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Kernel/Graphics: Remove unnecessary derived FramebufferDevice classes

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It seems like overly-specific classes were written for no good reason.
Instead of making each adapter to have its own unique FramebufferDevice
class, let's generalize everything to keep implementation more
consistent.
This commit is contained in:
Liav A 2021-05-22 09:51:55 +03:00 • committed by Andreas Kling
parent b8fd845885
commit c1a4dfeffb
17 changed files with 127 additions and 246 deletions
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27
Kernel/Graphics/BochsGraphicsAdapter.cpp
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@ -9,7 +9,6 @@
#include <AK/Singleton.h>
#include <Kernel/Debug.h>
#include <Kernel/Graphics/Bochs.h>
#include <Kernel/Graphics/BochsFramebufferDevice.h>
#include <Kernel/Graphics/BochsGraphicsAdapter.h>
#include <Kernel/Graphics/Console/FramebufferConsole.h>
#include <Kernel/Graphics/GraphicsManagement.h>
@ -63,7 +62,7 @@ UNMAP_AFTER_INIT BochsGraphicsAdapter::BochsGraphicsAdapter(PCI::Address pci_add
UNMAP_AFTER_INIT void BochsGraphicsAdapter::initialize_framebuffer_devices()
{
// FIXME: Find a better way to determine default resolution...
m_framebuffer_device = BochsFramebufferDevice::create(*this, PhysicalAddress(PCI::get_BAR0(pci_address()) & 0xfffffff0), 1024, 768, 1024 * sizeof(u32));
m_framebuffer_device = FramebufferDevice::create(*this, 0, PhysicalAddress(PCI::get_BAR0(pci_address()) & 0xfffffff0), 1024, 768, 1024 * sizeof(u32));
m_framebuffer_device->initialize();
}
@ -77,7 +76,8 @@ GraphicsDevice::Type BochsGraphicsAdapter::type() const
void BochsGraphicsAdapter::set_safe_resolution()
{
VERIFY(m_framebuffer_console);
set_resolution(1024, 768);
auto result = try_to_set_resolution(0, 1024, 768);
VERIFY(result);
}
void BochsGraphicsAdapter::set_resolution_registers(size_t width, size_t height)
@ -97,20 +97,17 @@ void BochsGraphicsAdapter::set_resolution_registers(size_t width, size_t height)
registers->bochs_regs.bank = 0;
}
bool BochsGraphicsAdapter::try_to_set_resolution(size_t width, size_t height)
{
dbgln_if(BXVGA_DEBUG, "BochsGraphicsAdapter resolution test - {}x{}", width, height);
set_resolution_registers(width, height);
return validate_setup_resolution(width, height);
}
bool BochsGraphicsAdapter::set_resolution(size_t width, size_t height)
bool BochsGraphicsAdapter::try_to_set_resolution(size_t output_port_index, size_t width, size_t height)
{
// Note: There's only one output port for this adapter
VERIFY(output_port_index == 0);
VERIFY(m_framebuffer_console);
if (Checked<size_t>::multiplication_would_overflow(width, height, sizeof(u32)))
return false;
if (!try_to_set_resolution(width, height))
set_resolution_registers(width, height);
dbgln_if(BXVGA_DEBUG, "BochsGraphicsAdapter resolution test - {}x{}", width, height);
if (!validate_setup_resolution(width, height))
return false;
dbgln("BochsGraphicsAdapter: resolution set to {}x{}", width, height);
@ -127,12 +124,14 @@ bool BochsGraphicsAdapter::validate_setup_resolution(size_t width, size_t height
return true;
}
void BochsGraphicsAdapter::set_y_offset(size_t y_offset)
bool BochsGraphicsAdapter::set_y_offset(size_t output_port_index, size_t y_offset)
{
VERIFY(output_port_index == 0);
if (m_console_enabled)
return;
return false;
auto registers = map_typed_writable<volatile BochsDisplayMMIORegisters>(m_mmio_registers);
registers->bochs_regs.y_offset = y_offset;
return true;
}
void BochsGraphicsAdapter::enable_consoles()