75 lines
3.3 KiB
C++
75 lines
3.3 KiB
C++
#ifndef __JABYENGINE_GPU_IO_HPP__
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#define __JABYENGINE_GPU_IO_HPP__
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#include "IOPort.hpp"
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namespace GPU {
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namespace Port {
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enum struct SemiTransparency {
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B_Half_add_F_Half = 0,
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B_add_F = 1,
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B_sub_F = 2,
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B_add_F_Quarter = 3,
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};
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enum struct TexturePageColor {
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_4bit = 0,
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_8bit = 1,
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_15bit = 2,
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};
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enum struct HorizontalResolution {
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_256 = 0,
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_320 = 1,
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_512 = 2,
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_640 = 3,
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};
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enum struct VerticalResolution {
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_240 = 0,
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_480 = 1
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};
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enum struct DMADirection {
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Off = 0,
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Unknown = 1,
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CPU2GPU = 2,
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GPU2CPU = 3,
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};
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struct __no_align Command : public ComplexBitMap<uint32_t> {
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};
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struct __no_align GPUStatusRegister : public ComplexBitMap<uint32_t> {
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static constexpr auto DrawingOddLinesInterlaced = Bit<uint32_t>(31);
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static constexpr auto DMADirectionValue = BitRange<DMADirection>::from_to(29, 30);
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static constexpr auto DMAReady = Bit<uint32_t>(28);
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static constexpr auto VRAMtoCPUtransferReay = Bit<uint32_t>(27);
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static constexpr auto GP0ReadyForCMD = Bit<uint32_t>(26);
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static constexpr auto FifoNotFull = Bit<uint32_t>(25); // Only for Fifo
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static constexpr auto InterruptRequest = Bit<uint32_t>(24);
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static constexpr auto DisplayDisabled = Bit<uint32_t>(23);
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static constexpr auto VerticalInterlaceOn = Bit<uint32_t>(22);
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static constexpr auto DisplayAreaColorDepth24bit = Bit<uint32_t>(21);
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static constexpr auto VideoModePal = Bit<uint32_t>(20);
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static constexpr auto VerticalResolutionValue = BitRange<VerticalResolution>::from_to(19, 19);
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static constexpr auto HorizontalResolutionValue = BitRange<HorizontalResolution>::from_to(17, 18);
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static constexpr auto HorizontalResolution368 = Bit<uint32_t>(16);
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static constexpr auto TexturesDisabled = Bit<uint32_t>(15);
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static constexpr auto NotDrawingMaskedPixels = Bit<uint32_t>(12);
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static constexpr auto MaskBitSetDuringDrawEnabled = Bit<uint32_t>(11);
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static constexpr auto DrawingToDisplayAreadAllowed = Bit<uint32_t>(10);
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static constexpr auto DitherEnabled = Bit<uint32_t>(9);
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static constexpr auto TexturePageColorValue = BitRange<TexturePageColor>::from_to(7, 8);
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static constexpr auto SemiTransparencyValue = BitRange<SemiTransparency>::from_to(5, 6);
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static constexpr auto TexturePageY = BitRange<uint32_t>::from_to(4, 4); // N*256
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static constexpr auto TexturePageX = BitRange<uint32_t>::from_to(0, 3); // N*64
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static constexpr auto VerticalResolution480 = Bit<uint32_t>(19);
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static constexpr auto TexturePageY256 = Bit<uint32_t>(4);
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};
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__declare_io_port_global_const(GPUStatusRegister, GPUSTAT, 0x1F801814);
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}
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}
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#endif //!__JABYENGINE_GPU_IO_HPP__
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