WindowServer: Merge WSFrameBuffer into WSScreen.

Kernel/Makefile

@@ -57,7 +57,6 @@ WINDOWSERVER_OBJS = \
     ../WindowServer/WSEventLoop.o \
     ../WindowServer/WSWindow.o \
     ../WindowServer/WSWindowManager.o \
-    ../WindowServer/WSFrameBuffer.o \
     ../WindowServer/WSScreen.o \
     ../WindowServer/main.o
 

Kernel/ProcessGUI.cpp

@@ -3,7 +3,6 @@
 #include <LibC/errno_numbers.h>
 #include <Widgets/Font.h>
 #include <WindowServer/WSScreen.h>
-#include <WindowServer/WSFrameBuffer.h>
 #include <WindowServer/WSEventLoop.h>
 #include <WindowServer/WSWindow.h>
 #include <WindowServer/WSWindowManager.h>
@@ -11,7 +10,6 @@
 void Process::initialize_gui_statics()
 {
     Font::initialize();
-    WSFrameBuffer::initialize();
     WSEventLoop::initialize();
     WSWindowManager::initialize();
     WSScreen::initialize();

WindowServer/WSFrameBuffer.cpp

@@ -1,35 +0,0 @@
-#include "WSFrameBuffer.h"
-#include <Widgets/GraphicsBitmap.h>
-#include <AK/Assertions.h>
-
-WSFrameBuffer* s_the;
-
-void WSFrameBuffer::initialize()
-{
-    s_the = nullptr;
-}
-
-WSFrameBuffer& WSFrameBuffer::the()
-{
-    ASSERT(s_the);
-    return *s_the;
-}
-
-WSFrameBuffer::WSFrameBuffer(RGBA32* data, unsigned width, unsigned height)
-    : WSScreen(width, height)
-    , m_data(data)
-{
-    ASSERT(!s_the);
-    s_the = this;
-}
-
-
-WSFrameBuffer::~WSFrameBuffer()
-{
-}
-
-RGBA32* WSFrameBuffer::scanline(int y)
-{
-    unsigned pitch = sizeof(RGBA32) * width();
-    return reinterpret_cast<RGBA32*>(((byte*)m_data) + (y * pitch));
-}

WindowServer/WSFrameBuffer.h

@@ -1,22 +0,0 @@
-#pragma once
-
-#include "WSScreen.h"
-#include <Widgets/Color.h>
-
-class GraphicsBitmap;
-
-class WSFrameBuffer final : public WSScreen {
-public:
-    WSFrameBuffer(RGBA32*, unsigned width, unsigned height);
-    ~WSFrameBuffer();
-
-    static WSFrameBuffer& the();
-
-    RGBA32* scanline(int y);
-
-    static void initialize();
-
-private:
-    RGBA32* m_data { nullptr };
-};
-

WindowServer/WSScreen.cpp

@@ -17,8 +17,9 @@ WSScreen& WSScreen::the()
     return *s_the;
 }
 
-WSScreen::WSScreen(unsigned width, unsigned height)
-    : m_width(width)
+WSScreen::WSScreen(RGBA32* framebuffer, unsigned width, unsigned height)
+    : m_framebuffer(framebuffer)
+    , m_width(width)
     , m_height(height)
 {
     ASSERT(!s_the);

WindowServer/WSScreen.h

@@ -2,14 +2,17 @@
 
 #include <Widgets/Rect.h>
 #include <Widgets/Size.h>
+#include <Widgets/Color.h>
 #include <Kernel/Keyboard.h>
 
 class WSScreen {
 public:
+    WSScreen(RGBA32*, unsigned width, unsigned height);
     ~WSScreen();
 
     int width() const { return m_width; }
     int height() const { return m_height; }
+    RGBA32* scanline(int y);
 
     static WSScreen& the();
 
@@ -29,6 +32,8 @@ protected:
     WSScreen(unsigned width, unsigned height);
 
 private:
+    RGBA32* m_framebuffer { nullptr };
+
     int m_width { 0 };
     int m_height { 0 };
 
@@ -37,3 +42,8 @@ private:
     bool m_right_mouse_button_pressed { false };
 };
 
+inline RGBA32* WSScreen::scanline(int y)
+{
+    size_t pitch = sizeof(RGBA32) * width();
+    return reinterpret_cast<RGBA32*>(((byte*)m_framebuffer) + (y * pitch));
+}

WindowServer/WSWindowManager.cpp

@@ -2,7 +2,6 @@
 #include "WSWindow.h"
 #include "WSScreen.h"
 #include "WSEventLoop.h"
-#include "WSFrameBuffer.h"
 #include "Process.h"
 #include "MemoryManager.h"
 #include <Widgets/Painter.h>
@@ -107,15 +106,15 @@ static const char* cursor_bitmap_outer_ascii = {
 };
 
 WSWindowManager::WSWindowManager()
-    : m_framebuffer(WSFrameBuffer::the())
-    , m_screen_rect(m_framebuffer.rect())
+    : m_screen(WSScreen::the())
+    , m_screen_rect(m_screen.rect())
 {
 #ifndef DEBUG_COUNTERS
     (void)m_recompose_count;
     (void)m_flush_count;
 #endif
     auto size = m_screen_rect.size();
-    m_front_bitmap = GraphicsBitmap::create_wrapper(size, m_framebuffer.scanline(0));
+    m_front_bitmap = GraphicsBitmap::create_wrapper(size, m_screen.scanline(0));
     auto* region = current->allocate_region(LinearAddress(), size.width() * size.height() * sizeof(RGBA32), "BackBitmap", true, true, true);
     m_back_bitmap = GraphicsBitmap::create_wrapper(m_screen_rect.size(), (RGBA32*)region->linearAddress.get());
 
@@ -327,12 +326,12 @@ void WSWindowManager::draw_cursor()
 {
     ASSERT_INTERRUPTS_ENABLED();
     LOCKER(m_lock);
-    auto cursor_location = m_framebuffer.cursor_location();
+    auto cursor_location = m_screen.cursor_location();
     Rect cursor_rect { cursor_location.x(), cursor_location.y(), (int)m_cursor_bitmap_inner->width(), (int)m_cursor_bitmap_inner->height() };
     flush(m_last_cursor_rect.united(cursor_rect));
     Color inner_color = Color::White;
     Color outer_color = Color::Black;
-    if (m_framebuffer.left_mouse_button_pressed())
+    if (m_screen.left_mouse_button_pressed())
         swap(inner_color, outer_color);
     m_front_painter->draw_bitmap(cursor_location, *m_cursor_bitmap_inner, inner_color);
     m_front_painter->draw_bitmap(cursor_location, *m_cursor_bitmap_outer, outer_color);

WindowServer/WSWindowManager.h

@@ -9,7 +9,7 @@
 #include <AK/Lock.h>
 #include "WSEventReceiver.h"
 
-class WSFrameBuffer;
+class WSScreen;
 class MouseEvent;
 class PaintEvent;
 class WSWindow;
@@ -53,7 +53,7 @@ private:
     void compose();
     void paint_window_frame(WSWindow&);
 
-    WSFrameBuffer& m_framebuffer;
+    WSScreen& m_screen;
     Rect m_screen_rect;
 
     Color m_active_window_border_color;

WindowServer/main.cpp

@@ -1,6 +1,6 @@
 #include "Process.h"
 #include <Widgets/Font.h>
-#include <WindowServer/WSFrameBuffer.h>
+#include <WindowServer/WSScreen.h>
 #include <WindowServer/WSWindowManager.h>
 #include <WindowServer/WSEventLoop.h>
 #include <WindowServer/WSWindow.h>
@@ -14,7 +14,7 @@ void WindowServer_main()
 
     dbgprintf("Screen is %ux%ux%ubpp\n", info.width, info.height, info.bpp);
 
-    WSFrameBuffer framebuffer((dword*)info.framebuffer, info.width, info.height);
+    WSScreen screen((dword*)info.framebuffer, info.width, info.height);
 
     WSWindowManager::the();