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authorJ M Rossy <[email protected]>2015-07-29 15:40:09 -0700
committerJ M Rossy <[email protected]>2015-07-29 16:34:40 -0700
commit5d61a4a79a1e96dc5d9af1e5e712c84507307544 (patch)
tree49ed270893578cd18758b74ffcca16dc7ab948d6 /avscamera/sys/RGB24Synthesizer.cpp
parent5d41613e26e147d2300c786bb2b34cb4b4067a25 (diff)
Samples update for public Windows 10 release
Fix #2 Enabling WPP Recorder in Sensors Samples causes errors Fix #4 Add back fixed KMDOD sample Add new BarcodeScanner sample in pos folder Add new MagneticStripeReader sample in pos folder Add new SynpaticsTouch sample in input folder Add new Power Engine Plugin sample in pofx folder Add new DeviceMft sample in avstream folder Add new AvsCamera sample in root Add new SimBatt sample in root Add other pre-existing samples not yet released for Win10
Diffstat (limited to 'avscamera/sys/RGB24Synthesizer.cpp')
-rw-r--r--avscamera/sys/RGB24Synthesizer.cpp133
1 files changed, 133 insertions, 0 deletions
diff --git a/avscamera/sys/RGB24Synthesizer.cpp b/avscamera/sys/RGB24Synthesizer.cpp
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+++ b/avscamera/sys/RGB24Synthesizer.cpp
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+/**************************************************************************
+
+ A/V Stream Camera Sample
+
+ Copyright (c) 2014, Microsoft Corporation.
+
+ File:
+
+ RGB24Synthesizer.cpp
+
+ Abstract:
+
+ This file contains the implementation of CRGB24Synthesizer.
+
+ CRGB24Synthesizer is derived from CRGBSynthesizer. It uses the RGB
+ color space and defines a Commit() function that reformats pixels into
+ the RGB24 format. RGB24 uses 8 bits per primary and 3 bytes per pixel
+ in a single plane.
+
+ History:
+
+ created 4/14/2014
+
+**************************************************************************/
+
+#include "Common.h"
+
+/**************************************************************************
+
+ LOCKED CODE
+
+**************************************************************************/
+
+#ifdef ALLOC_PRAGMA
+#pragma code_seg()
+#endif // ALLOC_PRAGMA
+
+// suppressed due to Esp:773
+#pragma warning (push)
+#pragma warning( disable:26015 ) // Suppress OACR error. Seems nonsensical. TODO: Must revisit.
+#pragma warning( disable:26019 )
+_Success_(return > 0)
+ULONG
+CRGB24Synthesizer::
+Commit(
+ _Out_writes_bytes_(Size)
+ PUCHAR Buffer,
+ _In_ ULONG Size,
+ _In_ ULONG Stride
+)
+/*++
+
+Routine Description:
+
+ Copy (and reformat, if necessary) pixels from the internal scratch
+ buffer. If the output format decimates chrominance, do it here.
+
+Arguments:
+
+ Buffer -
+ The output buffer to fill.
+
+ Size -
+ The size of the output buffer in bytes.
+
+ Stride -
+ The length of a row in bytes.
+
+Return Value:
+
+ Number of bytes copied into Buffer.
+
+--*/
+{
+ // In case stride isn't initialized.
+ if( Stride==0 )
+ {
+ Stride = m_OutputStride;
+ }
+
+ // These are impossible conditions.
+ if( !( Buffer &&
+ m_Buffer &&
+ (Size&3)==0 && // the rows are dword aligned, so the size must be too.
+ Size>3 && // there must be room for at least 1 pixel
+ (Stride&3)==0 && // rows should be DWORD aligned
+ Stride>3 && // rows should contain at least 1 pixel
+ m_Height>0 &&
+ m_Width>0
+ ) )
+ {
+ NT_ASSERT(FALSE);
+ return 0;
+ }
+
+ ULONG limit = min( Size/Stride, m_Height );
+ for( ULONG row=0; row<limit; row++ )
+ {
+ PDWORD pSrc = (PDWORD) GetImageLocation( 0, m_FlipVertical ? (m_Height - row -1) : row );
+ PUCHAR pDst = Buffer + (row * Stride);
+ ULONG col = min( m_Width, Stride/3 );
+
+ while( col )
+ {
+ // This optimizes the copy fairly well on most machines.
+ if( col>=4 )
+ {
+ DWORD P0 = pSrc[0];
+ DWORD P1 = pSrc[1];
+ DWORD P2 = pSrc[2];
+ DWORD P3 = pSrc[3];
+ ((PDWORD) pDst)[0] = ((P0 ) & 0x00FFFFFF) | (P1 << 24);
+ ((PDWORD) pDst)[1] = ((P1 >> 8) & 0x0000FFFF) | (P2 << 16);
+ ((PDWORD) pDst)[2] = ((P2 >> 16) & 0x000000FF) | (P3 << 8);
+ pDst += 4 * 3;
+ pSrc += 4;
+ col -= 4;
+ }
+ else
+ {
+ DWORD P0 = *pSrc++;
+ *pDst++ = (UCHAR) (P0);
+ *pDst++ = (UCHAR) (P0 >> 8);
+ *pDst++ = (UCHAR) (P0 >> 16);
+ col--;
+ }
+ }
+ }
+
+ return limit * Stride;
+}
+// suppressed due to Esp:773
+#pragma warning (pop)