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https://gitlab.winehq.org/wine/wine-gecko.git
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Bug 412753 - "Speed up JPEG decoding by another 10%" [p=alfredkayser@gmail.com (Alfred Kayser) r=stuart a=blocking1.9+]
This commit is contained in:
reed@reedloden.com
parent
85993b8df9
commit
79085d9d3d
@ -58,6 +58,12 @@
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extern "C" {
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#include "iccjpeg.h"
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#include "jpegint.h"
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METHODDEF(void)
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ycc_rgb_convert_argb (j_decompress_ptr cinfo,
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JSAMPIMAGE input_buf, JDIMENSION input_row,
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JSAMPARRAY output_buf, int num_rows);
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}
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NS_IMPL_ISUPPORTS1(nsJPEGDecoder, imgIDecoder)
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@ -363,22 +369,19 @@ nsresult nsJPEGDecoder::ProcessData(const char *data, PRUint32 count, PRUint32 *
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}
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if (!mismatch) {
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PRUint32 space, channels;
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PRUint32 type;
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switch (mInfo.out_color_space) {
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case JCS_GRAYSCALE:
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space = PT_GRAY;
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channels = 1;
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type = COLORSPACE_SH(PT_GRAY) | CHANNELS_SH(1) | BYTES_SH(1);
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break;
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case JCS_RGB:
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space = PT_RGB;
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channels = 3;
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type = COLORSPACE_SH(PT_RGB) | CHANNELS_SH(3) | BYTES_SH(1);
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break;
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case JCS_YCbCr:
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space = PT_YCbCr;
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channels = 3;
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type = COLORSPACE_SH(PT_YCbCr) | CHANNELS_SH(3) | BYTES_SH(1);
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break;
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case JCS_CMYK:
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space = PT_CMYK;
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channels = 4;
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type = COLORSPACE_SH(PT_CMYK) | CHANNELS_SH(4) | BYTES_SH(1);
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break;
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default:
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mState = JPEG_ERROR;
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@ -387,11 +390,6 @@ nsresult nsJPEGDecoder::ProcessData(const char *data, PRUint32 count, PRUint32 *
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return NS_ERROR_UNEXPECTED;
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}
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PRUint32 type =
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COLORSPACE_SH(space) |
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CHANNELS_SH(channels) |
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BYTES_SH(1);
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/* Adobe Photoshop writes YCCK/CMYK files with inverted data */
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if (mInfo.out_color_space == JCS_CMYK)
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type |= FLAVOR_SH(mInfo.saw_Adobe_marker ? 1 : 0);
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@ -525,12 +523,16 @@ nsresult nsJPEGDecoder::ProcessData(const char *data, PRUint32 count, PRUint32 *
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return NS_OK; /* I/O suspension */
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}
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/* If this is a progressive JPEG ... */
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if (mInfo.buffered_image) {
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mState = JPEG_DECOMPRESS_PROGRESSIVE;
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} else {
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mState = JPEG_DECOMPRESS_SEQUENTIAL;
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/* Force to use our YCbCr to Packed RGB converter when possible */
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if (!mTransform && !gfxPlatform::IsCMSEnabled() &&
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mInfo.jpeg_color_space == JCS_YCbCr && mInfo.out_color_space == JCS_RGB) {
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/* Special case for the most common case: transform from YCbCr direct into packed ARGB */
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mInfo.out_color_components = 4; /* Packed ARGB pixels are always 4 bytes...*/
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mInfo.cconvert->color_convert = ycc_rgb_convert_argb;
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}
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/* If this is a progressive JPEG ... */
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mState = mInfo.buffered_image ? JPEG_DECOMPRESS_PROGRESSIVE : JPEG_DECOMPRESS_SEQUENTIAL;
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}
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case JPEG_DECOMPRESS_SEQUENTIAL:
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@ -676,10 +678,19 @@ nsJPEGDecoder::OutputScanlines()
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mFrame->GetImageData(&imageData, &imageDataLength);
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while ((mInfo.output_scanline < mInfo.output_height)) {
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/* Use the Cairo image buffer as scanline buffer */
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PRUint32 *imageRow = ((PRUint32*)imageData) +
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(mInfo.output_scanline * mInfo.output_width);
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/* Use the Cairo image buffer as scanline buffer */
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if (mInfo.cconvert->color_convert == ycc_rgb_convert_argb) {
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/* Special case: scanline will be directly converted into packed ARGB */
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if (jpeg_read_scanlines(&mInfo, (JSAMPARRAY)&imageRow, 1) != 1) {
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rv = PR_FALSE; /* suspend */
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break;
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}
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continue; /* all done for this row! */
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}
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JSAMPROW sampleRow = (JSAMPROW)imageRow;
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if (!mTransform || (mInfo.out_color_space != JCS_GRAYSCALE &&
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mInfo.out_color_space != JCS_CMYK)) {
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@ -975,3 +986,255 @@ term_source (j_decompress_ptr jd)
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decoder->mImageLoad->GetIsMultiPartChannel(&isMutable);
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decoder->mFrame->SetMutable(isMutable);
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}
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/**************** YCbCr -> Cairo's RGB24/ARGB32 conversion: most common case **************/
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/*
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* YCbCr is defined per CCIR 601-1, except that Cb and Cr are
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* normalized to the range 0..MAXJSAMPLE rather than -0.5 .. 0.5.
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* The conversion equations to be implemented are therefore
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* R = Y + 1.40200 * Cr
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* G = Y - 0.34414 * Cb - 0.71414 * Cr
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* B = Y + 1.77200 * Cb
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* where Cb and Cr represent the incoming values less CENTERJSAMPLE.
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* (These numbers are derived from TIFF 6.0 section 21, dated 3-June-92.)
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*
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* To avoid floating-point arithmetic, we represent the fractional constants
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* as integers scaled up by 2^16 (about 4 digits precision); we have to divide
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* the products by 2^16, with appropriate rounding, to get the correct answer.
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* Notice that Y, being an integral input, does not contribute any fraction
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* so it need not participate in the rounding.
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*
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* For even more speed, we avoid doing any multiplications in the inner loop
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* by precalculating the constants times Cb and Cr for all possible values.
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* For 8-bit JSAMPLEs this is very reasonable (only 256 entries per table);
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* for 12-bit samples it is still acceptable. It's not very reasonable for
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* 16-bit samples, but if you want lossless storage you shouldn't be changing
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* colorspace anyway.
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* The Cr=>R and Cb=>B values can be rounded to integers in advance; the
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* values for the G calculation are left scaled up, since we must add them
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* together before rounding.
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*/
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#define SCALEBITS 16 /* speediest right-shift on some machines */
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/* Use static tables for color processing. */
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/* Four tables, each 256 entries of 4 bytes totals 4K which is not bad... */
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const int Cr_r_tab[(MAXJSAMPLE+1) * sizeof(int)] ={
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0xffffff4dUL, 0xffffff4eUL, 0xffffff4fUL, 0xffffff51UL, 0xffffff52UL, 0xffffff54UL,
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0xffffff55UL, 0xffffff56UL, 0xffffff58UL, 0xffffff59UL, 0xffffff5bUL, 0xffffff5cUL,
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0xffffff5dUL, 0xffffff5fUL, 0xffffff60UL, 0xffffff62UL, 0xffffff63UL, 0xffffff64UL,
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0xffffff66UL, 0xffffff67UL, 0xffffff69UL, 0xffffff6aUL, 0xffffff6bUL, 0xffffff6dUL,
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0xffffff6eUL, 0xffffff70UL, 0xffffff71UL, 0xffffff72UL, 0xffffff74UL, 0xffffff75UL,
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0xffffff77UL, 0xffffff78UL, 0xffffff79UL, 0xffffff7bUL, 0xffffff7cUL, 0xffffff7eUL,
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0xffffff7fUL, 0xffffff80UL, 0xffffff82UL, 0xffffff83UL, 0xffffff85UL, 0xffffff86UL,
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0xffffff87UL, 0xffffff89UL, 0xffffff8aUL, 0xffffff8cUL, 0xffffff8dUL, 0xffffff8eUL,
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0xffffff90UL, 0xffffff91UL, 0xffffff93UL, 0xffffff94UL, 0xffffff95UL, 0xffffff97UL,
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0xffffff98UL, 0xffffff9aUL, 0xffffff9bUL, 0xffffff9cUL, 0xffffff9eUL, 0xffffff9fUL,
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0xffffffa1UL, 0xffffffa2UL, 0xffffffa3UL, 0xffffffa5UL, 0xffffffa6UL, 0xffffffa8UL,
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0xffffffa9UL, 0xffffffaaUL, 0xffffffacUL, 0xffffffadUL, 0xffffffafUL, 0xffffffb0UL,
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0xffffffb1UL, 0xffffffb3UL, 0xffffffb4UL, 0xffffffb6UL, 0xffffffb7UL, 0xffffffb8UL,
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0xffffffbaUL, 0xffffffbbUL, 0xffffffbdUL, 0xffffffbeUL, 0xffffffc0UL, 0xffffffc1UL,
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0xffffffc2UL, 0xffffffc4UL, 0xffffffc5UL, 0xffffffc7UL, 0xffffffc8UL, 0xffffffc9UL,
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0xffffffcbUL, 0xffffffccUL, 0xffffffceUL, 0xffffffcfUL, 0xffffffd0UL, 0xffffffd2UL,
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0xffffffd3UL, 0xffffffd5UL, 0xffffffd6UL, 0xffffffd7UL, 0xffffffd9UL, 0xffffffdaUL,
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0xffffffdcUL, 0xffffffddUL, 0xffffffdeUL, 0xffffffe0UL, 0xffffffe1UL, 0xffffffe3UL,
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0xffffffe4UL, 0xffffffe5UL, 0xffffffe7UL, 0xffffffe8UL, 0xffffffeaUL, 0xffffffebUL,
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0xffffffecUL, 0xffffffeeUL, 0xffffffefUL, 0xfffffff1UL, 0xfffffff2UL, 0xfffffff3UL,
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0xfffffff5UL, 0xfffffff6UL, 0xfffffff8UL, 0xfffffff9UL, 0xfffffffaUL, 0xfffffffcUL,
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0xfffffffdUL, 0xffffffffUL, 0x00UL, 0x01UL, 0x03UL, 0x04UL,
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0x06UL, 0x07UL, 0x08UL, 0x0aUL, 0x0bUL, 0x0dUL,
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0x0eUL, 0x0fUL, 0x11UL, 0x12UL, 0x14UL, 0x15UL,
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0x16UL, 0x18UL, 0x19UL, 0x1bUL, 0x1cUL, 0x1dUL,
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0x1fUL, 0x20UL, 0x22UL, 0x23UL, 0x24UL, 0x26UL,
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0x27UL, 0x29UL, 0x2aUL, 0x2bUL, 0x2dUL, 0x2eUL,
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0x30UL, 0x31UL, 0x32UL, 0x34UL, 0x35UL, 0x37UL,
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0x38UL, 0x39UL, 0x3bUL, 0x3cUL, 0x3eUL, 0x3fUL,
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0x40UL, 0x42UL, 0x43UL, 0x45UL, 0x46UL, 0x48UL,
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0x49UL, 0x4aUL, 0x4cUL, 0x4dUL, 0x4fUL, 0x50UL,
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0x51UL, 0x53UL, 0x54UL, 0x56UL, 0x57UL, 0x58UL,
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0x5aUL, 0x5bUL, 0x5dUL, 0x5eUL, 0x5fUL, 0x61UL,
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0x62UL, 0x64UL, 0x65UL, 0x66UL, 0x68UL, 0x69UL,
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0x6bUL, 0x6cUL, 0x6dUL, 0x6fUL, 0x70UL, 0x72UL,
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0x73UL, 0x74UL, 0x76UL, 0x77UL, 0x79UL, 0x7aUL,
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0x7bUL, 0x7dUL, 0x7eUL, 0x80UL, 0x81UL, 0x82UL,
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0x84UL, 0x85UL, 0x87UL, 0x88UL, 0x89UL, 0x8bUL,
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0x8cUL, 0x8eUL, 0x8fUL, 0x90UL, 0x92UL, 0x93UL,
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0x95UL, 0x96UL, 0x97UL, 0x99UL, 0x9aUL, 0x9cUL,
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0x9dUL, 0x9eUL, 0xa0UL, 0xa1UL, 0xa3UL, 0xa4UL,
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0xa5UL, 0xa7UL, 0xa8UL, 0xaaUL, 0xabUL, 0xacUL,
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0xaeUL, 0xafUL, 0xb1UL, 0xb2UL
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};
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const int Cb_b_tab[(MAXJSAMPLE+1) * sizeof(int)] ={
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0xffffff1dUL, 0xffffff1fUL, 0xffffff21UL, 0xffffff22UL, 0xffffff24UL, 0xffffff26UL,
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0xffffff28UL, 0xffffff2aUL, 0xffffff2bUL, 0xffffff2dUL, 0xffffff2fUL, 0xffffff31UL,
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0xffffff32UL, 0xffffff34UL, 0xffffff36UL, 0xffffff38UL, 0xffffff3aUL, 0xffffff3bUL,
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0xffffff3dUL, 0xffffff3fUL, 0xffffff41UL, 0xffffff42UL, 0xffffff44UL, 0xffffff46UL,
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0xffffff48UL, 0xffffff49UL, 0xffffff4bUL, 0xffffff4dUL, 0xffffff4fUL, 0xffffff51UL,
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0xffffff52UL, 0xffffff54UL, 0xffffff56UL, 0xffffff58UL, 0xffffff59UL, 0xffffff5bUL,
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0xffffff5dUL, 0xffffff5fUL, 0xffffff61UL, 0xffffff62UL, 0xffffff64UL, 0xffffff66UL,
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0xffffff68UL, 0xffffff69UL, 0xffffff6bUL, 0xffffff6dUL, 0xffffff6fUL, 0xffffff70UL,
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0xffffff72UL, 0xffffff74UL, 0xffffff76UL, 0xffffff78UL, 0xffffff79UL, 0xffffff7bUL,
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0xffffff7dUL, 0xffffff7fUL, 0xffffff80UL, 0xffffff82UL, 0xffffff84UL, 0xffffff86UL,
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0xffffff88UL, 0xffffff89UL, 0xffffff8bUL, 0xffffff8dUL, 0xffffff8fUL, 0xffffff90UL,
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0xffffff92UL, 0xffffff94UL, 0xffffff96UL, 0xffffff97UL, 0xffffff99UL, 0xffffff9bUL,
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0xffffff9dUL, 0xffffff9fUL, 0xffffffa0UL, 0xffffffa2UL, 0xffffffa4UL, 0xffffffa6UL,
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0xffffffa7UL, 0xffffffa9UL, 0xffffffabUL, 0xffffffadUL, 0xffffffaeUL, 0xffffffb0UL,
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0xffffffb2UL, 0xffffffb4UL, 0xffffffb6UL, 0xffffffb7UL, 0xffffffb9UL, 0xffffffbbUL,
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0xffffffbdUL, 0xffffffbeUL, 0xffffffc0UL, 0xffffffc2UL, 0xffffffc4UL, 0xffffffc6UL,
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0xffffffc7UL, 0xffffffc9UL, 0xffffffcbUL, 0xffffffcdUL, 0xffffffceUL, 0xffffffd0UL,
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0xffffffd2UL, 0xffffffd4UL, 0xffffffd5UL, 0xffffffd7UL, 0xffffffd9UL, 0xffffffdbUL,
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0xffffffddUL, 0xffffffdeUL, 0xffffffe0UL, 0xffffffe2UL, 0xffffffe4UL, 0xffffffe5UL,
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0xffffffe7UL, 0xffffffe9UL, 0xffffffebUL, 0xffffffedUL, 0xffffffeeUL, 0xfffffff0UL,
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0xfffffff2UL, 0xfffffff4UL, 0xfffffff5UL, 0xfffffff7UL, 0xfffffff9UL, 0xfffffffbUL,
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0xfffffffcUL, 0xfffffffeUL, 0x00UL, 0x02UL, 0x04UL, 0x05UL,
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0x07UL, 0x09UL, 0x0bUL, 0x0cUL, 0x0eUL, 0x10UL,
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0x12UL, 0x13UL, 0x15UL, 0x17UL, 0x19UL, 0x1bUL,
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0x1cUL, 0x1eUL, 0x20UL, 0x22UL, 0x23UL, 0x25UL,
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0x27UL, 0x29UL, 0x2bUL, 0x2cUL, 0x2eUL, 0x30UL,
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0x32UL, 0x33UL, 0x35UL, 0x37UL, 0x39UL, 0x3aUL,
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0x3cUL, 0x3eUL, 0x40UL, 0x42UL, 0x43UL, 0x45UL,
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0x47UL, 0x49UL, 0x4aUL, 0x4cUL, 0x4eUL, 0x50UL,
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0x52UL, 0x53UL, 0x55UL, 0x57UL, 0x59UL, 0x5aUL,
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0x5cUL, 0x5eUL, 0x60UL, 0x61UL, 0x63UL, 0x65UL,
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0x67UL, 0x69UL, 0x6aUL, 0x6cUL, 0x6eUL, 0x70UL,
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0x71UL, 0x73UL, 0x75UL, 0x77UL, 0x78UL, 0x7aUL,
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0x7cUL, 0x7eUL, 0x80UL, 0x81UL, 0x83UL, 0x85UL,
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0x87UL, 0x88UL, 0x8aUL, 0x8cUL, 0x8eUL, 0x90UL,
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0x91UL, 0x93UL, 0x95UL, 0x97UL, 0x98UL, 0x9aUL,
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0x9cUL, 0x9eUL, 0x9fUL, 0xa1UL, 0xa3UL, 0xa5UL,
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0xa7UL, 0xa8UL, 0xaaUL, 0xacUL, 0xaeUL, 0xafUL,
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0xb1UL, 0xb3UL, 0xb5UL, 0xb7UL, 0xb8UL, 0xbaUL,
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0xbcUL, 0xbeUL, 0xbfUL, 0xc1UL, 0xc3UL, 0xc5UL,
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0xc6UL, 0xc8UL, 0xcaUL, 0xccUL, 0xceUL, 0xcfUL,
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0xd1UL, 0xd3UL, 0xd5UL, 0xd6UL, 0xd8UL, 0xdaUL,
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0xdcUL, 0xdeUL, 0xdfUL, 0xe1UL
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};
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const int Cr_g_tab[(MAXJSAMPLE+1) * sizeof(int)] ={
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0x5b6900UL, 0x5ab22eUL, 0x59fb5cUL, 0x59448aUL, 0x588db8UL, 0x57d6e6UL,
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0x572014UL, 0x566942UL, 0x55b270UL, 0x54fb9eUL, 0x5444ccUL, 0x538dfaUL,
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0x52d728UL, 0x522056UL, 0x516984UL, 0x50b2b2UL, 0x4ffbe0UL, 0x4f450eUL,
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0x4e8e3cUL, 0x4dd76aUL, 0x4d2098UL, 0x4c69c6UL, 0x4bb2f4UL, 0x4afc22UL,
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0x4a4550UL, 0x498e7eUL, 0x48d7acUL, 0x4820daUL, 0x476a08UL, 0x46b336UL,
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0x45fc64UL, 0x454592UL, 0x448ec0UL, 0x43d7eeUL, 0x43211cUL, 0x426a4aUL,
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0x41b378UL, 0x40fca6UL, 0x4045d4UL, 0x3f8f02UL, 0x3ed830UL, 0x3e215eUL,
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0x3d6a8cUL, 0x3cb3baUL, 0x3bfce8UL, 0x3b4616UL, 0x3a8f44UL, 0x39d872UL,
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0x3921a0UL, 0x386aceUL, 0x37b3fcUL, 0x36fd2aUL, 0x364658UL, 0x358f86UL,
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0x34d8b4UL, 0x3421e2UL, 0x336b10UL, 0x32b43eUL, 0x31fd6cUL, 0x31469aUL,
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0x308fc8UL, 0x2fd8f6UL, 0x2f2224UL, 0x2e6b52UL, 0x2db480UL, 0x2cfdaeUL,
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0x2c46dcUL, 0x2b900aUL, 0x2ad938UL, 0x2a2266UL, 0x296b94UL, 0x28b4c2UL,
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0x27fdf0UL, 0x27471eUL, 0x26904cUL, 0x25d97aUL, 0x2522a8UL, 0x246bd6UL,
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0x23b504UL, 0x22fe32UL, 0x224760UL, 0x21908eUL, 0x20d9bcUL, 0x2022eaUL,
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0x1f6c18UL, 0x1eb546UL, 0x1dfe74UL, 0x1d47a2UL, 0x1c90d0UL, 0x1bd9feUL,
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0x1b232cUL, 0x1a6c5aUL, 0x19b588UL, 0x18feb6UL, 0x1847e4UL, 0x179112UL,
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0x16da40UL, 0x16236eUL, 0x156c9cUL, 0x14b5caUL, 0x13fef8UL, 0x134826UL,
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0x129154UL, 0x11da82UL, 0x1123b0UL, 0x106cdeUL, 0xfb60cUL, 0xeff3aUL,
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0xe4868UL, 0xd9196UL, 0xcdac4UL, 0xc23f2UL, 0xb6d20UL, 0xab64eUL,
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0x9ff7cUL, 0x948aaUL, 0x891d8UL, 0x7db06UL, 0x72434UL, 0x66d62UL,
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0x5b690UL, 0x4ffbeUL, 0x448ecUL, 0x3921aUL, 0x2db48UL, 0x22476UL,
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0x16da4UL, 0xb6d2UL, 0x0UL, 0xffff492eUL, 0xfffe925cUL, 0xfffddb8aUL,
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0xfffd24b8UL, 0xfffc6de6UL, 0xfffbb714UL, 0xfffb0042UL, 0xfffa4970UL, 0xfff9929eUL,
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0xfff8dbccUL, 0xfff824faUL, 0xfff76e28UL, 0xfff6b756UL, 0xfff60084UL, 0xfff549b2UL,
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0xfff492e0UL, 0xfff3dc0eUL, 0xfff3253cUL, 0xfff26e6aUL, 0xfff1b798UL, 0xfff100c6UL,
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0xfff049f4UL, 0xffef9322UL, 0xffeedc50UL, 0xffee257eUL, 0xffed6eacUL, 0xffecb7daUL,
|
||||
0xffec0108UL, 0xffeb4a36UL, 0xffea9364UL, 0xffe9dc92UL, 0xffe925c0UL, 0xffe86eeeUL,
|
||||
0xffe7b81cUL, 0xffe7014aUL, 0xffe64a78UL, 0xffe593a6UL, 0xffe4dcd4UL, 0xffe42602UL,
|
||||
0xffe36f30UL, 0xffe2b85eUL, 0xffe2018cUL, 0xffe14abaUL, 0xffe093e8UL, 0xffdfdd16UL,
|
||||
0xffdf2644UL, 0xffde6f72UL, 0xffddb8a0UL, 0xffdd01ceUL, 0xffdc4afcUL, 0xffdb942aUL,
|
||||
0xffdadd58UL, 0xffda2686UL, 0xffd96fb4UL, 0xffd8b8e2UL, 0xffd80210UL, 0xffd74b3eUL,
|
||||
0xffd6946cUL, 0xffd5dd9aUL, 0xffd526c8UL, 0xffd46ff6UL, 0xffd3b924UL, 0xffd30252UL,
|
||||
0xffd24b80UL, 0xffd194aeUL, 0xffd0dddcUL, 0xffd0270aUL, 0xffcf7038UL, 0xffceb966UL,
|
||||
0xffce0294UL, 0xffcd4bc2UL, 0xffcc94f0UL, 0xffcbde1eUL, 0xffcb274cUL, 0xffca707aUL,
|
||||
0xffc9b9a8UL, 0xffc902d6UL, 0xffc84c04UL, 0xffc79532UL, 0xffc6de60UL, 0xffc6278eUL,
|
||||
0xffc570bcUL, 0xffc4b9eaUL, 0xffc40318UL, 0xffc34c46UL, 0xffc29574UL, 0xffc1dea2UL,
|
||||
0xffc127d0UL, 0xffc070feUL, 0xffbfba2cUL, 0xffbf035aUL, 0xffbe4c88UL, 0xffbd95b6UL,
|
||||
0xffbcdee4UL, 0xffbc2812UL, 0xffbb7140UL, 0xffbaba6eUL, 0xffba039cUL, 0xffb94ccaUL,
|
||||
0xffb895f8UL, 0xffb7df26UL, 0xffb72854UL, 0xffb67182UL, 0xffb5bab0UL, 0xffb503deUL,
|
||||
0xffb44d0cUL, 0xffb3963aUL, 0xffb2df68UL, 0xffb22896UL, 0xffb171c4UL, 0xffb0baf2UL,
|
||||
0xffb00420UL, 0xffaf4d4eUL, 0xffae967cUL, 0xffaddfaaUL, 0xffad28d8UL, 0xffac7206UL,
|
||||
0xffabbb34UL, 0xffab0462UL, 0xffaa4d90UL, 0xffa996beUL, 0xffa8dfecUL, 0xffa8291aUL,
|
||||
0xffa77248UL, 0xffa6bb76UL, 0xffa604a4UL, 0xffa54dd2UL
|
||||
};
|
||||
|
||||
const int Cb_g_tab[(MAXJSAMPLE+1) * sizeof(int)] ={
|
||||
0x2c8d00UL, 0x2c34e6UL, 0x2bdcccUL, 0x2b84b2UL, 0x2b2c98UL, 0x2ad47eUL,
|
||||
0x2a7c64UL, 0x2a244aUL, 0x29cc30UL, 0x297416UL, 0x291bfcUL, 0x28c3e2UL,
|
||||
0x286bc8UL, 0x2813aeUL, 0x27bb94UL, 0x27637aUL, 0x270b60UL, 0x26b346UL,
|
||||
0x265b2cUL, 0x260312UL, 0x25aaf8UL, 0x2552deUL, 0x24fac4UL, 0x24a2aaUL,
|
||||
0x244a90UL, 0x23f276UL, 0x239a5cUL, 0x234242UL, 0x22ea28UL, 0x22920eUL,
|
||||
0x2239f4UL, 0x21e1daUL, 0x2189c0UL, 0x2131a6UL, 0x20d98cUL, 0x208172UL,
|
||||
0x202958UL, 0x1fd13eUL, 0x1f7924UL, 0x1f210aUL, 0x1ec8f0UL, 0x1e70d6UL,
|
||||
0x1e18bcUL, 0x1dc0a2UL, 0x1d6888UL, 0x1d106eUL, 0x1cb854UL, 0x1c603aUL,
|
||||
0x1c0820UL, 0x1bb006UL, 0x1b57ecUL, 0x1affd2UL, 0x1aa7b8UL, 0x1a4f9eUL,
|
||||
0x19f784UL, 0x199f6aUL, 0x194750UL, 0x18ef36UL, 0x18971cUL, 0x183f02UL,
|
||||
0x17e6e8UL, 0x178eceUL, 0x1736b4UL, 0x16de9aUL, 0x168680UL, 0x162e66UL,
|
||||
0x15d64cUL, 0x157e32UL, 0x152618UL, 0x14cdfeUL, 0x1475e4UL, 0x141dcaUL,
|
||||
0x13c5b0UL, 0x136d96UL, 0x13157cUL, 0x12bd62UL, 0x126548UL, 0x120d2eUL,
|
||||
0x11b514UL, 0x115cfaUL, 0x1104e0UL, 0x10acc6UL, 0x1054acUL, 0xffc92UL,
|
||||
0xfa478UL, 0xf4c5eUL, 0xef444UL, 0xe9c2aUL, 0xe4410UL, 0xdebf6UL,
|
||||
0xd93dcUL, 0xd3bc2UL, 0xce3a8UL, 0xc8b8eUL, 0xc3374UL, 0xbdb5aUL,
|
||||
0xb8340UL, 0xb2b26UL, 0xad30cUL, 0xa7af2UL, 0xa22d8UL, 0x9cabeUL,
|
||||
0x972a4UL, 0x91a8aUL, 0x8c270UL, 0x86a56UL, 0x8123cUL, 0x7ba22UL,
|
||||
0x76208UL, 0x709eeUL, 0x6b1d4UL, 0x659baUL, 0x601a0UL, 0x5a986UL,
|
||||
0x5516cUL, 0x4f952UL, 0x4a138UL, 0x4491eUL, 0x3f104UL, 0x398eaUL,
|
||||
0x340d0UL, 0x2e8b6UL, 0x2909cUL, 0x23882UL, 0x1e068UL, 0x1884eUL,
|
||||
0x13034UL, 0xd81aUL, 0x8000UL, 0x27e6UL, 0xffffcfccUL, 0xffff77b2UL,
|
||||
0xffff1f98UL, 0xfffec77eUL, 0xfffe6f64UL, 0xfffe174aUL, 0xfffdbf30UL, 0xfffd6716UL,
|
||||
0xfffd0efcUL, 0xfffcb6e2UL, 0xfffc5ec8UL, 0xfffc06aeUL, 0xfffbae94UL, 0xfffb567aUL,
|
||||
0xfffafe60UL, 0xfffaa646UL, 0xfffa4e2cUL, 0xfff9f612UL, 0xfff99df8UL, 0xfff945deUL,
|
||||
0xfff8edc4UL, 0xfff895aaUL, 0xfff83d90UL, 0xfff7e576UL, 0xfff78d5cUL, 0xfff73542UL,
|
||||
0xfff6dd28UL, 0xfff6850eUL, 0xfff62cf4UL, 0xfff5d4daUL, 0xfff57cc0UL, 0xfff524a6UL,
|
||||
0xfff4cc8cUL, 0xfff47472UL, 0xfff41c58UL, 0xfff3c43eUL, 0xfff36c24UL, 0xfff3140aUL,
|
||||
0xfff2bbf0UL, 0xfff263d6UL, 0xfff20bbcUL, 0xfff1b3a2UL, 0xfff15b88UL, 0xfff1036eUL,
|
||||
0xfff0ab54UL, 0xfff0533aUL, 0xffeffb20UL, 0xffefa306UL, 0xffef4aecUL, 0xffeef2d2UL,
|
||||
0xffee9ab8UL, 0xffee429eUL, 0xffedea84UL, 0xffed926aUL, 0xffed3a50UL, 0xffece236UL,
|
||||
0xffec8a1cUL, 0xffec3202UL, 0xffebd9e8UL, 0xffeb81ceUL, 0xffeb29b4UL, 0xffead19aUL,
|
||||
0xffea7980UL, 0xffea2166UL, 0xffe9c94cUL, 0xffe97132UL, 0xffe91918UL, 0xffe8c0feUL,
|
||||
0xffe868e4UL, 0xffe810caUL, 0xffe7b8b0UL, 0xffe76096UL, 0xffe7087cUL, 0xffe6b062UL,
|
||||
0xffe65848UL, 0xffe6002eUL, 0xffe5a814UL, 0xffe54ffaUL, 0xffe4f7e0UL, 0xffe49fc6UL,
|
||||
0xffe447acUL, 0xffe3ef92UL, 0xffe39778UL, 0xffe33f5eUL, 0xffe2e744UL, 0xffe28f2aUL,
|
||||
0xffe23710UL, 0xffe1def6UL, 0xffe186dcUL, 0xffe12ec2UL, 0xffe0d6a8UL, 0xffe07e8eUL,
|
||||
0xffe02674UL, 0xffdfce5aUL, 0xffdf7640UL, 0xffdf1e26UL, 0xffdec60cUL, 0xffde6df2UL,
|
||||
0xffde15d8UL, 0xffddbdbeUL, 0xffdd65a4UL, 0xffdd0d8aUL, 0xffdcb570UL, 0xffdc5d56UL,
|
||||
0xffdc053cUL, 0xffdbad22UL, 0xffdb5508UL, 0xffdafceeUL, 0xffdaa4d4UL, 0xffda4cbaUL,
|
||||
0xffd9f4a0UL, 0xffd99c86UL, 0xffd9446cUL, 0xffd8ec52UL, 0xffd89438UL, 0xffd83c1eUL,
|
||||
0xffd7e404UL, 0xffd78beaUL, 0xffd733d0UL, 0xffd6dbb6UL, 0xffd6839cUL, 0xffd62b82UL,
|
||||
0xffd5d368UL, 0xffd57b4eUL, 0xffd52334UL, 0xffd4cb1aUL
|
||||
};
|
||||
|
||||
|
||||
METHODDEF(void)
|
||||
ycc_rgb_convert_argb (j_decompress_ptr cinfo,
|
||||
JSAMPIMAGE input_buf, JDIMENSION input_row,
|
||||
JSAMPARRAY output_buf, int num_rows)
|
||||
{
|
||||
JDIMENSION num_cols = cinfo->output_width;
|
||||
JSAMPLE * range_limit = cinfo->sample_range_limit;
|
||||
|
||||
SHIFT_TEMPS
|
||||
|
||||
/* This is used if we don't have SSE2 */
|
||||
|
||||
while (--num_rows >= 0) {
|
||||
JSAMPROW inptr0 = input_buf[0][input_row];
|
||||
JSAMPROW inptr1 = input_buf[1][input_row];
|
||||
JSAMPROW inptr2 = input_buf[2][input_row];
|
||||
input_row++;
|
||||
PRUint32 *outptr = (PRUint32 *) *output_buf++;
|
||||
for (JDIMENSION col = 0; col < num_cols; col++) {
|
||||
int y = GETJSAMPLE(inptr0[col]);
|
||||
int cb = GETJSAMPLE(inptr1[col]);
|
||||
int cr = GETJSAMPLE(inptr2[col]);
|
||||
JSAMPLE * range_limit_y = range_limit + y;
|
||||
/* Range-limiting is essential due to noise introduced by DCT losses. */
|
||||
outptr[col] = 0xFF000000 |
|
||||
( range_limit_y[Cr_r_tab[cr]] << 16 ) |
|
||||
( range_limit_y[((int) RIGHT_SHIFT(Cb_g_tab[cb] + Cr_g_tab[cr], SCALEBITS))] << 8 ) |
|
||||
( range_limit_y[Cb_b_tab[cb]] );
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
Loading…
Reference in New Issue
Block a user