[linux-block.git] / drivers / gpu / drm / qxl / qxl_draw.c

/*
 * 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 "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);

}
Commit	Line	Data
f64122c1 DA	1	/*
	2	* Copyright 2011 Red Hat, Inc.
	3	*
	4	* Permission is hereby granted, free of charge, to any person obtaining a
	5	* copy of this software and associated documentation files (the "Software"),
	6	* to deal in the Software without restriction, including without limitation
	7	* on the rights to use, copy, modify, merge, publish, distribute, sub
	8	* license, and/or sell copies of the Software, and to permit persons to whom
	9	* the Software is furnished to do so, subject to the following conditions:
	10	*
	11	* The above copyright notice and this permission notice (including the next
	12	* paragraph) shall be included in all copies or substantial portions of the
	13	* Software.
	14	*
	15	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
	16	* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
	17	* FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
	18	* THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
	19	* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
	20	* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
	21	*/
	22
7938f421	23	#include <linux/iosys-map.h>
49a3f51d	24
c0f4b75c SR	25	#include <drm/drm_fourcc.h>
c0f4b75c SR	26
f64122c1 DA	27	#include "qxl_drv.h"
	28	#include "qxl_object.h"
	29
8002db63 DA	30	static int alloc_clips(struct qxl_device *qdev,
8002db63 DA	31	struct qxl_release *release,
1b000494	32	unsigned int num_clips,
8002db63 DA	33	struct qxl_bo **clips_bo)
	34	{
	35	int size = sizeof(struct qxl_clip_rects) + sizeof(struct qxl_rect) * num_clips;
	36
	37	return qxl_alloc_bo_reserved(qdev, release, size, clips_bo);
	38	}
	39
f64122c1 DA	40	/* returns a pointer to the already allocated qxl_rect array inside
	41	* the qxl_clip_rects. This is not the same as the memory allocated
	42	* on the device, it is offset to qxl_clip_rects.chunk.data */
	43	static struct qxl_rect drawable_set_clipping(struct qxl_device qdev,
1b000494	44	unsigned int num_clips,
8002db63	45	struct qxl_bo *clips_bo)
f64122c1	46	{
7938f421	47	struct iosys_map map;
f64122c1 DA	48	struct qxl_clip_rects *dev_clips;
f64122c1 DA	49	int ret;
f64122c1	50
f7ed28e1	51	ret = qxl_bo_vmap_locked(clips_bo, &map);
49a3f51d	52	if (ret)
f64122c1	53	return NULL;
49a3f51d TZ	54	dev_clips = map.vaddr; /* TODO: Use mapping abstraction properly */
49a3f51d TZ	55
f64122c1 DA	56	dev_clips->num_rects = num_clips;
	57	dev_clips->chunk.next_chunk = 0;
	58	dev_clips->chunk.prev_chunk = 0;
	59	dev_clips->chunk.data_size = sizeof(struct qxl_rect) * num_clips;
	60	return (struct qxl_rect *)dev_clips->chunk.data;
	61	}
	62
8002db63 DA	63	static int
	64	alloc_drawable(struct qxl_device qdev, struct qxl_release *release)
	65	{
96c594ba MY	66	return qxl_alloc_release_reserved(qdev, sizeof(struct qxl_drawable),
96c594ba MY	67	QXL_RELEASE_DRAWABLE, release, NULL);
8002db63 DA	68	}
	69
	70	static void
	71	free_drawable(struct qxl_device qdev, struct qxl_release release)
	72	{
	73	qxl_release_free(qdev, release);
	74	}
	75
	76	/* release needs to be reserved at this point */
f64122c1 DA	77	static int
	78	make_drawable(struct qxl_device *qdev, int surface, uint8_t type,
	79	const struct qxl_rect *rect,
8002db63	80	struct qxl_release *release)
f64122c1 DA	81	{
f64122c1 DA	82	struct qxl_drawable *drawable;
8002db63	83	int i;
f64122c1	84
8002db63 DA	85	drawable = (struct qxl_drawable *)qxl_release_map(qdev, release);
	86	if (!drawable)
	87	return -ENOMEM;
f64122c1	88
f64122c1 DA	89	drawable->type = type;
	90
	91	drawable->surface_id = surface; /* Only primary for now */
	92	drawable->effect = QXL_EFFECT_OPAQUE;
	93	drawable->self_bitmap = 0;
	94	drawable->self_bitmap_area.top = 0;
	95	drawable->self_bitmap_area.left = 0;
	96	drawable->self_bitmap_area.bottom = 0;
	97	drawable->self_bitmap_area.right = 0;
	98	/* FIXME: add clipping */
	99	drawable->clip.type = SPICE_CLIP_TYPE_NONE;
	100
	101	/*
	102	* surfaces_dest[i] should apparently be filled out with the
	103	* surfaces that we depend on, and surface_rects should be
	104	* filled with the rectangles of those surfaces that we
	105	* are going to use.
	106	*/
	107	for (i = 0; i < 3; ++i)
	108	drawable->surfaces_dest[i] = -1;
	109
	110	if (rect)
	111	drawable->bbox = *rect;
	112
	113	drawable->mm_time = qdev->rom->mm_clock;
8002db63	114	qxl_release_unmap(qdev, release, &drawable->release_info);
f64122c1 DA	115	return 0;
	116	}
	117
f64122c1 DA	118	/* push a draw command using the given clipping rectangles as
	119	* the sources from the shadow framebuffer.
	120	*
	121	* Right now implementing with a single draw and a clip list. Clip
	122	* lists are known to be a problem performance wise, this can be solved
	123	* by treating them differently in the server.
	124	*/
	125	void qxl_draw_dirty_fb(struct qxl_device *qdev,
bf8744e4	126	struct drm_framebuffer *fb,
f64122c1	127	struct qxl_bo *bo,
1b000494	128	unsigned int flags, unsigned int color,
f64122c1	129	struct drm_clip_rect *clips,
90adda2c GH	130	unsigned int num_clips, int inc,
90adda2c GH	131	uint32_t dumb_shadow_offset)
f64122c1 DA	132	{
	133	/*
	134	* TODO: if flags & DRM_MODE_FB_DIRTY_ANNOTATE_FILL then we should
	135	* send a fill command instead, much cheaper.
	136	*
	137	* See include/drm/drm_mode.h
	138	*/
	139	struct drm_clip_rect *clips_ptr;
	140	int i;
	141	int left, right, top, bottom;
	142	int width, height;
	143	struct qxl_drawable *drawable;
	144	struct qxl_rect drawable_rect;
	145	struct qxl_rect *rects;
bf8744e4	146	int stride = fb->pitches[0];
f64122c1	147	/* depth is not actually interesting, we don't mask with it */
bf8744e4	148	int depth = fb->format->cpp[0] * 8;
7938f421	149	struct iosys_map surface_map;
f64122c1 DA	150	uint8_t *surface_base;
f64122c1 DA	151	struct qxl_release *release;
f64122c1	152	struct qxl_bo *clips_bo;
8002db63	153	struct qxl_drm_image *dimage;
f64122c1 DA	154	int ret;
f64122c1 DA	155
8002db63 DA	156	ret = alloc_drawable(qdev, &release);
	157	if (ret)
	158	return;
	159
90adda2c GH	160	clips->x1 += dumb_shadow_offset;
	161	clips->x2 += dumb_shadow_offset;
	162
f64122c1 DA	163	left = clips->x1;
	164	right = clips->x2;
	165	top = clips->y1;
	166	bottom = clips->y2;
	167
	168	/* skip the first clip rect */
	169	for (i = 1, clips_ptr = clips + inc;
	170	i < num_clips; i++, clips_ptr += inc) {
	171	left = min_t(int, left, (int)clips_ptr->x1);
	172	right = max_t(int, right, (int)clips_ptr->x2);
	173	top = min_t(int, top, (int)clips_ptr->y1);
	174	bottom = max_t(int, bottom, (int)clips_ptr->y2);
	175	}
	176
	177	width = right - left;
	178	height = bottom - top;
8002db63 DA	179
	180	ret = alloc_clips(qdev, release, num_clips, &clips_bo);
	181	if (ret)
	182	goto out_free_drawable;
	183
	184	ret = qxl_image_alloc_objects(qdev, release,
	185	&dimage,
	186	height, stride);
	187	if (ret)
	188	goto out_free_clips;
	189
	190	/* do a reservation run over all the objects we just allocated */
	191	ret = qxl_release_reserve_list(release, true);
	192	if (ret)
	193	goto out_free_image;
	194
f64122c1 DA	195	drawable_rect.left = left;
	196	drawable_rect.right = right;
	197	drawable_rect.top = top;
	198	drawable_rect.bottom = bottom;
8002db63	199
f64122c1	200	ret = make_drawable(qdev, 0, QXL_DRAW_COPY, &drawable_rect,
8002db63	201	release);
f64122c1	202	if (ret)
8002db63	203	goto out_release_backoff;
f64122c1	204
f7ed28e1	205	ret = qxl_bo_vmap_locked(bo, &surface_map);
f64122c1	206	if (ret)
8002db63	207	goto out_release_backoff;
49a3f51d	208	surface_base = surface_map.vaddr; /* TODO: Use mapping abstraction properly */
f64122c1	209
8002db63	210	ret = qxl_image_init(qdev, release, dimage, surface_base,
90adda2c GH	211	left - dumb_shadow_offset,
90adda2c GH	212	top, width, height, depth, stride);
f7ed28e1	213	qxl_bo_vunmap_locked(bo);
f64122c1	214	if (ret)
8002db63 DA	215	goto out_release_backoff;
8002db63 DA	216
6566435a	217	rects = drawable_set_clipping(qdev, num_clips, clips_bo);
85e9b88a VA	218	if (!rects) {
85e9b88a VA	219	ret = -EINVAL;
8002db63	220	goto out_release_backoff;
85e9b88a	221	}
f64122c1 DA	222	drawable = (struct qxl_drawable *)qxl_release_map(qdev, release);
	223
	224	drawable->clip.type = SPICE_CLIP_TYPE_RECTS;
	225	drawable->clip.data = qxl_bo_physical_address(qdev,
	226	clips_bo, 0);
f64122c1 DA	227
	228	drawable->u.copy.src_area.top = 0;
	229	drawable->u.copy.src_area.bottom = height;
	230	drawable->u.copy.src_area.left = 0;
	231	drawable->u.copy.src_area.right = width;
	232
	233	drawable->u.copy.rop_descriptor = SPICE_ROPD_OP_PUT;
	234	drawable->u.copy.scale_mode = 0;
	235	drawable->u.copy.mask.flags = 0;
	236	drawable->u.copy.mask.pos.x = 0;
	237	drawable->u.copy.mask.pos.y = 0;
	238	drawable->u.copy.mask.bitmap = 0;
	239
8002db63	240	drawable->u.copy.src_bitmap = qxl_bo_physical_address(qdev, dimage->bo, 0);
f64122c1	241	qxl_release_unmap(qdev, release, &drawable->release_info);
8002db63	242
f64122c1 DA	243	clips_ptr = clips;
	244	for (i = 0; i < num_clips; i++, clips_ptr += inc) {
	245	rects[i].left = clips_ptr->x1;
	246	rects[i].right = clips_ptr->x2;
	247	rects[i].top = clips_ptr->y1;
	248	rects[i].bottom = clips_ptr->y2;
	249	}
f7ed28e1	250	qxl_bo_vunmap_locked(clips_bo);
f64122c1	251
8002db63	252	qxl_release_fence_buffer_objects(release);
933db733	253	qxl_push_command_ring_release(qdev, release, QXL_CMD_DRAW, false);
8002db63 DA	254
	255	out_release_backoff:
	256	if (ret)
	257	qxl_release_backoff_reserve_list(release);
	258	out_free_image:
	259	qxl_image_free_objects(qdev, dimage);
	260	out_free_clips:
	261	qxl_bo_unref(&clips_bo);
	262	out_free_drawable:
	263	/* only free drawable on error */
	264	if (ret)
	265	free_drawable(qdev, release);
f64122c1	266
f64122c1	267	}