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Use DMA for GPU

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This commit is contained in:
Jaby
2022-09-11 15:44:45 +02:00
parent 2a97f7fa68
commit 303ffbccc9
8 changed files with 143 additions and 20 deletions
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14
include/PSX/System/IOPorts/GPU_IO.hpp
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@@ -32,7 +32,7 @@ namespace GPU {
enum struct DMADirection {
Off = 0,
Unknown = 1,
Fifo = 1,
CPU2GPU = 2,
GPU2CPU = 3,
};
@@ -50,6 +50,10 @@ namespace GPU {
return ComplexBitMap{(0x02 << 24) | color.raw()};
}
static constexpr GP0 CPU2VRAM_Blitting() {
return ComplexBitMap{(0b101u << 29)};
}
static constexpr GP0 TopLeftPosition(uint16_t x, uint16_t y) {
return ComplexBitMap{static_cast<uint32_t>((y << 16u) | x)};
}
@@ -70,9 +74,17 @@ namespace GPU {
return ComplexBitMap{0};
}
static constexpr GP1 ResetCMDBufer() {
return ComplexBitMap{construct_cmd(0x01, 0)};
}
static constexpr GP1 SetDisplayState(DisplayState state) {
return ComplexBitMap{construct_cmd(0x03, static_cast<uint32_t>(state))};
}
static constexpr GP1 DMADirection(DMADirection dir) {
return ComplexBitMap{construct_cmd(0x04, static_cast<uint32_t>(dir))};
}
};
}