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IABSD.fr/xenocara/driver/xf86-video-vmware/vmwgfx/vmwgfx_tex_video.c

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  • Author : matthieu
    Date : 2022-06-28 10:09:44
    Hash : eaba5413
    Message : Update to xf86-video-vmware 13.3.0

  • driver/xf86-video-vmware/vmwgfx/vmwgfx_tex_video.c
  • /*
     * Copyright 2009-2011 VMWare, Inc.
     * All Rights Reserved.
     *
     * 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 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 TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS 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.
     *
     * Author: Thomas Hellstrom <thellstrom@vmware.com>
     * Author: Zack Rusin <zackr@vmware.com>
     */
    #ifdef HAVE_CONFIG_H
    #include "config.h"
    #endif
    
    #include "vmwgfx_driver.h"
    #include "vmwgfx_drmi.h"
    #include "vmwgfx_saa.h"
    #include "../src/common_compat.h"
    
    #include <xf86xv.h>
    #include <X11/extensions/Xv.h>
    #include <fourcc.h>
    #include <xa_tracker.h>
    #include <xa_context.h>
    #include <math.h>
    
    static CONST_ABI_16_0 char xv_adapt_name[] = "XA G3D Textured Video";
    
    /*Xxx get these from pipe's texture limits */
    #define IMAGE_MAX_WIDTH		2048
    #define IMAGE_MAX_HEIGHT	2048
    
    #define RES_720P_X 1280
    #define RES_720P_Y 720
    
    
    #define MAKE_ATOM(a) MakeAtom(a, sizeof(a) - 1, TRUE)
    
    /*
     * ITU-R BT.601, BT.709 transfer matrices.
     * [R', G', B'] values are in the range [0, 1], Y' is in the range [0,1]
     * and [Pb, Pr] components are in the range [-0.5, 0.5].
     *
     * The matrices are transposed to fit the xa conversion matrix format.
     */
    
    static const float bt_601[] = {
        1.f, 1.f, 1.f, 0.f,
        0.f, -0.344136f, 1.772f, 0.f,
        1.402f,  -0.714136f, 0.f, 0.f
    };
    
    static const float bt_709[] = {
        1.f, 1.f, 1.f, 0.f,
        0.f, -0.187324f, 1.8556f, 0.f,
        1.5748f, -0.468124f, 0.f, 0.f
    };
    
    static Atom xvBrightness, xvContrast, xvSaturation, xvHue;
    static CONST_ABI_16_TO_19 char xv_brightness_name[] = "XV_BRIGHTNESS";
    static CONST_ABI_16_TO_19 char xv_contrast_name[] = "XV_CONTRAST";
    static CONST_ABI_16_TO_19 char xv_saturation_name[] = "XV_SATURATION";
    static CONST_ABI_16_TO_19 char xv_hue_name[] = "XV_HUE";
    static CONST_ABI_16_TO_19 char xv_image_name[] = "XV_IMAGE";
    
    #define NUM_TEXTURED_ATTRIBUTES 4
    static const XF86AttributeRec TexturedAttributes[NUM_TEXTURED_ATTRIBUTES] = {
        {XvSettable | XvGettable, -1000, 1000, xv_brightness_name},
        {XvSettable | XvGettable, -1000, 1000, xv_contrast_name},
        {XvSettable | XvGettable, -1000, 1000, xv_saturation_name},
        {XvSettable | XvGettable, -1000, 1000, xv_hue_name}
    };
    
    #define NUM_FORMATS 3
    static XF86VideoFormatRec Formats[NUM_FORMATS] = {
       {15, TrueColor}, {16, TrueColor}, {24, TrueColor}
    };
    
    static XF86VideoEncodingRec DummyEncoding[1] = {
       {
          0,
          xv_image_name,
          IMAGE_MAX_WIDTH, IMAGE_MAX_HEIGHT,
          {1, 1}
       }
    };
    
    #define NUM_IMAGES 3
    static XF86ImageRec Images[NUM_IMAGES] = {
       XVIMAGE_UYVY,
       XVIMAGE_YUY2,
       XVIMAGE_YV12,
    };
    
    struct xorg_xv_port_priv {
        struct xa_tracker *xat;
        struct xa_context *r;
        struct xa_fence *fence;
    
        RegionRec clip;
    
        int brightness;
        int contrast;
        int saturation;
        int hue;
    
        int current_set;
        struct xa_surface *yuv[2][3];
    
        struct xa_surface *bounce;
        struct xa_box bounce_box;
        struct xa_picture *src_pic;
        struct xa_picture *dst_pic;
        struct xa_composite *comp;
    
        int drm_fd;
    
        Bool hdtv;
        float uv_offset;
        float uv_scale;
        float y_offset;
        float y_scale;
        float rgb_offset;
        float rgb_scale;
        float sinhue;
        float coshue;
        float cm[16];
    };
    
    /*
     * vmwgfx_update_conversion_matrix - Compute the effective color conversion
     * matrix.
     *
     * Applies yuv- and resulting rgb scales and offsets to compute the correct
     * color conversion matrix. These scales and offsets are properties of the
     * video stream and can be adjusted using XV properties as well.
     */
    static void
    vmwgfx_update_conversion_matrix(struct xorg_xv_port_priv *priv)
    {
        int i;
        float *cm = priv->cm;
        static const float *bt;
    
        bt = (priv->hdtv) ? bt_709 : bt_601;
    
        memcpy(cm, bt, sizeof(bt_601));
    
        /*
         * Apply hue rotation
         */
        cm[4] = priv->coshue * bt[4] - priv->sinhue * bt[8];
        cm[8] = priv->sinhue * bt[4] + priv->coshue * bt[8];
        cm[5] = priv->coshue * bt[5] - priv->sinhue * bt[9];
        cm[9] = priv->sinhue * bt[5] + priv->coshue * bt[9];
        cm[6] = priv->coshue * bt[6] - priv->sinhue * bt[10];
        cm[10] = priv->sinhue * bt[6] + priv->coshue * bt[10];
    
        /*
         * Adjust for yuv scales in input and rgb scale in the converted output.
         */
        for(i = 0; i < 3; ++i) {
    	cm[i] *= (priv->y_scale*priv->rgb_scale);
    	cm[i+4] *= (priv->uv_scale*priv->rgb_scale);
    	cm[i+8] *= (priv->uv_scale*priv->rgb_scale);
        }
    
        /*
         * Adjust for yuv offsets in input and rgb offset in the converted output.
         */
        for (i = 0; i < 3; ++i)
    	cm[i+12] = -cm[i]*priv->y_offset - (cm[i+4] + cm[i+8])*priv->uv_offset
    	    - priv->rgb_offset*priv->rgb_scale;
    
        /*
         * Alpha is 1, unconditionally.
         */
        cm[15] = 1.f;
    }
    
    /**
     * vmwgfx_video_free_comp - free members used for composite bounce blit
     *
     * @priv: Pointer to the port private
     *
     * Frees any port priv resources allocated for a composite bounce blit.
     */
    static void
    vmwgfx_video_free_comp(struct xorg_xv_port_priv *priv)
    {
        if (priv->dst_pic)
    	free(priv->dst_pic);
        if (priv->src_pic)
    	free(priv->src_pic);
        if (priv->comp)
    	free(priv->comp);
    
        priv->dst_pic = NULL;
        priv->src_pic = NULL;
        priv->comp = NULL;
    }
    
    static void
    stop_video(ScrnInfoPtr pScrn, pointer data, Bool shutdown)
    {
       struct xorg_xv_port_priv *priv = (struct xorg_xv_port_priv *)data;
       int i, j;
    
       REGION_EMPTY(pScrn->pScreen, &priv->clip);
       if (shutdown) {
    
           /*
    	* No need to destroy the xa context or xa tracker since
    	* they are copied from the screen resources.
    	*/
    
           xa_fence_destroy(priv->fence);
           priv->fence = NULL;
           vmwgfx_video_free_comp(priv);
    
           for (i=0; i<3; ++i) {
    	   for (j=0; j<2; ++j) {
    	       if (priv->yuv[i]) {
    		   xa_surface_destroy(priv->yuv[j][i]);
    		   priv->yuv[j][i] = NULL;
    	       }
    	       if (priv->bounce) {
    		   xa_surface_destroy(priv->bounce);
    		   priv->bounce = NULL;
    	       }
    	   }
           }
       }
    }
    
    static int
    set_port_attribute(ScrnInfoPtr pScrn,
                       Atom attribute, INT32 value, pointer data)
    {
       struct xorg_xv_port_priv *priv = (struct xorg_xv_port_priv *)data;
    
       if (attribute == xvBrightness) {
           if ((value < -1000) || (value > 1000))
    	   return BadValue;
    
           priv->brightness = value;
           priv->y_offset = -((float) value)/1000.f;
    
       } else if (attribute == xvContrast) {
           if ((value < -1000) || (value > 1000))
    	   return BadValue;
    
           priv->contrast = value;
           priv->rgb_scale = ((float) value + 1000.f)/1000.f;
    
       } else if (attribute == xvSaturation) {
           if ((value < -1000) || (value > 1000))
    	   return BadValue;
    
           priv->saturation = value;
           priv->uv_scale = ((float) value + 1000.f)/1000.f;
    
       } else if (attribute == xvHue) {
           double hue_angle;
    
           if ((value < -1000) || (value > 1000))
    	   return BadValue;
    
           priv->hue = value;
           hue_angle = (double) value * M_PI / 1000.;
           priv->sinhue = sin(hue_angle);
           priv->coshue = cos(hue_angle);
    
       } else
          return BadMatch;
    
       vmwgfx_update_conversion_matrix(priv);
       return Success;
    }
    
    static int
    get_port_attribute(ScrnInfoPtr pScrn,
                       Atom attribute, INT32 * value, pointer data)
    {
        struct xorg_xv_port_priv *priv = (struct xorg_xv_port_priv *)data;
    
        if (attribute == xvBrightness)
    	*value = priv->brightness;
        else if (attribute == xvContrast)
    	*value = priv->contrast;
        else if (attribute == xvSaturation)
    	*value = priv->saturation;
        else if (attribute == xvHue)
    	*value = priv->hue;
        else
    	return BadMatch;
    
        return Success;
    }
    
    static void
    query_best_size(ScrnInfoPtr pScrn,
                    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;
    }
    
    static int
    check_yuv_surfaces(struct xorg_xv_port_priv *priv,  int id,
    		   int width, int height)
    {
        struct xa_surface **yuv = priv->yuv[priv->current_set];
        int ret = 0;
        int i;
    
        for (i=0; i<3; ++i) {
    
    	/*
    	 * Adjust u,v texture size and DMA buffer to what's required by
    	 * the format.
    	 */
    	if (i == 1) {
    	    switch(id) {
    	    case FOURCC_YV12:
    		height /= 2;
    		/* Fall through */
    	    case FOURCC_YUY2:
    	    case FOURCC_UYVY:
    		width /= 2;
    		break;
    	    default:
    		break;
    	    }
    	}
    
    	if (!yuv[i])
    	    yuv[i] = xa_surface_create(priv->xat, width, height, 8,
    				       xa_type_yuv_component,
    				       xa_format_unknown, 0);
    	else
    	    ret = xa_surface_redefine(yuv[i], width, height, 8,
    				      xa_type_yuv_component,
    				      xa_format_unknown, 0, 0);
    	if (ret || !yuv[i])
    	    return BadAlloc;
    
        }
        return Success;
    }
    
    
    /**
     * vmwgfx_video_setup_comp - Set up port priv members for a composite
     * bounce blit
     *
     * @priv: Pointer to the port priv.
     * @format: XA format of the destination drawable surface.
     *
     * Tries to allocate and set up port priv resources to perform a composite
     * bounce blit (except the bounce surface itself). On failure, all resources
     * are freed. On success, TRUE is returned and @priv::comp is non-NULL. If
     * resources are already allocated, update them for the current @format.
     */
    static Bool
    vmwgfx_video_setup_comp(struct xorg_xv_port_priv *priv, enum xa_formats format)
    {
        const struct xa_composite_allocation *alloc;
        struct xa_picture *pic;
    
        if (priv->comp) {
    	if (priv->src_pic->pict_format != format) {
    	    priv->src_pic->pict_format = format;
    	    priv->dst_pic->pict_format = format;
    	    if (xa_composite_check_accelerated(priv->comp) != XA_ERR_NONE) {
    		vmwgfx_video_free_comp(priv);
    		return FALSE;
    	    }
    	}
    	return TRUE;
        }
    
        alloc = xa_composite_allocation();
        priv->comp = calloc(1, alloc->xa_composite_size);
        priv->src_pic = calloc(1, alloc->xa_picture_size);
        priv->dst_pic = calloc(1, alloc->xa_picture_size);
    
        if (!priv->comp || !priv->src_pic || !priv->dst_pic) {
    	vmwgfx_video_free_comp(priv);
    	return FALSE;
        }
    
        pic = priv->src_pic;
        pic->pict_format = format;
        pic->wrap = xa_wrap_clamp_to_border;
        pic->filter = xa_filter_linear;
    
        *priv->dst_pic = *pic;
    
        priv->comp->src = priv->src_pic;
        priv->comp->dst = priv->dst_pic;
        priv->comp->op = xa_op_src;
        priv->comp->no_solid = 1;
    
        if (xa_composite_check_accelerated(priv->comp) != XA_ERR_NONE) {
    	vmwgfx_video_free_comp(priv);
    	return FALSE;
        }
    
        return TRUE;
    }
    
    /**
     * vmwgfx_video_setup_coord_matrix - Set up a bounce - to destination
     * transformation matrix
     *
     * @src_x: Upper left corner of source image as given to putImage.
     * @src_y: Upper left corner of source image as given to putImage.
     * @src_w: Width of source image.
     * @src_h: Height of source image.
     * @dst_x: Upper left corner of destination image as given to putImage.
     * @dst_y: Upper left corner of destination image as given to putImage.
     * @dst_w: Width of destination image.
     * @dst_h: Height of destination image.
     * @bounce_w: Width of bounce surface.
     * @bounce_h: Height of bounce surface.
     * @mat: Pointer to transformation matrix.
     *
     * Computes a transformation matrix that can be used by the XA composite API
     * to transform between the destination coordinate space and the bounce
     * surface coordinate space. Scaling and translation.
     */
    static void
    vmwgfx_video_setup_coord_matrix(int src_x, int src_y, int src_w, int src_h,
    				int dst_x, int dst_y, int dst_w, int dst_h,
    				int bounce_w, int bounce_h,
    				float *mat)
    {
        if (dst_w == 0 || dst_h == 0 || src_w == 0 || src_h == 0) {
    	mat[0] = mat[6] = 0.;
    	mat[4] = mat[7] = 0.;
    	mat[8] = 1.f;
    	return;
        }
    
        mat[0] = (float) bounce_w / (float) dst_w;
        mat[6] = (float) src_x * (float) bounce_w / (float) src_w -
          (float) dst_x * mat[0];
        mat[4] = (float) bounce_h / (float) dst_h;
        mat[7] = (float) src_y * (float) bounce_h / (float) src_h -
          (float) dst_y * mat[4];
        mat[8] = 1.f;
    }
    
    /**
     * vmwgfx_video_bounce_surface: (Re)Allocate a bounce surface if desired.
     *
     * @priv: Pointer to the port private.
     * @d_with: Width of destination image.
     * @d_height: Height of destination image.
     * @width: Width of source video image.
     * @height: Height of source video image.
     * @dst_format: Format of destination drawable surface.
     *
     * If the destination video image is a suitable factor larger than the source
     * video image. Allocate a bounce RGB surface that will be the target of the
     * more expensive color conversion blit, and source of the scaling blit.
     */
    static Bool
    vmwgfx_video_bounce_surface(struct xorg_xv_port_priv *priv,
    			    int d_width, int d_height,
    			    int width, int height,
    			    enum xa_formats dst_format)
    {
        float bounce_area, dst_area;
    
        if (d_width < width)
    	width = d_width;
    
        if (d_height < height)
    	height = d_height;
    
        bounce_area = (float) width * (float) height;
        dst_area = (float) d_width * (float) d_height;
    
        if (dst_area > bounce_area * 1.5f &&
    	vmwgfx_video_setup_comp(priv, dst_format)) {
    
    	if (!priv->bounce) {
    	    priv->bounce = xa_surface_create(priv->xat, width, height,
    					     xa_format_depth(dst_format),
    					     xa_format_type(dst_format),
    					     dst_format, XA_FLAG_RENDER_TARGET);
    	} else {
    	    if (xa_surface_redefine(priv->bounce, width, height,
    				    xa_format_depth(dst_format),
    				    xa_format_type(dst_format),
    				    dst_format,
    				    XA_FLAG_RENDER_TARGET, 0) != XA_ERR_NONE) {
    		xa_surface_destroy(priv->bounce);
    		priv->bounce = NULL;
    	    }
    	}
    
        } else {
    	xa_surface_destroy(priv->bounce);
    	priv->bounce = NULL;
        }
    
        if (priv->bounce) {
    	priv->bounce_box.x1 = 0;
    	priv->bounce_box.x2 = width;
    	priv->bounce_box.y1 = 0;
    	priv->bounce_box.y2 = height;
        }
    
        return TRUE;
    }
    
    static int
    query_image_attributes(ScrnInfoPtr pScrn,
                           int id,
                           unsigned short *w, unsigned short *h,
                           int *pitches, int *offsets)
    {
       int size, tmp;
    
       if (*w > IMAGE_MAX_WIDTH)
          *w = IMAGE_MAX_WIDTH;
       if (*h > IMAGE_MAX_HEIGHT)
          *h = IMAGE_MAX_HEIGHT;
    
       *w = (*w + 1) & ~1;
       if (offsets)
          offsets[0] = 0;
    
       switch (id) {
       case FOURCC_YV12:
          *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;
       }
    
       return size;
    }
    
    static int
    copy_packed_data(ScrnInfoPtr pScrn,
                     struct xorg_xv_port_priv *port,
                     int id,
                     unsigned char *buf,
                     int left,
                     int top,
                     unsigned short w, unsigned short h)
    {
        int i;
       struct xa_surface **yuv = port->yuv[port->current_set];
       char *ymap, *vmap, *umap;
       unsigned char _y1, _y2, u, v;
       int yidx, uidx, vidx;
       int y_array_size = w * h;
       int ret = BadAlloc;
    
       ymap = xa_surface_map(port->r, yuv[0], XA_MAP_WRITE);
       if (!ymap)
           return BadAlloc;
       umap = xa_surface_map(port->r, yuv[1], XA_MAP_WRITE);
       if (!umap)
           goto out_no_umap;
       vmap = xa_surface_map(port->r, yuv[2], XA_MAP_WRITE);
       if (!vmap)
           goto out_no_vmap;
    
    
       yidx = uidx = vidx = 0;
    
       switch (id) {
       case FOURCC_YV12: {
          int pitches[3], offsets[3];
          unsigned char *yp, *up, *vp;
          query_image_attributes(pScrn, FOURCC_YV12,
                                 &w, &h, pitches, offsets);
    
          yp = buf + offsets[0];
          vp = buf + offsets[1];
          up = buf + offsets[2];
          memcpy(ymap, yp, w*h);
          memcpy(vmap, vp, w*h/4);
          memcpy(umap, up, w*h/4);
          break;
       }
       case FOURCC_UYVY:
          for (i = 0; i < y_array_size; i +=2 ) {
             /* extracting two pixels */
             u  = buf[0];
             _y1 = buf[1];
             v  = buf[2];
             _y2 = buf[3];
             buf += 4;
    
             ymap[yidx++] = _y1;
             ymap[yidx++] = _y2;
             umap[uidx++] = u;
             vmap[vidx++] = v;
          }
          break;
       case FOURCC_YUY2:
          for (i = 0; i < y_array_size; i +=2 ) {
             /* extracting two pixels */
             _y1 = buf[0];
             u  = buf[1];
             _y2 = buf[2];
             v  = buf[3];
    
             buf += 4;
    
             ymap[yidx++] = _y1;
             ymap[yidx++] = _y2;
             umap[uidx++] = u;
             vmap[vidx++] = v;
          }
          break;
       default:
           ret = BadAlloc;
           break;
       }
    
       ret = Success;
       xa_surface_unmap(yuv[2]);
      out_no_vmap:
       xa_surface_unmap(yuv[1]);
      out_no_umap:
       xa_surface_unmap(yuv[0]);
    
       return ret;
    }
    
    
    static int
    display_video(ScreenPtr pScreen, struct xorg_xv_port_priv *pPriv, int id,
                  RegionPtr dstRegion,
                  int src_x, int src_y, int src_w, int src_h,
                  int dst_x, int dst_y, int dst_w, int dst_h,
    	      int width, int height,
                  PixmapPtr pPixmap)
    {
        struct vmwgfx_saa_pixmap *vpix = vmwgfx_saa_pixmap(pPixmap);
        Bool hdtv;
        RegionRec reg;
        int ret = BadAlloc;
        int blit_ret;
    
        REGION_NULL(pScreen, &reg);
    
        if (!vmwgfx_hw_accel_validate(pPixmap, 0, XA_FLAG_RENDER_TARGET, 0, &reg))
    	goto out_no_dst;
    
       hdtv = ((src_w >= RES_720P_X) && (src_h >= RES_720P_Y));
       if (hdtv != pPriv->hdtv) {
           pPriv->hdtv = hdtv;
           vmwgfx_update_conversion_matrix(pPriv);
       }
    
    #ifdef COMPOSITE
    
       /*
        * For redirected windows, we need to fix up the destination coordinates.
        */
    
       REGION_TRANSLATE(pScreen, dstRegion, -pPixmap->screen_x,
    		    -pPixmap->screen_y);
       dst_x -= pPixmap->screen_x;
       dst_y -= pPixmap->screen_y;
    #endif
    
       /*
        * Throttle on previous blit.
        */
    
       if (pPriv->fence) {
           (void) xa_fence_wait(pPriv->fence, 1000000000ULL);
           xa_fence_destroy(pPriv->fence);
           pPriv->fence = NULL;
       }
    
       (void) vmwgfx_video_bounce_surface(pPriv, dst_w, dst_h, width, height,
    				      xa_surface_format(vpix->hw));
    
       DamageRegionAppend(&pPixmap->drawable, dstRegion);
    
       if (pPriv->bounce) {
           BoxPtr b;
           int i;
    
           /*
    	* If we have a bounce buffer, First perform a (potentially down-
    	* scaling) color conversion blit with an expensive shader.
    	*/
           blit_ret = xa_yuv_planar_blit(pPriv->r, 0, 0, src_w, src_h,
    				     src_x, src_y,
    				     pPriv->bounce_box.x2,
    				     pPriv->bounce_box.y2,
    				     &pPriv->bounce_box, 1,
    				     pPriv->cm,
    				     pPriv->bounce,
    				     pPriv->yuv[pPriv->current_set]);
    
           if (blit_ret)
    	   goto out_blit;
    
           /*
    	* Then an upscaling blit with a cheap shader. Note that we never
    	* scale up a dimenstion that was previously downscaled in the color
    	* conversion blit.
    	*/
           pPriv->src_pic->srf = pPriv->bounce;
           pPriv->dst_pic->srf = vpix->hw;
           vmwgfx_video_setup_coord_matrix(src_x, src_y, src_w, src_h,
    				       dst_x, dst_y, dst_w, dst_h,
    				       pPriv->bounce_box.x2,
    				       pPriv->bounce_box.y2,
    				       pPriv->src_pic->transform);
           pPriv->src_pic->has_transform = 1;
    
           if (xa_composite_prepare(pPriv->r, pPriv->comp) != XA_ERR_NONE) {
    	   blit_ret = 1;
    	   goto out_blit;
           }
    
           b =  REGION_RECTS(dstRegion);
           for (i = 0; i < REGION_NUM_RECTS(dstRegion); ++i, ++b) {
    	       xa_composite_rect(pPriv->r, b->x1, b->y1, 0, 0,
    				 b->x1, b->y1, b->x2 - b->x1,
    				 b->y2 - b->y1);
           }
    
           xa_composite_done(pPriv->r);
       } else {
           /*
    	* Perform color conversion and scaling in the same blit.
    	*/
           blit_ret = xa_yuv_planar_blit(pPriv->r, src_x, src_y, src_w, src_h,
    				     dst_x, dst_y, dst_w, dst_h,
    				     (struct xa_box *)REGION_RECTS(dstRegion),
    				     REGION_NUM_RECTS(dstRegion),
    				     pPriv->cm,
    				     vpix->hw,
    				     pPriv->yuv[pPriv->current_set ]);
       }
    
      out_blit:
    
       saa_pixmap_dirty(pPixmap, TRUE, dstRegion);
       DamageRegionProcessPending(&pPixmap->drawable);
       ret = Success;
    
       if (!blit_ret) {
           ret = Success;
           pPriv->fence = xa_fence_get(pPriv->r);
       } else
           ret = BadAlloc;
    
       out_no_dst:
       REGION_UNINIT(pScreen, &reg);
       return ret;
    }
    
    static int
    put_image(ScrnInfoPtr pScrn,
              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 clipBoxes, pointer data,
              DrawablePtr pDraw)
    {
       struct xorg_xv_port_priv *pPriv = (struct xorg_xv_port_priv *) data;
       ScreenPtr pScreen = xf86ScrnToScreen(pScrn);
       PixmapPtr pPixmap;
       INT32 x1, x2, _y1, _y2;
       BoxRec dstBox;
       int ret;
    
       /* Clip */
       x1 = src_x;
       x2 = src_x + src_w;
       _y1 = src_y;
       _y2 = src_y + src_h;
    
       dstBox.x1 = drw_x;
       dstBox.x2 = drw_x + drw_w;
       dstBox.y1 = drw_y;
       dstBox.y2 = drw_y + drw_h;
    
       if (!xf86XVClipVideoHelper(&dstBox, &x1, &x2, &_y1, &_y2, clipBoxes,
    			      width, height))
          return Success;
    
       ret = check_yuv_surfaces(pPriv, id, width, height);
       if (ret)
           return ret;
    
       ret = copy_packed_data(pScrn, pPriv, id, buf,
    			  src_x, src_y, width, height);
       if (ret)
           return ret;
    
       if (pDraw->type == DRAWABLE_WINDOW) {
          pPixmap = (*pScreen->GetWindowPixmap)((WindowPtr)pDraw);
       } else {
          pPixmap = (PixmapPtr)pDraw;
       }
    
       display_video(pScrn->pScreen, pPriv, id, clipBoxes,
                     src_x, src_y, src_w, src_h,
                     drw_x, drw_y,
                     drw_w, drw_h,
    		 width, height, pPixmap);
    
       pPriv->current_set = (pPriv->current_set + 1) & 1;
       return Success;
    }
    
    static struct xorg_xv_port_priv *
    port_priv_create(struct xa_tracker *xat, struct xa_context *r,
    		 int drm_fd)
    {
       struct xorg_xv_port_priv *priv = NULL;
    
       priv = calloc(1, sizeof(struct xorg_xv_port_priv));
    
       if (!priv)
          return NULL;
    
       priv->r = r;
       priv->xat = xat;
       priv->drm_fd = drm_fd;
       REGION_NULL(pScreen, &priv->clip);
       priv->hdtv = FALSE;
       priv->uv_offset = 0.5f;
       priv->uv_scale = 1.f;
       priv->y_offset = 0.f;
       priv->y_scale = 1.f;
       priv->rgb_offset = 0.f;
       priv->rgb_scale = 1.f;
       priv->sinhue = 0.f;
       priv->coshue = 1.f;
    
       vmwgfx_update_conversion_matrix(priv);
    
       return priv;
    }
    
    static void
    vmwgfx_free_textured_adaptor(XF86VideoAdaptorPtr adaptor, Bool free_ports)
    {
        if (free_ports) {
    	int i;
    
    	for(i=0; i<adaptor->nPorts; ++i) {
    	    free(adaptor->pPortPrivates[i].ptr);
    	}
        }
    
        free(adaptor->pAttributes);
        free(adaptor->pPortPrivates);
        xf86XVFreeVideoAdaptorRec(adaptor);
    }
    
    static XF86VideoAdaptorPtr
    xorg_setup_textured_adapter(ScreenPtr pScreen)
    {
       ScrnInfoPtr pScrn = xf86ScreenToScrn(pScreen);
       modesettingPtr ms = modesettingPTR(pScrn);
       XF86VideoAdaptorPtr adapt;
       XF86AttributePtr attrs;
       DevUnion *dev_unions;
       int nports = 16, i;
       int nattributes;
       struct xa_context *xar;
    
       /*
        * Use the XA default context since we don't expect the X server
        * to render from multiple threads.
        */
    
       xar = xa_context_default(ms->xat);
       nattributes = NUM_TEXTURED_ATTRIBUTES;
    
       adapt = calloc(1, sizeof(XF86VideoAdaptorRec));
       dev_unions = calloc(nports, sizeof(DevUnion));
       attrs = calloc(nattributes, sizeof(XF86AttributeRec));
       if (adapt == NULL || dev_unions == NULL || attrs == NULL) {
          free(adapt);
          free(dev_unions);
          free(attrs);
          return NULL;
       }
    
       adapt->type = XvWindowMask | XvInputMask | XvImageMask;
       adapt->flags = 0;
       adapt->name = xv_adapt_name;
       adapt->nEncodings = 1;
       adapt->pEncodings = DummyEncoding;
       adapt->nFormats = NUM_FORMATS;
       adapt->pFormats = Formats;
       adapt->nPorts = 0;
       adapt->pPortPrivates = dev_unions;
       adapt->nAttributes = nattributes;
       adapt->pAttributes = attrs;
       memcpy(attrs, TexturedAttributes, nattributes * sizeof(XF86AttributeRec));
       adapt->nImages = NUM_IMAGES;
       adapt->pImages = Images;
       adapt->PutVideo = NULL;
       adapt->PutStill = NULL;
       adapt->GetVideo = NULL;
       adapt->GetStill = NULL;
       adapt->StopVideo = stop_video;
       adapt->SetPortAttribute = set_port_attribute;
       adapt->GetPortAttribute = get_port_attribute;
       adapt->QueryBestSize = query_best_size;
       adapt->PutImage = put_image;
       adapt->QueryImageAttributes = query_image_attributes;
    
    
       for (i = 0; i < nports; i++) {
           struct xorg_xv_port_priv *priv =
    	  port_priv_create(ms->xat, xar, ms->fd);
    
          adapt->pPortPrivates[i].ptr = (pointer) (priv);
          adapt->nPorts++;
       }
    
       return adapt;
    }
    
    void
    xorg_xv_init(ScreenPtr pScreen)
    {
       ScrnInfoPtr pScrn = xf86ScreenToScrn(pScreen);
       modesettingPtr ms = modesettingPTR(pScrn);
       XF86VideoAdaptorPtr *adaptors, *new_adaptors = NULL;
       XF86VideoAdaptorPtr textured_adapter = NULL, overlay_adaptor = NULL;
       int num_adaptors;
    
       num_adaptors = xf86XVListGenericAdaptors(pScrn, &adaptors);
       new_adaptors = malloc((num_adaptors + 2) * sizeof(XF86VideoAdaptorPtr *));
       if (new_adaptors == NULL)
           return;
    
       memcpy(new_adaptors, adaptors, num_adaptors * sizeof(XF86VideoAdaptorPtr));
       adaptors = new_adaptors;
    
       /* Add the adaptors supported by our hardware.  First, set up the atoms
        * that will be used by both output adaptors.
        */
       xvBrightness = MAKE_ATOM("XV_BRIGHTNESS");
       xvContrast = MAKE_ATOM("XV_CONTRAST");
       xvSaturation = MAKE_ATOM("XV_SATURATION");
       xvHue = MAKE_ATOM("XV_HUE");
    
       if (ms->xat) {
           textured_adapter = xorg_setup_textured_adapter(pScreen);
           if (textured_adapter)
    	   adaptors[num_adaptors++] = textured_adapter;
       } else {
           xf86DrvMsg(pScrn->scrnIndex, X_INFO,
    		  "No 3D acceleration. Not setting up textured video.\n");
       }
    
       overlay_adaptor = vmw_video_init_adaptor(pScrn);
       if (overlay_adaptor)
           adaptors[num_adaptors++] = overlay_adaptor;
    
       if (num_adaptors) {
           Bool ret;
           ret = xf86XVScreenInit(pScreen, adaptors, num_adaptors);
           if (textured_adapter)
    	   vmwgfx_free_textured_adaptor(textured_adapter, !ret);
           if (overlay_adaptor)
    	   vmw_video_free_adaptor(overlay_adaptor, !ret);
           if (!ret)
    	   xf86DrvMsg(pScrn->scrnIndex, X_ERROR,
    		      "Failed to initialize Xv.\n");
       } else {
           xf86DrvMsg(pScrn->scrnIndex, X_WARNING,
    		  "Disabling Xv because no adaptors could be initialized.\n");
       }
    }