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