249 lines
7.6 KiB
C
249 lines
7.6 KiB
C
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//==========================================================================;
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//
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// THIS CODE AND INFORMATION IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY
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// KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
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// IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A PARTICULAR
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// PURPOSE.
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//
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// Copyright (c) 1992 - 1997 Microsoft Corporation. All Rights Reserved.
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//
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//==========================================================================;
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#include "strmini.h"
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#include "ksmedia.h"
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#include "capmain.h"
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#include "capdebug.h"
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#include "capxfer.h"
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//
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// EIA-189-A Standard color bar definitions
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//
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// 75% Amplitude, 100% Saturation
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const static UCHAR NTSCColorBars75Amp100SatRGB24 [3][8] =
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{
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// Whi Yel Cya Grn Mag Red Blu Blk
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191, 0,191, 0,191, 0,191, 0, // Blue
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191,191,191,191, 0, 0, 0, 0, // Green
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191,191, 0, 0,191,191, 0, 0, // Red
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};
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// 100% Amplitude, 100% Saturation
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const static UCHAR NTSCColorBars100Amp100SatRGB24 [3][8] =
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{
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// Whi Yel Cya Grn Mag Red Blu Blk
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255, 0,255, 0,255, 0,255, 0, // Blue
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255,255,255,255, 0, 0, 0, 0, // Green
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255,255, 0, 0,255,255, 0, 0, // Red
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};
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const static UCHAR NTSCColorBars100Amp100SatYUV [4][8] =
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{
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// Whi Yel Cya Grn Mag Red Blu Blk
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128, 16,166, 54,202, 90,240,128, // U
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235,211,170,145,106, 81, 41, 16, // Y
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128,146, 16, 34,222,240,109,128, // V
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235,211,170,145,106, 81, 41, 16 // Y
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};
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/*
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** ImageSynth()
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**
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** Synthesizes NTSC color bars, white, black, and grayscale images
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**
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** Arguments:
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**
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** pSrb - The stream request block for the Video stream
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** ImageXferCommands - Index specifying the image to generate
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**
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** Returns:
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**
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** Nothing
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**
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** Side Effects: none
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*/
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void ImageSynth (
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IN OUT PHW_STREAM_REQUEST_BLOCK pSrb,
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IN ImageXferCommands Command,
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IN BOOL FlipHorizontal
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)
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{
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PSTREAMEX pStrmEx = (PSTREAMEX)pSrb->StreamObject->HwStreamExtension;
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PHW_DEVICE_EXTENSION pHwDevExt = ((PHW_DEVICE_EXTENSION)pSrb->HwDeviceExtension);
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int StreamNumber = pSrb->StreamObject->StreamNumber;
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KS_VIDEOINFOHEADER *pVideoInfoHdr = pStrmEx->pVideoInfoHeader;
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UINT biWidth = pVideoInfoHdr->bmiHeader.biWidth;
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UINT biHeight = pVideoInfoHdr->bmiHeader.biHeight;
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UINT biSizeImage = pVideoInfoHdr->bmiHeader.biSizeImage;
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UINT biWidthBytes = KS_DIBWIDTHBYTES (pVideoInfoHdr->bmiHeader);
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UINT biBitCount = pVideoInfoHdr->bmiHeader.biBitCount;
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UINT LinesToCopy = abs (biHeight);
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DWORD biCompression = pVideoInfoHdr->bmiHeader.biCompression;
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UINT Line;
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PUCHAR pLineBuffer;
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PKSSTREAM_HEADER pDataPacket = pSrb->CommandData.DataBufferArray;
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PUCHAR pImage = pDataPacket->Data;
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DEBUG_ASSERT (pSrb->NumberOfBuffers == 1);
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#if 0
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// Note: set "ulInDebug = 1" in a debugger to view this output with .ntkern
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DbgLogTrace(("\'TestCap: ImageSynthBegin\n"));
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DbgLogTrace(("\'TestCap: biSizeImage=%d, DataPacketLength=%d\n",
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biSizeImage, pDataPacket->DataPacketLength));
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DbgLogTrace(("\'TestCap: biWidth=%d biHeight=%d WidthBytes=%d bpp=%d\n",
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biWidth, biHeight, biWidthBytes, biBitCount));
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DbgLogTrace(("\'TestCap: pImage=%x\n", pImage));
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#endif
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//
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// Synthesize a single line of image data, which will then be replicated
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//
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pLineBuffer = &pStrmEx->LineBuffer[0];
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if ((biBitCount == 24) && (biCompression == KS_BI_RGB)) {
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switch (Command) {
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case IMAGE_XFER_NTSC_EIA_100AMP_100SAT:
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// 100% saturation
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{
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UINT x, col;
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PUCHAR pT = pLineBuffer;
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for (x = 0; x < biWidth; x++) {
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col = (x * 8) / biWidth;
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col = FlipHorizontal ? (7 - col) : col;
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*pT++ = NTSCColorBars100Amp100SatRGB24[0][col]; // Red
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*pT++ = NTSCColorBars100Amp100SatRGB24[1][col]; // Green
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*pT++ = NTSCColorBars100Amp100SatRGB24[2][col]; // Blue
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}
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}
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break;
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case IMAGE_XFER_NTSC_EIA_75AMP_100SAT:
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// 75% Saturation
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{
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UINT x, col;
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PUCHAR pT = pLineBuffer;
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for (x = 0; x < biWidth; x++) {
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col = (x * 8) / biWidth;
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col = FlipHorizontal ? (7 - col) : col;
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*pT++ = NTSCColorBars75Amp100SatRGB24[0][col]; // Red
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*pT++ = NTSCColorBars75Amp100SatRGB24[1][col]; // Green
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*pT++ = NTSCColorBars75Amp100SatRGB24[2][col]; // Blue
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}
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}
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break;
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case IMAGE_XFER_BLACK:
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// Camma corrected Grayscale ramp
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{
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UINT x, col;
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PUCHAR pT = pLineBuffer;
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for (x = 0; x < biWidth; x++) {
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col = (255 * (x * 10) / biWidth) / 10;
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col = FlipHorizontal ? (255 - col) : col;
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*pT++ = (BYTE) col; // Red
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*pT++ = (BYTE) col; // Green
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*pT++ = (BYTE) col; // Blue
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}
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}
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break;
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case IMAGE_XFER_WHITE:
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// All white
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RtlFillMemory(
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pLineBuffer,
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biWidthBytes,
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(UCHAR) 255);
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break;
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case IMAGE_XFER_GRAY_INCREASING:
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// grayscale increasing with each image captured
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RtlFillMemory(
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pLineBuffer,
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biWidthBytes,
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(UCHAR) (pStrmEx->FrameInfo.PictureNumber * 8));
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break;
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default:
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break;
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}
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} // endif RGB24
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else if ((biBitCount == 16) && (biCompression == FOURCC_YUV422)) {
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switch (Command) {
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case IMAGE_XFER_NTSC_EIA_100AMP_100SAT:
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default:
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{
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UINT x, col;
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PUCHAR pT = pLineBuffer;
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for (x = 0; x < (biWidth / 2); x++) {
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col = (x * 8) / (biWidth / 2);
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col = FlipHorizontal ? (7 - col) : col;
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*pT++ = NTSCColorBars100Amp100SatYUV[0][col]; // U
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*pT++ = NTSCColorBars100Amp100SatYUV[1][col]; // Y
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*pT++ = NTSCColorBars100Amp100SatYUV[2][col]; // V
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*pT++ = NTSCColorBars100Amp100SatYUV[3][col]; // Y
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}
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}
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break;
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}
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}
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else {
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DbgLogError(("\'TestCap: Unknown format in ImageSynth!!!\n"));
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TRAP;
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}
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//
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// Copy the single line synthesized to all rows of the image
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//
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for (Line = 0; Line < LinesToCopy; Line++, pImage += biWidthBytes) {
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// Show some action on an otherwise static image
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// This will be a changing grayscale horizontal band
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// at the bottom of an RGB image and a changing color band at the
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// top of a YUV image
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if (Line >= 3 && Line <= 6) {
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UINT j;
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for (j = 0; j < biWidthBytes; j++) {
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*(pImage + j) = (UCHAR) pStrmEx->FrameInfo.PictureNumber;
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}
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continue;
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}
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// Copy the synthesized line
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RtlCopyMemory(
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pImage,
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pLineBuffer,
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biWidthBytes);
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}
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//
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// Report back the actual number of bytes copied to the destination buffer
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// (This can be smaller than the allocated buffer for compressed images)
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//
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pDataPacket->DataUsed = biSizeImage;
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}
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