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/*
* 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/dma-buf-map.h>
#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 dma_buf_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 dma_buf_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);
}
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