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