path: root/src/sna/sna_video_textured.c

/***************************************************************************

 Copyright 2000-2011 Intel Corporation.  All Rights Reserved.

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 copy of this software and associated documentation files (the
 "Software"), to deal in the Software without restriction, including
 without limitation the rights to use, copy, modify, merge, publish,
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 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.

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 OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
 IN NO EVENT SHALL INTEL, AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
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 THE USE OR OTHER DEALINGS IN THE SOFTWARE.

 **************************************************************************/

#ifdef HAVE_CONFIG_H
#include "config.h"
#endif

#include "sna.h"
#include "sna_video.h"

#include <xf86xv.h>
#include <X11/extensions/Xv.h>

#ifdef SNA_XVMC
#define _SNA_XVMC_SERVER_
#include "sna_video_hwmc.h"
#endif

#if DEBUG_VIDEO_TEXTURED
#undef DBG
#define DBG(x) ErrorF x
#endif

#define MAKE_ATOM(a) MakeAtom(a, sizeof(a) - 1, TRUE)

static Atom xvBrightness, xvContrast, xvSyncToVblank;

#define NUM_FORMATS 3

static XF86VideoFormatRec Formats[NUM_FORMATS] = {
	{15, TrueColor}, {16, TrueColor}, {24, TrueColor}
};

//#define NUM_TEXTURED_ATTRIBUTES 3
#define NUM_TEXTURED_ATTRIBUTES 1
static XF86AttributeRec TexturedAttributes[] = {
	{XvSettable | XvGettable, -1, 1, "XV_SYNC_TO_VBLANK"},
	{XvSettable | XvGettable, -128, 127, "XV_BRIGHTNESS"},
	{XvSettable | XvGettable, 0, 255, "XV_CONTRAST"},
};

#ifdef SNA_XVMC
#define NUM_IMAGES 5
#define XVMC_IMAGE 1
#else
#define NUM_IMAGES 4
#define XVMC_IMAGE 0
#endif

static XF86ImageRec Images[NUM_IMAGES] = {
	XVIMAGE_YUY2,
	XVIMAGE_YV12,
	XVIMAGE_I420,
	XVIMAGE_UYVY,
#ifdef SNA_XVMC
	{
		/*
		 * Below, a dummy picture type that is used in XvPutImage
		 * only to do an overlay update.
		 * Introduced for the XvMC client lib.
		 * Defined to have a zero data size.
		 */
		FOURCC_XVMC,
		XvYUV,
		LSBFirst,
		{'X', 'V', 'M', 'C',
			0x00, 0x00, 0x00, 0x10, 0x80, 0x00, 0x00, 0xAA, 0x00,
			0x38, 0x9B, 0x71},
		12,
		XvPlanar,
		3,
		0, 0, 0, 0,
		8, 8, 8,
		1, 2, 2,
		1, 2, 2,
		{'Y', 'V', 'U',
			0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
			0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
		XvTopToBottom},
#endif
};

static int xvmc_passthrough(int id)
{
#ifdef SNA_XVMC
	return id == FOURCC_XVMC;
#else
	return 0;
	(void)id;
#endif
}

static void sna_video_textured_stop(ScrnInfoPtr scrn,
				    pointer data,
				    Bool shutdown)
{
	struct sna *sna = to_sna(scrn);
	struct sna_video *video = data;

	DBG(("%s()\n", __FUNCTION__));

	REGION_EMPTY(scrn->pScreen, &video->clip);

	if (!shutdown)
		return;

	sna_video_free_buffers(sna, video);
}

static int
sna_video_textured_set_attribute(ScrnInfoPtr scrn,
				 Atom attribute,
				 INT32 value,
				 pointer data)
{
	struct sna_video *video = data;

	if (attribute == xvBrightness) {
		if (value < -128 || value > 127)
			return BadValue;

		video->brightness = value;
	} else if (attribute == xvContrast) {
		if (value < 0 || value > 255)
			return BadValue;

		video->contrast = value;
	} else if (attribute == xvSyncToVblank) {
		if (value < -1 || value > 1)
			return BadValue;

		video->SyncToVblank = value;
	} else
		return BadMatch;

	return Success;
}

static int
sna_video_textured_get_attribute(ScrnInfoPtr scrn,
				 Atom attribute,
				 INT32 *value,
				 pointer data)
{
	struct sna_video *video = data;

	if (attribute == xvBrightness)
		*value = video->brightness;
	else if (attribute == xvContrast)
		*value = video->contrast;
	else if (attribute == xvSyncToVblank)
		*value = video->SyncToVblank;
	else
		return BadMatch;

	return Success;
}

static void
sna_video_textured_best_size(ScrnInfoPtr scrn,
			     Bool motion,
			     short vid_w, short vid_h,
			     short drw_w, short drw_h,
			     unsigned int *p_w,
			     unsigned int *p_h,
			     pointer data)
{
	if (vid_w > (drw_w << 1))
		drw_w = vid_w >> 1;
	if (vid_h > (drw_h << 1))
		drw_h = vid_h >> 1;

	*p_w = drw_w;
	*p_h = drw_h;
}

/*
 * The source rectangle of the video is defined by (src_x, src_y, src_w, src_h).
 * The dest rectangle of the video is defined by (drw_x, drw_y, drw_w, drw_h).
 * id is a fourcc code for the format of the video.
 * buf is the pointer to the source data in system memory.
 * width and height are the w/h of the source data.
 * If "sync" is TRUE, then we must be finished with *buf at the point of return
 * (which we always are).
 * clip is the clipping region in screen space.
 * data is a pointer to our port private.
 * drawable is some Drawable, which might not be the screen in the case of
 * compositing.  It's a new argument to the function in the 1.1 server.
 */
static int
sna_video_textured_put_image(ScrnInfoPtr scrn,
			     short src_x, short src_y,
			     short drw_x, short drw_y,
			     short src_w, short src_h,
			     short drw_w, short drw_h,
			     int id, unsigned char *buf,
			     short width, short height,
			     Bool sync, RegionPtr clip, pointer data,
			     DrawablePtr drawable)
{
	struct sna *sna = to_sna(scrn);
	struct sna_video *video = data;
	struct sna_video_frame frame;
	PixmapPtr pixmap = get_drawable_pixmap(drawable);
	BoxRec dstBox;
	xf86CrtcPtr crtc;
	Bool flush = false;

	if (!sna_pixmap(pixmap))
		return BadAlloc;

	sna_video_frame_init(sna, video, id, width, height, &frame);

	if (!sna_video_clip_helper(scrn, video, &frame,
				   &crtc, &dstBox,
				   src_x, src_y, drw_x, drw_y,
				   src_w, src_h, drw_w, drw_h,
				   clip))
		return Success;

	if (xvmc_passthrough(id)) {
		if (IS_I915G(sna) || IS_I915GM(sna)) {
			/* XXX: i915 is not support and needs some
			 * serious care.  grep for KMS in i915_hwmc.c */
			return BadAlloc;
		}

		frame.bo = kgem_create_for_name(&sna->kgem, *(uint32_t*)buf);
		if (frame.bo == NULL)
			return BadAlloc;
	} else {
		frame.bo = kgem_create_linear(&sna->kgem, frame.size);
		if (frame.bo == NULL)
			return BadAlloc;

		if (!sna_video_copy_data(sna, video, &frame, buf)) {
			kgem_bo_destroy(&sna->kgem, frame.bo);
			return BadAlloc;
		}
	}

	if (crtc && video->SyncToVblank != 0)
		flush = sna_wait_for_scanline(sna, pixmap, crtc,
					      &clip->extents);

	sna->render.video(sna, video, &frame, clip,
			  src_w, src_h,
			  drw_w, drw_h,
			  pixmap);

	kgem_bo_destroy(&sna->kgem, frame.bo);

	DamageDamageRegion(drawable, clip);

	/* Push the frame to the GPU as soon as possible so
	 * we can hit the next vsync.
	 */
	if (flush)
		kgem_submit(&sna->kgem);

	return Success;
}

static int
sna_video_textured_query(ScrnInfoPtr scrn,
			 int id,
			 unsigned short *w, unsigned short *h,
			 int *pitches, int *offsets)
{
	int size, tmp;

	if (*w > 8192)
		*w = 8192;
	if (*h > 8192)
		*h = 8192;

	*w = (*w + 1) & ~1;
	if (offsets)
		offsets[0] = 0;

	switch (id) {
		/* IA44 is for XvMC only */
	case FOURCC_IA44:
	case FOURCC_AI44:
		if (pitches)
			pitches[0] = *w;
		size = *w * *h;
		break;
	case FOURCC_YV12:
	case FOURCC_I420:
		*h = (*h + 1) & ~1;
		size = (*w + 3) & ~3;
		if (pitches)
			pitches[0] = size;
		size *= *h;
		if (offsets)
			offsets[1] = size;
		tmp = ((*w >> 1) + 3) & ~3;
		if (pitches)
			pitches[1] = pitches[2] = tmp;
		tmp *= (*h >> 1);
		size += tmp;
		if (offsets)
			offsets[2] = size;
		size += tmp;
		break;
	case FOURCC_UYVY:
	case FOURCC_YUY2:
	default:
		size = *w << 1;
		if (pitches)
			pitches[0] = size;
		size *= *h;
		break;
#ifdef SNA_XVMC
	case FOURCC_XVMC:
		*h = (*h + 1) & ~1;
		size = sizeof(struct sna_xvmc_command);
		if (pitches)
			pitches[0] = size;
		break;
#endif
	}

	return size;
}

XF86VideoAdaptorPtr sna_video_textured_setup(struct sna *sna,
					     ScreenPtr screen)
{
	XF86VideoAdaptorPtr adaptor;
	XF86AttributePtr attrs;
	struct sna_video *video;
	DevUnion *devUnions;
	int nports = 16, i;

	if (!sna->render.video) {
		xf86DrvMsg(sna->scrn->scrnIndex, X_WARNING,
			   "Textured video not supported on this hardware\n");
		return NULL;
	}

	if (sna->kgem.wedged) {
		xf86DrvMsg(sna->scrn->scrnIndex, X_WARNING,
			   "cannot enable XVideo whilst the GPU is wedged\n");
		return FALSE;
	}

	adaptor = calloc(1, sizeof(XF86VideoAdaptorRec));
	video = calloc(nports, sizeof(struct sna_video));
	devUnions = calloc(nports, sizeof(DevUnion));
#if NUM_TEXTURED_ATTRIBUTES
	attrs = calloc(NUM_TEXTURED_ATTRIBUTES, sizeof(XF86AttributeRec));
	if (adaptor == NULL ||
	    video == NULL ||
	    devUnions == NULL ||
	    attrs == NULL) {
		free(adaptor);
		free(video);
		free(devUnions);
		free(attrs);
		return NULL;
	}
#else
	if (adaptor == NULL || video == NULL || devUnions == NULL) {
		free(adaptor);
		free(video);
		free(devUnions);
		return NULL;
	}
	attrs = NULL;
#endif

	adaptor->type = XvWindowMask | XvInputMask | XvImageMask;
	adaptor->flags = 0;
	adaptor->name = "Intel(R) Textured Video";
	adaptor->nEncodings = 1;
	adaptor->pEncodings = xnfalloc(sizeof(XF86VideoEncodingRec));
	adaptor->pEncodings[0].id = 0;
	adaptor->pEncodings[0].name = "XV_IMAGE";
	adaptor->pEncodings[0].width = sna->render.max_3d_size;
	adaptor->pEncodings[0].height = sna->render.max_3d_size;
	adaptor->pEncodings[0].rate.numerator = 1;
	adaptor->pEncodings[0].rate.denominator = 1;
	adaptor->nFormats = NUM_FORMATS;
	adaptor->pFormats = Formats;
	adaptor->nPorts = nports;
	adaptor->pPortPrivates = devUnions;
	adaptor->nAttributes = NUM_TEXTURED_ATTRIBUTES;
	adaptor->pAttributes = attrs;
	memcpy(attrs, TexturedAttributes,
	       NUM_TEXTURED_ATTRIBUTES * sizeof(XF86AttributeRec));
	adaptor->nImages = NUM_IMAGES;
	adaptor->pImages = Images;
	adaptor->PutVideo = NULL;
	adaptor->PutStill = NULL;
	adaptor->GetVideo = NULL;
	adaptor->GetStill = NULL;
	adaptor->StopVideo = sna_video_textured_stop;
	adaptor->SetPortAttribute = sna_video_textured_set_attribute;
	adaptor->GetPortAttribute = sna_video_textured_get_attribute;
	adaptor->QueryBestSize = sna_video_textured_best_size;
	adaptor->PutImage = sna_video_textured_put_image;
	adaptor->QueryImageAttributes = sna_video_textured_query;

	for (i = 0; i < nports; i++) {
		struct sna_video *v = &video[i];

		v->textured = TRUE;
		v->rotation = RR_Rotate_0;
		v->SyncToVblank = 1;

		/* gotta uninit this someplace, XXX: shouldn't be necessary for textured */
		RegionNull(&v->clip);

		adaptor->pPortPrivates[i].ptr = v;
	}

	xvBrightness = MAKE_ATOM("XV_BRIGHTNESS");
	xvContrast = MAKE_ATOM("XV_CONTRAST");
	xvSyncToVblank = MAKE_ATOM("XV_SYNC_TO_VBLANK");

	return adaptor;
}