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1/*2 * Copyright 2011 Red Hat, Inc.3 *4 * Permission is hereby granted, free of charge, to any person obtaining a5 * copy of this software and associated documentation files (the "Software"),6 * to deal in the Software without restriction, including without limitation7 * on the rights to use, copy, modify, merge, publish, distribute, sub8 * license, and/or sell copies of the Software, and to permit persons to whom9 * the Software is furnished to do so, subject to the following conditions:10 *11 * The above copyright notice and this permission notice (including the next12 * paragraph) shall be included in all copies or substantial portions of the13 * Software.14 *15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,17 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL18 * THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER19 * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN20 * 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 31static 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 inside42 * the qxl_clip_rects. This is *not* the same as the memory allocated43 * on the device, it is offset to qxl_clip_rects.chunk.data */44static 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 64static int65alloc_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 71static void72free_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 */78static int79make_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 the104 * surfaces that we depend on, and surface_rects should be105 * filled with the rectangles of those surfaces that we106 * 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 as120 * the sources from the shadow framebuffer.121 *122 * Right now implementing with a single draw and a clip list. Clip123 * lists are known to be a problem performance wise, this can be solved124 * by treating them differently in the server.125 */126void 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 should136 * send a fill command instead, much cheaper.137 *138 * See include/drm/drm_mode.h139 */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 256out_release_backoff:257 if (ret)258 qxl_release_backoff_reserve_list(release);259out_free_image:260 qxl_image_free_objects(qdev, dimage);261out_free_clips:262 qxl_bo_unref(&clips_bo);263out_free_drawable:264 /* only free drawable on error */265 if (ret)266 free_drawable(qdev, release);267 268}269