diff options
Diffstat (limited to 'drivers/gpu/drm/qxl/qxl_draw.c')
| -rw-r--r-- | drivers/gpu/drm/qxl/qxl_draw.c | 261 |
1 files changed, 261 insertions, 0 deletions
diff --git a/drivers/gpu/drm/qxl/qxl_draw.c b/drivers/gpu/drm/qxl/qxl_draw.c new file mode 100644 index 000000000..3599db096 --- /dev/null +++ b/drivers/gpu/drm/qxl/qxl_draw.c @@ -0,0 +1,261 @@ +/* + * Copyright 2011 Red Hat, Inc. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * on the rights to use, copy, modify, merge, publish, distribute, sub + * license, and/or sell copies of the Software, and to permit persons to whom + * the Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL + * THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER + * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ + +#include <drm/drm_fourcc.h> + +#include "qxl_drv.h" +#include "qxl_object.h" + +static int alloc_clips(struct qxl_device *qdev, + struct qxl_release *release, + unsigned int num_clips, + struct qxl_bo **clips_bo) +{ + int size = sizeof(struct qxl_clip_rects) + sizeof(struct qxl_rect) * num_clips; + + return qxl_alloc_bo_reserved(qdev, release, size, clips_bo); +} + +/* returns a pointer to the already allocated qxl_rect array inside + * the qxl_clip_rects. This is *not* the same as the memory allocated + * on the device, it is offset to qxl_clip_rects.chunk.data */ +static struct qxl_rect *drawable_set_clipping(struct qxl_device *qdev, + unsigned int num_clips, + struct qxl_bo *clips_bo) +{ + struct qxl_clip_rects *dev_clips; + int ret; + + ret = qxl_bo_kmap(clips_bo, (void **)&dev_clips); + if (ret) { + return NULL; + } + dev_clips->num_rects = num_clips; + dev_clips->chunk.next_chunk = 0; + dev_clips->chunk.prev_chunk = 0; + dev_clips->chunk.data_size = sizeof(struct qxl_rect) * num_clips; + return (struct qxl_rect *)dev_clips->chunk.data; +} + +static int +alloc_drawable(struct qxl_device *qdev, struct qxl_release **release) +{ + return qxl_alloc_release_reserved(qdev, sizeof(struct qxl_drawable), + QXL_RELEASE_DRAWABLE, release, NULL); +} + +static void +free_drawable(struct qxl_device *qdev, struct qxl_release *release) +{ + qxl_release_free(qdev, release); +} + +/* release needs to be reserved at this point */ +static int +make_drawable(struct qxl_device *qdev, int surface, uint8_t type, + const struct qxl_rect *rect, + struct qxl_release *release) +{ + struct qxl_drawable *drawable; + int i; + + drawable = (struct qxl_drawable *)qxl_release_map(qdev, release); + if (!drawable) + return -ENOMEM; + + drawable->type = type; + + drawable->surface_id = surface; /* Only primary for now */ + drawable->effect = QXL_EFFECT_OPAQUE; + drawable->self_bitmap = 0; + drawable->self_bitmap_area.top = 0; + drawable->self_bitmap_area.left = 0; + drawable->self_bitmap_area.bottom = 0; + drawable->self_bitmap_area.right = 0; + /* FIXME: add clipping */ + drawable->clip.type = SPICE_CLIP_TYPE_NONE; + + /* + * surfaces_dest[i] should apparently be filled out with the + * surfaces that we depend on, and surface_rects should be + * filled with the rectangles of those surfaces that we + * are going to use. + */ + for (i = 0; i < 3; ++i) + drawable->surfaces_dest[i] = -1; + + if (rect) + drawable->bbox = *rect; + + drawable->mm_time = qdev->rom->mm_clock; + qxl_release_unmap(qdev, release, &drawable->release_info); + return 0; +} + +/* push a draw command using the given clipping rectangles as + * the sources from the shadow framebuffer. + * + * Right now implementing with a single draw and a clip list. Clip + * lists are known to be a problem performance wise, this can be solved + * by treating them differently in the server. + */ +void qxl_draw_dirty_fb(struct qxl_device *qdev, + struct drm_framebuffer *fb, + struct qxl_bo *bo, + unsigned int flags, unsigned int color, + struct drm_clip_rect *clips, + unsigned int num_clips, int inc, + uint32_t dumb_shadow_offset) +{ + /* + * TODO: if flags & DRM_MODE_FB_DIRTY_ANNOTATE_FILL then we should + * send a fill command instead, much cheaper. + * + * See include/drm/drm_mode.h + */ + struct drm_clip_rect *clips_ptr; + int i; + int left, right, top, bottom; + int width, height; + struct qxl_drawable *drawable; + struct qxl_rect drawable_rect; + struct qxl_rect *rects; + int stride = fb->pitches[0]; + /* depth is not actually interesting, we don't mask with it */ + int depth = fb->format->cpp[0] * 8; + uint8_t *surface_base; + struct qxl_release *release; + struct qxl_bo *clips_bo; + struct qxl_drm_image *dimage; + int ret; + + ret = alloc_drawable(qdev, &release); + if (ret) + return; + + clips->x1 += dumb_shadow_offset; + clips->x2 += dumb_shadow_offset; + + left = clips->x1; + right = clips->x2; + top = clips->y1; + bottom = clips->y2; + + /* skip the first clip rect */ + for (i = 1, clips_ptr = clips + inc; + i < num_clips; i++, clips_ptr += inc) { + left = min_t(int, left, (int)clips_ptr->x1); + right = max_t(int, right, (int)clips_ptr->x2); + top = min_t(int, top, (int)clips_ptr->y1); + bottom = max_t(int, bottom, (int)clips_ptr->y2); + } + + width = right - left; + height = bottom - top; + + ret = alloc_clips(qdev, release, num_clips, &clips_bo); + if (ret) + goto out_free_drawable; + + ret = qxl_image_alloc_objects(qdev, release, + &dimage, + height, stride); + if (ret) + goto out_free_clips; + + /* do a reservation run over all the objects we just allocated */ + ret = qxl_release_reserve_list(release, true); + if (ret) + goto out_free_image; + + drawable_rect.left = left; + drawable_rect.right = right; + drawable_rect.top = top; + drawable_rect.bottom = bottom; + + ret = make_drawable(qdev, 0, QXL_DRAW_COPY, &drawable_rect, + release); + if (ret) + goto out_release_backoff; + + ret = qxl_bo_kmap(bo, (void **)&surface_base); + if (ret) + goto out_release_backoff; + + ret = qxl_image_init(qdev, release, dimage, surface_base, + left - dumb_shadow_offset, + top, width, height, depth, stride); + qxl_bo_kunmap(bo); + if (ret) + goto out_release_backoff; + + rects = drawable_set_clipping(qdev, num_clips, clips_bo); + if (!rects) { + ret = -EINVAL; + goto out_release_backoff; + } + drawable = (struct qxl_drawable *)qxl_release_map(qdev, release); + + drawable->clip.type = SPICE_CLIP_TYPE_RECTS; + drawable->clip.data = qxl_bo_physical_address(qdev, + clips_bo, 0); + + drawable->u.copy.src_area.top = 0; + drawable->u.copy.src_area.bottom = height; + drawable->u.copy.src_area.left = 0; + drawable->u.copy.src_area.right = width; + + drawable->u.copy.rop_descriptor = SPICE_ROPD_OP_PUT; + drawable->u.copy.scale_mode = 0; + drawable->u.copy.mask.flags = 0; + drawable->u.copy.mask.pos.x = 0; + drawable->u.copy.mask.pos.y = 0; + drawable->u.copy.mask.bitmap = 0; + + drawable->u.copy.src_bitmap = qxl_bo_physical_address(qdev, dimage->bo, 0); + qxl_release_unmap(qdev, release, &drawable->release_info); + + clips_ptr = clips; + for (i = 0; i < num_clips; i++, clips_ptr += inc) { + rects[i].left = clips_ptr->x1; + rects[i].right = clips_ptr->x2; + rects[i].top = clips_ptr->y1; + rects[i].bottom = clips_ptr->y2; + } + qxl_bo_kunmap(clips_bo); + + qxl_release_fence_buffer_objects(release); + qxl_push_command_ring_release(qdev, release, QXL_CMD_DRAW, false); + +out_release_backoff: + if (ret) + qxl_release_backoff_reserve_list(release); +out_free_image: + qxl_image_free_objects(qdev, dimage); +out_free_clips: + qxl_bo_unref(&clips_bo); +out_free_drawable: + /* only free drawable on error */ + if (ret) + free_drawable(qdev, release); + +} |