diff options
Diffstat (limited to 'www/libxul/files/patch-bug791305')
| -rw-r--r-- | www/libxul/files/patch-bug791305 | 107 |
1 files changed, 107 insertions, 0 deletions
diff --git a/www/libxul/files/patch-bug791305 b/www/libxul/files/patch-bug791305 new file mode 100644 index 0000000..534e7f2 --- /dev/null +++ b/www/libxul/files/patch-bug791305 @@ -0,0 +1,107 @@ +commit c269a16 +Author: Jeff Muizelaar <jmuizelaar@mozilla.com> +Date: Fri Sep 14 15:54:55 2012 -0400 + + Bug 791305. Use libjpeg's color conversion code instead of our own. r=joe,r=khuey + + libjpeg-turbo supports converting directly to a format compatible with cairo's + FORMAT_RGB24. Use that instead of our own handcoded function. This also gives + us SSE2 and NEON version of this function. + + --HG-- + extra : rebase_source : 18f48925f023a33ec2a097d4f4e5cc2ab40be1e9 +--- + configure.in | 6 +- + image/decoders/nsJPEGDecoder.cpp | 311 ++------------------------------------- + 2 files changed, 20 insertions(+), 297 deletions(-) + +diff --git image/decoders/nsJPEGDecoder.cpp image/decoders/nsJPEGDecoder.cpp +index c1fb515..1d2a259 100644 +--- image/decoders/nsJPEGDecoder.cpp ++++ image/decoders/nsJPEGDecoder.cpp +@@ -22,6 +22,13 @@ + extern "C" { + #include "iccjpeg.h" + ++#ifdef JCS_EXTENSIONS ++#if defined(IS_BIG_ENDIAN) ++#define MOZ_JCS_EXT_NATIVE_ENDIAN_XRGB JCS_EXT_XRGB ++#else ++#define MOZ_JCS_EXT_NATIVE_ENDIAN_XRGB JCS_EXT_BGRX ++#endif ++#else + /* Colorspace conversion (copied from jpegint.h) */ + struct jpeg_color_deconverter { + JMETHOD(void, start_pass, (j_decompress_ptr cinfo)); +@@ -34,6 +41,7 @@ METHODDEF(void) + ycc_rgb_convert_argb (j_decompress_ptr cinfo, + JSAMPIMAGE input_buf, JDIMENSION input_row, + JSAMPARRAY output_buf, int num_rows); ++#endif + } + + static void cmyk_convert_rgb(JSAMPROW row, JDIMENSION width); +@@ -329,7 +340,18 @@ nsJPEGDecoder::WriteInternal(const char *aBuffer, PRUint32 aCount) + case JCS_GRAYSCALE: + case JCS_RGB: + case JCS_YCbCr: ++#ifdef JCS_EXTENSIONS ++ // if we're not color managing we can decode directly to ++ // MOZ_JCS_EXT_NATIVE_ENDIAN_XRGB ++ if (mCMSMode != eCMSMode_All) { ++ mInfo.out_color_space = MOZ_JCS_EXT_NATIVE_ENDIAN_XRGB; ++ mInfo.out_color_components = 4; ++ } else { ++ mInfo.out_color_space = JCS_RGB; ++ } ++#else + mInfo.out_color_space = JCS_RGB; ++#endif + break; + case JCS_CMYK: + case JCS_YCCK: +@@ -397,6 +419,7 @@ nsJPEGDecoder::WriteInternal(const char *aBuffer, PRUint32 aCount) + return; /* I/O suspension */ + } + ++#ifndef JCS_EXTENSIONS + /* Force to use our YCbCr to Packed RGB converter when possible */ + if (!mTransform && (mCMSMode != eCMSMode_All) && + mInfo.jpeg_color_space == JCS_YCbCr && mInfo.out_color_space == JCS_RGB) { +@@ -404,6 +427,7 @@ nsJPEGDecoder::WriteInternal(const char *aBuffer, PRUint32 aCount) + mInfo.out_color_components = 4; /* Packed ARGB pixels are always 4 bytes...*/ + mInfo.cconvert->color_convert = ycc_rgb_convert_argb; + } ++#endif + + /* If this is a progressive JPEG ... */ + mState = mInfo.buffered_image ? JPEG_DECOMPRESS_PROGRESSIVE : JPEG_DECOMPRESS_SEQUENTIAL; +@@ -542,7 +566,11 @@ nsJPEGDecoder::OutputScanlines(bool* suspend) + PRUint32 *imageRow = ((PRUint32*)mImageData) + + (mInfo.output_scanline * mInfo.output_width); + ++#ifdef JCS_EXTENSIONS ++ if (mInfo.out_color_space == MOZ_JCS_EXT_NATIVE_ENDIAN_XRGB) { ++#else + if (mInfo.cconvert->color_convert == ycc_rgb_convert_argb) { ++#endif + /* Special case: scanline will be directly converted into packed ARGB */ + if (jpeg_read_scanlines(&mInfo, (JSAMPARRAY)&imageRow, 1) != 1) { + *suspend = true; /* suspend */ +@@ -858,6 +887,7 @@ term_source (j_decompress_ptr jd) + } // namespace mozilla + + ++#ifndef JCS_EXTENSIONS + /**************** YCbCr -> Cairo's RGB24/ARGB32 conversion: most common case **************/ + + /* +@@ -1130,7 +1160,8 @@ ycc_rgb_convert_argb (j_decompress_ptr cinfo, + } + } + } ++#endif + + + /**************** Inverted CMYK -> RGB conversion **************/ + /* |
