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LibGfx: Remove ImageDecoderPlugin::bitmap() in favor of frame(index)

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To encourage proper support for multi-frame images throughout the
system, get rid of the single-frame convenience bitmap() API.
This commit is contained in:
Andreas Kling 2021-11-18 13:47:29 +01:00
parent 750f1d580a
commit 2b866e3c9b
22 changed files with 105 additions and 155 deletions
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38
Userland/Libraries/LibGfx/ICOLoader.cpp
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@ -263,7 +263,7 @@ static bool load_ico_bitmap(ICOLoadingContext& context, Optional<size_t> index)
PNGImageDecoderPlugin png_decoder(context.data + desc.offset, desc.size);
if (png_decoder.sniff()) {
desc.bitmap = png_decoder.bitmap();
desc.bitmap = png_decoder.frame(0).image;
if (!desc.bitmap) {
dbgln_if(ICO_DEBUG, "load_ico_bitmap: failed to load PNG encoded image index: {}", real_index);
return false;
@ -304,25 +304,6 @@ IntSize ICOImageDecoderPlugin::size()
return { m_context->images[m_context->largest_index].width, m_context->images[m_context->largest_index].height };
}
RefPtr<Gfx::Bitmap> ICOImageDecoderPlugin::bitmap()
{
if (m_context->state == ICOLoadingContext::State::Error)
return nullptr;
if (m_context->state < ICOLoadingContext::State::BitmapDecoded) {
// NOTE: This forces the chunk decoding to happen.
bool success = load_ico_bitmap(*m_context, {});
if (!success) {
m_context->state = ICOLoadingContext::State::Error;
return nullptr;
}
m_context->state = ICOLoadingContext::State::BitmapDecoded;
}
VERIFY(m_context->images[m_context->largest_index].bitmap);
return m_context->images[m_context->largest_index].bitmap;
}
void ICOImageDecoderPlugin::set_volatile()
{
if (m_context->images[0].bitmap)
@ -361,7 +342,22 @@ ImageFrameDescriptor ICOImageDecoderPlugin::frame(size_t i)
{
if (i > 0)
return {};
return { bitmap(), 0 };
if (m_context->state == ICOLoadingContext::State::Error)
return {};
if (m_context->state < ICOLoadingContext::State::BitmapDecoded) {
// NOTE: This forces the chunk decoding to happen.
bool success = load_ico_bitmap(*m_context, {});
if (!success) {
m_context->state = ICOLoadingContext::State::Error;
return {};
}
m_context->state = ICOLoadingContext::State::BitmapDecoded;
}
VERIFY(m_context->images[m_context->largest_index].bitmap);
return { m_context->images[m_context->largest_index].bitmap, 0 };
}
}