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https://github.com/zoriya/ComSquare.git
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Clément Le Bihan
79 lines
2.4 KiB
C++
79 lines
2.4 KiB
C++
//
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// Created by cbihan on 1/27/20.
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//
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#ifndef COMSQUARE_PPU_UTILS_HPP
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#define COMSQUARE_PPU_UTILS_HPP
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#include <stdint-gcc.h>
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#include <cstddef>
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#include <array>
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#include "Models/Vector2.hpp"
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namespace ComSquare::PPU::Utils
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{
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//! @brief Transform SNES color code BGR to uint32_t RGB
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uint32_t getRealColor(uint16_t color);
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//! @brief Used to parse easily VRAM Tile information
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union TileMapData {
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struct {
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//! @brief Tile X offset
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uint16_t posX: 4;
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//! @brief Tile Y offset
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uint16_t posY: 6;
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//! @brief Palette number used by the Tile
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uint16_t palette: 3;
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//! @brief True if the Tile has priority
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uint16_t tilePriority: 1;
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//! @brief True if the Tile need to be horizontally flipped
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uint16_t horizontalFlip: 1;
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//! @brief True if the Tile need to be vertically flipped
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uint16_t verticalFlip: 1;
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};
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uint16_t raw = 0;
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};
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//! @brief Struct to save all specific variables needed for the registers (prev values for example)
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struct PpuState {
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//! @brief Used by by all eight BGnxOFS registers (0x210D - 0x2114)
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uint8_t hvSharedScrollPrevValue;
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//! @brief Shared by the four BGnHOFS registers
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uint8_t hScrollPrevValue;
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};
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template <std::size_t DEST_SIZE_Y, std::size_t DEST_SIZE_X, std::size_t SRC_SIZE_Y, std::size_t SRC_SIZE_X>
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void merge2DArray(std::array<std::array<uint32_t, DEST_SIZE_X>, DEST_SIZE_Y> &bufferDest,
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const std::array<std::array<uint32_t, SRC_SIZE_X>, SRC_SIZE_Y> &bufferSrc,
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const Vector2<int> &offset = {0, 0})
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{
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for (unsigned long i = 0; i < bufferSrc.size(); i++) {
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for (unsigned long j = 0; j < bufferSrc[i].size(); j++) {
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bufferDest[i + offset.y][j + offset.x] = bufferSrc[i][j];
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}
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}
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}
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template <std::size_t SRC_SIZE_Y, std::size_t SRC_SIZE_X>
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void VFlipArray(std::array<std::array<uint32_t, SRC_SIZE_X>, SRC_SIZE_Y> &array,
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const Vector2<int> &size,
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const Vector2<int> &offset = {0, 0})
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{
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for (int i = offset.y; i < offset.y + size.y; i++) {
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std::reverse(array[i].begin() + offset.x, array[i].begin() + offset.x + size.x);
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}
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}
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template <std::size_t SRC_SIZE_Y, std::size_t SRC_SIZE_X>
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void HFlipArray(std::array<std::array<uint32_t, SRC_SIZE_X>, SRC_SIZE_Y> &array,
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const Vector2<int> &size,
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const Vector2<int> &offset = {0, 0})
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{
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std::reverse(array.begin() + offset.x, array.begin() + offset.x + size.x);
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}
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int *get_dump_vram();
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int *get_dump_cgram();
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}
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#endif //COMSQUARE_PPU_UTILS_HPP
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