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Kernel: Respect actual framebuffer pitch

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Instead of winging it with "width * 4", use the actual pitch since it
may be different.

This makes the kernel text console show up in native 1368x768 on my
ThinkPad X250. :^)
This commit is contained in:
Andreas Kling 2022-03-01 17:15:47 +01:00
parent e65ff4b8d1
commit 884ebc42b1
2 changed files with 11 additions and 10 deletions
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20
Kernel/Graphics/Console/GenericFramebufferConsole.cpp
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@ -226,10 +226,10 @@ void GenericFramebufferConsoleImpl::clear(size_t x, size_t y, size_t length)
{
if (x == 0 && length == max_column()) {
// if we need to clear the entire row, just clean it with quick memset :)
auto* offset_in_framebuffer = (u32*)&framebuffer_data()[x * sizeof(u32) * 8 + y * 8 * sizeof(u32) * width()];
auto* offset_in_framebuffer = (u32*)&framebuffer_data()[x * sizeof(u32) * 8 + y * 8 * framebuffer_pitch()];
for (size_t current_x = 0; current_x < 8; current_x++) {
memset(offset_in_framebuffer, 0, width() * sizeof(u32));
offset_in_framebuffer = (u32*)((u8*)offset_in_framebuffer + width() * 4);
memset(offset_in_framebuffer, 0, framebuffer_pitch());
offset_in_framebuffer = (u32*)((u8*)offset_in_framebuffer + framebuffer_pitch());
}
flush(0, 8 * y, 8 * length, 1);
return;
@ -241,10 +241,10 @@ void GenericFramebufferConsoleImpl::clear(size_t x, size_t y, size_t length)
if (y >= max_row())
y = 0;
}
auto* offset_in_framebuffer = (u32*)&framebuffer_data()[x * sizeof(u32) * 8 + y * 8 * sizeof(u32) * width()];
auto* offset_in_framebuffer = (u32*)&framebuffer_data()[x * sizeof(u32) * 8 + y * 8 * framebuffer_pitch()];
for (size_t current_x = 0; current_x < 8; current_x++) {
memset(offset_in_framebuffer, 0, 8 * sizeof(u32));
offset_in_framebuffer = (u32*)((u8*)offset_in_framebuffer + width() * sizeof(u32));
offset_in_framebuffer = (u32*)((u8*)offset_in_framebuffer + framebuffer_pitch());
}
flush(8 * x, 8 * y, 8, 8);
}
@ -252,17 +252,17 @@ void GenericFramebufferConsoleImpl::clear(size_t x, size_t y, size_t length)
void GenericFramebufferConsoleImpl::clear_glyph(size_t x, size_t y)
{
auto* offset_in_framebuffer = (u32*)&framebuffer_data()[x * sizeof(u32) * 8 + y * 8 * sizeof(u32) * width()];
auto* offset_in_framebuffer = (u32*)&framebuffer_data()[x * sizeof(u32) * 8 + y * 8 * framebuffer_pitch()];
for (size_t current_x = 0; current_x < 8; current_x++) {
memset(offset_in_framebuffer, 0, 8 * sizeof(u32));
offset_in_framebuffer = (u32*)((u8*)offset_in_framebuffer + width() * sizeof(u32));
offset_in_framebuffer = (u32*)((u8*)offset_in_framebuffer + framebuffer_pitch());
}
flush(8 * x, 8 * y, 8, 8);
}
void GenericFramebufferConsoleImpl::enable()
{
memset(framebuffer_data(), 0, height() * width() * sizeof(u32));
memset(framebuffer_data(), 0, height() * framebuffer_pitch());
m_enabled.store(true);
}
@ -291,7 +291,7 @@ void GenericFramebufferConsoleImpl::write(size_t x, size_t y, char ch, Color bac
return;
}
clear_glyph(x, y);
auto* offset_in_framebuffer = (u32*)&framebuffer_data()[x * sizeof(u32) * 8 + y * 8 * sizeof(u32) * width()];
auto* offset_in_framebuffer = (u32*)&framebuffer_data()[x * sizeof(u32) * 8 + y * 8 * framebuffer_pitch()];
int current_bitpixels = 0;
int current_bitpixel = 0;
auto bitmap = font8x8_basic[(int)ch];
@ -307,7 +307,7 @@ void GenericFramebufferConsoleImpl::write(size_t x, size_t y, char ch, Color bac
offset_in_framebuffer[current_bitpixel] = background_color;
}
}
offset_in_framebuffer = (u32*)((u8*)offset_in_framebuffer + width() * 4);
offset_in_framebuffer = (u32*)((u8*)offset_in_framebuffer + framebuffer_pitch());
}
flush(8 * x, 8 * y, 8, 8);
m_x = x + 1;