1 #include "xorg_tracker.h"
2 
3 #include <xf86xv.h>
4 #include <X11/extensions/Xv.h>
5 #include <fourcc.h>
6 
7 #include "xorg_exa.h"
8 #include "xorg_renderer.h"
9 #include "xorg_exa_tgsi.h"
10 
11 #include "cso_cache/cso_context.h"
12 #include "util/u_sampler.h"
13 
14 #include "pipe/p_screen.h"
15 
16 /*XXX get these from pipe's texture limits */
17 #define IMAGE_MAX_WIDTH		2048
18 #define IMAGE_MAX_HEIGHT	2048
19 
20 #define RES_720P_X 1280
21 #define RES_720P_Y 720
22 
23 
24 /* The ITU-R BT.601 conversion matrix for SDTV. */
25 /* original, matrix, but we transpose it to
26  * make the shader easier
27 static const float bt_601[] = {
28     1.0, 0.0, 1.4075,   ,
29     1.0, -0.3455, -0.7169, 0,
30     1.0, 1.7790, 0., 0,
31 };*/
32 static const float bt_601[] = {
33     1.0, 1.0, 1.0,        0.5,
34     0.0, -0.3455, 1.7790, 0,
35     1.4075, -0.7169, 0.,  0,
36 };
37 
38 /* The ITU-R BT.709 conversion matrix for HDTV. */
39 /* original, but we transpose to make the conversion
40  * in the shader easier
41 static const float bt_709[] = {
42     1.0, 0.0, 1.581, 0,
43     1.0, -0.1881, -0.47, 0,
44     1.0, 1.8629, 0., 0,
45 };*/
46 static const float bt_709[] = {
47     1.0,   1.0,     1.0,     0.5,
48     0.0,  -0.1881,  1.8629,  0,
49     1.581,-0.47   , 0.0,     0,
50 };
51 
52 #define MAKE_ATOM(a) MakeAtom(a, sizeof(a) - 1, TRUE)
53 
54 static Atom xvBrightness, xvContrast;
55 
56 #define NUM_TEXTURED_ATTRIBUTES 2
57 static XF86AttributeRec TexturedAttributes[NUM_TEXTURED_ATTRIBUTES] = {
58    {XvSettable | XvGettable, -128, 127, "XV_BRIGHTNESS"},
59    {XvSettable | XvGettable, 0, 255, "XV_CONTRAST"}
60 };
61 
62 #define NUM_FORMATS 3
63 static XF86VideoFormatRec Formats[NUM_FORMATS] = {
64    {15, TrueColor}, {16, TrueColor}, {24, TrueColor}
65 };
66 
67 static XF86VideoEncodingRec DummyEncoding[1] = {
68    {
69       0,
70       "XV_IMAGE",
71       IMAGE_MAX_WIDTH, IMAGE_MAX_HEIGHT,
72       {1, 1}
73    }
74 };
75 
76 #define NUM_IMAGES 3
77 static XF86ImageRec Images[NUM_IMAGES] = {
78    XVIMAGE_UYVY,
79    XVIMAGE_YUY2,
80    XVIMAGE_YV12,
81 };
82 
83 struct xorg_xv_port_priv {
84    struct xorg_renderer *r;
85 
86    RegionRec clip;
87 
88    int brightness;
89    int contrast;
90 
91    int current_set;
92    /* juggle two sets of seperate Y, U and V
93     * textures */
94    struct pipe_resource *yuv[2][3];
95    struct pipe_sampler_view *yuv_views[2][3];
96 };
97 
98 
99 static void
stop_video(ScrnInfoPtr pScrn,pointer data,Bool shutdown)100 stop_video(ScrnInfoPtr pScrn, pointer data, Bool shutdown)
101 {
102    struct xorg_xv_port_priv *priv = (struct xorg_xv_port_priv *)data;
103 
104    REGION_EMPTY(pScrn->pScreen, &priv->clip);
105 }
106 
107 static int
set_port_attribute(ScrnInfoPtr pScrn,Atom attribute,INT32 value,pointer data)108 set_port_attribute(ScrnInfoPtr pScrn,
109                    Atom attribute, INT32 value, pointer data)
110 {
111    struct xorg_xv_port_priv *priv = (struct xorg_xv_port_priv *)data;
112 
113    if (attribute == xvBrightness) {
114       if ((value < -128) || (value > 127))
115          return BadValue;
116       priv->brightness = value;
117    } else if (attribute == xvContrast) {
118       if ((value < 0) || (value > 255))
119          return BadValue;
120       priv->contrast = value;
121    } else
122       return BadMatch;
123 
124    return Success;
125 }
126 
127 static int
get_port_attribute(ScrnInfoPtr pScrn,Atom attribute,INT32 * value,pointer data)128 get_port_attribute(ScrnInfoPtr pScrn,
129                    Atom attribute, INT32 * value, pointer data)
130 {
131    struct xorg_xv_port_priv *priv = (struct xorg_xv_port_priv *)data;
132 
133    if (attribute == xvBrightness)
134       *value = priv->brightness;
135    else if (attribute == xvContrast)
136       *value = priv->contrast;
137    else
138       return BadMatch;
139 
140    return Success;
141 }
142 
143 static void
query_best_size(ScrnInfoPtr pScrn,Bool motion,short vid_w,short vid_h,short drw_w,short drw_h,unsigned int * p_w,unsigned int * p_h,pointer data)144 query_best_size(ScrnInfoPtr pScrn,
145                 Bool motion,
146                 short vid_w, short vid_h,
147                 short drw_w, short drw_h,
148                 unsigned int *p_w, unsigned int *p_h, pointer data)
149 {
150    if (vid_w > (drw_w << 1))
151       drw_w = vid_w >> 1;
152    if (vid_h > (drw_h << 1))
153       drw_h = vid_h >> 1;
154 
155    *p_w = drw_w;
156    *p_h = drw_h;
157 }
158 
159 static INLINE struct pipe_resource *
create_component_texture(struct pipe_context * pipe,int width,int height)160 create_component_texture(struct pipe_context *pipe,
161                          int width, int height)
162 {
163    struct pipe_screen *screen = pipe->screen;
164    struct pipe_resource *tex = 0;
165    struct pipe_resource templ;
166 
167    memset(&templ, 0, sizeof(templ));
168    templ.target = PIPE_TEXTURE_2D;
169    templ.format = PIPE_FORMAT_L8_UNORM;
170    templ.last_level = 0;
171    templ.width0 = width;
172    templ.height0 = height;
173    templ.depth0 = 1;
174    templ.array_size = 1;
175    templ.bind = PIPE_BIND_SAMPLER_VIEW;
176 
177    tex = screen->resource_create(screen, &templ);
178 
179    return tex;
180 }
181 
182 static int
check_yuv_textures(struct xorg_xv_port_priv * priv,int width,int height)183 check_yuv_textures(struct xorg_xv_port_priv *priv,  int width, int height)
184 {
185    struct pipe_resource **dst = priv->yuv[priv->current_set];
186    struct pipe_sampler_view **dst_view = priv->yuv_views[priv->current_set];
187    struct pipe_sampler_view view_templ;
188    struct pipe_context *pipe = priv->r->pipe;
189 
190    if (!dst[0] ||
191        dst[0]->width0 != width ||
192        dst[0]->height0 != height) {
193       pipe_resource_reference(&dst[0], NULL);
194       pipe_sampler_view_reference(&dst_view[0], NULL);
195    }
196    if (!dst[1] ||
197        dst[1]->width0 != width ||
198        dst[1]->height0 != height) {
199       pipe_resource_reference(&dst[1], NULL);
200       pipe_sampler_view_reference(&dst_view[1], NULL);
201    }
202    if (!dst[2] ||
203        dst[2]->width0 != width ||
204        dst[2]->height0 != height) {
205       pipe_resource_reference(&dst[2], NULL);
206       pipe_sampler_view_reference(&dst_view[2], NULL);
207    }
208 
209    if (!dst[0]) {
210       dst[0] = create_component_texture(priv->r->pipe, width, height);
211       if (dst[0]) {
212          u_sampler_view_default_template(&view_templ,
213                                          dst[0],
214                                          dst[0]->format);
215          dst_view[0] = pipe->create_sampler_view(pipe, dst[0], &view_templ);
216       }
217    }
218 
219    if (!dst[1]) {
220       dst[1] = create_component_texture(priv->r->pipe, width, height);
221       if (dst[1]) {
222          u_sampler_view_default_template(&view_templ,
223                                          dst[1],
224                                          dst[1]->format);
225          dst_view[1] = pipe->create_sampler_view(pipe, dst[1], &view_templ);
226       }
227    }
228 
229    if (!dst[2]) {
230       dst[2] = create_component_texture(priv->r->pipe, width, height);
231       if (dst[2]) {
232          u_sampler_view_default_template(&view_templ,
233                                       dst[2],
234                                       dst[2]->format);
235          dst_view[2] = pipe->create_sampler_view(pipe, dst[2], &view_templ);
236       }
237    }
238 
239    if (!dst[0] || !dst[1] || !dst[2] || !dst_view[0] || !dst_view[1] || !dst_view[2] )
240       return BadAlloc;
241 
242    return Success;
243 }
244 
245 static int
query_image_attributes(ScrnInfoPtr pScrn,int id,unsigned short * w,unsigned short * h,int * pitches,int * offsets)246 query_image_attributes(ScrnInfoPtr pScrn,
247                        int id,
248                        unsigned short *w, unsigned short *h,
249                        int *pitches, int *offsets)
250 {
251    int size, tmp;
252 
253    if (*w > IMAGE_MAX_WIDTH)
254       *w = IMAGE_MAX_WIDTH;
255    if (*h > IMAGE_MAX_HEIGHT)
256       *h = IMAGE_MAX_HEIGHT;
257 
258    *w = (*w + 1) & ~1;
259    if (offsets)
260       offsets[0] = 0;
261 
262    switch (id) {
263    case FOURCC_YV12:
264       *h = (*h + 1) & ~1;
265       size = (*w + 3) & ~3;
266       if (pitches) {
267          pitches[0] = size;
268       }
269       size *= *h;
270       if (offsets) {
271          offsets[1] = size;
272       }
273       tmp = ((*w >> 1) + 3) & ~3;
274       if (pitches) {
275          pitches[1] = pitches[2] = tmp;
276       }
277       tmp *= (*h >> 1);
278       size += tmp;
279       if (offsets) {
280          offsets[2] = size;
281       }
282       size += tmp;
283       break;
284    case FOURCC_UYVY:
285    case FOURCC_YUY2:
286    default:
287       size = *w << 1;
288       if (pitches)
289 	 pitches[0] = size;
290       size *= *h;
291       break;
292    }
293 
294    return size;
295 }
296 
297 static void
copy_packed_data(ScrnInfoPtr pScrn,struct xorg_xv_port_priv * port,int id,unsigned char * buf,int left,int top,unsigned short w,unsigned short h)298 copy_packed_data(ScrnInfoPtr pScrn,
299                  struct xorg_xv_port_priv *port,
300                  int id,
301                  unsigned char *buf,
302                  int left,
303                  int top,
304                  unsigned short w, unsigned short h)
305 {
306    int i, j;
307    struct pipe_resource **dst = port->yuv[port->current_set];
308    struct pipe_transfer *ytrans, *utrans, *vtrans;
309    struct pipe_context *pipe = port->r->pipe;
310    char *ymap, *vmap, *umap;
311    unsigned char y1, y2, u, v;
312    int yidx, uidx, vidx;
313    int y_array_size = w * h;
314 
315    ytrans = pipe_get_transfer(pipe, dst[0],
316                               0, 0,
317                               PIPE_TRANSFER_WRITE,
318                               left, top, w, h);
319    utrans = pipe_get_transfer(pipe, dst[1],
320                               0, 0,
321                               PIPE_TRANSFER_WRITE,
322                               left, top, w, h);
323    vtrans = pipe_get_transfer(pipe, dst[2],
324                               0, 0,
325                               PIPE_TRANSFER_WRITE,
326                               left, top, w, h);
327 
328    ymap = (char*)pipe->transfer_map(pipe, ytrans);
329    umap = (char*)pipe->transfer_map(pipe, utrans);
330    vmap = (char*)pipe->transfer_map(pipe, vtrans);
331 
332    yidx = uidx = vidx = 0;
333 
334    switch (id) {
335    case FOURCC_YV12: {
336       int pitches[3], offsets[3];
337       unsigned char *y, *u, *v;
338       query_image_attributes(pScrn, FOURCC_YV12,
339                              &w, &h, pitches, offsets);
340 
341       y = buf + offsets[0];
342       v = buf + offsets[1];
343       u = buf + offsets[2];
344       for (i = 0; i < h; ++i) {
345          for (j = 0; j < w; ++j) {
346             int yoffset = (w*i+j);
347             int ii = (i|1), jj = (j|1);
348             int vuoffset = (w/2)*(ii/2) + (jj/2);
349             ymap[yidx++] = y[yoffset];
350             umap[uidx++] = u[vuoffset];
351             vmap[vidx++] = v[vuoffset];
352          }
353       }
354    }
355       break;
356    case FOURCC_UYVY:
357       for (i = 0; i < y_array_size; i +=2 ) {
358          /* extracting two pixels */
359          u  = buf[0];
360          y1 = buf[1];
361          v  = buf[2];
362          y2 = buf[3];
363          buf += 4;
364 
365          ymap[yidx++] = y1;
366          ymap[yidx++] = y2;
367          umap[uidx++] = u;
368          umap[uidx++] = u;
369          vmap[vidx++] = v;
370          vmap[vidx++] = v;
371       }
372       break;
373    case FOURCC_YUY2:
374       for (i = 0; i < y_array_size; i +=2 ) {
375          /* extracting two pixels */
376          y1 = buf[0];
377          u  = buf[1];
378          y2 = buf[2];
379          v  = buf[3];
380 
381          buf += 4;
382 
383          ymap[yidx++] = y1;
384          ymap[yidx++] = y2;
385          umap[uidx++] = u;
386          umap[uidx++] = u;
387          vmap[vidx++] = v;
388          vmap[vidx++] = v;
389       }
390       break;
391    default:
392       debug_assert(!"Unsupported yuv format!");
393       break;
394    }
395 
396    pipe->transfer_unmap(pipe, ytrans);
397    pipe->transfer_unmap(pipe, utrans);
398    pipe->transfer_unmap(pipe, vtrans);
399    pipe->transfer_destroy(pipe, ytrans);
400    pipe->transfer_destroy(pipe, utrans);
401    pipe->transfer_destroy(pipe, vtrans);
402 }
403 
404 
405 static void
setup_fs_video_constants(struct xorg_renderer * r,boolean hdtv)406 setup_fs_video_constants(struct xorg_renderer *r, boolean hdtv)
407 {
408    const int param_bytes = 12 * sizeof(float);
409    const float *video_constants = (hdtv) ? bt_709 : bt_601;
410 
411    renderer_set_constants(r, PIPE_SHADER_FRAGMENT,
412                           video_constants, param_bytes);
413 }
414 
415 static void
draw_yuv(struct xorg_xv_port_priv * port,float src_x,float src_y,float src_w,float src_h,int dst_x,int dst_y,int dst_w,int dst_h)416 draw_yuv(struct xorg_xv_port_priv *port,
417          float src_x, float src_y, float src_w, float src_h,
418          int dst_x, int dst_y, int dst_w, int dst_h)
419 {
420    struct pipe_resource **textures = port->yuv[port->current_set];
421 
422    /*debug_printf("  draw_yuv([%d, %d, %d ,%d], [%d, %d, %d, %d])\n",
423                 src_x, src_y, src_w, src_h,
424                 dst_x, dst_y, dst_w, dst_h);*/
425    renderer_draw_yuv(port->r,
426                      src_x, src_y, src_w, src_h,
427                      dst_x, dst_y, dst_w, dst_h,
428                      textures);
429 }
430 
431 static void
bind_blend_state(struct xorg_xv_port_priv * port)432 bind_blend_state(struct xorg_xv_port_priv *port)
433 {
434    struct pipe_blend_state blend;
435 
436    memset(&blend, 0, sizeof(struct pipe_blend_state));
437    blend.rt[0].blend_enable = 0;
438    blend.rt[0].colormask = PIPE_MASK_RGBA;
439 
440    /* porter&duff src */
441    blend.rt[0].rgb_src_factor   = PIPE_BLENDFACTOR_ONE;
442    blend.rt[0].alpha_src_factor = PIPE_BLENDFACTOR_ONE;
443    blend.rt[0].rgb_dst_factor   = PIPE_BLENDFACTOR_ZERO;
444    blend.rt[0].alpha_dst_factor = PIPE_BLENDFACTOR_ZERO;
445 
446    cso_set_blend(port->r->cso, &blend);
447 }
448 
449 
450 static void
bind_shaders(struct xorg_xv_port_priv * port)451 bind_shaders(struct xorg_xv_port_priv *port)
452 {
453    unsigned vs_traits = 0, fs_traits = 0;
454    struct xorg_shader shader;
455 
456    vs_traits |= VS_YUV;
457    fs_traits |= FS_YUV;
458 
459    shader = xorg_shaders_get(port->r->shaders, vs_traits, fs_traits);
460    cso_set_vertex_shader_handle(port->r->cso, shader.vs);
461    cso_set_fragment_shader_handle(port->r->cso, shader.fs);
462 }
463 
464 static void
bind_samplers(struct xorg_xv_port_priv * port)465 bind_samplers(struct xorg_xv_port_priv *port)
466 {
467    struct pipe_sampler_state *samplers[PIPE_MAX_SAMPLERS];
468    struct pipe_sampler_state sampler;
469    struct pipe_sampler_view **dst_views = port->yuv_views[port->current_set];
470 
471    memset(&sampler, 0, sizeof(struct pipe_sampler_state));
472 
473    sampler.wrap_s = PIPE_TEX_WRAP_CLAMP;
474    sampler.wrap_t = PIPE_TEX_WRAP_CLAMP;
475    sampler.min_img_filter = PIPE_TEX_FILTER_LINEAR;
476    sampler.mag_img_filter = PIPE_TEX_FILTER_LINEAR;
477    sampler.min_mip_filter = PIPE_TEX_MIPFILTER_NEAREST;
478    sampler.normalized_coords = 1;
479 
480    samplers[0] = &sampler;
481    samplers[1] = &sampler;
482    samplers[2] = &sampler;
483 
484 
485    cso_set_samplers(port->r->cso, PIPE_SHADER_FRAGMENT, 3,
486                     (const struct pipe_sampler_state **)samplers);
487    cso_set_sampler_views(port->r->cso, PIPE_SHADER_FRAGMENT, 3, dst_views);
488 }
489 
490 static int
display_video(ScrnInfoPtr pScrn,struct xorg_xv_port_priv * pPriv,int id,RegionPtr dstRegion,int src_x,int src_y,int src_w,int src_h,int dstX,int dstY,int dst_w,int dst_h,PixmapPtr pPixmap)491 display_video(ScrnInfoPtr pScrn, struct xorg_xv_port_priv *pPriv, int id,
492               RegionPtr dstRegion,
493               int src_x, int src_y, int src_w, int src_h,
494               int dstX, int dstY, int dst_w, int dst_h,
495               PixmapPtr pPixmap)
496 {
497    modesettingPtr ms = modesettingPTR(pScrn);
498    BoxPtr pbox;
499    int nbox;
500    int dxo, dyo;
501    Bool hdtv;
502    int x, y, w, h;
503    struct exa_pixmap_priv *dst;
504    struct pipe_surface *dst_surf = NULL;
505 
506    exaMoveInPixmap(pPixmap);
507    dst = exaGetPixmapDriverPrivate(pPixmap);
508 
509    /*debug_printf("display_video([%d, %d, %d, %d], [%d, %d, %d, %d])\n",
510      src_x, src_y, src_w, src_h, dstX, dstY, dst_w, dst_h);*/
511 
512    if (dst && !dst->tex) {
513 	xorg_exa_set_shared_usage(pPixmap);
514 	pScrn->pScreen->ModifyPixmapHeader(pPixmap, 0, 0, 0, 0, 0, NULL);
515    }
516 
517    if (!dst || !dst->tex)
518       XORG_FALLBACK("Xv destination %s", !dst ? "!dst" : "!dst->tex");
519 
520    dst_surf = xorg_gpu_surface(pPriv->r->pipe, dst);
521    hdtv = ((src_w >= RES_720P_X) && (src_h >= RES_720P_Y));
522 
523 #ifdef COMPOSITE
524    REGION_TRANSLATE(pScrn->pScreen, dstRegion, -pPixmap->screen_x,
525                     -pPixmap->screen_y);
526 #endif
527 
528    dxo = dstRegion->extents.x1;
529    dyo = dstRegion->extents.y1;
530 
531    pbox = REGION_RECTS(dstRegion);
532    nbox = REGION_NUM_RECTS(dstRegion);
533 
534    renderer_bind_destination(pPriv->r, dst_surf,
535                              dst_surf->width, dst_surf->height);
536 
537    bind_blend_state(pPriv);
538    bind_shaders(pPriv);
539    bind_samplers(pPriv);
540    setup_fs_video_constants(pPriv->r, hdtv);
541 
542    DamageDamageRegion(&pPixmap->drawable, dstRegion);
543 
544    while (nbox--) {
545       int box_x1 = pbox->x1;
546       int box_y1 = pbox->y1;
547       int box_x2 = pbox->x2;
548       int box_y2 = pbox->y2;
549       float diff_x = (float)src_w / (float)dst_w;
550       float diff_y = (float)src_h / (float)dst_h;
551       float offset_x = box_x1 - dstX;
552       float offset_y = box_y1 - dstY;
553       float offset_w;
554       float offset_h;
555 
556 #ifdef COMPOSITE
557       offset_x += pPixmap->screen_x;
558       offset_y += pPixmap->screen_y;
559 #endif
560 
561       x = box_x1;
562       y = box_y1;
563       w = box_x2 - box_x1;
564       h = box_y2 - box_y1;
565 
566       offset_w = dst_w - w;
567       offset_h = dst_h - h;
568 
569       draw_yuv(pPriv,
570                (float) src_x + offset_x*diff_x, (float) src_y + offset_y*diff_y,
571                (float) src_w - offset_w*diff_x, (float) src_h - offset_h*diff_y,
572                x, y, w, h);
573 
574       pbox++;
575    }
576    DamageRegionProcessPending(&pPixmap->drawable);
577 
578    pipe_surface_reference(&dst_surf, NULL);
579 
580    return TRUE;
581 }
582 
583 static int
put_image(ScrnInfoPtr pScrn,short src_x,short src_y,short drw_x,short drw_y,short src_w,short src_h,short drw_w,short drw_h,int id,unsigned char * buf,short width,short height,Bool sync,RegionPtr clipBoxes,pointer data,DrawablePtr pDraw)584 put_image(ScrnInfoPtr pScrn,
585           short src_x, short src_y,
586           short drw_x, short drw_y,
587           short src_w, short src_h,
588           short drw_w, short drw_h,
589           int id, unsigned char *buf,
590           short width, short height,
591           Bool sync, RegionPtr clipBoxes, pointer data,
592           DrawablePtr pDraw)
593 {
594    struct xorg_xv_port_priv *pPriv = (struct xorg_xv_port_priv *) data;
595    ScreenPtr pScreen = xf86ScrnToScreen(pScrn);
596    PixmapPtr pPixmap;
597    INT32 x1, x2, y1, y2;
598    BoxRec dstBox;
599    int ret;
600 
601    /* Clip */
602    x1 = src_x;
603    x2 = src_x + src_w;
604    y1 = src_y;
605    y2 = src_y + src_h;
606 
607    dstBox.x1 = drw_x;
608    dstBox.x2 = drw_x + drw_w;
609    dstBox.y1 = drw_y;
610    dstBox.y2 = drw_y + drw_h;
611 
612    if (!xf86XVClipVideoHelper(&dstBox, &x1, &x2, &y1, &y2, clipBoxes,
613 			      width, height))
614       return Success;
615 
616    ret = check_yuv_textures(pPriv, width, height);
617 
618    if (ret)
619       return ret;
620 
621    copy_packed_data(pScrn, pPriv, id, buf,
622                     src_x, src_y, width, height);
623 
624    if (pDraw->type == DRAWABLE_WINDOW) {
625       pPixmap = (*pScreen->GetWindowPixmap)((WindowPtr)pDraw);
626    } else {
627       pPixmap = (PixmapPtr)pDraw;
628    }
629 
630    display_video(pScrn, pPriv, id, clipBoxes,
631                  src_x, src_y, src_w, src_h,
632                  drw_x, drw_y,
633                  drw_w, drw_h, pPixmap);
634 
635    pPriv->current_set = (pPriv->current_set + 1) & 1;
636    return Success;
637 }
638 
639 static struct xorg_xv_port_priv *
port_priv_create(struct xorg_renderer * r)640 port_priv_create(struct xorg_renderer *r)
641 {
642    struct xorg_xv_port_priv *priv = NULL;
643 
644    priv = calloc(1, sizeof(struct xorg_xv_port_priv));
645 
646    if (!priv)
647       return NULL;
648 
649    priv->r = r;
650 
651    REGION_NULL(pScreen, &priv->clip);
652 
653    debug_assert(priv && priv->r);
654 
655    return priv;
656 }
657 
658 static XF86VideoAdaptorPtr
xorg_setup_textured_adapter(ScreenPtr pScreen)659 xorg_setup_textured_adapter(ScreenPtr pScreen)
660 {
661    ScrnInfoPtr pScrn = xf86ScreenToScrn(pScreen);
662    modesettingPtr ms = modesettingPTR(pScrn);
663    XF86VideoAdaptorPtr adapt;
664    XF86AttributePtr attrs;
665    DevUnion *dev_unions;
666    int nports = 16, i;
667    int nattributes;
668 
669    nattributes = NUM_TEXTURED_ATTRIBUTES;
670 
671    debug_assert(ms->exa);
672    debug_assert(ms->exa->renderer);
673 
674    adapt = calloc(1, sizeof(XF86VideoAdaptorRec));
675    dev_unions = calloc(nports, sizeof(DevUnion));
676    attrs = calloc(nattributes, sizeof(XF86AttributeRec));
677    if (adapt == NULL || dev_unions == NULL || attrs == NULL) {
678       free(adapt);
679       free(dev_unions);
680       free(attrs);
681       return NULL;
682    }
683 
684    adapt->type = XvWindowMask | XvInputMask | XvImageMask;
685    adapt->flags = 0;
686    adapt->name = "Gallium3D Textured Video";
687    adapt->nEncodings = 1;
688    adapt->pEncodings = DummyEncoding;
689    adapt->nFormats = NUM_FORMATS;
690    adapt->pFormats = Formats;
691    adapt->nPorts = 0;
692    adapt->pPortPrivates = dev_unions;
693    adapt->nAttributes = nattributes;
694    adapt->pAttributes = attrs;
695    memcpy(attrs, TexturedAttributes, nattributes * sizeof(XF86AttributeRec));
696    adapt->nImages = NUM_IMAGES;
697    adapt->pImages = Images;
698    adapt->PutVideo = NULL;
699    adapt->PutStill = NULL;
700    adapt->GetVideo = NULL;
701    adapt->GetStill = NULL;
702    adapt->StopVideo = stop_video;
703    adapt->SetPortAttribute = set_port_attribute;
704    adapt->GetPortAttribute = get_port_attribute;
705    adapt->QueryBestSize = query_best_size;
706    adapt->PutImage = put_image;
707    adapt->QueryImageAttributes = query_image_attributes;
708 
709    for (i = 0; i < nports; i++) {
710       struct xorg_xv_port_priv *priv =
711          port_priv_create(ms->exa->renderer);
712 
713       adapt->pPortPrivates[i].ptr = (pointer) (priv);
714       adapt->nPorts++;
715    }
716 
717    return adapt;
718 }
719 
720 void
xorg_xv_init(ScreenPtr pScreen)721 xorg_xv_init(ScreenPtr pScreen)
722 {
723    ScrnInfoPtr pScrn = xf86ScreenToScrn(pScreen);
724    /*modesettingPtr ms = modesettingPTR(pScrn);*/
725    XF86VideoAdaptorPtr *adaptors, *new_adaptors = NULL;
726    XF86VideoAdaptorPtr textured_adapter;
727    int num_adaptors;
728 
729    num_adaptors = xf86XVListGenericAdaptors(pScrn, &adaptors);
730    new_adaptors = malloc((num_adaptors + 1) * sizeof(XF86VideoAdaptorPtr *));
731    if (new_adaptors == NULL)
732       return;
733 
734    memcpy(new_adaptors, adaptors, num_adaptors * sizeof(XF86VideoAdaptorPtr));
735    adaptors = new_adaptors;
736 
737    /* Add the adaptors supported by our hardware.  First, set up the atoms
738     * that will be used by both output adaptors.
739     */
740    xvBrightness = MAKE_ATOM("XV_BRIGHTNESS");
741    xvContrast = MAKE_ATOM("XV_CONTRAST");
742 
743    textured_adapter = xorg_setup_textured_adapter(pScreen);
744 
745    debug_assert(textured_adapter);
746 
747    if (textured_adapter) {
748       adaptors[num_adaptors++] = textured_adapter;
749    }
750 
751    if (num_adaptors) {
752       xf86XVScreenInit(pScreen, adaptors, num_adaptors);
753       if (textured_adapter)
754          xorg_xvmc_init(pScreen, textured_adapter->name);
755    } else {
756       xf86DrvMsg(pScrn->scrnIndex, X_WARNING,
757                  "Disabling Xv because no adaptors could be initialized.\n");
758    }
759 
760    free(adaptors);
761 }
762