st/xorg: start working on the Xv acceleration code

src/gallium/state_trackers/xorg/xorg_tracker.h

@@ -151,5 +151,11 @@ crtc_cursor_destroy(xf86CrtcPtr crtc);
 void
 output_init(ScrnInfoPtr pScrn);
 
+/***********************************************************************
+ * xorg_xv.c
+ */
+void
+xorg_init_video(ScreenPtr pScreen);
+
 
 #endif /* _XORG_TRACKER_H_ */

src/gallium/state_trackers/xorg/xorg_xv.c

@@ -0,0 +1,212 @@
+#include "xorg_tracker.h"
+
+#include <xf86xv.h>
+#include <X11/extensions/Xv.h>
+#include <fourcc.h>
+
+/*XXX get these from pipe's texture limits */
+#define IMAGE_MAX_WIDTH		2048
+#define IMAGE_MAX_HEIGHT	2048
+
+#define MAKE_ATOM(a) MakeAtom(a, sizeof(a) - 1, TRUE)
+
+static Atom xvBrightness, xvContrast;
+
+#define NUM_TEXTURED_ATTRIBUTES 2
+static XF86AttributeRec TexturedAttributes[NUM_TEXTURED_ATTRIBUTES] = {
+   {XvSettable | XvGettable, -128, 127, "XV_BRIGHTNESS"},
+   {XvSettable | XvGettable, 0, 255, "XV_CONTRAST"}
+};
+
+#define NUM_FORMATS 3
+static XF86VideoFormatRec Formats[NUM_FORMATS] = {
+   {15, TrueColor}, {16, TrueColor}, {24, TrueColor}
+};
+
+static XF86VideoEncodingRec DummyEncoding[1] = {
+   {
+      0,
+      "XV_IMAGE",
+      IMAGE_MAX_WIDTH, IMAGE_MAX_HEIGHT,
+      {1, 1}
+   }
+};
+
+#define NUM_IMAGES 2
+static XF86ImageRec Images[NUM_IMAGES] = {
+   XVIMAGE_UYVY,
+   XVIMAGE_YUY2,
+};
+
+struct xorg_xv_port_priv {
+   RegionRec clip;
+};
+
+
+static void
+stop_video(ScrnInfoPtr pScrn, pointer data, Bool shutdown)
+{
+}
+
+static int
+set_port_attribute(ScrnInfoPtr pScrn,
+                   Atom attribute, INT32 value, pointer data)
+{
+   return 0;
+}
+
+static int
+get_port_attribute(ScrnInfoPtr pScrn,
+                   Atom attribute, INT32 * value, pointer data)
+{
+   return 0;
+}
+
+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)
+{
+}
+
+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)
+{
+   return 0;
+}
+
+static int
+query_image_attributes(ScrnInfoPtr pScrn,
+                       int id,
+                       unsigned short *w, unsigned short *h,
+                       int *pitches, int *offsets)
+{
+   return 0;
+}
+
+static struct xorg_xv_port_priv *
+port_priv_create(ScreenPtr pScreen)
+{
+   /*ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];*/
+   /*modesettingPtr ms = modesettingPTR(pScrn);*/
+   struct xorg_xv_port_priv *priv = NULL;
+
+   priv = calloc(1, sizeof(struct xorg_xv_port_priv));
+
+   if (!priv)
+      return NULL;
+
+    REGION_NULL(pScreen, &priv->clip);
+
+   return priv;
+}
+
+static XF86VideoAdaptorPtr
+xorg_setup_textured_adapter(ScreenPtr pScreen)
+{
+   /*ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];*/
+   /*modesettingPtr ms = modesettingPTR(pScrn);*/
+   XF86VideoAdaptorPtr adapt;
+   XF86AttributePtr attrs;
+   DevUnion *dev_unions;
+   int nports = 16, i;
+   int nattributes;
+
+   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 = "Gallium3D Textured Video";
+   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(pScreen);
+
+      adapt->pPortPrivates[i].ptr = (pointer) (priv);
+      adapt->nPorts++;
+   }
+
+   return adapt;
+}
+
+void
+xorg_init_video(ScreenPtr pScreen)
+{
+   ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
+   /*modesettingPtr ms = modesettingPTR(pScrn);*/
+   XF86VideoAdaptorPtr *adaptors, *new_adaptors = NULL;
+   XF86VideoAdaptorPtr textured_adapter;
+   int num_adaptors;
+
+   num_adaptors = xf86XVListGenericAdaptors(pScrn, &adaptors);
+   new_adaptors = malloc((num_adaptors + 1) * 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");
+
+   textured_adapter = xorg_setup_textured_adapter(pScreen);
+
+   debug_assert(textured_adapter);
+
+   if (textured_adapter) {
+      adaptors[num_adaptors++] = textured_adapter;
+   }
+
+   if (num_adaptors) {
+      xf86XVScreenInit(pScreen, adaptors, num_adaptors);
+   } else {
+      xf86DrvMsg(pScrn->scrnIndex, X_WARNING,
+                 "Disabling Xv because no adaptors could be initialized.\n");
+   }
+
+   free(adaptors);
+}