diff options
Diffstat (limited to 'SharedGraphics/PNGLoader.cpp')
| -rw-r--r-- | SharedGraphics/PNGLoader.cpp | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/SharedGraphics/PNGLoader.cpp b/SharedGraphics/PNGLoader.cpp index f248571cfb..97d2c62983 100644 --- a/SharedGraphics/PNGLoader.cpp +++ b/SharedGraphics/PNGLoader.cpp @@ -9,6 +9,8 @@ #include <SharedGraphics/puff.c> #include <serenity.h> +//#define PNG_STOPWATCH_DEBUG + struct PNG_IHDR { NetworkOrdered<dword> width; NetworkOrdered<dword> height; @@ -246,7 +248,9 @@ template<bool has_alpha, byte filter_type> [[gnu::noinline]] static void unfilter(PNGLoadingContext& context) { { +#ifdef PNG_STOPWATCH_DEBUG Stopwatch sw("load_png_impl: unfilter: unpack"); +#endif // First unpack the scanlines to RGBA: switch (context.color_type) { case 2: @@ -275,7 +279,9 @@ template<bool has_alpha, byte filter_type> auto dummy_scanline = ByteBuffer::create_zeroed(context.width * sizeof(RGBA32)); +#ifdef PNG_STOPWATCH_DEBUG Stopwatch sw("load_png_impl: unfilter: process"); +#endif for (int y = 0; y < context.height; ++y) { auto filter = context.scanlines[y].filter; if (filter == 0) { @@ -318,7 +324,9 @@ template<bool has_alpha, byte filter_type> static RetainPtr<GraphicsBitmap> load_png_impl(const byte* data, int data_size) { +#ifdef PNG_STOPWATCH_DEBUG Stopwatch sw("load_png_impl: total"); +#endif const byte* data_ptr = data; int data_remaining = data_size; @@ -336,7 +344,9 @@ static RetainPtr<GraphicsBitmap> load_png_impl(const byte* data, int data_size) data_remaining -= sizeof(png_header); { +#ifdef PNG_STOPWATCH_DEBUG Stopwatch sw("load_png_impl: read chunks"); +#endif Streamer streamer(data_ptr, data_remaining); while (!streamer.at_end()) { if (!process_chunk(streamer, context)) { @@ -346,7 +356,9 @@ static RetainPtr<GraphicsBitmap> load_png_impl(const byte* data, int data_size) } { +#ifdef PNG_STOPWATCH_DEBUG Stopwatch sw("load_png_impl: uncompress"); +#endif unsigned long srclen = context.compressed_data.size() - 6; unsigned long destlen = context.decompression_buffer_size; int ret = puff(context.decompression_buffer, &destlen, context.compressed_data.data() + 2, &srclen); @@ -356,7 +368,9 @@ static RetainPtr<GraphicsBitmap> load_png_impl(const byte* data, int data_size) } { +#ifdef PNG_STOPWATCH_DEBUG Stopwatch sw("load_png_impl: extract scanlines"); +#endif context.scanlines.ensure_capacity(context.height); Streamer streamer(context.decompression_buffer, context.decompression_buffer_size); for (int y = 0; y < context.height; ++y) { @@ -372,7 +386,9 @@ static RetainPtr<GraphicsBitmap> load_png_impl(const byte* data, int data_size) } { +#ifdef PNG_STOPWATCH_DEBUG Stopwatch sw("load_png_impl: create bitmap"); +#endif context.bitmap = GraphicsBitmap::create(context.has_alpha() ? GraphicsBitmap::Format::RGBA32 : GraphicsBitmap::Format::RGB32, { context.width, context.height }); } |