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videolan
libva
Commits
16ab532f
Commit
16ab532f
authored
Sep 07, 2007
by
root
Browse files
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Plain Diff
Include sub-picture support (va 0.22)
parent
bb92cdf7
Changes
4
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Showing
4 changed files
with
687 additions
and
13 deletions
+687
-13
src/va.c
src/va.c
+277
-4
src/va.h
src/va.h
+301
-6
src/va_backend.h
src/va_backend.h
+107
-3
src/va_x11.h
src/va_x11.h
+2
-0
No files found.
src/va.c
View file @
16ab532f
...
...
@@ -36,7 +36,7 @@
#define DEFAULT_DRIVER_DIR "/usr/X11R6/lib/modules/dri"
#define DRIVER_EXTENSION "_drv_video.so"
#define DRIVER_INIT_FUNC "__vaDriverInit_0_2
0
"
#define DRIVER_INIT_FUNC "__vaDriverInit_0_2
2
"
#define CTX(dpy) ((VADriverContextP) dpy );
#define ASSERT_CONTEXT(dpy) assert( vaDbgContextIsValid(dpy) )
...
...
@@ -252,6 +252,8 @@ static VAStatus va_openDriver(VADriverContextP ctx, char *driver_name)
CHECK_MAXIMUM
(
vaStatus
,
ctx
,
profiles
);
CHECK_MAXIMUM
(
vaStatus
,
ctx
,
entrypoints
);
CHECK_MAXIMUM
(
vaStatus
,
ctx
,
attributes
);
CHECK_MAXIMUM
(
vaStatus
,
ctx
,
image_formats
);
CHECK_MAXIMUM
(
vaStatus
,
ctx
,
subpic_formats
);
CHECK_VTABLE
(
vaStatus
,
ctx
,
Terminate
);
CHECK_VTABLE
(
vaStatus
,
ctx
,
QueryConfigProfiles
);
CHECK_VTABLE
(
vaStatus
,
ctx
,
QueryConfigEntrypoints
);
...
...
@@ -274,6 +276,18 @@ static VAStatus va_openDriver(VADriverContextP ctx, char *driver_name)
CHECK_VTABLE
(
vaStatus
,
ctx
,
SyncSurface
);
CHECK_VTABLE
(
vaStatus
,
ctx
,
QuerySurfaceStatus
);
CHECK_VTABLE
(
vaStatus
,
ctx
,
PutSurface
);
CHECK_VTABLE
(
vaStatus
,
ctx
,
QueryImageFormats
);
CHECK_VTABLE
(
vaStatus
,
ctx
,
CreateImage
);
CHECK_VTABLE
(
vaStatus
,
ctx
,
DestroyImage
);
CHECK_VTABLE
(
vaStatus
,
ctx
,
GetImage
);
CHECK_VTABLE
(
vaStatus
,
ctx
,
PutImage
);
CHECK_VTABLE
(
vaStatus
,
ctx
,
QuerySubpictureFormats
);
CHECK_VTABLE
(
vaStatus
,
ctx
,
CreateSubpicture
);
CHECK_VTABLE
(
vaStatus
,
ctx
,
DestroySubpicture
);
CHECK_VTABLE
(
vaStatus
,
ctx
,
SetSubpicturePalette
);
CHECK_VTABLE
(
vaStatus
,
ctx
,
SetSubpictureChromakey
);
CHECK_VTABLE
(
vaStatus
,
ctx
,
SetSubpictureGlobalAlpha
);
CHECK_VTABLE
(
vaStatus
,
ctx
,
AssociateSubpicture
);
CHECK_VTABLE
(
vaStatus
,
ctx
,
DbgCopySurfaceToBuffer
);
}
if
(
VA_STATUS_SUCCESS
!=
vaStatus
)
...
...
@@ -334,7 +348,7 @@ const char *vaErrorStr(VAStatus error_status)
case
VA_STATUS_ERROR_UNKNOWN
:
return
"unknown libva error"
;
}
return
"unkn
wo
n libva error / description missing"
;
return
"unkn
ow
n libva error / description missing"
;
}
VAStatus
vaInitialize
(
...
...
@@ -431,6 +445,7 @@ int vaMaxNumEntrypoints (
return
ctx
->
max_entrypoints
;
}
/* Get maximum number of attributs supported by the implementation */
int
vaMaxNumConfigAttributes
(
VADisplay
dpy
...
...
@@ -442,7 +457,6 @@ int vaMaxNumConfigAttributes (
return
ctx
->
max_attributes
;
}
VAStatus
vaQueryConfigEntrypoints
(
VADisplay
dpy
,
VAProfile
profile
,
...
...
@@ -734,6 +748,8 @@ VAStatus vaPutSurface (
short
desty
,
unsigned
short
destw
,
unsigned
short
desth
,
VARectangle
*
cliprects
,
/* client supplied clip list */
unsigned
int
number_cliprects
,
/* number of clip rects in the clip list */
int
flags
/* de-interlacing flags */
)
{
...
...
@@ -742,9 +758,266 @@ VAStatus vaPutSurface (
TRACE
(
vaPutSurface
);
return
ctx
->
vtable
.
vaPutSurface
(
ctx
,
surface
,
draw
,
srcx
,
srcy
,
srcw
,
srch
,
destx
,
desty
,
destw
,
desth
,
flags
);
destx
,
desty
,
destw
,
desth
,
cliprects
,
number_cliprects
,
flags
);
}
/* Get maximum number of image formats supported by the implementation */
int
vaMaxNumImageFormats
(
VADisplay
dpy
)
{
VADriverContextP
ctx
=
CTX
(
dpy
);
ASSERT_CONTEXT
(
ctx
);
return
ctx
->
max_image_formats
;
}
VAStatus
vaQueryImageFormats
(
VADisplay
dpy
,
VAImageFormat
*
format_list
,
/* out */
int
*
num_formats
/* out */
)
{
VADriverContextP
ctx
=
CTX
(
dpy
);
ASSERT_CONTEXT
(
ctx
);
TRACE
(
vaQueryImageFormats
);
return
ctx
->
vtable
.
vaQueryImageFormats
(
ctx
,
format_list
,
num_formats
);
}
/*
* The width and height fields returned in the VAImage structure may get
* enlarged for some YUV formats. The size of the data buffer that needs
* to be allocated will be given in the "data_size" field in VAImage.
* Image data is not allocated by this function. The client should
* allocate the memory and fill in the VAImage structure's data field
* after looking at "data_size" returned from the library.
*/
VAStatus
vaCreateImage
(
VADisplay
dpy
,
VAImageFormat
*
format
,
int
width
,
int
height
,
VAImage
*
image
/* out */
)
{
VADriverContextP
ctx
=
CTX
(
dpy
);
ASSERT_CONTEXT
(
ctx
);
TRACE
(
vaCreateImage
);
return
ctx
->
vtable
.
vaCreateImage
(
ctx
,
format
,
width
,
height
,
image
);
}
/*
* Should call DestroyImage before destroying the surface it is bound to
*/
VAStatus
vaDestroyImage
(
VADisplay
dpy
,
VAImage
*
image
)
{
VADriverContextP
ctx
=
CTX
(
dpy
);
ASSERT_CONTEXT
(
ctx
);
TRACE
(
vaDestroyImage
);
return
ctx
->
vtable
.
vaDestroyImage
(
ctx
,
image
);
}
/*
* Retrieve surface data into a VAImage
* Image must be in a format supported by the implementation
*/
VAStatus
vaGetImage
(
VADisplay
dpy
,
VASurface
*
surface
,
int
x
,
/* coordinates of the upper left source pixel */
int
y
,
unsigned
int
width
,
/* width and height of the region */
unsigned
int
height
,
VAImage
*
image
)
{
VADriverContextP
ctx
=
CTX
(
dpy
);
ASSERT_CONTEXT
(
ctx
);
TRACE
(
vaGetImage
);
return
ctx
->
vtable
.
vaGetImage
(
ctx
,
surface
,
x
,
y
,
width
,
height
,
image
);
}
/*
* Copy data from a VAImage to a surface
* Image must be in a format supported by the implementation
*/
VAStatus
vaPutImage
(
VADisplay
dpy
,
VASurface
*
surface
,
VAImage
*
image
,
int
src_x
,
int
src_y
,
unsigned
int
width
,
unsigned
int
height
,
int
dest_x
,
int
dest_y
)
{
VADriverContextP
ctx
=
CTX
(
dpy
);
ASSERT_CONTEXT
(
ctx
);
TRACE
(
vaPutImage
);
return
ctx
->
vtable
.
vaPutImage
(
ctx
,
surface
,
image
,
src_x
,
src_y
,
width
,
height
,
dest_x
,
dest_y
);
}
/* Get maximum number of subpicture formats supported by the implementation */
int
vaMaxNumSubpictureFormats
(
VADisplay
dpy
)
{
VADriverContextP
ctx
=
CTX
(
dpy
);
ASSERT_CONTEXT
(
ctx
);
return
ctx
->
max_subpic_formats
;
}
/*
* Query supported subpicture formats
* The caller must provide a "format_list" array that can hold at
* least vaMaxNumSubpictureFormats() entries. The flags arrary holds the flag
* for each format to indicate additional capabilities for that format. The actual
* number of formats returned in "format_list" is returned in "num_formats".
*/
VAStatus
vaQuerySubpictureFormats
(
VADisplay
dpy
,
VAImageFormat
*
format_list
,
/* out */
unsigned
int
*
flags
,
/* out */
unsigned
int
*
num_formats
/* out */
)
{
VADriverContextP
ctx
=
CTX
(
dpy
);
ASSERT_CONTEXT
(
ctx
);
TRACE
(
vaQuerySubpictureFormats
);
return
ctx
->
vtable
.
vaQuerySubpictureFormats
(
ctx
,
format_list
,
flags
,
num_formats
);
}
/*
* Subpictures are created with an image associated.
*/
VAStatus
vaCreateSubpicture
(
VADisplay
dpy
,
VAImage
*
image
,
VASubpicture
*
subpicture
/* out */
)
{
VADriverContextP
ctx
=
CTX
(
dpy
);
ASSERT_CONTEXT
(
ctx
);
TRACE
(
vaCreateSubpicture
);
return
ctx
->
vtable
.
vaCreateSubpicture
(
ctx
,
image
,
subpicture
);
}
/*
* Destroy the subpicture before destroying the image it is assocated to
*/
VAStatus
vaDestroySubpicture
(
VADisplay
dpy
,
VASubpicture
*
subpicture
)
{
VADriverContextP
ctx
=
CTX
(
dpy
);
ASSERT_CONTEXT
(
ctx
);
TRACE
(
vaDestroySubpicture
);
return
ctx
->
vtable
.
vaDestroySubpicture
(
ctx
,
subpicture
);
}
VAStatus
vaSetSubpicturePalette
(
VADisplay
dpy
,
VASubpicture
*
subpicture
,
/*
* pointer to an array holding the palette data. The size of the array is
* num_palette_entries * entry_bytes in size. The order of the components
* in the palette is described by the component_order in VASubpicture struct
*/
unsigned
char
*
palette
)
{
VADriverContextP
ctx
=
CTX
(
dpy
);
ASSERT_CONTEXT
(
ctx
);
TRACE
(
vaSetSubpicturePalette
);
return
ctx
->
vtable
.
vaSetSubpicturePalette
(
ctx
,
subpicture
,
palette
);
}
/*
* If chromakey is enabled, then the area where the source value falls within
* the chromakey [min, max] range is transparent
*/
VAStatus
vaSetSubpictureChromakey
(
VADisplay
dpy
,
VASubpicture
*
subpicture
,
unsigned
int
chromakey_min
,
unsigned
int
chromakey_max
)
{
VADriverContextP
ctx
=
CTX
(
dpy
);
ASSERT_CONTEXT
(
ctx
);
TRACE
(
vaSetSubpictureChromakey
);
return
ctx
->
vtable
.
vaSetSubpictureChromakey
(
ctx
,
subpicture
,
chromakey_min
,
chromakey_max
);
}
/*
* Global alpha value is between 0 and 1. A value of 1 means fully opaque and
* a value of 0 means fully transparent. If per-pixel alpha is also specified then
* the overall alpha is per-pixel alpha multiplied by the global alpha
*/
VAStatus
vaSetSubpictureGlobalAlpha
(
VADisplay
dpy
,
VASubpicture
*
subpicture
,
float
global_alpha
)
{
VADriverContextP
ctx
=
CTX
(
dpy
);
ASSERT_CONTEXT
(
ctx
);
TRACE
(
vaSetSubpictureGlobalAlpha
);
return
ctx
->
vtable
.
vaSetSubpictureGlobalAlpha
(
ctx
,
subpicture
,
global_alpha
);
}
/*
vaAssociateSubpicture associates the subpicture with the target_surface.
It defines the region mapping between the subpicture and the target
surface through source and destination rectangles (with the same width and height).
Both will be displayed at the next call to vaPutSurface. Additional
associations before the call to vaPutSurface simply overrides the association.
*/
VAStatus
vaAssociateSubpicture
(
VADisplay
dpy
,
VASurface
*
target_surface
,
VASubpicture
*
subpicture
,
short
src_x
,
/* upper left offset in subpicture */
short
src_y
,
short
dest_x
,
/* upper left offset in surface */
short
dest_y
,
unsigned
short
width
,
unsigned
short
height
,
/*
* whether to enable chroma-keying or global-alpha
* see VA_SUBPICTURE_XXX values
*/
unsigned
int
flags
)
{
VADriverContextP
ctx
=
CTX
(
dpy
);
ASSERT_CONTEXT
(
ctx
);
TRACE
(
vaAssociateSubpicture
);
return
ctx
->
vtable
.
vaAssociateSubpicture
(
ctx
,
target_surface
,
subpicture
,
src_x
,
src_y
,
dest_x
,
dest_y
,
width
,
height
,
flags
);
}
VAStatus
vaDbgCopySurfaceToBuffer
(
VADisplay
dpy
,
VASurface
*
surface
,
void
**
buffer
,
/* out */
...
...
src/va.h
View file @
16ab532f
...
...
@@ -24,7 +24,7 @@
/*
* Video Decode Acceleration API Specification
*
* Rev. 0.2
0
* Rev. 0.2
2
* <jonathan.bian@intel.com>
*
* Revision History:
...
...
@@ -40,8 +40,11 @@
* and MPEG-2 motion compensation.
* rev 0.19 (08/06/2007 Jonathan Bian) - Removed extra type for bitplane data.
* rev 0.20 (08/08/2007 Jonathan Bian) - Added missing fields to VC-1 PictureParameter structure.
* rev 0.21 (08/20/2007 Jonathan Bian) - Added image and subpicture support.
* rev 0.22 (08/27/2007 Jonathan Bian) - Added support for chroma-keying and global alpha.
*
* Acknowledgements:
* Some concepts borrowed from XvMC and XvImage.
* Thanks to Waldo Bastian for many valuable feedbacks.
*/
#ifndef _VA_H_
...
...
@@ -54,7 +57,9 @@ extern "C" {
/*
Overview
This is a decode only interface currently. The basic steps are:
This is currently a decode only interface (with some rendering support).
The basic operation steps are:
- Negotiate a mutually acceptable configuration with the server to lock
down profile, entrypoints, and other attributes that will not change on
...
...
@@ -139,7 +144,9 @@ typedef enum
VAProfileVC1Advanced
=
10
,
}
VAProfile
;
/* Currently defined entrypoints */
/*
* Currently defined entrypoints
*/
typedef
enum
{
VAEntrypointVLD
=
1
,
...
...
@@ -781,7 +788,6 @@ typedef struct _VAPictureH264
#define VA_PICTURE_H264_BOTTOM_FIELD 0x00000004
#define VA_PICTURE_H264_SHORT_TERM_REFERENCE 0x00000008
#define VA_PICTURE_H264_LONG_TERM_REFERENCE 0x00000010
#define VA_PICTURE_H264_USED_AS_REFERENCE 0x00000020
/* H.264 Picture Parameter Buffer */
/*
...
...
@@ -1007,8 +1013,11 @@ VAStatus vaSyncSurface (
typedef
enum
{
VASurfaceRendering
=
0
,
VASurfaceReady
=
1
,
VASurfaceRendering
=
0
,
/* Rendering in progress */
VASurfaceDisplaying
=
1
,
/* Displaying in progress (not safe to render into it) */
/* this status is useful if surface is used as the source */
/* of an overlay */
VASurfaceReady
=
2
/* not being rendered or displayed */
}
VASurfaceStatus
;
/*
...
...
@@ -1032,6 +1041,274 @@ VAStatus vaDbgCopySurfaceToBuffer(VADisplay dpy,
unsigned
int
*
stride
/* out */
);
/*
* Images and Subpictures
* VAImage is used to either get the surface data to client memory, or
* to copy image data in client memory to a surface.
* Both images, subpictures and surfaces follow the same 2D coordinate system where origin
* is at the upper left corner with positive X to the right and positive Y down
*/
#define MAKEFOURCC(ch0, ch1, ch2, ch3) \
((unsigned long)(unsigned char) (ch0) | ((unsigned long)(unsigned char) (ch1) << 8) | \
((unsigned long)(unsigned char) (ch2) << 16) | ((unsigned long)(unsigned char) (ch3) << 24 ))
/* a few common FourCCs */
#define VA_FOURCC_NV12 0x3231564E
#define VA_FOURCC_AI44 0x34344149
#define VA_FOURCC_RGBA 0x41424752
typedef
struct
_VAImageFormat
{
unsigned
int
fourcc
;
unsigned
int
byte_order
;
/* VA_LSB_FIRST, VA_MSB_FIRST */
unsigned
int
bits_per_pixel
;
/* for RGB formats */
unsigned
int
depth
;
/* significant bits per pixel */
unsigned
int
red_mask
;
unsigned
int
green_mask
;
unsigned
int
blue_mask
;
unsigned
int
alpha_mask
;
}
VAImageFormat
;
typedef
int
VAImageID
;
typedef
struct
_VAImage
{
VAImageID
image_id
;
/* uniquely identify this image */
VASurfaceID
surface_id
;
/* which surface will this image be associated with */
VAImageFormat
format
;
unsigned
char
*
data
;
/* image data pointer */
/* The following fields are set by the library */
unsigned
short
width
;
unsigned
short
height
;
unsigned
int
data_size
;
unsigned
int
num_planes
;
/*
* An array of size num_planes indicating the scanline pitch in bytes.
* Each plane may have a different pitch.
*/
unsigned
int
*
pitches
;
/*
* An array of size num_planes indicating the byte offset from
* "data" t the start of each plane.
*/
unsigned
int
*
offsets
;
}
VAImage
;
/* Get maximum number of image formats supported by the implementation */
int
vaMaxNumImageFormats
(
VADisplay
dpy
);
/*
* Query supported image formats
* The caller must provide a "format_list" array that can hold at
* least vaMaxNumImageFormats() entries. The actual number of formats
* returned in "format_list" is returned in "num_formats".
*/
VAStatus
vaQueryImageFormats
(
VADisplay
dpy
,
VAImageFormat
*
format_list
,
/* out */
int
*
num_formats
/* out */
);
/*
* The width and height fields returned in the VAImage structure may get
* enlarged for some YUV formats. The size of the data buffer that needs
* to be allocated will be given in the "data_size" field in VAImage.
* Image data is not allocated by this function. The client should
* allocate the memory and fill in the VAImage structure's data field
* after looking at "data_size" returned from the library.
*/
VAStatus
vaCreateImage
(
VADisplay
dpy
,
VAImageFormat
*
format
,
int
width
,
int
height
,
VAImage
*
image
/* out */
);
/*
* Should call DestroyImage before destroying the surface it is bound to
*/
VAStatus
vaDestroyImage
(
VADisplay
dpy
,
VAImage
*
image
);
/*
* Retrive surface data into a VAImage
* Image must be in a format supported by the implementation
*/
VAStatus
vaGetImage
(
VADisplay
dpy
,
VASurface
*
surface
,
int
x
,
/* coordinates of the upper left source pixel */
int
y
,
unsigned
int
width
,
/* width and height of the region */
unsigned
int
height
,
VAImage
*
image
);
/*
* Copy data from a VAImage to a surface
* Image must be in a format supported by the implementation
*/
VAStatus
vaPutImage
(
VADisplay
dpy
,
VASurface
*
surface
,
VAImage
*
image
,
int
src_x
,
int
src_y
,
unsigned
int
width
,
unsigned
int
height
,
int
dest_x
,
int
dest_y
);
/*
* Subpictures
* Subpicture is a special type of image that can be blended
* with a surface during vaPutSurface(). Subpicture can be used to render
* DVD sub-titles or closed captioning text etc.
*/
typedef
int
VASubpictureID
;
typedef
struct
_VASubpicture
{
VASubpictureID
subpicture_id
;
/* uniquely identify this subpicture */
VASurfaceID
surface_id
;
/* which surface does this subpicture associate with */
VAImageID
image_id
;
/* The following fields are set by the library */
int
num_palette_entries
;
/* paletted formats only. set to zero for image without palettes */
/*
* Each component is one byte and entry_bytes indicates the number of components in
* each entry (eg. 3 for YUV palette entries). set to zero for image without palettes
*/
int
entry_bytes
;
/*
* An array of ascii characters describing teh order of the components within the bytes.
* Only entry_bytes characters of the string are used.
*/
char
component_order
[
4
];
/* chromakey range */
unsigned
int
chromakey_min
;
unsigned
int
chromakey_max
;
/* global alpha */
unsigned
int
global_alpha
;
/* flags */
unsigned
int
flags
;
/* see below */
}
VASubpicture
;
/* flags for subpictures */
#define VA_SUBPICTURE_CHROMA_KEYING 0x0001
#define VA_SUBPICTURE_GLOBAL_ALPHA 0x0002
/* Get maximum number of subpicture formats supported by the implementation */
int
vaMaxNumSubpictureFormats
(
VADisplay
dpy
);
/*
* Query supported subpicture formats
* The caller must provide a "format_list" array that can hold at
* least vaMaxNumSubpictureFormats() entries. The flags arrary holds the flag
* for each format to indicate additional capabilities for that format. The actual
* number of formats returned in "format_list" is returned in "num_formats".
*/
VAStatus
vaQuerySubpictureFormats
(
VADisplay
dpy
,
VAImageFormat
*
format_list
,
/* out */
unsigned
int
*
flags
,
/* out */
unsigned
int
*
num_formats
/* out */
);
/*
* Subpictures are created with an image associated.
*/
VAStatus
vaCreateSubpicture
(
VADisplay
dpy
,
VAImage
*
image
,
VASubpicture
*
subpicture
/* out */
);
/*
* Destroy the subpicture before destroying the image it is assocated to
*/
VAStatus
vaDestroySubpicture
(
VADisplay
dpy
,
VASubpicture
*
subpicture
);
VAStatus
vaSetSubpicturePalette
(
VADisplay
dpy
,
VASubpicture
*
subpicture
,
/*
* pointer to an array holding the palette data. The size of the array is
* num_palette_entries * entry_bytes in size. The order of the components
* in the palette is described by the component_order in VASubpicture struct
*/
unsigned
char
*
palette
);
/*
* If chromakey is enabled, then the area where the source value falls within
* the chromakey [min, max] range is transparent
*/
VAStatus
vaSetSubpictureChromakey
(
VADisplay
dpy
,
VASubpicture
*
subpicture
,
unsigned
int
chromakey_min
,
unsigned
int
chromakey_max
);
/*
* Global alpha value is between 0 and 1. A value of 1 means fully opaque and
* a value of 0 means fully transparent. If per-pixel alpha is also specified then
* the overall alpha is per-pixel alpha multiplied by the global alpha
*/
VAStatus
vaSetSubpictureGlobalAlpha
(
VADisplay
dpy
,
VASubpicture
*
subpicture
,
float
global_alpha
);
/*
vaAssociateSubpicture associates the subpicture with the target_surface.
It defines the region mapping between the subpicture and the target
surface through source and destination rectangles (with the same width and height).
Both will be displayed at the next call to vaPutSurface. Additional
associations before the call to vaPutSurface simply overrides the association.
*/
VAStatus
vaAssociateSubpicture
(
VADisplay
dpy
,
VASurface
*
target_surface
,
VASubpicture
*
subpicture
,
short
src_x
,
/* upper left offset in subpicture */
short
src_y
,
short
dest_x
,
/* upper left offset in surface */
short
dest_y
,
unsigned
short
width
,
unsigned
short
height
,
/*
* whether to enable chroma-keying or global-alpha
* see VA_SUBPICTURE_XXX values
*/
unsigned
int
flags
);
typedef
struct
_VARectangle
{
short
x
;
short
y
;
unsigned
short
width
;
unsigned
short
height
;
}
VARectangle
;
#ifdef __cplusplus
}
#endif
...
...
@@ -1165,4 +1442,22 @@ Mostly to demonstrate program flow with no error handling ...
/* all slices have been sent, mark the end for this frame */
vaEndPicture(dpy, context);
/* The following code demonstrates rendering a sub-title with the target surface */
/* Find out supported Subpicture formats */
VAImageFormat sub_formats[4];
int num_formats;
vaQuerySubpictureFormats(dpy, sub_formats, &num_formats);
/* Assume that we find AI44 as a subpicture format in sub_formats[0] */
VAImage sub_image;
VASubpicture subpicture;
unsigned char sub_data[128][16];
/* fill sub_data with subtitle in AI44 */
vaCreateImage(dpy, surfaces, sub_formats, 128, 16, sub_data, &sub_image);
vaCreateSubpicture(dpy, &sub_image, &subpicture);
unsigned char palette[3][16];
/* fill the palette data */
vaSetSubpicturePalette(dpy, &subpicture, palette);
vaAssociateSubpicture(dpy, surfaces, &subpicture, 0, 0, 296, 400, 128, 16);
vaPutSurface(dpy, surfaces, win, 0, 0, 720, 480, 100, 100, 640, 480, NULL, 0, 0);
#endif
src/va_backend.h
View file @
16ab532f
...
...
@@ -46,6 +46,8 @@ struct VADriverContext
int
max_profiles
;
int
max_entrypoints
;
int
max_attributes
;
int
max_image_formats
;
int
max_subpic_formats
;
void
*
handle
;
/* dlopen handle */
void
*
pDriverData
;
struct
...
...
@@ -201,9 +203,111 @@ struct VADriverContext
short
desty
,
unsigned
short
destw
,
unsigned
short
desth
,
VARectangle
*
cliprects
,
/* client supplied clip list */
unsigned
int
number_cliprects
,
/* number of clip rects in the clip list */
int
flags
/* de-interlacing flags */
);
VAStatus
(
*
vaQueryImageFormats
)
(
VADriverContextP
ctx
,
VAImageFormat
*
format_list
,
/* out */
int
*
num_formats
/* out */
);
VAStatus
(
*
vaCreateImage
)
(
VADriverContextP
ctx
,
VAImageFormat
*
format
,
int
width
,
int
height
,
VAImage
*
image
/* out */
);
VAStatus
(
*
vaDestroyImage
)
(
VADriverContextP
ctx
,
VAImage
*
image
);
VAStatus
(
*
vaGetImage
)
(
VADriverContextP
ctx
,
VASurface
*
surface
,
int
x
,
/* coordinates of the upper left source pixel */
int
y
,
unsigned
int
width
,
/* width and height of the region */
unsigned
int
height
,
VAImage
*
image
);
VAStatus
(
*
vaPutImage
)
(
VADriverContextP
ctx
,
VASurface
*
surface
,
VAImage
*
image
,
int
src_x
,
int
src_y
,
unsigned
int
width
,
unsigned
int
height
,
int
dest_x
,
int
dest_y
);
VAStatus
(
*
vaQuerySubpictureFormats
)
(
VADriverContextP
ctx
,
VAImageFormat
*
format_list
,
/* out */
unsigned
int
*
flags
,
/* out */
unsigned
int
*
num_formats
/* out */
);
VAStatus
(
*
vaCreateSubpicture
)
(
VADriverContextP
ctx
,
VAImage
*
image
,
VASubpicture
*
subpicture
/* out */
);
VAStatus
(
*
vaDestroySubpicture
)
(
VADriverContextP
ctx
,
VASubpicture
*
subpicture
);
VAStatus
(
*
vaSetSubpicturePalette
)
(
VADriverContextP
ctx
,
VASubpicture
*
subpicture
,
/*
* pointer to an array holding the palette data. The size of the array is
* num_palette_entries * entry_bytes in size. The order of the components
* in the palette is described by the component_order in VASubpicture struct
*/
unsigned
char
*
palette
);
VAStatus
(
*
vaSetSubpictureChromakey
)
(
VADriverContextP
ctx
,
VASubpicture
*
subpicture
,
unsigned
int
chromakey_min
,
unsigned
int
chromakey_max
);
VAStatus
(
*
vaSetSubpictureGlobalAlpha
)
(
VADriverContextP
ctx
,
VASubpicture
*
subpicture
,
float
global_alpha
);
VAStatus
(
*
vaAssociateSubpicture
)
(
VADriverContextP
ctx
,
VASurface
*
target_surface
,
VASubpicture
*
subpicture
,
short
src_x
,
/* upper left offset in subpicture */
short
src_y
,
short
dest_x
,
/* upper left offset in surface */
short
dest_y
,
unsigned
short
width
,
unsigned
short
height
,
/*
* whether to enable chroma-keying or global-alpha
* see VA_SUBPICTURE_XXX values
*/
unsigned
int
flags
);
VAStatus
(
*
vaDbgCopySurfaceToBuffer
)
(
VADriverContextP
ctx
,
VASurface
*
surface
,
...
...
src/va_x11.h
View file @
16ab532f
...
...
@@ -44,6 +44,8 @@ VAStatus vaPutSurface (
short
desty
,
unsigned
short
destw
,
unsigned
short
desth
,
VARectangle
*
cliprects
,
/* client supplied clip list */
unsigned
int
number_cliprects
,
/* number of clip rects in the clip list */
int
flags
/* de-interlacing flags */
);
...
...
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