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Diffstat (limited to 'src/gallium/state_trackers/xorg/xvmc/context.c')
-rw-r--r--src/gallium/state_trackers/xorg/xvmc/context.c252
1 files changed, 252 insertions, 0 deletions
diff --git a/src/gallium/state_trackers/xorg/xvmc/context.c b/src/gallium/state_trackers/xorg/xvmc/context.c
new file mode 100644
index 0000000000..c8a389385a
--- /dev/null
+++ b/src/gallium/state_trackers/xorg/xvmc/context.c
@@ -0,0 +1,252 @@
+/**************************************************************************
+ *
+ * Copyright 2009 Younes Manton.
+ * 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.
+ *
+ **************************************************************************/
+
+#include <assert.h>
+#include <X11/Xlibint.h>
+#include <X11/extensions/XvMClib.h>
+#include <pipe/p_screen.h>
+#include <pipe/p_video_context.h>
+#include <pipe/p_video_state.h>
+#include <pipe/p_state.h>
+#include <vl_winsys.h>
+#include <util/u_memory.h>
+#include <util/u_debug.h>
+#include <vl/vl_csc.h>
+#include "xvmc_private.h"
+
+static Status Validate(Display *dpy, XvPortID port, int surface_type_id,
+ unsigned int width, unsigned int height, int flags,
+ bool *found_port, int *screen, int *chroma_format,
+ int *mc_type, int *surface_flags)
+{
+ bool found_surface = false;
+ XvAdaptorInfo *adaptor_info;
+ unsigned int num_adaptors;
+ int num_types;
+ unsigned int max_width, max_height;
+ Status ret;
+
+ assert(dpy);
+ assert(found_port);
+ assert(screen);
+ assert(chroma_format);
+ assert(mc_type);
+ assert(surface_flags);
+
+ *found_port = false;
+
+ for (unsigned int i = 0; i < XScreenCount(dpy); ++i) {
+ ret = XvQueryAdaptors(dpy, XRootWindow(dpy, i), &num_adaptors, &adaptor_info);
+ if (ret != Success)
+ return ret;
+
+ for (unsigned int j = 0; j < num_adaptors && !*found_port; ++j) {
+ for (unsigned int k = 0; k < adaptor_info[j].num_ports && !*found_port; ++k) {
+ XvMCSurfaceInfo *surface_info;
+
+ if (adaptor_info[j].base_id + k != port)
+ continue;
+
+ *found_port = true;
+
+ surface_info = XvMCListSurfaceTypes(dpy, adaptor_info[j].base_id, &num_types);
+ if (!surface_info) {
+ XvFreeAdaptorInfo(adaptor_info);
+ return BadAlloc;
+ }
+
+ for (unsigned int l = 0; l < num_types && !found_surface; ++l) {
+ if (surface_info[l].surface_type_id != surface_type_id)
+ continue;
+
+ found_surface = true;
+ max_width = surface_info[l].max_width;
+ max_height = surface_info[l].max_height;
+ *chroma_format = surface_info[l].chroma_format;
+ *mc_type = surface_info[l].mc_type;
+ *surface_flags = surface_info[l].flags;
+ *screen = i;
+ }
+
+ XFree(surface_info);
+ }
+ }
+
+ XvFreeAdaptorInfo(adaptor_info);
+ }
+
+ if (!*found_port)
+ return XvBadPort;
+ if (!found_surface)
+ return BadMatch;
+ if (width > max_width || height > max_height)
+ return BadValue;
+ if (flags != XVMC_DIRECT && flags != 0)
+ return BadValue;
+
+ return Success;
+}
+
+static enum pipe_video_profile ProfileToPipe(int xvmc_profile)
+{
+ if (xvmc_profile & XVMC_MPEG_1)
+ assert(0);
+ if (xvmc_profile & XVMC_MPEG_2)
+ return PIPE_VIDEO_PROFILE_MPEG2_MAIN;
+ if (xvmc_profile & XVMC_H263)
+ assert(0);
+ if (xvmc_profile & XVMC_MPEG_4)
+ assert(0);
+
+ assert(0);
+
+ return -1;
+}
+
+static enum pipe_video_chroma_format FormatToPipe(int xvmc_format)
+{
+ switch (xvmc_format) {
+ case XVMC_CHROMA_FORMAT_420:
+ return PIPE_VIDEO_CHROMA_FORMAT_420;
+ case XVMC_CHROMA_FORMAT_422:
+ return PIPE_VIDEO_CHROMA_FORMAT_422;
+ case XVMC_CHROMA_FORMAT_444:
+ return PIPE_VIDEO_CHROMA_FORMAT_444;
+ default:
+ assert(0);
+ }
+
+ return -1;
+}
+
+Status XvMCCreateContext(Display *dpy, XvPortID port, int surface_type_id,
+ int width, int height, int flags, XvMCContext *context)
+{
+ bool found_port;
+ int scrn;
+ int chroma_format;
+ int mc_type;
+ int surface_flags;
+ Status ret;
+ struct pipe_screen *screen;
+ struct pipe_video_context *vpipe;
+ XvMCContextPrivate *context_priv;
+ float csc[16];
+
+ assert(dpy);
+
+ if (!context)
+ return XvMCBadContext;
+
+ ret = Validate(dpy, port, surface_type_id, width, height, flags,
+ &found_port, &scrn, &chroma_format, &mc_type, &surface_flags);
+
+ /* Success and XvBadPort have the same value */
+ if (ret != Success || !found_port)
+ return ret;
+
+ /* XXX: Current limits */
+ if (chroma_format != XVMC_CHROMA_FORMAT_420) {
+ debug_printf("[XvMCg3dvl] Cannot decode requested surface type. Unsupported chroma format.\n");
+ return BadImplementation;
+ }
+ if (mc_type != (XVMC_MOCOMP | XVMC_MPEG_2)) {
+ debug_printf("[XvMCg3dvl] Cannot decode requested surface type. Non-MPEG2/Mocomp acceleration unsupported.\n");
+ return BadImplementation;
+ }
+ if (!(surface_flags & XVMC_INTRA_UNSIGNED)) {
+ debug_printf("[XvMCg3dvl] Cannot decode requested surface type. Signed intra unsupported.\n");
+ return BadImplementation;
+ }
+
+ context_priv = CALLOC(1, sizeof(XvMCContextPrivate));
+ if (!context_priv)
+ return BadAlloc;
+
+ /* TODO: Reuse screen if process creates another context */
+ screen = vl_screen_create(dpy, scrn);
+
+ if (!screen) {
+ FREE(context_priv);
+ return BadAlloc;
+ }
+
+ vpipe = vl_video_create(dpy, scrn, screen, ProfileToPipe(mc_type),
+ FormatToPipe(chroma_format), width, height);
+
+ if (!vpipe) {
+ screen->destroy(screen);
+ FREE(context_priv);
+ return BadAlloc;
+ }
+
+ /* TODO: Define some Xv attribs to allow users to specify color standard, procamp */
+ vl_csc_get_matrix
+ (
+ debug_get_bool_option("G3DVL_NO_CSC", FALSE) ?
+ VL_CSC_COLOR_STANDARD_IDENTITY : VL_CSC_COLOR_STANDARD_BT_601,
+ NULL, true, csc
+ );
+ vpipe->set_csc_matrix(vpipe, csc);
+
+ context_priv->vpipe = vpipe;
+
+ context->context_id = XAllocID(dpy);
+ context->surface_type_id = surface_type_id;
+ context->width = width;
+ context->height = height;
+ context->flags = flags;
+ context->port = port;
+ context->privData = context_priv;
+
+ SyncHandle();
+
+ return Success;
+}
+
+Status XvMCDestroyContext(Display *dpy, XvMCContext *context)
+{
+ struct pipe_screen *screen;
+ struct pipe_video_context *vpipe;
+ XvMCContextPrivate *context_priv;
+
+ assert(dpy);
+
+ if (!context || !context->privData)
+ return XvMCBadContext;
+
+ context_priv = context->privData;
+ vpipe = context_priv->vpipe;
+ pipe_surface_reference(&context_priv->backbuffer, NULL);
+ screen = vpipe->screen;
+ vpipe->destroy(vpipe);
+ screen->destroy(screen);
+ FREE(context_priv);
+ context->privData = NULL;
+
+ return Success;
+}
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