87 lines
3.4 KiB
C++
87 lines
3.4 KiB
C++
#ifndef __JABYENGINE_GPU_INTERNAL_HPP__
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#define __JABYENGINE_GPU_INTERNAL_HPP__
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#include <PSX/GPU/gpu.hpp>
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#include <PSX/System/IOPorts/dma_io.hpp>
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#include <PSX/System/IOPorts/gpu_io.hpp>
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namespace JabyEngine {
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namespace GPU {
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namespace internal {
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struct Screen {
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static void configurate() {
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static constexpr uint16_t FirstVisiblePixelH = 0x260;
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#ifdef JABYENGINE_PAL
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static constexpr uint16_t FirstVisiblePixelV = 0xA3;
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GPU_IO::GP1 = GPU_IO::Command::DisplayMode(GPU_IO::DisplayMode_t::PAL());
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GPU::Screen::set_offset(0, 0);
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#else
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static constexpr uint16_t FirstVisiblePixelV = 0x88;
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GPU_IO::GP1 = GPU_IO::Command::DisplayMode(GPU_IO::DisplayMode_t::NTSC());
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GPU::Screen::set_offset(0, 5); //< Random values
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#endif
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}
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static void exchange_buffer_and_display();
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};
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static void set_draw_area(uint16_t x, uint16_t y) {
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GPU_IO::GP0 = GPU_IO::Command::DrawAreaTopLeft(x, y);
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GPU_IO::GP0 = GPU_IO::Command::DrawAreaBottomRight((x + Display::Width), (y + Display::Height));
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}
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static void quick_fill_fast(const Color24& color, const PositionU16& pos, const SizeU16& size) {
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GPU_IO::GP0 = GPU_IO::Command::QuickFill(color);
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GPU_IO::GP0 = GPU_IO::Command::TopLeftPosition(pos.x, pos.y);
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GPU_IO::GP0 = GPU_IO::Command::WidthHeight(size.width, size.height);
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}
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static void reset_cmd_buffer() {
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GPU_IO::GP1 = GPU_IO::Command::ResetCMDBufer();
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}
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static void wait_ready_for_CMD() {
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while(!GPU_IO::GPUSTAT.is_set(GPU_IO::GPUSTAT_t::GP0ReadyForCMD));
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}
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namespace DMA {
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static void wait() {
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::JabyEngine::DMA_IO::GPU.wait();
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}
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static void end() {
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reset_cmd_buffer();
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}
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namespace Receive {
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static void prepare() {
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GPU_IO::GP1 = GPU_IO::Command::DMADirection(GPU_IO::DMADirection::CPU2GPU);
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reset_cmd_buffer();
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}
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static void set_src(uintptr_t adr) {
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DMA_IO::GPU.set_adr(adr);
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}
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static void set_dst(const PositionU16& position, const SizeU16& size) {
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wait_ready_for_CMD();
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GPU_IO::GP0 = GPU_IO::Command::CPU2VRAM_Blitting();
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GPU_IO::GP0 = GPU_IO::Command::TopLeftPosition(position.x, position.y);
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GPU_IO::GP0 = GPU_IO::Command::WidthHeight(size.width, size.height);
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}
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static void start(uint16_t blockCount, uint16_t wordsPerBlock = 0x10) {
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typedef DMA_IO::BCR_t::SyncMode1 SyncMode1;
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DMA_IO::GPU.block_ctrl = DMA_IO::BCR_t::from(SyncMode1::BlockSize.with(wordsPerBlock), SyncMode1::BlockAmount.with(blockCount));
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DMA_IO::GPU.channel_ctrl = DMA_IO::CHCHR_t::StartGPUReceive();
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}
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}
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}
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}
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}
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}
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#endif //!__JABYENGINE_GPU_INTERNAL_HPP__
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