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![Jakob Bornecrantz](/assets/img/avatar_default.png)
Signed-off-by: Jakob Bornecrantz <jakob@vmware.com> Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
201 lines
4.9 KiB
C
201 lines
4.9 KiB
C
/**********************************************************
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* Copyright 2007-2009 VMware, Inc. All rights reserved.
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*
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* Permission is hereby granted, free of charge, to any person
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* obtaining a copy of this software and associated documentation
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* files (the "Software"), to deal in the Software without
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* restriction, including without limitation the rights to use, copy,
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* modify, merge, publish, distribute, sublicense, and/or sell copies
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* of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*
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**********************************************************/
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/*
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* svga_overlay.h --
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*
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* Definitions for video-overlay support.
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*/
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#ifndef _SVGA_OVERLAY_H_
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#define _SVGA_OVERLAY_H_
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#include "svga_reg.h"
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/*
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* Video formats we support
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*/
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#define VMWARE_FOURCC_YV12 0x32315659 /* 'Y' 'V' '1' '2' */
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#define VMWARE_FOURCC_YUY2 0x32595559 /* 'Y' 'U' 'Y' '2' */
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#define VMWARE_FOURCC_UYVY 0x59565955 /* 'U' 'Y' 'V' 'Y' */
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typedef enum {
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SVGA_OVERLAY_FORMAT_INVALID = 0,
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SVGA_OVERLAY_FORMAT_YV12 = VMWARE_FOURCC_YV12,
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SVGA_OVERLAY_FORMAT_YUY2 = VMWARE_FOURCC_YUY2,
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SVGA_OVERLAY_FORMAT_UYVY = VMWARE_FOURCC_UYVY,
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} SVGAOverlayFormat;
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#define SVGA_VIDEO_COLORKEY_MASK 0x00ffffff
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#define SVGA_ESCAPE_VMWARE_VIDEO 0x00020000
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#define SVGA_ESCAPE_VMWARE_VIDEO_SET_REGS 0x00020001
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/* FIFO escape layout:
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* Type, Stream Id, (Register Id, Value) pairs */
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#define SVGA_ESCAPE_VMWARE_VIDEO_FLUSH 0x00020002
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/* FIFO escape layout:
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* Type, Stream Id */
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typedef
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struct SVGAEscapeVideoSetRegs {
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struct {
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uint32 cmdType;
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uint32 streamId;
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} header;
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/* May include zero or more items. */
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struct {
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uint32 registerId;
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uint32 value;
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} items[1];
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} SVGAEscapeVideoSetRegs;
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typedef
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struct SVGAEscapeVideoFlush {
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uint32 cmdType;
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uint32 streamId;
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} SVGAEscapeVideoFlush;
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/*
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* Struct definitions for the video overlay commands built on
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* SVGAFifoCmdEscape.
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*/
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typedef
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struct {
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uint32 command;
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uint32 overlay;
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} SVGAFifoEscapeCmdVideoBase;
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typedef
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struct {
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SVGAFifoEscapeCmdVideoBase videoCmd;
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} SVGAFifoEscapeCmdVideoFlush;
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typedef
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struct {
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SVGAFifoEscapeCmdVideoBase videoCmd;
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struct {
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uint32 regId;
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uint32 value;
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} items[1];
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} SVGAFifoEscapeCmdVideoSetRegs;
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typedef
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struct {
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SVGAFifoEscapeCmdVideoBase videoCmd;
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struct {
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uint32 regId;
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uint32 value;
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} items[SVGA_VIDEO_NUM_REGS];
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} SVGAFifoEscapeCmdVideoSetAllRegs;
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/*
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*----------------------------------------------------------------------
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*
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* VMwareVideoGetAttributes --
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*
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* Computes the size, pitches and offsets for YUV frames.
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*
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* Results:
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* TRUE on success; otherwise FALSE on failure.
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*
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* Side effects:
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* Pitches and offsets for the given YUV frame are put in 'pitches'
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* and 'offsets' respectively. They are both optional though.
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*
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*----------------------------------------------------------------------
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*/
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static inline bool
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VMwareVideoGetAttributes(const SVGAOverlayFormat format, /* IN */
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uint32 *width, /* IN / OUT */
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uint32 *height, /* IN / OUT */
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uint32 *size, /* OUT */
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uint32 *pitches, /* OUT (optional) */
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uint32 *offsets) /* OUT (optional) */
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{
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int tmp;
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*width = (*width + 1) & ~1;
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if (offsets) {
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offsets[0] = 0;
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}
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switch (format) {
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case VMWARE_FOURCC_YV12:
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*height = (*height + 1) & ~1;
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*size = (*width + 3) & ~3;
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if (pitches) {
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pitches[0] = *size;
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}
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*size *= *height;
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if (offsets) {
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offsets[1] = *size;
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}
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tmp = ((*width >> 1) + 3) & ~3;
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if (pitches) {
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pitches[1] = pitches[2] = tmp;
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}
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tmp *= (*height >> 1);
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*size += tmp;
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if (offsets) {
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offsets[2] = *size;
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}
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*size += tmp;
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break;
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case VMWARE_FOURCC_YUY2:
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case VMWARE_FOURCC_UYVY:
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*size = *width * 2;
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if (pitches) {
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pitches[0] = *size;
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}
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*size *= *height;
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break;
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default:
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return false;
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}
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return true;
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}
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#endif /* _SVGA_OVERLAY_H_ */
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