1 files changed, 893 insertions, 0 deletions

diff --git a/vmwgfx/vmwgfx_overlay.c b/vmwgfx/vmwgfx_overlay.c
new file mode 100644
index 0000000..6624a10
--- /dev/null
+++ b/vmwgfx/vmwgfx_overlay.c
@@ -0,0 +1,893 @@
+/*
+ * Copyright 2007-2011 by VMware, 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
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * 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 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 NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) 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.
+ *
+ * Except as contained in this notice, the name of the copyright holder(s)
+ * and author(s) shall not be used in advertising or otherwise to promote
+ * the sale, use or other dealings in this Software without prior written
+ * authorization from the copyright holder(s) and author(s).
+ *
+ */
+
+/*
+ * vmwarevideo.c --
+ *
+ *      Xv extension support.
+ *      See http://www.xfree86.org/current/DESIGN16.html
+ *
+ */
+
+
+#include "xf86xv.h"
+#include "fourcc.h"
+#define debug_printf(...)
+
+/*
+ * We can't incude svga_types.h due to conflicting types for Bool.
+ */
+typedef int64_t int64;
+typedef uint64_t uint64;
+
+typedef int32_t int32;
+typedef uint32_t uint32;
+
+typedef int16_t int16;
+typedef uint16_t uint16;
+
+typedef int8_t int8;
+typedef uint8_t uint8;
+
+#include "../src/svga_reg.h"
+#include "../src/svga_escape.h"
+#include "../src/svga_overlay.h"
+
+#include <X11/extensions/Xv.h>
+
+#include "xf86drm.h"
+#include "vmwgfx_drm.h"
+#include "vmwgfx_drmi.h"
+#include "vmwgfx_driver.h"
+
+#define MAKE_ATOM(a) MakeAtom(a, sizeof(a) - 1, TRUE)
+
+/*
+ * Number of videos that can be played simultaneously
+ */
+#define VMWARE_VID_NUM_PORTS 1
+
+/*
+ * Using a dark shade as the default colorKey
+ */
+#define VMWARE_VIDEO_COLORKEY 0x100701
+
+/*
+ * Maximum dimensions
+ */
+#define VMWARE_VID_MAX_WIDTH    2048
+#define VMWARE_VID_MAX_HEIGHT   2048
+
+#define VMWARE_VID_NUM_ENCODINGS 1
+static XF86VideoEncodingRec vmwareVideoEncodings[] =
+{
+    {
+       0,
+       "XV_IMAGE",
+       VMWARE_VID_MAX_WIDTH, VMWARE_VID_MAX_HEIGHT,
+       {1, 1}
+    }
+};
+
+#define VMWARE_VID_NUM_FORMATS 2
+static XF86VideoFormatRec vmwareVideoFormats[] =
+{
+    { 16, TrueColor},
+    { 24, TrueColor}
+};
+
+#define VMWARE_VID_NUM_IMAGES 3
+static XF86ImageRec vmwareVideoImages[] =
+{
+    XVIMAGE_YV12,
+    XVIMAGE_YUY2,
+    XVIMAGE_UYVY
+};
+
+#define VMWARE_VID_NUM_ATTRIBUTES 2
+static XF86AttributeRec vmwareVideoAttributes[] =
+{
+    {
+        XvGettable | XvSettable,
+        0x000000,
+        0xffffff,
+        "XV_COLORKEY"
+    },
+    {
+        XvGettable | XvSettable,
+        0,
+        1,
+        "XV_AUTOPAINT_COLORKEY"
+    }
+};
+
+/*
+ * Video frames are stored in a circular list of buffers.
+ * Must be power or two, See vmw_video_port_play.
+ */
+#define VMWARE_VID_NUM_BUFFERS 1
+
+/*
+ * Defines the structure used to hold and pass video data to the host
+ */
+struct vmw_video_buffer
+{
+    int size;
+    void *data;
+    struct vmwgfx_dmabuf *buf;
+};
+
+
+/**
+ * Structure representing a single video stream, aka port.
+ *
+ * Ports maps one to one to a SVGA stream. Port is just
+ * what Xv calls a SVGA stream.
+ */
+struct vmwgfx_overlay_port
+{
+    /*
+     * Function prototype same as XvPutImage.
+     *
+     * This is either set to vmw_video_port_init or vmw_video_port_play.
+     * At init this function is set to port_init. In port_init we set it
+     * to port_play and call it, after initializing the struct.
+     */
+    int (*play)(ScrnInfoPtr, struct vmwgfx_overlay_port *,
+                short, short, short, short, short,
+                short, short, short, int, unsigned char*,
+                short, short, RegionPtr);
+
+    /* values to go into the SVGAOverlayUnit */
+    uint32 streamId;
+    uint32 colorKey;
+    uint32 flags;
+
+    /* round robin of buffers */
+    unsigned currBuf;
+    struct vmw_video_buffer bufs[VMWARE_VID_NUM_BUFFERS];
+
+    /* properties that applies to all buffers */
+    int size;
+    int pitches[3];
+    int offsets[3];
+
+    /* things for X */
+    RegionRec clipBoxes;
+    Bool isAutoPaintColorkey;
+    int drm_fd;
+};
+
+/*
+ * Callback functions exported to Xv, prefixed with vmw_xv_*.
+ */
+static int vmw_xv_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 image,
+                            unsigned char *buf, short width, short height,
+                            Bool sync, RegionPtr clipBoxes, pointer data,
+                            DrawablePtr dst);
+static void vmw_xv_stop_video(ScrnInfoPtr pScrn, pointer data, Bool Cleanup);
+static int vmw_xv_query_image_attributes(ScrnInfoPtr pScrn, int format,
+                                         unsigned short *width,
+                                         unsigned short *height, int *pitches,
+                                         int *offsets);
+static int vmw_xv_set_port_attribute(ScrnInfoPtr pScrn, Atom attribute,
+                                     INT32 value, pointer data);
+static int vmw_xv_get_port_attribute(ScrnInfoPtr pScrn, Atom attribute,
+                                     INT32 *value, pointer data);
+static void vmw_xv_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);
+
+
+/*
+ * Local functions.
+ */
+static int vmw_video_port_init(ScrnInfoPtr pScrn,
+                               struct vmwgfx_overlay_port *port,
+                               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 format,
+                               unsigned char *buf, short width,
+                               short height, RegionPtr clipBoxes);
+static int vmw_video_port_play(ScrnInfoPtr pScrn, struct vmwgfx_overlay_port *port,
+                               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 format,
+                               unsigned char *buf, short width,
+                               short height, RegionPtr clipBoxes);
+static void vmw_video_port_cleanup(ScrnInfoPtr pScrn, struct vmwgfx_overlay_port *port);
+
+static int vmw_video_buffer_alloc(int drm_fd, int size,
+                                  struct vmw_video_buffer *out);
+static int vmw_video_buffer_free(struct vmw_video_buffer *out);
+
+
+static struct vmwgfx_overlay_port *
+vmwgfx_overlay_port_create(int drm_fd, ScreenPtr pScreen)
+{
+    struct vmwgfx_overlay_port *port = calloc(1, sizeof(*port));
+
+    if (!port)
+        return NULL;
+
+    port->drm_fd = drm_fd;
+    port->play = vmw_video_port_init;
+    port->flags = SVGA_VIDEO_FLAG_COLORKEY;
+    port->colorKey = VMWARE_VIDEO_COLORKEY;
+    port->isAutoPaintColorkey = TRUE;
+    return port;
+}
+
+void
+vmw_video_free_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->pPortPrivates);
+    xf86XVFreeVideoAdaptorRec(adaptor);
+}
+
+/*
+ *-----------------------------------------------------------------------------
+ *
+ * vmw_video_init_adaptor --
+ *
+ *    Initializes a XF86VideoAdaptor structure with the capabilities and
+ *    functions supported by this video driver.
+ *
+ * Results:
+ *    On success initialized XF86VideoAdaptor struct or NULL on error
+ *
+ * Side effects:
+ *    None.
+ *
+ *-----------------------------------------------------------------------------
+ */
+
+XF86VideoAdaptorPtr
+vmw_video_init_adaptor(ScrnInfoPtr pScrn)
+{
+    XF86VideoAdaptorPtr adaptor;
+    modesettingPtr ms = modesettingPTR(pScrn);
+    int i;
+    DevUnion *dev_unions;
+    uint32_t ntot, nfree;
+
+    if (vmwgfx_num_streams(ms->fd, &ntot, &nfree) != 0) {
+        debug_printf("No stream ioctl support\n");
+        return NULL;
+    }
+    if (nfree == 0) {
+        debug_printf("No free streams\n");
+        return NULL;
+    }
+    adaptor = xf86XVAllocateVideoAdaptorRec(pScrn);
+    dev_unions = calloc(VMWARE_VID_NUM_PORTS, sizeof(DevUnion));
+    if (adaptor == NULL || dev_unions == NULL) {
+        xf86XVFreeVideoAdaptorRec(adaptor);
+        free(dev_unions);
+        return NULL;
+    }
+
+    adaptor->type = XvInputMask | XvImageMask | XvWindowMask;
+
+    /**
+     * Note: CLIP_TO_VIEWPORT was removed from the flags, since with the
+     * crtc/output based modesetting, the viewport is not updated on
+     * RandR modeswitches. Hence the video may incorrectly be clipped away.
+     * The correct approach, (if needed) would be to clip against the
+     * scanout area union of all active crtcs. Revisit if needed.
+     */
+
+    adaptor->flags = VIDEO_OVERLAID_IMAGES;
+    adaptor->name = "VMware Overlay Video Engine";
+    adaptor->nEncodings = VMWARE_VID_NUM_ENCODINGS;
+    adaptor->pEncodings = vmwareVideoEncodings;
+    adaptor->nFormats = VMWARE_VID_NUM_FORMATS;
+    adaptor->pFormats = vmwareVideoFormats;
+    adaptor->nPorts = VMWARE_VID_NUM_PORTS;
+    adaptor->pPortPrivates = dev_unions;
+
+    for (i = 0; i < VMWARE_VID_NUM_PORTS; ++i) {
+        struct vmwgfx_overlay_port *priv =
+            vmwgfx_overlay_port_create(ms->fd, pScrn->pScreen);
+
+        adaptor->pPortPrivates[i].ptr = (pointer) priv;
+    }
+
+    adaptor->nAttributes = VMWARE_VID_NUM_ATTRIBUTES;
+    adaptor->pAttributes = vmwareVideoAttributes;
+    adaptor->nImages = VMWARE_VID_NUM_IMAGES;
+    adaptor->pImages = vmwareVideoImages;
+
+    adaptor->PutVideo = NULL;
+    adaptor->PutStill = NULL;
+    adaptor->GetVideo = NULL;
+    adaptor->GetStill = NULL;
+    adaptor->StopVideo = vmw_xv_stop_video;
+    adaptor->SetPortAttribute = vmw_xv_set_port_attribute;
+    adaptor->GetPortAttribute = vmw_xv_get_port_attribute;
+    adaptor->QueryBestSize = vmw_xv_query_best_size;
+    adaptor->PutImage = vmw_xv_put_image;
+    adaptor->QueryImageAttributes = vmw_xv_query_image_attributes;
+
+    return adaptor;
+}
+
+
+/*
+ *-----------------------------------------------------------------------------
+ *
+ * vmw_video_port_init --
+ *
+ *    Initializes a video stream in response to the first PutImage() on a
+ *    video stream. The process goes as follows:
+ *    - Figure out characteristics according to format
+ *    - Allocate offscreen memory
+ *    - Pass on video to Play() functions
+ *
+ * Results:
+ *    Success or XvBadAlloc on failure.
+ *
+ * Side effects:
+ *    Video stream is initialized and its first frame sent to the host
+ *    (done by VideoPlay() function called at the end)
+ *
+ *-----------------------------------------------------------------------------
+ */
+
+static int
+vmw_video_port_init(ScrnInfoPtr pScrn, struct vmwgfx_overlay_port *port,
+                    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 format,
+                    unsigned char *buf, short width,
+                    short height, RegionPtr clipBoxes)
+{
+    unsigned short w, h;
+    int i, ret;
+
+    debug_printf("\t%s: id %d, format %d\n", __func__, port->streamId, format);
+
+    ret = vmwgfx_claim_stream(port->drm_fd, &port->streamId);
+    if (ret != 0)
+        return XvBadAlloc;
+
+    w = width;
+    h = height;
+    /* init all the format attributes, used for buffers */
+    port->size = vmw_xv_query_image_attributes(pScrn, format, &w, &h,
+                                               port->pitches, port->offsets);
+
+    if (port->size == -1) {
+        ret = XvBadAlloc;
+        goto out_bad_size;
+    }
+
+    for (i = 0; i < VMWARE_VID_NUM_BUFFERS; ++i) {
+        ret = vmw_video_buffer_alloc(port->drm_fd, port->size, &port->bufs[i]);
+        if (ret != Success)
+            goto out_no_buffer;
+    }
+
+    port->currBuf = 0;
+    REGION_NULL(pScrn->pScreen, &port->clipBoxes);
+    port->play = vmw_video_port_play;
+    return port->play(pScrn, port, src_x, src_y, drw_x, drw_y, src_w, src_h,
+                      drw_w, drw_h, format, buf, width, height, clipBoxes);
+
+  out_no_buffer:
+    while(i-- != 0) {
+        vmw_video_buffer_free(&port->bufs[i]);
+    }
+  out_bad_size:
+    (void) vmwgfx_unref_stream(port->drm_fd, port->streamId);
+
+    return ret;
+}
+
+
+/*
+ *-----------------------------------------------------------------------------
+ *
+ * vmw_video_port_play --
+ *
+ *    Sends all the attributes associated with the video frame using the
+ *    FIFO ESCAPE mechanism to the host.
+ *
+ * Results:
+ *    Always returns Success.
+ *
+ * Side effects:
+ *    None.
+ *
+ *-----------------------------------------------------------------------------
+ */
+
+static int
+vmw_video_port_play(ScrnInfoPtr pScrn, struct vmwgfx_overlay_port *port,
+                    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 format,
+                    unsigned char *buf, short width,
+                    short height, RegionPtr clipBoxes)
+{
+    struct drm_vmw_control_stream_arg arg;
+    unsigned short w, h;
+    int size;
+    int ret;
+
+    debug_printf("\t%s: enter\n", __func__);
+
+    w = width;
+    h = height;
+
+    /* we don't update the ports size */
+    size = vmw_xv_query_image_attributes(pScrn, format, &w, &h,
+                                         port->pitches, port->offsets);
+
+    if (size != port->size) {
+        vmw_xv_stop_video(pScrn, port, TRUE);
+        return port->play(pScrn, port, src_x, src_y, drw_x, drw_y, src_w,
+                          src_h, drw_w, drw_h, format, buf, width, height,
+                          clipBoxes);
+    }
+
+    memcpy(port->bufs[port->currBuf].data, buf, port->size);
+
+    memset(&arg, 0, sizeof(arg));
+
+    arg.stream_id = port->streamId;
+    arg.enabled = TRUE;
+    arg.flags = port->flags;
+    arg.color_key = port->colorKey;
+    arg.handle = port->bufs[port->currBuf].buf->handle;
+    arg.format = format;
+    arg.size = port->size;
+    arg.width = w;
+    arg.height = h;
+    arg.src.x = src_x;
+    arg.src.y = src_y;
+    arg.src.w = src_w;
+    arg.src.h = src_h;
+    arg.dst.x = drw_x;
+    arg.dst.y = drw_y;
+    arg.dst.w = drw_w;
+    arg.dst.h = drw_h;
+    arg.pitch[0] = port->pitches[0];
+    arg.pitch[1] = port->pitches[1];
+    arg.pitch[2] = port->pitches[2];
+    arg.offset = 0;
+
+    /*
+     *  Update the clipList and paint the colorkey, if required.
+     */
+    if (!REGION_EQUAL(pScrn->pScreen, &port->clipBoxes, clipBoxes)) {
+        REGION_COPY(pScrn->pScreen, &port->clipBoxes, clipBoxes);
+        if (port->isAutoPaintColorkey)
+            xf86XVFillKeyHelper(pScrn->pScreen, port->colorKey, clipBoxes);
+    }
+
+    xorg_flush(pScrn->pScreen);
+    ret = drmCommandWrite(port->drm_fd, DRM_VMW_CONTROL_STREAM, &arg, sizeof(arg));
+    if (ret) {
+        vmw_video_port_cleanup(pScrn, port);
+        return XvBadAlloc;
+    }
+
+    if (++(port->currBuf) >= VMWARE_VID_NUM_BUFFERS)
+        port->currBuf = 0;
+
+    return Success;
+}
+
+
+/*
+ *-----------------------------------------------------------------------------
+ *
+ * vmw_video_port_cleanup --
+ *
+ *    Frees up all resources (if any) taken by a video stream.
+ *
+ * Results:
+ *    None.
+ *
+ * Side effects:
+ *    Same as above.
+ *
+ *-----------------------------------------------------------------------------
+ */
+
+static void
+vmw_video_port_cleanup(ScrnInfoPtr pScrn, struct vmwgfx_overlay_port *port)
+{
+    int i;
+
+    debug_printf("\t%s: enter\n", __func__);
+
+    if (port->play == vmw_video_port_init)
+        return;
+
+    port->play = vmw_video_port_init;
+    (void) vmwgfx_unref_stream(port->drm_fd, port->streamId);
+
+    for (i = 0; i < VMWARE_VID_NUM_BUFFERS; i++) {
+        vmw_video_buffer_free(&port->bufs[i]);
+    }
+
+    REGION_UNINIT(pScreen->pScreen, &port->clipBoxes);
+}
+
+
+/*
+ *-----------------------------------------------------------------------------
+ *
+ * vmw_video_buffer_alloc --
+ *
+ *    Allocates and map a kernel buffer to be used as data storage.
+ *
+ * Results:
+ *    XvBadAlloc on failure, otherwise Success.
+ *
+ * Side effects:
+ *    Calls into the kernel, sets members of out.
+ *
+ *-----------------------------------------------------------------------------
+ */
+
+static int
+vmw_video_buffer_alloc(int drm_fd, int size,
+                       struct vmw_video_buffer *out)
+{
+    out->buf = vmwgfx_dmabuf_alloc(drm_fd, size);
+    if (!out->buf)
+        return XvBadAlloc;
+
+    out->data = vmwgfx_dmabuf_map(out->buf);
+    if (!out->data) {
+        vmwgfx_dmabuf_destroy(out->buf);
+        out->buf = NULL;
+        return XvBadAlloc;
+    }
+
+    out->size = size;
+    debug_printf("\t\t%s: allocated buffer %p of size %i\n", __func__, out, size);
+
+    return Success;
+}
+
+
+/*
+ *-----------------------------------------------------------------------------
+ *
+ * vmw_video_buffer_free --
+ *
+ *    Frees and unmaps an allocated kernel buffer.
+ *
+ * Results:
+ *    Success.
+ *
+ * Side effects:
+ *    Calls into the kernel, sets members of out to 0.
+ *
+ *-----------------------------------------------------------------------------
+ */
+
+static int
+vmw_video_buffer_free(struct vmw_video_buffer *out)
+{
+    if (out->size == 0)
+        return Success;
+
+    vmwgfx_dmabuf_unmap(out->buf);
+    vmwgfx_dmabuf_destroy(out->buf);
+
+    out->buf = NULL;
+    out->data = NULL;
+    out->size = 0;
+
+    debug_printf("\t\t%s: freed buffer %p\n", __func__, out);
+
+    return Success;
+}
+
+
+/*
+ *-----------------------------------------------------------------------------
+ *
+ * vmw_xv_put_image --
+ *
+ *    Main video playback function. It copies the passed data which is in
+ *    the specified format (e.g. FOURCC_YV12) into the overlay.
+ *
+ *    If sync is TRUE the driver should not return from this
+ *    function until it is through reading the data from buf.
+ *
+ * Results:
+ *    Success or XvBadAlloc on failure
+ *
+ * Side effects:
+ *    Video port will be played(initialized if 1st frame) on success
+ *    or will fail on error.
+ *
+ *-----------------------------------------------------------------------------
+ */
+
+static int
+vmw_xv_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 format,
+                 unsigned char *buf, short width, short height,
+                 Bool sync, RegionPtr clipBoxes, pointer data,
+                 DrawablePtr dst)
+{
+    struct vmwgfx_overlay_port *port = data;
+
+    debug_printf("%s: enter (%u, %u) (%ux%u) (%u, %u) (%ux%u) (%ux%u)\n", __func__,
+                 src_x, src_y, src_w, src_h,
+                 drw_x, drw_y, drw_w, drw_h,
+                 width, height);
+
+    return port->play(pScrn, port, src_x, src_y, drw_x, drw_y, src_w, src_h,
+                      drw_w, drw_h, format, buf, width, height, clipBoxes);
+}
+
+
+/*
+ *-----------------------------------------------------------------------------
+ *
+ * vmw_xv_stop_video --
+ *
+ *    Called when we should stop playing video for a particular stream. If
+ *    Cleanup is FALSE, the "stop" operation is only temporary, and thus we
+ *    don't do anything. If Cleanup is TRUE we kill the video port by
+ *    sending a message to the host and freeing up the stream.
+ *
+ * Results:
+ *    None.
+ *
+ * Side effects:
+ *    See above.
+ *
+ *-----------------------------------------------------------------------------
+ */
+
+static void
+vmw_xv_stop_video(ScrnInfoPtr pScrn, pointer data, Bool cleanup)
+{
+    struct vmwgfx_overlay_port *port = data;
+
+    debug_printf("%s: cleanup is %s\n", __func__, cleanup ? "TRUE" : "FALSE");
+    REGION_EMPTY(pScrn->pScreen, &port->clipBoxes);
+
+    if (!cleanup)
+        return;
+
+    vmw_video_port_cleanup(pScrn, port);
+}
+
+
+/*
+ *-----------------------------------------------------------------------------
+ *
+ * vmw_xv_query_image_attributes --
+ *
+ *    From the spec: This function is called to let the driver specify how data
+ *    for a particular image of size width by height should be stored.
+ *    Sometimes only the size and corrected width and height are needed. In
+ *    that case pitches and offsets are NULL.
+ *
+ * Results:
+ *    The size of the memory required for the image, or -1 on error.
+ *
+ * Side effects:
+ *    None.
+ *
+ *-----------------------------------------------------------------------------
+ */
+
+static int
+vmw_xv_query_image_attributes(ScrnInfoPtr pScrn, int format,
+                              unsigned short *width, unsigned short *height,
+                              int *pitches, int *offsets)
+{
+    INT32 size, tmp;
+
+    if (*width > VMWARE_VID_MAX_WIDTH) {
+        *width = VMWARE_VID_MAX_WIDTH;
+    }
+    if (*height > VMWARE_VID_MAX_HEIGHT) {
+        *height = VMWARE_VID_MAX_HEIGHT;
+    }
+
+    *width = (*width + 1) & ~1;
+    if (offsets != NULL) {
+        offsets[0] = 0;
+    }
+
+    switch (format) {
+       case FOURCC_YV12:
+           *height = (*height + 1) & ~1;
+           size = (*width + 3) & ~3;
+           if (pitches) {
+               pitches[0] = size;
+           }
+           size *= *height;
+           if (offsets) {
+               offsets[1] = size;
+           }
+           tmp = ((*width >> 1) + 3) & ~3;
+           if (pitches) {
+                pitches[1] = pitches[2] = tmp;
+           }
+           tmp *= (*height >> 1);
+           size += tmp;
+           if (offsets) {
+               offsets[2] = size;
+           }
+           size += tmp;
+           break;
+       case FOURCC_UYVY:
+       case FOURCC_YUY2:
+           size = *width * 2;
+           if (pitches) {
+               pitches[0] = size;
+           }
+           size *= *height;
+           break;
+       default:
+           debug_printf("Query for invalid video format %d\n", format);
+           return -1;
+    }
+    return size;
+}
+
+
+/*
+ *-----------------------------------------------------------------------------
+ *
+ * vmw_xv_set_port_attribute --
+ *
+ *    From the spec: A port may have particular attributes such as colorKey, hue,
+ *    saturation, brightness or contrast. Xv clients set these
+ *    attribute values by sending attribute strings (Atoms) to the server.
+ *
+ * Results:
+ *    Success if the attribute exists and XvBadAlloc otherwise.
+ *
+ * Side effects:
+ *    The respective attribute gets the new value.
+ *
+ *-----------------------------------------------------------------------------
+ */
+
+static int
+vmw_xv_set_port_attribute(ScrnInfoPtr pScrn, Atom attribute,
+                          INT32 value, pointer data)
+{
+    struct vmwgfx_overlay_port *port = data;
+    Atom xvColorKey = MAKE_ATOM("XV_COLORKEY");
+    Atom xvAutoPaint = MAKE_ATOM("XV_AUTOPAINT_COLORKEY");
+
+    if (attribute == xvColorKey) {
+        debug_printf("%s: Set colorkey:0x%x\n", __func__, (unsigned)value);
+        port->colorKey = value;
+    } else if (attribute == xvAutoPaint) {
+        debug_printf("%s: Set autoPaint: %s\n", __func__, value? "TRUE": "FALSE");
+        port->isAutoPaintColorkey = value;
+    } else {
+        return XvBadAlloc;
+    }
+
+    return Success;
+}
+
+
+/*
+ *-----------------------------------------------------------------------------
+ *
+ * vmw_xv_get_port_attribute --
+ *
+ *    From the spec: A port may have particular attributes such as hue,
+ *    saturation, brightness or contrast. Xv clients get these
+ *    attribute values by sending attribute strings (Atoms) to the server
+ *
+ * Results:
+ *    Success if the attribute exists and XvBadAlloc otherwise.
+ *
+ * Side effects:
+ *    "value" contains the requested attribute on success.
+ *
+ *-----------------------------------------------------------------------------
+ */
+
+static int
+vmw_xv_get_port_attribute(ScrnInfoPtr pScrn, Atom attribute,
+                          INT32 *value, pointer data)
+{
+    struct vmwgfx_overlay_port *port = data;
+    Atom xvColorKey = MAKE_ATOM("XV_COLORKEY");
+    Atom xvAutoPaint = MAKE_ATOM("XV_AUTOPAINT_COLORKEY");
+
+    if (attribute == xvColorKey) {
+        *value = port->colorKey;
+    } else if (attribute == xvAutoPaint) {
+        *value = port->isAutoPaintColorkey;
+    } else {
+        return XvBadAlloc;
+    }
+
+    return Success;
+}
+
+
+/*
+ *-----------------------------------------------------------------------------
+ *
+ * vmw_xv_query_best_size --
+ *
+ *    From the spec: QueryBestSize provides the client with a way to query what
+ *    the destination dimensions would end up being if they were to request
+ *    that an area vid_w by vid_h from the video stream be scaled to rectangle
+ *    of drw_w by drw_h on the screen. Since it is not expected that all
+ *    hardware will be able to get the target dimensions exactly, it is
+ *    important that the driver provide this function.
+ *
+ *    This function seems to never be called, but to be on the safe side
+ *    we apply the same logic that QueryImageAttributes has for width
+ *    and height.
+ *
+ * Results:
+ *    None.
+ *
+ * Side effects:
+ *    None.
+ *
+ *-----------------------------------------------------------------------------
+ */
+
+static void
+vmw_xv_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)
+{
+    *p_w = (drw_w + 1) & ~1;
+    *p_h = drw_h;
+
+    return;
+}