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|
/*
* Copyright © 2007 Intel Corporation
*
* 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 (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 NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS 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.
*
* Authors:
* Zhenyu Wang <zhenyu.z.wang@intel.com>
*
*/
#include "intel_xvmc.h"
struct _intel_xvmc_driver *xvmc_driver = NULL;
static int error_base;
static int event_base;
/*
* Function: XvMCCreateContext
* Description: Create a XvMC context for the given surface parameters.
* Arguments:
* display - Connection to the X server.
* port - XvPortID to use as avertised by the X connection.
* surface_type_id - Unique identifier for the Surface type.
* width - Width of the surfaces.
* height - Height of the surfaces.
* flags - one or more of the following
* XVMC_DIRECT - A direct rendered context is requested.
* Notes: surface_type_id and width/height parameters must match those
* returned by XvMCListSurfaceTypes.
* Returns: Status
*/
Status XvMCCreateContext(Display *display, XvPortID port,
int surface_type_id, int width, int height,
int flags, XvMCContext *context)
{
Status ret;
drm_sarea_t *pSAREA;
char *curBusID;
CARD32 *priv_data = NULL;
struct _intel_xvmc_common *comm;
drm_magic_t magic;
int major, minor;
int priv_count;
int isCapable;
int screen = DefaultScreen(display);
/* Verify Obvious things first */
if (!display || !context)
return BadValue;
if (!(flags & XVMC_DIRECT)) {
XVMC_ERR("Indirect Rendering not supported! Using Direct.");
return BadValue;
}
/* Limit use to root for now */
/* FIXME: remove it ??? */
/*
if (geteuid()) {
printf("Use of XvMC on i915 is currently limited to root\n");
return BadAccess;
}
*/
/*
Width, Height, and flags are checked against surface_type_id
and port for validity inside the X server, no need to check
here.
*/
context->surface_type_id = surface_type_id;
context->width = (unsigned short)((width + 15) & ~15);
context->height = (unsigned short)((height + 15) & ~15);
context->flags = flags;
context->port = port;
if (!XvMCQueryExtension(display, &event_base, &error_base)) {
XVMC_ERR("XvMCExtension is not available!");
return BadValue;
}
ret = XvMCQueryVersion(display, &major, &minor);
if (ret) {
XVMC_ERR("XvMCQueryVersion Failed, unable to determine protocol version.");
return ret;
}
/* XXX: major and minor could be checked in future for XvMC
* protocol capability (i.e H.264/AVC decode available)
*/
/*
Pass control to the X server to create a drm_context_t for us and
validate the with/height and flags.
*/
if ((ret = _xvmc_create_context(display, context, &priv_count, &priv_data))) {
XVMC_ERR("Unable to create XvMC Context.");
return ret;
}
comm = (struct _intel_xvmc_common *)priv_data;
XVMC_INFO("hw xvmc type %d", comm->type);
//XXX: how to handle different driver types
if (xvmc_driver == NULL || xvmc_driver->type != comm->type) {
switch (comm->type) {
case XVMC_I915_MPEG2_MC:
xvmc_driver = &i915_xvmc_mc_driver;
break;
case XVMC_I965_MPEG2_MC:
case XVMC_I945_MPEG2_VLD:
case XVMC_I965_MPEG2_VLD:
default:
XVMC_ERR("unimplemented xvmc type %d", comm->type);
free(priv_data);
priv_data = NULL;
return BadValue;
}
} else {
XVMC_ERR("wrong hw xvmc type returned\n");
free(priv_data);
priv_data = NULL;
return BadValue;
}
if (xvmc_driver == NULL || xvmc_driver->type != comm->type) {
XVMC_ERR("fail to load xvmc driver for type %d\n", comm->type);
return BadValue;
}
xvmc_driver->sarea_size = comm->sarea_size;
ret = uniDRIQueryDirectRenderingCapable(display, screen,
&isCapable);
if (!ret || !isCapable) {
XVMC_ERR("Direct Rendering is not available on this system!");
free(priv_data);
return BadValue;
}
if (!uniDRIOpenConnection(display, screen,
&xvmc_driver->hsarea, &curBusID)) {
XVMC_ERR("Could not open DRI connection to X server!");
free(priv_data);
return BadValue;
}
strncpy(xvmc_driver->busID, curBusID, 20);
xvmc_driver->busID[20] = '\0';
free(curBusID);
/* Open DRI Device */
if((xvmc_driver->fd = drmOpen("i915", NULL)) < 0) {
XVMC_ERR("DRM Device could not be opened.");
//(xvmc_driver->fini)();
xvmc_driver = NULL;
free(priv_data);
return BadValue;
}
/* Get magic number */
drmGetMagic(xvmc_driver->fd, &magic);
// context->flags = (unsigned long)magic;
if (!uniDRIAuthConnection(display, screen, magic)) {
XVMC_ERR("[XvMC]: X server did not allow DRI. Check permissions.");
//(xvmc_driver->fini)();
xvmc_driver = NULL;
free(priv_data);
return BadAlloc;
}
/*
* Map DRI Sarea. we always want it right?
*/
if (drmMap(xvmc_driver->fd, xvmc_driver->hsarea,
xvmc_driver->sarea_size, &xvmc_driver->sarea_address) < 0) {
XVMC_ERR("Unable to map DRI SAREA.\n");
//(xvmc_driver->fini)();
xvmc_driver = NULL;
free(priv_data);
return BadAlloc;
}
/* call driver hook.
* driver hook should free priv_data after return if success.*/
ret = (xvmc_driver->create_context)(display, context, priv_count, priv_data);
if (ret) {
XVMC_ERR("driver create context failed\n");
free(priv_data);
drmUnmap(xvmc_driver->sarea_address, xvmc_driver->sarea_size);
return ret;
}
/* FIXME batch buffer */
//intelInitBatchBuffer(xvmc_driver);
return Success;
}
/***************************************************************************
// Function: XvMCDestroyContext
// Description: Destorys the specified context.
//
// Arguments:
// display - Specifies the connection to the server.
// context - The context to be destroyed.
//
// Returns: Status
***************************************************************************/
Status XvMCDestroyContext(Display *display, XvMCContext *context)
{
Status ret;
if (!display || !context)
return XvMCBadContext;
ret = (xvmc_driver->destroy_context)(display, context);
if (ret) {
XVMC_ERR("destroy context fail\n");
return ret;
}
/* Pass Control to the X server to destroy the drm_context_t */
//XXX move generic destroy method here
//i915_release_resource(display,context);
return Success;
}
/***************************************************************************
// Function: XvMCCreateSurface
***************************************************************************/
Status XvMCCreateSurface(Display *display, XvMCContext *context, XvMCSurface *surface)
{
Status ret;
// i915XvMCContext *pI915XvMC;
// i915XvMCSurface *pI915Surface;
// I915XvMCCreateSurfaceRec *tmpComm = NULL;
// int priv_count;
// uint *priv_data;
if (!display || !context)
return XvMCBadContext;
if (!surface)
return XvMCBadSurface;
ret = (xvmc_driver->create_surface)(display, context, surface);
if (ret) {
XVMC_ERR("create surface failed\n");
return ret;
}
#if 0
if (!(pI915XvMC = context->privData))
return (error_base + XvMCBadContext);
PPTHREAD_MUTEX_LOCK(pI915XvMC);
surface->privData = (i915XvMCSurface *)malloc(sizeof(i915XvMCSurface));
if (!(pI915Surface = surface->privData)) {
PPTHREAD_MUTEX_UNLOCK(pI915XvMC);
return BadAlloc;
}
/* Initialize private values */
pI915Surface->last_render = 0;
pI915Surface->last_flip = 0;
pI915Surface->yStride = pI915XvMC->yStride;
pI915Surface->uvStride = pI915XvMC->uvStride;
pI915Surface->width = context->width;
pI915Surface->height = context->height;
pI915Surface->privContext = pI915XvMC;
pI915Surface->privSubPic = NULL;
pI915Surface->srf.map = NULL;
XLockDisplay(display);
if ((ret = _xvmc_create_surface(display, context, surface,
&priv_count, &priv_data))) {
XUnlockDisplay(display);
XVMC_ERR("Unable to create XvMCSurface.");
free(pI915Surface);
surface->privData = NULL;
PPTHREAD_MUTEX_UNLOCK(pI915XvMC);
return ret;
}
XUnlockDisplay(display);
if (priv_count != (sizeof(I915XvMCCreateSurfaceRec) >> 2)) {
XVMC_ERR("_xvmc_create_surface() returned incorrect data size!");
XVMC_INFO("\tExpected %d, got %d",
(int)(sizeof(I915XvMCCreateSurfaceRec) >> 2), priv_count);
_xvmc_destroy_surface(display, surface);
free(priv_data);
free(pI915Surface);
surface->privData = NULL;
PPTHREAD_MUTEX_UNLOCK(pI915XvMC);
return BadAlloc;
}
tmpComm = (I915XvMCCreateSurfaceRec *)priv_data;
pI915Surface->srfNo = tmpComm->srfno;
pI915Surface->srf.handle = tmpComm->srf.handle;
pI915Surface->srf.offset = tmpComm->srf.offset;
pI915Surface->srf.size = tmpComm->srf.size;
free(priv_data);
if (drmMap(pI915XvMC->fd,
pI915Surface->srf.handle,
pI915Surface->srf.size,
(drmAddress *)&pI915Surface->srf.map) != 0) {
_xvmc_destroy_surface(display, surface);
free(pI915Surface);
surface->privData = NULL;
PPTHREAD_MUTEX_UNLOCK(pI915XvMC);
return BadAlloc;
}
pI915XvMC->ref++;
PPTHREAD_MUTEX_UNLOCK(pI915XvMC);
#endif
return Success;
}
/***************************************************************************
// Function: XvMCDestroySurface
***************************************************************************/
Status XvMCDestroySurface(Display *display, XvMCSurface *surface)
{
// i915XvMCSurface *pI915Surface;
// i915XvMCContext *pI915XvMC;
if (!display || !surface)
return XvMCBadSurface;
(xvmc_driver->destroy_surface)(display, surface);
#if 0
if (!(pI915Surface = surface->privData))
return (error_base + XvMCBadSurface);
if (!(pI915XvMC = pI915Surface->privContext))
return (error_base + XvMCBadSurface);
if (pI915Surface->last_flip)
XvMCSyncSurface(display,surface);
if (pI915Surface->srf.map)
drmUnmap(pI915Surface->srf.map, pI915Surface->srf.size);
XLockDisplay(display);
_xvmc_destroy_surface(display, surface);
XUnlockDisplay(display);
free(pI915Surface);
surface->privData = NULL;
pI915XvMC->ref--;
#endif
return Success;
}
/***************************************************************************
// Function: XvMCCreateBlocks
***************************************************************************/
Status XvMCCreateBlocks(Display *display, XvMCContext *context,
unsigned int num_blocks,
XvMCBlockArray *block)
{
if (!display || !context || !num_blocks || !block)
return BadValue;
memset(block, 0, sizeof(XvMCBlockArray));
if (!(block->blocks = (short *)malloc(num_blocks << 6 * sizeof(short))))
return BadAlloc;
block->num_blocks = num_blocks;
block->context_id = context->context_id;
block->privData = NULL;
return Success;
}
/***************************************************************************
// Function: XvMCDestroyBlocks
***************************************************************************/
Status XvMCDestroyBlocks(Display *display, XvMCBlockArray *block)
{
if (!display || block)
return BadValue;
if (block->blocks)
free(block->blocks);
block->context_id = 0;
block->num_blocks = 0;
block->blocks = NULL;
block->privData = NULL;
return Success;
}
/***************************************************************************
// Function: XvMCCreateMacroBlocks
***************************************************************************/
Status XvMCCreateMacroBlocks(Display *display, XvMCContext *context,
unsigned int num_blocks,
XvMCMacroBlockArray *blocks)
{
if (!display || !context || !blocks || !num_blocks)
return BadValue;
memset(blocks, 0, sizeof(XvMCMacroBlockArray));
blocks->macro_blocks = (XvMCMacroBlock *)malloc(num_blocks * sizeof(XvMCMacroBlock));
if (!blocks->macro_blocks)
return BadAlloc;
blocks->num_blocks = num_blocks;
blocks->context_id = context->context_id;
blocks->privData = NULL;
return Success;
}
/***************************************************************************
// Function: XvMCDestroyMacroBlocks
***************************************************************************/
Status XvMCDestroyMacroBlocks(Display *display, XvMCMacroBlockArray *block)
{
if (!display || !block)
return BadValue;
if (block->macro_blocks)
free(block->macro_blocks);
block->context_id = 0;
block->num_blocks = 0;
block->macro_blocks = NULL;
block->privData = NULL;
return Success;
}
/***************************************************************************
// Function: XvMCRenderSurface
// Description: This function does the actual HWMC. Given a list of
// macroblock structures it dispatched the hardware commands to execute
// them.
***************************************************************************/
Status XvMCRenderSurface(Display *display, XvMCContext *context,
unsigned int picture_structure,
XvMCSurface *target_surface,
XvMCSurface *past_surface,
XvMCSurface *future_surface,
unsigned int flags,
unsigned int num_macroblocks,
unsigned int first_macroblock,
XvMCMacroBlockArray *macroblock_array,
XvMCBlockArray *blocks)
{
Status ret;
if (!display || !context) {
XVMC_ERR("Invalid Display, Context or Target!");
return XvMCBadContext;
}
if (!target_surface)
return XvMCBadSurface;
ret = (xvmc_driver->render_surface)(display, context, picture_structure,
target_surface, past_surface, future_surface, flags,
num_macroblocks, first_macroblock, macroblock_array,
blocks);
if (ret) {
XVMC_ERR("render surface fail\n");
return ret;
}
#if 0
int i;
int picture_coding_type = MPEG_I_PICTURE;
/* correction data buffer */
char *corrdata_ptr;
int corrdata_size = 0;
/* Block Pointer */
short *block_ptr;
/* Current Macroblock Pointer */
XvMCMacroBlock *mb;
i915XvMCSurface *privTarget = NULL;
i915XvMCSurface *privFuture = NULL;
i915XvMCSurface *privPast = NULL;
i915XvMCContext *pI915XvMC = NULL;
/* Check Parameters for validity */
if (!display || !context || !target_surface) {
XVMC_ERR("Invalid Display, Context or Target!");
return BadValue;
}
if (!num_macroblocks)
return Success;
if (!macroblock_array || !blocks) {
XVMC_ERR("Invalid block data!");
return BadValue;
}
if (macroblock_array->num_blocks < (num_macroblocks + first_macroblock)) {
XVMC_ERR("Too many macroblocks requested for MB array size.");
return BadValue;
}
if (!(pI915XvMC = context->privData))
return (error_base + XvMCBadContext);
if (!(privTarget = target_surface->privData))
return (error_base + XvMCBadSurface);
/* Test For YV12 Surface */
if (context->surface_type_id != FOURCC_YV12) {
XVMC_ERR("HWMC only possible on YV12 Surfaces.");
return BadValue;
}
/* P Frame Test */
if (!past_surface) {
/* Just to avoid some ifs later. */
privPast = privTarget;
} else {
if (!(privPast = past_surface->privData)) {
XVMC_ERR("Invalid Past Surface!");
return (error_base + XvMCBadSurface);
}
picture_coding_type = MPEG_P_PICTURE;
}
/* B Frame Test */
if (!future_surface) {
privFuture = privPast; // privTarget;
} else {
if (!past_surface) {
XVMC_ERR("No Past Surface!");
return BadValue;
}
if (!(privFuture = future_surface->privData)) {
XVMC_ERR("Invalid Future Surface!");
return (error_base + XvMCBadSurface);
}
picture_coding_type = MPEG_B_PICTURE;
}
LOCK_HARDWARE(pI915XvMC);
corrdata_ptr = pI915XvMC->corrdata.map;
corrdata_size = 0;
for (i = first_macroblock; i < (num_macroblocks + first_macroblock); i++) {
int bspm = 0;
mb = ¯oblock_array->macro_blocks[i];
block_ptr = &(blocks->blocks[mb->index << 6]);
/* Lockup can happen if the coordinates are too far out of range */
if (mb->x > (target_surface->width >> 4)) {
mb->x = 0;
XVMC_INFO("reset x");
}
if (mb->y > (target_surface->height >> 4)) {
mb->y = 0;
XVMC_INFO("reset y");
}
/* Catch no pattern case */
if (!(mb->macroblock_type & XVMC_MB_TYPE_PATTERN) &&
!(mb->macroblock_type & XVMC_MB_TYPE_INTRA) &&
mb->coded_block_pattern) {
mb->coded_block_pattern = 0;
XVMC_INFO("no coded blocks present!");
}
bspm = mb_bytes[mb->coded_block_pattern];
if (!bspm)
continue;
corrdata_size += bspm;
if (corrdata_size > pI915XvMC->corrdata.size) {
XVMC_ERR("correction data buffer overflow.");
break;
}
memcpy(corrdata_ptr, block_ptr, bspm);
corrdata_ptr += bspm;
}
i915_flush(pI915XvMC, 1, 0);
// i915_mc_invalidate_subcontext_buffers(context, BLOCK_SIS | BLOCK_DIS | BLOCK_SSB
// | BLOCK_MSB | BLOCK_PSP | BLOCK_PSC);
i915_mc_sampler_state_buffer(context);
i915_mc_pixel_shader_program_buffer(context);
i915_mc_pixel_shader_constants_buffer(context);
i915_mc_one_time_state_initialization(context);
i915_mc_static_indirect_state_buffer(context, target_surface,
picture_structure, flags,
picture_coding_type);
i915_mc_map_state_buffer(context, privTarget, privPast, privFuture);
i915_mc_load_sis_msb_buffers(context);
i915_mc_mpeg_set_origin(context, ¯oblock_array->macro_blocks[first_macroblock]);
for (i = first_macroblock; i < (num_macroblocks + first_macroblock); i++) {
mb = ¯oblock_array->macro_blocks[i];
/* Intra Blocks */
if (mb->macroblock_type & XVMC_MB_TYPE_INTRA) {
i915_mc_mpeg_macroblock_ipicture(context, mb);
} else if ((picture_structure & XVMC_FRAME_PICTURE) == XVMC_FRAME_PICTURE) { /* Frame Picture */
switch (mb->motion_type & 3) {
case XVMC_PREDICTION_FIELD: /* Field Based */
i915_mc_mpeg_macroblock_2fbmv(context, mb, picture_structure);
break;
case XVMC_PREDICTION_FRAME: /* Frame Based */
i915_mc_mpeg_macroblock_1fbmv(context, mb);
break;
case XVMC_PREDICTION_DUAL_PRIME: /* Dual Prime */
i915_mc_mpeg_macroblock_2fbmv(context, mb, picture_structure);
break;
default: /* No Motion Type */
renderError();
break;
}
} else { /* Frame Picture */
switch (mb->motion_type & 3) {
case XVMC_PREDICTION_FIELD: /* Field Based */
i915_mc_mpeg_macroblock_1fbmv(context, mb);
break;
case XVMC_PREDICTION_16x8: /* 16x8 MC */
i915_mc_mpeg_macroblock_2fbmv(context, mb, picture_structure);
break;
case XVMC_PREDICTION_DUAL_PRIME: /* Dual Prime */
i915_mc_mpeg_macroblock_1fbmv(context, mb);
break;
default: /* No Motion Type */
renderError();
break;
}
} /* Field Picture */
}
intelFlushBatch(pI915XvMC, TRUE);
pI915XvMC->last_render = pI915XvMC->alloc.irq_emitted;
privTarget->last_render = pI915XvMC->last_render;
UNLOCK_HARDWARE(pI915XvMC);
#endif
return Success;
}
/***************************************************************************
// Function: XvMCPutSurface
// Description:
// Arguments:
// display: Connection to X server
// surface: Surface to be displayed
// draw: X Drawable on which to display the surface
// srcx: X coordinate of the top left corner of the region to be
// displayed within the surface.
// srcy: Y coordinate of the top left corner of the region to be
// displayed within the surface.
// srcw: Width of the region to be displayed.
// srch: Height of the region to be displayed.
// destx: X cordinate of the top left corner of the destination region
// in the drawable coordinates.
// desty: Y cordinate of the top left corner of the destination region
// in the drawable coordinates.
// destw: Width of the destination region.
// desth: Height of the destination region.
// flags: One or more of the following.
// XVMC_TOP_FIELD - Display only the Top field of the surface.
// XVMC_BOTTOM_FIELD - Display only the Bottom Field of the surface.
// XVMC_FRAME_PICTURE - Display both fields or frame.
//
// Info: Portions of this function derived from i915_video.c (XFree86)
//
// This function is organized so that we wait as long as possible before
// touching the overlay registers. Since we don't know that the last
// flip has happened yet we want to give the overlay as long as
// possible to catch up before we have to check on its progress. This
// makes it unlikely that we have to wait on the last flip.
***************************************************************************/
Status XvMCPutSurface(Display *display,XvMCSurface *surface,
Drawable draw, short srcx, short srcy,
unsigned short srcw, unsigned short srch,
short destx, short desty,
unsigned short destw, unsigned short desth,
int flags)
{
Status ret;
if (!display || !surface)
return XvMCBadSurface;
ret = (xvmc_driver->put_surface)(display, surface, draw, srcx, srcy,
srcw, srch, destx, desty, destw, desth, flags);
if (ret) {
XVMC_ERR("put surface fail\n");
return ret;
}
#if 0
i915XvMCContext *pI915XvMC;
i915XvMCSurface *pI915Surface;
i915XvMCSubpicture *pI915SubPic;
I915XvMCCommandBuffer buf;
// drawableInfo *drawInfo;
Status ret;
if (!display || !surface)
return BadValue;
if (!(pI915Surface = surface->privData))
return (error_base + XvMCBadSurface);
if (!(pI915XvMC = pI915Surface->privContext))
return (error_base + XvMCBadSurface);
PPTHREAD_MUTEX_LOCK(pI915XvMC);
/*
if (getDRIDrawableInfoLocked(pI915XvMC->drawHash, display,
pI915XvMC->screen, draw, 0, pI915XvMC->fd, pI915XvMC->hHWContext,
pI915XvMC->sarea_address, FALSE, &drawInfo, sizeof(*drawInfo))) {
PPTHREAD_MUTEX_UNLOCK(pI915XvMC);
return BadAccess;
}
*/
if (!pI915XvMC->haveXv) {
pI915XvMC->xvImage =
XvCreateImage(display, pI915XvMC->port, FOURCC_XVMC,
(char *)&buf, pI915Surface->width, pI915Surface->height);
pI915XvMC->gc = XCreateGC(display, draw, 0, 0);
pI915XvMC->haveXv = 1;
}
pI915XvMC->draw = draw;
pI915XvMC->xvImage->data = (char *)&buf;
buf.command = INTEL_XVMC_COMMAND_DISPLAY;
buf.ctxNo = pI915XvMC->ctxno;
buf.srfNo = pI915Surface->srfNo;
pI915SubPic = pI915Surface->privSubPic;
buf.subPicNo = (!pI915SubPic ? 0 : pI915SubPic->srfNo);
buf.real_id = FOURCC_YV12;
XLockDisplay(display);
if ((ret = XvPutImage(display, pI915XvMC->port, draw, pI915XvMC->gc,
pI915XvMC->xvImage, srcx, srcy, srcw, srch,
destx, desty, destw, desth))) {
XUnlockDisplay(display);
PPTHREAD_MUTEX_UNLOCK(pI915XvMC);
return ret;
}
XSync(display, 0);
XUnlockDisplay(display);
PPTHREAD_MUTEX_UNLOCK(pI915XvMC);
#endif
return Success;
}
/***************************************************************************
// Function: XvMCSyncSurface
// Arguments:
// display - Connection to the X server
// surface - The surface to synchronize
// Info:
// Returns: Status
***************************************************************************/
Status XvMCSyncSurface(Display *display, XvMCSurface *surface)
{
Status ret;
int stat = 0;
if (!display || !surface)
return XvMCBadSurface;
do {
ret = XvMCGetSurfaceStatus(display, surface, &stat);
} while (!ret && (stat & XVMC_RENDERING));
return ret;
}
/***************************************************************************
// Function: XvMCFlushSurface
// Description:
// This function commits pending rendering requests to ensure that they
// wll be completed in a finite amount of time.
// Arguments:
// display - Connection to X server
// surface - Surface to flush
// Returns: Status
***************************************************************************/
Status XvMCFlushSurface(Display * display, XvMCSurface *surface)
{
if (!display || !surface)
return XvMCBadSurface;
return Success;
}
/***************************************************************************
// Function: XvMCGetSurfaceStatus
// Description:
// Arguments:
// display: connection to X server
// surface: The surface to query
// stat: One of the Following
// XVMC_RENDERING - The last XvMCRenderSurface command has not
// completed.
// XVMC_DISPLAYING - The surface is currently being displayed or a
// display is pending.
***************************************************************************/
Status XvMCGetSurfaceStatus(Display *display, XvMCSurface *surface, int *stat)
{
Status ret;
if (!display || !surface || !stat)
return XvMCBadSurface;
ret = (xvmc_driver->get_surface_status)(display, surface, stat);
if (ret) {
XVMC_ERR("get surface status fail\n");
return ret;
}
#if 0
i915XvMCSurface *pI915Surface;
i915XvMCContext *pI915XvMC;
if (!display || !surface || !stat)
return BadValue;
*stat = 0;
if (!(pI915Surface = surface->privData))
return (error_base + XvMCBadSurface);
if (!(pI915XvMC = pI915Surface->privContext))
return (error_base + XvMCBadSurface);
// LOCK_HARDWARE(pI915XvMC);
PPTHREAD_MUTEX_LOCK(pI915XvMC);
if (pI915Surface->last_flip) {
/* This can not happen */
if (pI915XvMC->last_flip < pI915Surface->last_flip) {
XVMC_ERR("Context last flip is less than surface last flip.");
PPTHREAD_MUTEX_UNLOCK(pI915XvMC);
return BadValue;
}
/*
If the context has 2 or more flips after this surface it
cannot be displaying. Don't bother to check.
*/
if (!(pI915XvMC->last_flip > (pI915Surface->last_flip + 1))) {
/*
If this surface was the last flipped it is either displaying
or about to be so don't bother checking.
*/
if (pI915XvMC->last_flip == pI915Surface->last_flip) {
*stat |= XVMC_DISPLAYING;
}
}
}
if (pI915Surface->last_render &&
(pI915Surface->last_render > pI915XvMC->sarea->last_dispatch)) {
*stat |= XVMC_RENDERING;
}
// UNLOCK_HARDWARE(pI915XvMC);
PPTHREAD_MUTEX_UNLOCK(pI915XvMC);
#endif
return Success;
}
/***************************************************************************
//
// Surface manipulation functions
//
***************************************************************************/
/***************************************************************************
// Function: XvMCHideSurface
// Description: Stops the display of a surface.
// Arguments:
// display - Connection to the X server.
// surface - surface to be hidden.
//
// Returns: Status
***************************************************************************/
//XXX this seems broken now
Status XvMCHideSurface(Display *display, XvMCSurface *surface)
{
// i915XvMCSurface *pI915Surface;
// i915XvMCContext *pI915XvMC;
int stat = 0;
Status ret;
if (!display || !surface)
return XvMCBadSurface;
#if 0
if (!(pI915Surface = surface->privData))
return (error_base + XvMCBadSurface);
/* Get the associated context pointer */
if (!(pI915XvMC = pI915Surface->privContext))
return (error_base + XvMCBadSurface);
#endif
XvMCSyncSurface(display, surface);
/*
Get the status of the surface, if it is not currently displayed
we don't need to worry about it.
*/
if ((ret = XvMCGetSurfaceStatus(display, surface, &stat)) != Success)
return ret;
if (!(stat & XVMC_DISPLAYING))
return Success;
/* FIXME: */
return Success;
}
/***************************************************************************
//
// Functions that deal with subpictures
//
***************************************************************************/
/***************************************************************************
// Function: XvMCCreateSubpicture
// Description: This creates a subpicture by filling out the XvMCSubpicture
// structure passed to it and returning Success.
// Arguments:
// display - Connection to the X server.
// context - The context to create the subpicture for.
// subpicture - Pre-allocated XvMCSubpicture structure to be filled in.
// width - of subpicture
// height - of subpicture
// xvimage_id - The id describing the XvImage format.
//
// Returns: Status
***************************************************************************/
Status XvMCCreateSubpicture(Display *display, XvMCContext *context,
XvMCSubpicture *subpicture,
unsigned short width, unsigned short height,
int xvimage_id)
{
return BadValue;
}
/***************************************************************************
// Function: XvMCClearSubpicture
// Description: Clear the area of the given subpicture to "color".
// structure passed to it and returning Success.
// Arguments:
// display - Connection to the X server.
// subpicture - Subpicture to clear.
// x, y, width, height - rectangle in the subpicture to clear.
// color - The data to file the rectangle with.
//
// Returns: Status
***************************************************************************/
Status XvMCClearSubpicture(Display *display, XvMCSubpicture *subpicture,
short x, short y,
unsigned short width, unsigned short height,
unsigned int color)
{
return BadValue;
}
/***************************************************************************
// Function: XvMCCompositeSubpicture
// Description: Composite the XvImae on the subpicture. This composit uses
// non-premultiplied alpha. Destination alpha is utilized
// except for with indexed subpictures. Indexed subpictures
// use a simple "replace".
// Arguments:
// display - Connection to the X server.
// subpicture - Subpicture to clear.
// image - the XvImage to be used as the source of the composite.
// srcx, srcy, width, height - The rectangle from the image to be used.
// dstx, dsty - location in the subpicture to composite the source.
//
// Returns: Status
***************************************************************************/
Status XvMCCompositeSubpicture(Display *display, XvMCSubpicture *subpicture,
XvImage *image,
short srcx, short srcy,
unsigned short width, unsigned short height,
short dstx, short dsty)
{
return BadValue;
}
/***************************************************************************
// Function: XvMCDestroySubpicture
// Description: Destroys the specified subpicture.
// Arguments:
// display - Connection to the X server.
// subpicture - Subpicture to be destroyed.
//
// Returns: Status
***************************************************************************/
Status XvMCDestroySubpicture(Display *display, XvMCSubpicture *subpicture)
{
return BadValue;
}
/***************************************************************************
// Function: XvMCSetSubpicturePalette
// Description: Set the subpictures palette
// Arguments:
// display - Connection to the X server.
// subpicture - Subpiture to set palette for.
// palette - A pointer to an array holding the palette data. The array
// is num_palette_entries * entry_bytes in size.
// Returns: Status
***************************************************************************/
Status XvMCSetSubpicturePalette(Display *display, XvMCSubpicture *subpicture,
unsigned char *palette)
{
return BadValue;
}
/***************************************************************************
// Function: XvMCBlendSubpicture
// Description:
// The behavior of this function is different depending on whether
// or not the XVMC_BACKEND_SUBPICTURE flag is set in the XvMCSurfaceInfo.
// i915 only support frontend behavior.
//
// XVMC_BACKEND_SUBPICTURE not set ("frontend" behavior):
//
// XvMCBlendSubpicture is a no-op in this case.
//
// Arguments:
// display - Connection to the X server.
// subpicture - The subpicture to be blended into the video.
// target_surface - The surface to be displayed with the blended subpic.
// source_surface - Source surface prior to blending.
// subx, suby, subw, subh - The rectangle from the subpicture to use.
// surfx, surfy, surfw, surfh - The rectangle in the surface to blend
// blend the subpicture rectangle into. Scaling can ocure if
// XVMC_SUBPICTURE_INDEPENDENT_SCALING is set.
//
// Returns: Status
***************************************************************************/
Status XvMCBlendSubpicture(Display *display, XvMCSurface *target_surface,
XvMCSubpicture *subpicture,
short subx, short suby,
unsigned short subw, unsigned short subh,
short surfx, short surfy,
unsigned short surfw, unsigned short surfh)
{
return BadValue;
}
/***************************************************************************
// Function: XvMCBlendSubpicture2
// Description:
// The behavior of this function is different depending on whether
// or not the XVMC_BACKEND_SUBPICTURE flag is set in the XvMCSurfaceInfo.
// i915 only supports frontend blending.
//
// XVMC_BACKEND_SUBPICTURE not set ("frontend" behavior):
//
// XvMCBlendSubpicture2 blends the source_surface and subpicture and
// puts it in the target_surface. This does not effect the status of
// the source surface but will cause the target_surface to query
// XVMC_RENDERING until the blend is completed.
//
// Arguments:
// display - Connection to the X server.
// subpicture - The subpicture to be blended into the video.
// target_surface - The surface to be displayed with the blended subpic.
// source_surface - Source surface prior to blending.
// subx, suby, subw, subh - The rectangle from the subpicture to use.
// surfx, surfy, surfw, surfh - The rectangle in the surface to blend
// blend the subpicture rectangle into. Scaling can ocure if
// XVMC_SUBPICTURE_INDEPENDENT_SCALING is set.
//
// Returns: Status
***************************************************************************/
Status XvMCBlendSubpicture2(Display *display,
XvMCSurface *source_surface,
XvMCSurface *target_surface,
XvMCSubpicture *subpicture,
short subx, short suby,
unsigned short subw, unsigned short subh,
short surfx, short surfy,
unsigned short surfw, unsigned short surfh)
{
return BadValue;
}
/***************************************************************************
// Function: XvMCSyncSubpicture
// Description: This function blocks until all composite/clear requests on
// the subpicture have been complete.
// Arguments:
// display - Connection to the X server.
// subpicture - The subpicture to synchronize
//
// Returns: Status
***************************************************************************/
Status XvMCSyncSubpicture(Display *display, XvMCSubpicture *subpicture)
{
return BadValue;
#if 0
Status ret;
int stat = 0;
if (!display || !subpicture)
do {
ret = XvMCGetSubpictureStatus(display, subpicture, &stat);
} while(!ret && (stat & XVMC_RENDERING));
return ret;
#endif
}
/***************************************************************************
// Function: XvMCFlushSubpicture
// Description: This function commits pending composite/clear requests to
// ensure that they will be completed in a finite amount of
// time.
// Arguments:
// display - Connection to the X server.
// subpicture - The subpicture whos compsiting should be flushed
//
// Returns: Status
***************************************************************************/
Status XvMCFlushSubpicture(Display *display, XvMCSubpicture *subpicture)
{
return BadValue;
#if 0
i915XvMCSubpicture *pI915Subpicture;
if (!display || !subpicture)
return BadValue;
if (!(pI915Subpicture = subpicture->privData))
return (error_base + XvMCBadSubpicture);
return Success;
#endif
}
/***************************************************************************
// Function: XvMCGetSubpictureStatus
// Description: This function gets the current status of a subpicture
//
// Arguments:
// display - Connection to the X server.
// subpicture - The subpicture whos status is being queried
// stat - The status of the subpicture. It can be any of the following
// OR'd together:
// XVMC_RENDERING - Last composite or clear request not completed
// XVMC_DISPLAYING - Suppicture currently being displayed.
//
// Returns: Status
***************************************************************************/
Status XvMCGetSubpictureStatus(Display *display, XvMCSubpicture *subpicture,
int *stat)
{
return BadValue;
#if 0
i915XvMCSubpicture *pI915Subpicture;
i915XvMCContext *pI915XvMC;
if (!display || !subpicture || stat)
return BadValue;
*stat = 0;
if (!(pI915Subpicture = subpicture->privData))
return (error_base + XvMCBadSubpicture);
if (!(pI915XvMC = pI915Subpicture->privContext))
return (error_base + XvMCBadSubpicture);
// LOCK_HARDWARE(pI915XvMC);
PPTHREAD_MUTEX_LOCK(pI915XvMC);
/* FIXME: */
if (pI915Subpicture->last_render &&
(pI915Subpicture->last_render > pI915XvMC->sarea->last_dispatch)) {
*stat |= XVMC_RENDERING;
}
// UNLOCK_HARDWARE(pI915XvMC);
PPTHREAD_MUTEX_UNLOCK(pI915XvMC);
return Success;
#endif
}
/***************************************************************************
// Function: XvMCQueryAttributes
// Description: An array of XvAttributes of size "number" is returned by
// this function. If there are no attributes, NULL is returned and number
// is set to 0. The array may be freed with xfree().
//
// Arguments:
// display - Connection to the X server.
// context - The context whos attributes we are querying.
// number - The returned number of recognized atoms
//
// Returns:
// An array of XvAttributes.
***************************************************************************/
XvAttribute *XvMCQueryAttributes(Display *display, XvMCContext *context,
int *number)
{
/* now XvMC has no extra attribs than Xv */
*number = 0;
return NULL;
}
/***************************************************************************
// Function: XvMCSetAttribute
// Description: This function sets a context-specific attribute.
//
// Arguments:
// display - Connection to the X server.
// context - The context whos attributes we are querying.
// attribute - The X atom of the attribute to be changed.
// value - The new value for the attribute.
//
// Returns:
// Status
***************************************************************************/
Status XvMCSetAttribute(Display *display, XvMCContext *context,
Atom attribute, int value)
{
return Success;
}
/***************************************************************************
// Function: XvMCGetAttribute
// Description: This function queries a context-specific attribute and
// returns the value.
//
// Arguments:
// display - Connection to the X server.
// context - The context whos attributes we are querying.
// attribute - The X atom of the attribute to be queried
// value - The returned attribute value
//
// Returns:
// Status
// Notes:
***************************************************************************/
Status XvMCGetAttribute(Display *display, XvMCContext *context,
Atom attribute, int *value)
{
return Success;
}
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