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/drivers/gpu/drm/qxl/qxl_draw.c

https://gitlab.com/tbwtiot/kernel_source
C | 487 lines | 362 code | 70 blank | 55 comment | 43 complexity | 0ce22faa10cfb8dcc2d4c03bb595d1cd MD5 | raw file
  1/*
  2 * Copyright 2011 Red Hat, Inc.
  3 *
  4 * Permission is hereby granted, free of charge, to any person obtaining a
  5 * copy of this software and associated documentation files (the "Software"),
  6 * to deal in the Software without restriction, including without limitation
  7 * on the rights to use, copy, modify, merge, publish, distribute, sub
  8 * license, and/or sell copies of the Software, and to permit persons to whom
  9 * the Software is furnished to do so, subject to the following conditions:
 10 *
 11 * The above copyright notice and this permission notice (including the next
 12 * paragraph) shall be included in all copies or substantial portions of the
 13 * Software.
 14 *
 15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 17 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.  IN NO EVENT SHALL
 18 * THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
 19 * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
 20 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 21 */
 22
 23#include "qxl_drv.h"
 24#include "qxl_object.h"
 25
 26static int alloc_clips(struct qxl_device *qdev,
 27		       struct qxl_release *release,
 28		       unsigned num_clips,
 29		       struct qxl_bo **clips_bo)
 30{
 31	int size = sizeof(struct qxl_clip_rects) + sizeof(struct qxl_rect) * num_clips;
 32
 33	return qxl_alloc_bo_reserved(qdev, release, size, clips_bo);
 34}
 35
 36/* returns a pointer to the already allocated qxl_rect array inside
 37 * the qxl_clip_rects. This is *not* the same as the memory allocated
 38 * on the device, it is offset to qxl_clip_rects.chunk.data */
 39static struct qxl_rect *drawable_set_clipping(struct qxl_device *qdev,
 40					      struct qxl_drawable *drawable,
 41					      unsigned num_clips,
 42					      struct qxl_bo *clips_bo)
 43{
 44	struct qxl_clip_rects *dev_clips;
 45	int ret;
 46
 47	ret = qxl_bo_kmap(clips_bo, (void **)&dev_clips);
 48	if (ret) {
 49		return NULL;
 50	}
 51	dev_clips->num_rects = num_clips;
 52	dev_clips->chunk.next_chunk = 0;
 53	dev_clips->chunk.prev_chunk = 0;
 54	dev_clips->chunk.data_size = sizeof(struct qxl_rect) * num_clips;
 55	return (struct qxl_rect *)dev_clips->chunk.data;
 56}
 57
 58static int
 59alloc_drawable(struct qxl_device *qdev, struct qxl_release **release)
 60{
 61	int ret;
 62	ret = qxl_alloc_release_reserved(qdev, sizeof(struct qxl_drawable),
 63					 QXL_RELEASE_DRAWABLE, release,
 64					 NULL);
 65	return ret;
 66}
 67
 68static void
 69free_drawable(struct qxl_device *qdev, struct qxl_release *release)
 70{
 71	qxl_release_free(qdev, release);
 72}
 73
 74/* release needs to be reserved at this point */
 75static int
 76make_drawable(struct qxl_device *qdev, int surface, uint8_t type,
 77	      const struct qxl_rect *rect,
 78	      struct qxl_release *release)
 79{
 80	struct qxl_drawable *drawable;
 81	int i;
 82
 83	drawable = (struct qxl_drawable *)qxl_release_map(qdev, release);
 84	if (!drawable)
 85		return -ENOMEM;
 86
 87	drawable->type = type;
 88
 89	drawable->surface_id = surface;		/* Only primary for now */
 90	drawable->effect = QXL_EFFECT_OPAQUE;
 91	drawable->self_bitmap = 0;
 92	drawable->self_bitmap_area.top = 0;
 93	drawable->self_bitmap_area.left = 0;
 94	drawable->self_bitmap_area.bottom = 0;
 95	drawable->self_bitmap_area.right = 0;
 96	/* FIXME: add clipping */
 97	drawable->clip.type = SPICE_CLIP_TYPE_NONE;
 98
 99	/*
100	 * surfaces_dest[i] should apparently be filled out with the
101	 * surfaces that we depend on, and surface_rects should be
102	 * filled with the rectangles of those surfaces that we
103	 * are going to use.
104	 */
105	for (i = 0; i < 3; ++i)
106		drawable->surfaces_dest[i] = -1;
107
108	if (rect)
109		drawable->bbox = *rect;
110
111	drawable->mm_time = qdev->rom->mm_clock;
112	qxl_release_unmap(qdev, release, &drawable->release_info);
113	return 0;
114}
115
116static int alloc_palette_object(struct qxl_device *qdev,
117				struct qxl_release *release,
118				struct qxl_bo **palette_bo)
119{
120	return qxl_alloc_bo_reserved(qdev, release,
121				     sizeof(struct qxl_palette) + sizeof(uint32_t) * 2,
122				     palette_bo);
123}
124
125static int qxl_palette_create_1bit(struct qxl_bo *palette_bo,
126				   struct qxl_release *release,
127				   const struct qxl_fb_image *qxl_fb_image)
128{
129	const struct fb_image *fb_image = &qxl_fb_image->fb_image;
130	uint32_t visual = qxl_fb_image->visual;
131	const uint32_t *pseudo_palette = qxl_fb_image->pseudo_palette;
132	struct qxl_palette *pal;
133	int ret;
134	uint32_t fgcolor, bgcolor;
135	static uint64_t unique; /* we make no attempt to actually set this
136				 * correctly globaly, since that would require
137				 * tracking all of our palettes. */
138	ret = qxl_bo_kmap(palette_bo, (void **)&pal);
139	pal->num_ents = 2;
140	pal->unique = unique++;
141	if (visual == FB_VISUAL_TRUECOLOR || visual == FB_VISUAL_DIRECTCOLOR) {
142		/* NB: this is the only used branch currently. */
143		fgcolor = pseudo_palette[fb_image->fg_color];
144		bgcolor = pseudo_palette[fb_image->bg_color];
145	} else {
146		fgcolor = fb_image->fg_color;
147		bgcolor = fb_image->bg_color;
148	}
149	pal->ents[0] = bgcolor;
150	pal->ents[1] = fgcolor;
151	qxl_bo_kunmap(palette_bo);
152	return 0;
153}
154
155void qxl_draw_opaque_fb(const struct qxl_fb_image *qxl_fb_image,
156			int stride /* filled in if 0 */)
157{
158	struct qxl_device *qdev = qxl_fb_image->qdev;
159	struct qxl_drawable *drawable;
160	struct qxl_rect rect;
161	const struct fb_image *fb_image = &qxl_fb_image->fb_image;
162	int x = fb_image->dx;
163	int y = fb_image->dy;
164	int width = fb_image->width;
165	int height = fb_image->height;
166	const char *src = fb_image->data;
167	int depth = fb_image->depth;
168	struct qxl_release *release;
169	struct qxl_image *image;
170	int ret;
171	struct qxl_drm_image *dimage;
172	struct qxl_bo *palette_bo = NULL;
173	if (stride == 0)
174		stride = depth * width / 8;
175
176	ret = alloc_drawable(qdev, &release);
177	if (ret)
178		return;
179
180	ret = qxl_image_alloc_objects(qdev, release,
181				      &dimage,
182				      height, stride);
183	if (ret)
184		goto out_free_drawable;
185
186	if (depth == 1) {
187		ret = alloc_palette_object(qdev, release, &palette_bo);
188		if (ret)
189			goto out_free_image;
190	}
191
192	/* do a reservation run over all the objects we just allocated */
193	ret = qxl_release_reserve_list(release, true);
194	if (ret)
195		goto out_free_palette;
196
197	rect.left = x;
198	rect.right = x + width;
199	rect.top = y;
200	rect.bottom = y + height;
201
202	ret = make_drawable(qdev, 0, QXL_DRAW_COPY, &rect, release);
203	if (ret) {
204		qxl_release_backoff_reserve_list(release);
205		goto out_free_palette;
206	}
207
208	ret = qxl_image_init(qdev, release, dimage,
209			     (const uint8_t *)src, 0, 0,
210			     width, height, depth, stride);
211	if (ret) {
212		qxl_release_backoff_reserve_list(release);
213		qxl_release_free(qdev, release);
214		return;
215	}
216
217	if (depth == 1) {
218		void *ptr;
219		ret = qxl_palette_create_1bit(palette_bo, release, qxl_fb_image);
220
221		ptr = qxl_bo_kmap_atomic_page(qdev, dimage->bo, 0);
222		image = ptr;
223		image->u.bitmap.palette =
224			qxl_bo_physical_address(qdev, palette_bo, 0);
225		qxl_bo_kunmap_atomic_page(qdev, dimage->bo, ptr);
226	}
227
228	drawable = (struct qxl_drawable *)qxl_release_map(qdev, release);
229
230	drawable->u.copy.src_area.top = 0;
231	drawable->u.copy.src_area.bottom = height;
232	drawable->u.copy.src_area.left = 0;
233	drawable->u.copy.src_area.right = width;
234
235	drawable->u.copy.rop_descriptor = SPICE_ROPD_OP_PUT;
236	drawable->u.copy.scale_mode = 0;
237	drawable->u.copy.mask.flags = 0;
238	drawable->u.copy.mask.pos.x = 0;
239	drawable->u.copy.mask.pos.y = 0;
240	drawable->u.copy.mask.bitmap = 0;
241
242	drawable->u.copy.src_bitmap =
243		qxl_bo_physical_address(qdev, dimage->bo, 0);
244	qxl_release_unmap(qdev, release, &drawable->release_info);
245
246	qxl_push_command_ring_release(qdev, release, QXL_CMD_DRAW, false);
247	qxl_release_fence_buffer_objects(release);
248
249out_free_palette:
250	if (palette_bo)
251		qxl_bo_unref(&palette_bo);
252out_free_image:
253	qxl_image_free_objects(qdev, dimage);
254out_free_drawable:
255	if (ret)
256		free_drawable(qdev, release);
257}
258
259/* push a draw command using the given clipping rectangles as
260 * the sources from the shadow framebuffer.
261 *
262 * Right now implementing with a single draw and a clip list. Clip
263 * lists are known to be a problem performance wise, this can be solved
264 * by treating them differently in the server.
265 */
266void qxl_draw_dirty_fb(struct qxl_device *qdev,
267		       struct qxl_framebuffer *qxl_fb,
268		       struct qxl_bo *bo,
269		       unsigned flags, unsigned color,
270		       struct drm_clip_rect *clips,
271		       unsigned num_clips, int inc)
272{
273	/*
274	 * TODO: if flags & DRM_MODE_FB_DIRTY_ANNOTATE_FILL then we should
275	 * send a fill command instead, much cheaper.
276	 *
277	 * See include/drm/drm_mode.h
278	 */
279	struct drm_clip_rect *clips_ptr;
280	int i;
281	int left, right, top, bottom;
282	int width, height;
283	struct qxl_drawable *drawable;
284	struct qxl_rect drawable_rect;
285	struct qxl_rect *rects;
286	int stride = qxl_fb->base.pitches[0];
287	/* depth is not actually interesting, we don't mask with it */
288	int depth = qxl_fb->base.bits_per_pixel;
289	uint8_t *surface_base;
290	struct qxl_release *release;
291	struct qxl_bo *clips_bo;
292	struct qxl_drm_image *dimage;
293	int ret;
294
295	ret = alloc_drawable(qdev, &release);
296	if (ret)
297		return;
298
299	left = clips->x1;
300	right = clips->x2;
301	top = clips->y1;
302	bottom = clips->y2;
303
304	/* skip the first clip rect */
305	for (i = 1, clips_ptr = clips + inc;
306	     i < num_clips; i++, clips_ptr += inc) {
307		left = min_t(int, left, (int)clips_ptr->x1);
308		right = max_t(int, right, (int)clips_ptr->x2);
309		top = min_t(int, top, (int)clips_ptr->y1);
310		bottom = max_t(int, bottom, (int)clips_ptr->y2);
311	}
312
313	width = right - left;
314	height = bottom - top;
315
316	ret = alloc_clips(qdev, release, num_clips, &clips_bo);
317	if (ret)
318		goto out_free_drawable;
319
320	ret = qxl_image_alloc_objects(qdev, release,
321				      &dimage,
322				      height, stride);
323	if (ret)
324		goto out_free_clips;
325
326	/* do a reservation run over all the objects we just allocated */
327	ret = qxl_release_reserve_list(release, true);
328	if (ret)
329		goto out_free_image;
330
331	drawable_rect.left = left;
332	drawable_rect.right = right;
333	drawable_rect.top = top;
334	drawable_rect.bottom = bottom;
335
336	ret = make_drawable(qdev, 0, QXL_DRAW_COPY, &drawable_rect,
337			    release);
338	if (ret)
339		goto out_release_backoff;
340
341	ret = qxl_bo_kmap(bo, (void **)&surface_base);
342	if (ret)
343		goto out_release_backoff;
344
345
346	ret = qxl_image_init(qdev, release, dimage, surface_base,
347			     left, top, width, height, depth, stride);
348	qxl_bo_kunmap(bo);
349	if (ret)
350		goto out_release_backoff;
351
352	rects = drawable_set_clipping(qdev, drawable, num_clips, clips_bo);
353	if (!rects)
354		goto out_release_backoff;
355
356	drawable = (struct qxl_drawable *)qxl_release_map(qdev, release);
357
358	drawable->clip.type = SPICE_CLIP_TYPE_RECTS;
359	drawable->clip.data = qxl_bo_physical_address(qdev,
360						      clips_bo, 0);
361
362	drawable->u.copy.src_area.top = 0;
363	drawable->u.copy.src_area.bottom = height;
364	drawable->u.copy.src_area.left = 0;
365	drawable->u.copy.src_area.right = width;
366
367	drawable->u.copy.rop_descriptor = SPICE_ROPD_OP_PUT;
368	drawable->u.copy.scale_mode = 0;
369	drawable->u.copy.mask.flags = 0;
370	drawable->u.copy.mask.pos.x = 0;
371	drawable->u.copy.mask.pos.y = 0;
372	drawable->u.copy.mask.bitmap = 0;
373
374	drawable->u.copy.src_bitmap = qxl_bo_physical_address(qdev, dimage->bo, 0);
375	qxl_release_unmap(qdev, release, &drawable->release_info);
376
377	clips_ptr = clips;
378	for (i = 0; i < num_clips; i++, clips_ptr += inc) {
379		rects[i].left   = clips_ptr->x1;
380		rects[i].right  = clips_ptr->x2;
381		rects[i].top    = clips_ptr->y1;
382		rects[i].bottom = clips_ptr->y2;
383	}
384	qxl_bo_kunmap(clips_bo);
385
386	qxl_push_command_ring_release(qdev, release, QXL_CMD_DRAW, false);
387	qxl_release_fence_buffer_objects(release);
388
389out_release_backoff:
390	if (ret)
391		qxl_release_backoff_reserve_list(release);
392out_free_image:
393	qxl_image_free_objects(qdev, dimage);
394out_free_clips:
395	qxl_bo_unref(&clips_bo);
396out_free_drawable:
397	/* only free drawable on error */
398	if (ret)
399		free_drawable(qdev, release);
400
401}
402
403void qxl_draw_copyarea(struct qxl_device *qdev,
404		       u32 width, u32 height,
405		       u32 sx, u32 sy,
406		       u32 dx, u32 dy)
407{
408	struct qxl_drawable *drawable;
409	struct qxl_rect rect;
410	struct qxl_release *release;
411	int ret;
412
413	ret = alloc_drawable(qdev, &release);
414	if (ret)
415		return;
416
417	/* do a reservation run over all the objects we just allocated */
418	ret = qxl_release_reserve_list(release, true);
419	if (ret)
420		goto out_free_release;
421
422	rect.left = dx;
423	rect.top = dy;
424	rect.right = dx + width;
425	rect.bottom = dy + height;
426	ret = make_drawable(qdev, 0, QXL_COPY_BITS, &rect, release);
427	if (ret) {
428		qxl_release_backoff_reserve_list(release);
429		goto out_free_release;
430	}
431
432	drawable = (struct qxl_drawable *)qxl_release_map(qdev, release);
433	drawable->u.copy_bits.src_pos.x = sx;
434	drawable->u.copy_bits.src_pos.y = sy;
435	qxl_release_unmap(qdev, release, &drawable->release_info);
436
437	qxl_push_command_ring_release(qdev, release, QXL_CMD_DRAW, false);
438	qxl_release_fence_buffer_objects(release);
439
440out_free_release:
441	if (ret)
442		free_drawable(qdev, release);
443}
444
445void qxl_draw_fill(struct qxl_draw_fill *qxl_draw_fill_rec)
446{
447	struct qxl_device *qdev = qxl_draw_fill_rec->qdev;
448	struct qxl_rect rect = qxl_draw_fill_rec->rect;
449	uint32_t color = qxl_draw_fill_rec->color;
450	uint16_t rop = qxl_draw_fill_rec->rop;
451	struct qxl_drawable *drawable;
452	struct qxl_release *release;
453	int ret;
454
455	ret = alloc_drawable(qdev, &release);
456	if (ret)
457		return;
458
459	/* do a reservation run over all the objects we just allocated */
460	ret = qxl_release_reserve_list(release, true);
461	if (ret)
462		goto out_free_release;
463
464	ret = make_drawable(qdev, 0, QXL_DRAW_FILL, &rect, release);
465	if (ret) {
466		qxl_release_backoff_reserve_list(release);
467		goto out_free_release;
468	}
469
470	drawable = (struct qxl_drawable *)qxl_release_map(qdev, release);
471	drawable->u.fill.brush.type = SPICE_BRUSH_TYPE_SOLID;
472	drawable->u.fill.brush.u.color = color;
473	drawable->u.fill.rop_descriptor = rop;
474	drawable->u.fill.mask.flags = 0;
475	drawable->u.fill.mask.pos.x = 0;
476	drawable->u.fill.mask.pos.y = 0;
477	drawable->u.fill.mask.bitmap = 0;
478
479	qxl_release_unmap(qdev, release, &drawable->release_info);
480
481	qxl_push_command_ring_release(qdev, release, QXL_CMD_DRAW, false);
482	qxl_release_fence_buffer_objects(release);
483
484out_free_release:
485	if (ret)
486		free_drawable(qdev, release);
487}