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 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 */ 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 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 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 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 */ 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