex, texture);
414    pipe_resource_reference(&texture, NULL);
415    srf->fdesc = fdesc;
416    srf->flags = new_flags;
417
418    return XA_ERR_NONE;
419}
420
421XA_EXPORT void
422xa_surface_destroy(struct xa_surface *srf)
423{
424    pipe_resource_reference(&srf->tex, NULL);
425    free(srf);
426}
427
428XA_EXPORT void
429xa_tracker_version(int *major, int *minor, int *patch)
430{
431    *major = XA_TRACKER_VERSION_MAJOR;
432    *minor = XA_TRACKER_VERSION_MINOR;
433    *patch = XA_TRACKER_VERSION_PATCH;
434}
435
436XA_EXPORT int
437xa_surface_handle(struct xa_surface *srf,
438		  uint32_t * handle, unsigned int *stride)
439{
440    struct winsys_handle whandle;
441
442    struct pipe_screen *screen = srf->xa->screen;
443    boolean res;
444
445    memset(&whandle, 0, sizeof(whandle));
446    whandle.type = DRM_API_HANDLE_TYPE_SHARED;
447    res = screen->resource_get_handle(screen, srf->tex, &whandle);
448    if (!res)
449	return -XA_ERR_INVAL;
450
451    *handle = whandle.handle;
452    *stride = whandle.stride;
453
454    return XA_ERR_NONE;
455}
456
457XA_EXPORT enum xa_formats
458xa_surface_format(const struct xa_surface *srf)
459{
460    return srf->fdesc.xa_format;
461}
462