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#include <SharedGraphics/GraphicsBitmap.h>
#include <SharedGraphics/PNGLoader.h>
#include <AK/MappedFile.h>
#include <sys/mman.h>
#include <unistd.h>
#include <fcntl.h>
#include <errno.h>
#include <stdio.h>
Retained<GraphicsBitmap> GraphicsBitmap::create(Format format, const Size& size)
{
return adopt(*new GraphicsBitmap(format, size));
}
GraphicsBitmap::GraphicsBitmap(Format format, const Size& size)
: m_size(size)
, m_pitch(round_up_to_power_of_two(size.width() * sizeof(RGBA32), 16))
, m_format(format)
{
if (format == Format::Indexed8)
m_palette = new RGBA32[256];
m_data = (RGBA32*)mmap(nullptr, size_in_bytes(), PROT_READ | PROT_WRITE, MAP_ANONYMOUS | MAP_PRIVATE, 0, 0);
ASSERT(m_data && m_data != (void*)-1);
m_needs_munmap = true;
set_mmap_name(String::format("GraphicsBitmap [%dx%d]", width(), height()).characters());
}
Retained<GraphicsBitmap> GraphicsBitmap::create_wrapper(Format format, const Size& size, RGBA32* data)
{
return adopt(*new GraphicsBitmap(format, size, data));
}
RetainPtr<GraphicsBitmap> GraphicsBitmap::load_from_file(const String& path)
{
return load_png(path);
}
RetainPtr<GraphicsBitmap> GraphicsBitmap::load_from_file(Format format, const String& path, const Size& size)
{
MappedFile mapped_file(path);
if (!mapped_file.is_valid())
return nullptr;
return adopt(*new GraphicsBitmap(format, size, move(mapped_file)));
}
GraphicsBitmap::GraphicsBitmap(Format format, const Size& size, RGBA32* data)
: m_size(size)
, m_data(data)
, m_pitch(round_up_to_power_of_two(size.width() * sizeof(RGBA32), 16))
, m_format(format)
{
ASSERT(format != Format::Indexed8);
}
GraphicsBitmap::GraphicsBitmap(Format format, const Size& size, MappedFile&& mapped_file)
: m_size(size)
, m_data((RGBA32*)mapped_file.pointer())
, m_pitch(round_up_to_power_of_two(size.width() * sizeof(RGBA32), 16))
, m_format(format)
, m_mapped_file(move(mapped_file))
{
ASSERT(format != Format::Indexed8);
}
Retained<GraphicsBitmap> GraphicsBitmap::create_with_shared_buffer(Format format, Retained<SharedBuffer>&& shared_buffer, const Size& size)
{
return adopt(*new GraphicsBitmap(format, move(shared_buffer), size));
}
GraphicsBitmap::GraphicsBitmap(Format format, Retained<SharedBuffer>&& shared_buffer, const Size& size)
: m_size(size)
, m_data((RGBA32*)shared_buffer->data())
, m_pitch(round_up_to_power_of_two(size.width() * sizeof(RGBA32), 16))
, m_format(format)
, m_shared_buffer(move(shared_buffer))
{
ASSERT(format != Format::Indexed8);
}
GraphicsBitmap::~GraphicsBitmap()
{
if (m_needs_munmap) {
int rc = munmap(m_data, size_in_bytes());
ASSERT(rc == 0);
}
m_data = nullptr;
delete [] m_palette;
}
void GraphicsBitmap::set_mmap_name(const String& name)
{
ASSERT(m_needs_munmap);
::set_mmap_name(m_data, size_in_bytes(), name.characters());
}
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