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43 lines
1.7 KiB
Text
43 lines
1.7 KiB
Text
https://bugzilla.mozilla.org/show_bug.cgi?id=1269654#c5
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https://bug1269654.bmoattachments.org/attachment.cgi?id=8749234
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handle big-endian formats in Cairo format conversions
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# HG changeset patch
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# User Lee Salzman <lsalzman@mozilla.com>
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# Date 1462463631 14400
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# Thu May 05 11:53:51 2016 -0400
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# Node ID 8da374804a09977c8f89af5e6e0cb37cb074595d
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# Parent 29662e28a9c93ac67ee0b8ddfb65a9f29bbf73f5
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handle big-endian formats in Cairo format conversions
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--- gfx/2d/HelpersCairo.h.orig 2019-12-02 17:51:16.633474000 +0100
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+++ gfx/2d/HelpersCairo.h 2019-12-02 17:52:44.939998000 +0100
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@@ -147,7 +147,14 @@ static inline cairo_format_t GfxFormatToCairoFormat(Su
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case SurfaceFormat::R5G6B5_UINT16:
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return CAIRO_FORMAT_RGB16_565;
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default:
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- gfxCriticalError() << "Unknown image format " << (int)format;
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+ // _UINT32 formats don't match B8G8R8[AX]8 on big-endian platforms,
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+ // and Moz2d uses B8G8R8[AX]8 as if it was _UINT32.
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+ // See bug 1269654
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+ if (format == SurfaceFormat::B8G8R8X8) {
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+ return CAIRO_FORMAT_RGB24;
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+ } else if (format != SurfaceFormat::B8G8R8A8) {
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+ gfxCriticalError() << "Unknown image format " << (int)format;
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+ }
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return CAIRO_FORMAT_ARGB32;
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}
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}
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@@ -177,7 +184,11 @@ static inline cairo_content_t GfxFormatToCairoContent(
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case SurfaceFormat::A8:
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return CAIRO_CONTENT_ALPHA;
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default:
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- gfxCriticalError() << "Unknown image content format " << (int)format;
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+ if (format == SurfaceFormat::B8G8R8X8) {
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+ return CAIRO_CONTENT_COLOR;
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+ } else if (format != SurfaceFormat::B8G8R8A8) {
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+ gfxCriticalError() << "Unknown image content format " << (int)format;
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+ }
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return CAIRO_CONTENT_COLOR_ALPHA;
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}
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}
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