/*
* 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 <linux/iosys-map.h>
#include <drm/drm_fourcc.h>
#include <drm/drm_framebuffer.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 iosys_map map;
struct qxl_clip_rects *dev_clips;
int ret;
ret = qxl_bo_vmap_locked(clips_bo, &map);
if (ret)
return NULL;
dev_clips = map.vaddr; /* TODO: Use mapping abstraction properly */
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 ;
struct iosys_map surface_map;
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_vmap_locked(bo, &surface_map);
if (ret)
goto out_release_backoff;
surface_base = surface_map.vaddr; /* TODO: Use mapping abstraction properly */
ret = qxl_image_init(qdev, release, dimage, surface_base,
left - dumb_shadow_offset,
top, width, height, depth, stride);
qxl_bo_vunmap_locked(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_vunmap_locked(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);
}
Messung V0.5 in Prozent C=95 H=82 G=88
¤ Dauer der Verarbeitung: 0.11 Sekunden
(vorverarbeitet am 2026-09-27)
¤
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