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LibGfx: Change second argument of BMPWriter::dump() to Options struct

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This makes it more economical to add more options here, and makes it
possible to use similar API surface for the other image writers.

(It looks like nothing currently uses this optional parameter, but
having a way to pass options to image writers seems like something
we generally want.)
This commit is contained in:
Nico Weber 2023-03-12 10:24:30 -04:00 • committed by Jelle Raaijmakers
parent 74891ab656
commit 01387eb72b
2 changed files with 17 additions and 11 deletions
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13
Userland/Libraries/LibGfx/BMPWriter.cpp
View file

@ -78,17 +78,18 @@ ByteBuffer BMPWriter::compress_pixel_data(ByteBuffer const& pixel_data, BMPWrite
VERIFY_NOT_REACHED();
}
ByteBuffer BMPWriter::dump(RefPtr<Bitmap const> bitmap, DibHeader dib_header)
ByteBuffer BMPWriter::dump(RefPtr<Bitmap const> bitmap, Options options)
{
Options::DibHeader dib_header = options.dib_header;
switch (dib_header) {
case DibHeader::Info:
case Options::DibHeader::Info:
m_compression = Compression::BI_RGB;
m_bytes_per_pixel = 3;
m_include_alpha_channel = false;
break;
case DibHeader::V3:
case DibHeader::V4:
case Options::DibHeader::V3:
case Options::DibHeader::V4:
m_compression = Compression::BI_BITFIELDS;
m_bytes_per_pixel = 4;
m_include_alpha_channel = true;
@ -128,14 +129,14 @@ ByteBuffer BMPWriter::dump(RefPtr<Bitmap const> bitmap, DibHeader dib_header)
streamer.write_u32(0); // TotalColors
streamer.write_u32(0); // ImportantColors
if (dib_header == DibHeader::V3 || dib_header == DibHeader::V4) {
if (dib_header == Options::DibHeader::V3 || dib_header == Options::DibHeader::V4) {
streamer.write_u32(0x00ff0000); // Red bitmask
streamer.write_u32(0x0000ff00); // Green bitmask
streamer.write_u32(0x000000ff); // Blue bitmask
streamer.write_u32(0xff000000); // Alpha bitmask
}
if (dib_header == DibHeader::V4) {
if (dib_header == Options::DibHeader::V4) {
streamer.write_u32(0); // Colorspace
for (int i = 0; i < 12; i++) {