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SharedGraphics: Rework GraphicsBitmap::create_kernel_only() into create().

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And just use mmap() to allocate the pixels.
This commit is contained in:
Andreas Kling 2019-02-16 12:22:00 +01:00
parent 4ea28bf0a5
commit 09aaa41e62
Notes: sideshowbarker 2024-07-19 15:41:59 +09:00
3 changed files with 19 additions and 24 deletions
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33
SharedGraphics/GraphicsBitmap.cpp
View file

@ -14,8 +14,7 @@
#include <stdio.h>
#endif
#ifdef KERNEL
RetainPtr<GraphicsBitmap> GraphicsBitmap::create_kernel_only(const Size& size)
RetainPtr<GraphicsBitmap> GraphicsBitmap::create(const Size& size)
{
return adopt(*new GraphicsBitmap(size));
}
@ -24,16 +23,19 @@ GraphicsBitmap::GraphicsBitmap(const Size& size)
: m_size(size)
, m_pitch(size.width() * sizeof(RGBA32))
{
InterruptDisabler disabler;
size_t size_in_bytes = size.width() * size.height() * sizeof(RGBA32);
auto vmo = VMObject::create_anonymous(size_in_bytes);
auto& server = WSMessageLoop::the().server_process();
m_server_region = server.allocate_region_with_vmo(LinearAddress(), size_in_bytes, move(vmo), 0, "GraphicsBitmap (server)", true, false);
m_server_region->set_shared(true);
m_server_region->set_is_bitmap(true);
m_data = (RGBA32*)m_server_region->laddr().as_ptr();
}
#ifdef KERNEL
Syscall::SC_mmap_params params;
memset(&params, 0, sizeof(params));
params.fd = 0;
params.prot = PROT_READ | PROT_WRITE;
params.flags = MAP_ANONYMOUS | MAP_PRIVATE;
params.size = size.area() * sizeof(RGBA32);
params.offset = 0;
m_data = (RGBA32*)current->sys$mmap(&params);
ASSERT(m_data && m_data != (void*)-1);
m_mmaped = true;
#endif
}
RetainPtr<GraphicsBitmap> GraphicsBitmap::create_wrapper(const Size& size, RGBA32* data)
{
@ -115,15 +117,14 @@ GraphicsBitmap::GraphicsBitmap(int shared_buffer_id, const Size& size, RGBA32* d
GraphicsBitmap::~GraphicsBitmap()
{
#ifdef KERNEL
if (m_server_region)
WSMessageLoop::the().server_process().deallocate_region(*m_server_region);
#else
if (m_mmaped) {
#ifdef KERNEL
int rc = current->sys$munmap(m_data, m_size.area() * 4);
#else
int rc = munmap(m_data, m_size.area() * 4);
#endif
ASSERT(rc == 0);
}
#endif
if (m_shared_buffer_id != -1) {
int rc;
#ifdef KERNEL

8
SharedGraphics/GraphicsBitmap.h
View file

@ -11,9 +11,7 @@ class Region;
class GraphicsBitmap : public Retainable<GraphicsBitmap> {
public:
#ifdef KERNEL
static RetainPtr<GraphicsBitmap> create_kernel_only(const Size&);
#endif
static RetainPtr<GraphicsBitmap> create(const Size&);
static RetainPtr<GraphicsBitmap> create_wrapper(const Size&, RGBA32*);
static RetainPtr<GraphicsBitmap> load_from_file(const String& path, const Size&);
static RetainPtr<GraphicsBitmap> create_with_shared_buffer(int shared_buffer_id, const Size&, RGBA32* buffer = nullptr);
@ -44,11 +42,7 @@ private:
Size m_size;
RGBA32* m_data { nullptr };
size_t m_pitch { 0 };
#ifdef USERLAND
bool m_mmaped { false };
#endif
int m_shared_buffer_id { -1 };
#ifdef KERNEL

2
WindowServer/WSWindow.cpp
View file

@ -45,7 +45,7 @@ void WSWindow::set_rect(const Rect& rect)
m_rect = rect;
if (!m_backing || old_rect.size() != rect.size()) {
if (m_menu)
m_backing = GraphicsBitmap::create_kernel_only(m_rect.size());
m_backing = GraphicsBitmap::create(m_rect.size());
else if (client)
m_backing = client->create_bitmap(m_rect.size());