269 lines
7.8 KiB
C
269 lines
7.8 KiB
C
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/*
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* Copyright 2011 Red Hat, Inc.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* on the rights to use, copy, modify, merge, publish, distribute, sub
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* license, and/or sell copies of the Software, and to permit persons to whom
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* the Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
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* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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#include <linux/iosys-map.h>
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#include <drm/drm_fourcc.h>
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#include <drm/drm_framebuffer.h>
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#include "qxl_drv.h"
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#include "qxl_object.h"
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static int alloc_clips(struct qxl_device *qdev,
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struct qxl_release *release,
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unsigned int num_clips,
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struct qxl_bo **clips_bo)
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{
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int size = sizeof(struct qxl_clip_rects) + sizeof(struct qxl_rect) * num_clips;
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return qxl_alloc_bo_reserved(qdev, release, size, clips_bo);
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}
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/* returns a pointer to the already allocated qxl_rect array inside
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* the qxl_clip_rects. This is *not* the same as the memory allocated
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* on the device, it is offset to qxl_clip_rects.chunk.data */
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static struct qxl_rect *drawable_set_clipping(struct qxl_device *qdev,
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unsigned int num_clips,
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struct qxl_bo *clips_bo)
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{
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struct iosys_map map;
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struct qxl_clip_rects *dev_clips;
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int ret;
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ret = qxl_bo_vmap_locked(clips_bo, &map);
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if (ret)
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return NULL;
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dev_clips = map.vaddr; /* TODO: Use mapping abstraction properly */
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dev_clips->num_rects = num_clips;
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dev_clips->chunk.next_chunk = 0;
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dev_clips->chunk.prev_chunk = 0;
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dev_clips->chunk.data_size = sizeof(struct qxl_rect) * num_clips;
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return (struct qxl_rect *)dev_clips->chunk.data;
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}
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static int
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alloc_drawable(struct qxl_device *qdev, struct qxl_release **release)
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{
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return qxl_alloc_release_reserved(qdev, sizeof(struct qxl_drawable),
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QXL_RELEASE_DRAWABLE, release, NULL);
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}
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static void
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free_drawable(struct qxl_device *qdev, struct qxl_release *release)
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{
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qxl_release_free(qdev, release);
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}
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/* release needs to be reserved at this point */
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static int
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make_drawable(struct qxl_device *qdev, int surface, uint8_t type,
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const struct qxl_rect *rect,
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struct qxl_release *release)
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{
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struct qxl_drawable *drawable;
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int i;
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drawable = (struct qxl_drawable *)qxl_release_map(qdev, release);
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if (!drawable)
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return -ENOMEM;
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drawable->type = type;
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drawable->surface_id = surface; /* Only primary for now */
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drawable->effect = QXL_EFFECT_OPAQUE;
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drawable->self_bitmap = 0;
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drawable->self_bitmap_area.top = 0;
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drawable->self_bitmap_area.left = 0;
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drawable->self_bitmap_area.bottom = 0;
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drawable->self_bitmap_area.right = 0;
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/* FIXME: add clipping */
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drawable->clip.type = SPICE_CLIP_TYPE_NONE;
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/*
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* surfaces_dest[i] should apparently be filled out with the
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* surfaces that we depend on, and surface_rects should be
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* filled with the rectangles of those surfaces that we
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* are going to use.
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*/
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for (i = 0; i < 3; ++i)
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drawable->surfaces_dest[i] = -1;
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if (rect)
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drawable->bbox = *rect;
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drawable->mm_time = qdev->rom->mm_clock;
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qxl_release_unmap(qdev, release, &drawable->release_info);
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return 0;
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}
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/* push a draw command using the given clipping rectangles as
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* the sources from the shadow framebuffer.
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*
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* Right now implementing with a single draw and a clip list. Clip
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* lists are known to be a problem performance wise, this can be solved
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* by treating them differently in the server.
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*/
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void qxl_draw_dirty_fb(struct qxl_device *qdev,
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struct drm_framebuffer *fb,
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struct qxl_bo *bo,
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unsigned int flags, unsigned int color,
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struct drm_clip_rect *clips,
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unsigned int num_clips, int inc,
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uint32_t dumb_shadow_offset)
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{
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/*
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* TODO: if flags & DRM_MODE_FB_DIRTY_ANNOTATE_FILL then we should
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* send a fill command instead, much cheaper.
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*
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* See include/drm/drm_mode.h
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*/
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struct drm_clip_rect *clips_ptr;
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int i;
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int left, right, top, bottom;
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int width, height;
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struct qxl_drawable *drawable;
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struct qxl_rect drawable_rect;
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struct qxl_rect *rects;
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int stride = fb->pitches[0];
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/* depth is not actually interesting, we don't mask with it */
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int depth = fb->format->cpp[0] * 8;
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struct iosys_map surface_map;
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uint8_t *surface_base;
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struct qxl_release *release;
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struct qxl_bo *clips_bo;
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struct qxl_drm_image *dimage;
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int ret;
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ret = alloc_drawable(qdev, &release);
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if (ret)
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return;
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clips->x1 += dumb_shadow_offset;
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clips->x2 += dumb_shadow_offset;
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left = clips->x1;
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right = clips->x2;
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top = clips->y1;
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bottom = clips->y2;
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/* skip the first clip rect */
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for (i = 1, clips_ptr = clips + inc;
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i < num_clips; i++, clips_ptr += inc) {
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left = min_t(int, left, (int)clips_ptr->x1);
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right = max_t(int, right, (int)clips_ptr->x2);
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top = min_t(int, top, (int)clips_ptr->y1);
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bottom = max_t(int, bottom, (int)clips_ptr->y2);
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}
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width = right - left;
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height = bottom - top;
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ret = alloc_clips(qdev, release, num_clips, &clips_bo);
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if (ret)
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goto out_free_drawable;
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ret = qxl_image_alloc_objects(qdev, release,
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&dimage,
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height, stride);
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if (ret)
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goto out_free_clips;
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/* do a reservation run over all the objects we just allocated */
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ret = qxl_release_reserve_list(release, true);
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if (ret)
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goto out_free_image;
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drawable_rect.left = left;
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drawable_rect.right = right;
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drawable_rect.top = top;
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drawable_rect.bottom = bottom;
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ret = make_drawable(qdev, 0, QXL_DRAW_COPY, &drawable_rect,
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release);
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if (ret)
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goto out_release_backoff;
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ret = qxl_bo_vmap_locked(bo, &surface_map);
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if (ret)
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goto out_release_backoff;
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surface_base = surface_map.vaddr; /* TODO: Use mapping abstraction properly */
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ret = qxl_image_init(qdev, release, dimage, surface_base,
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left - dumb_shadow_offset,
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top, width, height, depth, stride);
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qxl_bo_vunmap_locked(bo);
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if (ret)
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goto out_release_backoff;
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rects = drawable_set_clipping(qdev, num_clips, clips_bo);
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if (!rects) {
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ret = -EINVAL;
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goto out_release_backoff;
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}
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drawable = (struct qxl_drawable *)qxl_release_map(qdev, release);
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drawable->clip.type = SPICE_CLIP_TYPE_RECTS;
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drawable->clip.data = qxl_bo_physical_address(qdev,
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clips_bo, 0);
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drawable->u.copy.src_area.top = 0;
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drawable->u.copy.src_area.bottom = height;
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drawable->u.copy.src_area.left = 0;
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drawable->u.copy.src_area.right = width;
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drawable->u.copy.rop_descriptor = SPICE_ROPD_OP_PUT;
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drawable->u.copy.scale_mode = 0;
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drawable->u.copy.mask.flags = 0;
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drawable->u.copy.mask.pos.x = 0;
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drawable->u.copy.mask.pos.y = 0;
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drawable->u.copy.mask.bitmap = 0;
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drawable->u.copy.src_bitmap = qxl_bo_physical_address(qdev, dimage->bo, 0);
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qxl_release_unmap(qdev, release, &drawable->release_info);
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clips_ptr = clips;
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for (i = 0; i < num_clips; i++, clips_ptr += inc) {
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rects[i].left = clips_ptr->x1;
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rects[i].right = clips_ptr->x2;
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rects[i].top = clips_ptr->y1;
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rects[i].bottom = clips_ptr->y2;
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}
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qxl_bo_vunmap_locked(clips_bo);
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qxl_release_fence_buffer_objects(release);
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qxl_push_command_ring_release(qdev, release, QXL_CMD_DRAW, false);
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out_release_backoff:
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if (ret)
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qxl_release_backoff_reserve_list(release);
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out_free_image:
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qxl_image_free_objects(qdev, dimage);
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out_free_clips:
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qxl_bo_unref(&clips_bo);
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out_free_drawable:
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/* only free drawable on error */
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if (ret)
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free_drawable(qdev, release);
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}
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