16 lines
578 B
C++
16 lines
578 B
C++
#include "framebuffer/framebuffer.h"
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#include <mammoth/memory_region.h>
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Framebuffer::Framebuffer(const FramebufferInfo& info) : fb_info_(info) {
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uint64_t buff_size_bytes = fb_info_.height() * fb_info_.pitch();
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MappedMemoryRegion region = MappedMemoryRegion::DirectPhysical(
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fb_info_.address_phys(), buff_size_bytes);
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fb_ = reinterpret_cast<uint32_t*>(region.vaddr());
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}
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void Framebuffer::DrawPixel(uint32_t row, uint32_t col, uint32_t pixel) {
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// Div by 4 because pitch is in bytes and fb_ is a 32bit array.
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fb_[(row * fb_info_.pitch() / 4) + col] = pixel;
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}
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