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 <linux/iosys-map.h>
24
25 #include <drm/drm_fourcc.h>
26 #include <drm/drm_framebuffer.h>
27
28 #include "qxl_drv.h"
29 #include "qxl_object.h"
30
alloc_clips(struct qxl_device * qdev,struct qxl_release * release,unsigned int num_clips,struct qxl_bo ** clips_bo)31 static int alloc_clips(struct qxl_device *qdev,
32 struct qxl_release *release,
33 unsigned int num_clips,
34 struct qxl_bo **clips_bo)
35 {
36 int size = sizeof(struct qxl_clip_rects) + sizeof(struct qxl_rect) * num_clips;
37
38 return qxl_alloc_bo_reserved(qdev, release, size, clips_bo);
39 }
40
41 /* returns a pointer to the already allocated qxl_rect array inside
42 * the qxl_clip_rects. This is *not* the same as the memory allocated
43 * on the device, it is offset to qxl_clip_rects.chunk.data */
drawable_set_clipping(struct qxl_device * qdev,unsigned int num_clips,struct qxl_bo * clips_bo)44 static struct qxl_rect *drawable_set_clipping(struct qxl_device *qdev,
45 unsigned int num_clips,
46 struct qxl_bo *clips_bo)
47 {
48 struct iosys_map map;
49 struct qxl_clip_rects *dev_clips;
50 int ret;
51
52 ret = qxl_bo_vmap_locked(clips_bo, &map);
53 if (ret)
54 return NULL;
55 dev_clips = map.vaddr; /* TODO: Use mapping abstraction properly */
56
57 dev_clips->num_rects = num_clips;
58 dev_clips->chunk.next_chunk = 0;
59 dev_clips->chunk.prev_chunk = 0;
60 dev_clips->chunk.data_size = sizeof(struct qxl_rect) * num_clips;
61 return (struct qxl_rect *)dev_clips->chunk.data;
62 }
63
64 static int
alloc_drawable(struct qxl_device * qdev,struct qxl_release ** release)65 alloc_drawable(struct qxl_device *qdev, struct qxl_release **release)
66 {
67 return qxl_alloc_release_reserved(qdev, sizeof(struct qxl_drawable),
68 QXL_RELEASE_DRAWABLE, release, NULL);
69 }
70
71 static void
free_drawable(struct qxl_device * qdev,struct qxl_release * release)72 free_drawable(struct qxl_device *qdev, struct qxl_release *release)
73 {
74 qxl_release_free(qdev, release);
75 }
76
77 /* release needs to be reserved at this point */
78 static int
make_drawable(struct qxl_device * qdev,int surface,uint8_t type,const struct qxl_rect * rect,struct qxl_release * release)79 make_drawable(struct qxl_device *qdev, int surface, uint8_t type,
80 const struct qxl_rect *rect,
81 struct qxl_release *release)
82 {
83 struct qxl_drawable *drawable;
84 int i;
85
86 drawable = (struct qxl_drawable *)qxl_release_map(qdev, release);
87 if (!drawable)
88 return -ENOMEM;
89
90 drawable->type = type;
91
92 drawable->surface_id = surface; /* Only primary for now */
93 drawable->effect = QXL_EFFECT_OPAQUE;
94 drawable->self_bitmap = 0;
95 drawable->self_bitmap_area.top = 0;
96 drawable->self_bitmap_area.left = 0;
97 drawable->self_bitmap_area.bottom = 0;
98 drawable->self_bitmap_area.right = 0;
99 /* FIXME: add clipping */
100 drawable->clip.type = SPICE_CLIP_TYPE_NONE;
101
102 /*
103 * surfaces_dest[i] should apparently be filled out with the
104 * surfaces that we depend on, and surface_rects should be
105 * filled with the rectangles of those surfaces that we
106 * are going to use.
107 */
108 for (i = 0; i < 3; ++i)
109 drawable->surfaces_dest[i] = -1;
110
111 if (rect)
112 drawable->bbox = *rect;
113
114 drawable->mm_time = qdev->rom->mm_clock;
115 qxl_release_unmap(qdev, release, &drawable->release_info);
116 return 0;
117 }
118
119 /* push a draw command using the given clipping rectangles as
120 * the sources from the shadow framebuffer.
121 *
122 * Right now implementing with a single draw and a clip list. Clip
123 * lists are known to be a problem performance wise, this can be solved
124 * by treating them differently in the server.
125 */
qxl_draw_dirty_fb(struct qxl_device * qdev,struct drm_framebuffer * fb,struct qxl_bo * bo,unsigned int flags,unsigned int color,struct drm_clip_rect * clips,unsigned int num_clips,int inc,uint32_t dumb_shadow_offset)126 void qxl_draw_dirty_fb(struct qxl_device *qdev,
127 struct drm_framebuffer *fb,
128 struct qxl_bo *bo,
129 unsigned int flags, unsigned int color,
130 struct drm_clip_rect *clips,
131 unsigned int num_clips, int inc,
132 uint32_t dumb_shadow_offset)
133 {
134 /*
135 * TODO: if flags & DRM_MODE_FB_DIRTY_ANNOTATE_FILL then we should
136 * send a fill command instead, much cheaper.
137 *
138 * See include/drm/drm_mode.h
139 */
140 struct drm_clip_rect *clips_ptr;
141 int i;
142 int left, right, top, bottom;
143 int width, height;
144 struct qxl_drawable *drawable;
145 struct qxl_rect drawable_rect;
146 struct qxl_rect *rects;
147 int stride = fb->pitches[0];
148 /* depth is not actually interesting, we don't mask with it */
149 int depth = fb->format->cpp[0] * 8;
150 struct iosys_map surface_map;
151 uint8_t *surface_base;
152 struct qxl_release *release;
153 struct qxl_bo *clips_bo;
154 struct qxl_drm_image *dimage;
155 int ret;
156
157 ret = alloc_drawable(qdev, &release);
158 if (ret)
159 return;
160
161 clips->x1 += dumb_shadow_offset;
162 clips->x2 += dumb_shadow_offset;
163
164 left = clips->x1;
165 right = clips->x2;
166 top = clips->y1;
167 bottom = clips->y2;
168
169 /* skip the first clip rect */
170 for (i = 1, clips_ptr = clips + inc;
171 i < num_clips; i++, clips_ptr += inc) {
172 left = min_t(int, left, (int)clips_ptr->x1);
173 right = max_t(int, right, (int)clips_ptr->x2);
174 top = min_t(int, top, (int)clips_ptr->y1);
175 bottom = max_t(int, bottom, (int)clips_ptr->y2);
176 }
177
178 width = right - left;
179 height = bottom - top;
180
181 ret = alloc_clips(qdev, release, num_clips, &clips_bo);
182 if (ret)
183 goto out_free_drawable;
184
185 ret = qxl_image_alloc_objects(qdev, release,
186 &dimage,
187 height, stride);
188 if (ret)
189 goto out_free_clips;
190
191 /* do a reservation run over all the objects we just allocated */
192 ret = qxl_release_reserve_list(release, true);
193 if (ret)
194 goto out_free_image;
195
196 drawable_rect.left = left;
197 drawable_rect.right = right;
198 drawable_rect.top = top;
199 drawable_rect.bottom = bottom;
200
201 ret = make_drawable(qdev, 0, QXL_DRAW_COPY, &drawable_rect,
202 release);
203 if (ret)
204 goto out_release_backoff;
205
206 ret = qxl_bo_vmap_locked(bo, &surface_map);
207 if (ret)
208 goto out_release_backoff;
209 surface_base = surface_map.vaddr; /* TODO: Use mapping abstraction properly */
210
211 ret = qxl_image_init(qdev, release, dimage, surface_base,
212 left - dumb_shadow_offset,
213 top, width, height, depth, stride);
214 qxl_bo_vunmap_locked(bo);
215 if (ret)
216 goto out_release_backoff;
217
218 rects = drawable_set_clipping(qdev, num_clips, clips_bo);
219 if (!rects) {
220 ret = -EINVAL;
221 goto out_release_backoff;
222 }
223 drawable = (struct qxl_drawable *)qxl_release_map(qdev, release);
224
225 drawable->clip.type = SPICE_CLIP_TYPE_RECTS;
226 drawable->clip.data = qxl_bo_physical_address(qdev,
227 clips_bo, 0);
228
229 drawable->u.copy.src_area.top = 0;
230 drawable->u.copy.src_area.bottom = height;
231 drawable->u.copy.src_area.left = 0;
232 drawable->u.copy.src_area.right = width;
233
234 drawable->u.copy.rop_descriptor = SPICE_ROPD_OP_PUT;
235 drawable->u.copy.scale_mode = 0;
236 drawable->u.copy.mask.flags = 0;
237 drawable->u.copy.mask.pos.x = 0;
238 drawable->u.copy.mask.pos.y = 0;
239 drawable->u.copy.mask.bitmap = 0;
240
241 drawable->u.copy.src_bitmap = qxl_bo_physical_address(qdev, dimage->bo, 0);
242 qxl_release_unmap(qdev, release, &drawable->release_info);
243
244 clips_ptr = clips;
245 for (i = 0; i < num_clips; i++, clips_ptr += inc) {
246 rects[i].left = clips_ptr->x1;
247 rects[i].right = clips_ptr->x2;
248 rects[i].top = clips_ptr->y1;
249 rects[i].bottom = clips_ptr->y2;
250 }
251 qxl_bo_vunmap_locked(clips_bo);
252
253 qxl_release_fence_buffer_objects(release);
254 qxl_push_command_ring_release(qdev, release, QXL_CMD_DRAW, false);
255
256 out_release_backoff:
257 if (ret)
258 qxl_release_backoff_reserve_list(release);
259 out_free_image:
260 qxl_image_free_objects(qdev, dimage);
261 out_free_clips:
262 qxl_bo_unref(&clips_bo);
263 out_free_drawable:
264 /* only free drawable on error */
265 if (ret)
266 free_drawable(qdev, release);
267
268 }
269