mirror of
https://github.com/LadybirdBrowser/ladybird.git
synced 2025-01-23 17:52:26 -05:00
f6d2c3ed87
Okay things kinda sorta work. Both Bochs and QEMU now boot into GUI mode. There's a ton of stuff that doesn't make sense and so many things to rework. Still it's quite cool to have made it this far. :^)
112 lines
2.4 KiB
C++
112 lines
2.4 KiB
C++
#include "FrameBuffer.h"
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#include "GraphicsBitmap.h"
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#include <AK/Assertions.h>
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FrameBuffer* s_the;
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void FrameBuffer::initialize()
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{
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s_the = nullptr;
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}
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FrameBuffer& FrameBuffer::the()
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{
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ASSERT(s_the);
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return *s_the;
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}
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FrameBuffer::FrameBuffer(unsigned width, unsigned height)
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: AbstractScreen(width, height)
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{
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ASSERT(!s_the);
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s_the = this;
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#ifdef USE_SDL
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initializeSDL();
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#endif
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}
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FrameBuffer::FrameBuffer(RGBA32* data, unsigned width, unsigned height)
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: AbstractScreen(width, height)
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#ifdef SERENITY
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, m_data(data)
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#endif
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{
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ASSERT(!s_the);
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s_the = this;
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}
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FrameBuffer::~FrameBuffer()
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{
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#ifdef USE_SDL
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SDL_DestroyWindow(m_window);
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m_surface = nullptr;
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m_window = nullptr;
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SDL_Quit();
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#endif
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}
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void FrameBuffer::show()
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{
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}
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#ifdef USE_SDL
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void FrameBuffer::initializeSDL()
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{
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if (m_window)
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return;
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if (SDL_Init(SDL_INIT_VIDEO) < 0) {
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ASSERT_NOT_REACHED();
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}
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m_window = SDL_CreateWindow(
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"FrameBuffer",
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SDL_WINDOWPOS_UNDEFINED,
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SDL_WINDOWPOS_UNDEFINED,
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width(),
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height(),
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SDL_WINDOW_SHOWN);
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ASSERT(m_window);
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m_surface = SDL_GetWindowSurface(m_window);
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ASSERT(m_surface);
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SDL_FillRect(m_surface, nullptr, SDL_MapRGB(m_surface->format, 0xff, 0xff, 0xff));
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SDL_UpdateWindowSurface(m_window);
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}
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#endif
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RGBA32* FrameBuffer::scanline(int y)
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{
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#ifdef USE_SDL
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return reinterpret_cast<RGBA32*>(((byte*)m_surface->pixels) + (y * m_surface->pitch));
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#endif
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#ifdef SERENITY
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unsigned pitch = sizeof(RGBA32) * width();
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return reinterpret_cast<RGBA32*>(((byte*)m_data) + (y * pitch));
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#endif
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}
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void FrameBuffer::blit(const Point& position, GraphicsBitmap& bitmap)
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{
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Rect dst_rect(position, bitmap.size());
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//printf("blit at %d,%d %dx%d\n", dst_rect.x(), dst_rect.y(), dst_rect.width(), dst_rect.height());
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dst_rect.intersect(rect());
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//printf(" -> intersection %d,%d %dx%d\n", dst_rect.x(), dst_rect.y(), dst_rect.width(), dst_rect.height());
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for (int y = 0; y < dst_rect.height(); ++y) {
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auto* framebuffer_scanline = scanline(position.y() + y);
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auto* bitmap_scanline = bitmap.scanline(y);
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memcpy(framebuffer_scanline + dst_rect.x(), bitmap_scanline + (dst_rect.x() - position.x()), dst_rect.width() * 4);
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}
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}
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void FrameBuffer::flush()
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{
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#ifdef USE_SDL
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SDL_UpdateWindowSurface(m_window);
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#endif
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}
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