#include <ppu.h>

Public Member Functions
	Ppu (Memory &memory)

void	Init ()

void	Reset ()

void	SaveState (std::ostream &stream)

void	LoadState (std::istream &stream)

void	HandleFrameStart ()

void	StartLine (int line)

void	CatchUp (int h_pos)

void	RunLine (int line)

void	HandlePixel (int x, int y)

void	LatchHV ()

int	GetPixel (int x, int y, bool sub, int r, int g, int *b)

void	EvaluateSprites (int line)

void	CalculateMode7Starts (int y)

bool	GetWindowState (int layer, int x)

bool	CheckOverscan ()

void	HandleVblank ()

void	HandleOPT (int layer, int lx, int ly)

uint16_t	GetOffsetValue (int col, int row)

int	GetPixelForBgLayer (int x, int y, int layer, bool priority)

uint8_t	Read (uint8_t adr, bool latch)

void	Write (uint8_t adr, uint8_t val)

uint16_t	GetVramRemap ()

void	PutPixels (uint8_t *pixel_data)

void	DumpState () const

void	SetDebugDump (bool enable)

bool	IsDebugDumpEnabled () const

const std::vector< uint8_t > &	GetFrameBuffer () const

void	SetPixelFormat (uint8_t format)

int	GetPixelForMode7 (int x, int layer, bool priority)

Public Attributes
bool	frame_overscan_ = false

bool	overscan_ = false

bool	forced_blank_

uint8_t	brightness

uint8_t	mode

bool	bg3priority

bool	even_frame

bool	pseudo_hires_

bool	interlace

bool	frame_interlace

bool	direct_color_

const int	cyclesPerScanline = 341

const int	totalScanlines = 262

const int	visibleScanlines = 224

bool	enable_forced_blanking_ = false

bool	enable_debug_dump_ = false

int	cycle_count_ = 0

int	current_scanline_ = 0

uint16_t	vram [0x8000]

uint16_t	vram_pointer

bool	vram_increment_on_high_

uint16_t	vram_increment_

uint8_t	vram_remap_mode_

uint16_t	vram_read_buffer_

uint16_t	cgram [0x100]

Private Attributes
int	last_rendered_x_ = 0

uint8_t	cgram_pointer_

bool	cgram_second_write_

uint8_t	cgram_buffer_

uint16_t	oam [0x100]

uint8_t	high_oam_ [0x20]

uint8_t	oam_adr_

uint8_t	oam_adr_written_

bool	oam_in_high_

bool	oam_in_high_written_

bool	oam_second_write_

uint8_t	oam_buffer_

bool	time_over_ = false

bool	range_over_ = false

bool	obj_interlace_

bool	obj_priority_

uint16_t	obj_tile_adr1_

uint16_t	obj_tile_adr2_

uint8_t	obj_size_

std::array< uint8_t, 256 >	obj_pixel_buffer_

std::array< uint8_t, 256 >	obj_priority_buffer_

uint8_t	clip_mode_ = 0

uint8_t	prevent_math_mode_ = 0

bool	math_enabled_array_ [6] = {false, false, false, false, false, false}

bool	add_subscreen_ = false

bool	subtract_color_

bool	half_color_

uint8_t	fixed_color_r_

uint8_t	fixed_color_g_

uint8_t	fixed_color_b_

Layer	layer_ [5]

int16_t	m7matrix [8]

uint8_t	m7prev

bool	m7largeField

bool	m7charFill

bool	m7xFlip

bool	m7yFlip

bool	m7extBg

int32_t	m7startX

int32_t	m7startY

WindowLayer	windowLayer [6]

uint8_t	window1left

uint8_t	window1right

uint8_t	window2left

uint8_t	window2right

std::array< BackgroundLayer, 4 >	bg_layers_

uint8_t	mosaic_startline_ = 1

BgLayer	bg_layer_ [4]

uint8_t	scroll_prev_

uint8_t	scroll_prev2_

uint8_t	mosaic_size_

uint8_t	pixelBuffer [512 4 239 *2]

uint8_t	pixelOutputFormat = 0

uint16_t	h_count_

uint16_t	v_count_

bool	h_count_second_

bool	v_count_second_

bool	counters_latched_

uint8_t	ppu1_open_bus_

uint8_t	ppu2_open_bus_

uint16_t	tile_data_size_

uint16_t	vram_base_address_

uint16_t	tilemap_base_address_

uint16_t	screen_brightness_ = 0x00

Memory &	memory_

Tilemap	tilemap_

BackgroundMode	bg_mode_

std::vector< SpriteAttributes >	sprites_

std::vector< uint8_t >	tile_data_

std::vector< uint8_t >	frame_buffer_

OAMSize	oam_size_

OAMAddress	oam_address_

Mosaic	mosaic_

std::array< BGSC, 4 >	bgsc_

std::array< BGNBA, 4 >	bgnba_

std::array< BGHOFS, 4 >	bghofs_

std::array< BGVOFS, 4 >	bgvofs_

Detailed Description

Definition at line 253 of file ppu.h.

Constructor & Destructor Documentation

◆ Ppu()

yaze::emu::Ppu::Ppu ( Memory & memory )

inline

Definition at line 256 of file ppu.h.

Member Function Documentation

◆ Init()

void yaze::emu::Ppu::Init ( )

inline

Definition at line 259 of file ppu.h.

References frame_buffer_, and pixelOutputFormat.

Referenced by yaze::emu::Snes::Init().

◆ Reset()

void yaze::emu::Ppu::Reset ( )

Definition at line 40 of file ppu.cc.

Referenced by yaze::emu::Snes::Reset().

◆ SaveState()

void yaze::emu::Ppu::SaveState ( std::ostream & stream )

Definition at line 1206 of file ppu.cc.

References add_subscreen_, bg3priority, bg_layer_, bg_mode_, bghofs_, bgnba_, bgsc_, bgvofs_, brightness, cgram, cgram_buffer_, cgram_pointer_, cgram_second_write_, clip_mode_, counters_latched_, current_scanline_, cycle_count_, direct_color_, even_frame, fixed_color_b_, fixed_color_g_, fixed_color_r_, forced_blank_, frame_interlace, frame_overscan_, h_count_, h_count_second_, half_color_, high_oam_, interlace, last_rendered_x_, layer_, m7charFill, m7extBg, m7largeField, m7matrix, m7prev, m7startX, m7startY, m7xFlip, m7yFlip, math_enabled_array_, mode, mosaic_, mosaic_size_, mosaic_startline_, oam, oam_address_, oam_adr_, oam_adr_written_, oam_buffer_, oam_in_high_, oam_in_high_written_, oam_second_write_, oam_size_, obj_interlace_, obj_pixel_buffer_, obj_priority_, obj_priority_buffer_, obj_size_, obj_tile_adr1_, obj_tile_adr2_, overscan_, pixelOutputFormat, ppu1_open_bus_, ppu2_open_bus_, prevent_math_mode_, pseudo_hires_, range_over_, screen_brightness_, scroll_prev2_, scroll_prev_, subtract_color_, tile_data_size_, tilemap_base_address_, time_over_, v_count_, v_count_second_, vram, vram_base_address_, vram_increment_, vram_increment_on_high_, vram_pointer, vram_read_buffer_, vram_remap_mode_, window1left, window1right, window2left, window2right, and windowLayer.

Referenced by yaze::emu::Snes::saveState().

◆ LoadState()

void yaze::emu::Ppu::LoadState ( std::istream & stream )

Definition at line 1344 of file ppu.cc.

References add_subscreen_, bg3priority, bg_layer_, bg_mode_, bghofs_, bgnba_, bgsc_, bgvofs_, brightness, cgram, cgram_buffer_, cgram_pointer_, cgram_second_write_, clip_mode_, counters_latched_, current_scanline_, cycle_count_, direct_color_, even_frame, fixed_color_b_, fixed_color_g_, fixed_color_r_, forced_blank_, frame_interlace, frame_overscan_, h_count_, h_count_second_, half_color_, high_oam_, interlace, last_rendered_x_, layer_, m7charFill, m7extBg, m7largeField, m7matrix, m7prev, m7startX, m7startY, m7xFlip, m7yFlip, math_enabled_array_, mode, mosaic_, mosaic_size_, mosaic_startline_, oam, oam_address_, oam_adr_, oam_adr_written_, oam_buffer_, oam_in_high_, oam_in_high_written_, oam_second_write_, oam_size_, obj_interlace_, obj_pixel_buffer_, obj_priority_, obj_priority_buffer_, obj_size_, obj_tile_adr1_, obj_tile_adr2_, overscan_, pixelOutputFormat, ppu1_open_bus_, ppu2_open_bus_, prevent_math_mode_, pseudo_hires_, range_over_, screen_brightness_, scroll_prev2_, scroll_prev_, subtract_color_, tile_data_size_, tilemap_base_address_, time_over_, v_count_, v_count_second_, vram, vram_base_address_, vram_increment_, vram_increment_on_high_, vram_pointer, vram_read_buffer_, vram_remap_mode_, window1left, window1right, window2left, window2right, and windowLayer.

Referenced by yaze::emu::Snes::LoadLegacyState(), and yaze::emu::Snes::loadState().

◆ HandleFrameStart()

void yaze::emu::Ppu::HandleFrameStart ( )

Definition at line 139 of file ppu.cc.

References even_frame, mosaic_startline_, range_over_, and time_over_.

Referenced by yaze::emu::Snes::RunCycle().

◆ StartLine()

void yaze::emu::Ppu::StartLine ( int line )

Definition at line 147 of file ppu.cc.

References CalculateMode7Starts(), current_scanline_, EvaluateSprites(), forced_blank_, last_rendered_x_, mode, and obj_pixel_buffer_.

Referenced by yaze::emu::Snes::RunCycle(), and RunLine().

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◆ CatchUp()

void yaze::emu::Ppu::CatchUp ( int h_pos )

Definition at line 160 of file ppu.cc.

References current_scanline_, HandlePixel(), and last_rendered_x_.

Referenced by yaze::emu::Snes::RunCycle(), RunLine(), and yaze::emu::Snes::WriteBBus().

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◆ RunLine()

void yaze::emu::Ppu::RunLine ( int line )

Definition at line 175 of file ppu.cc.

References CatchUp(), and StartLine().

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◆ HandlePixel()

void yaze::emu::Ppu::HandlePixel	(	int	x,
		int	y )

Todo: subscreen pixels can be clipped to black as well

Todo

Todo: math for subscreen pixels (add/sub sub to main)

Definition at line 181 of file ppu.cc.

References add_subscreen_, brightness, clip_mode_, even_frame, fixed_color_b_, fixed_color_g_, fixed_color_r_, forced_blank_, GetPixel(), GetWindowState(), half_color_, math_enabled_array_, mode, pixelBuffer, pixelOutputFormat, prevent_math_mode_, pseudo_hires_, and subtract_color_.

Referenced by CatchUp().

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◆ LatchHV()

void yaze::emu::Ppu::LatchHV ( )

inline

Definition at line 277 of file ppu.h.

References counters_latched_, h_count_, yaze::emu::Memory::h_pos(), memory_, v_count_, and yaze::emu::Memory::v_pos().

Referenced by Read(), and yaze::emu::Snes::WriteReg().

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◆ GetPixel()

int yaze::emu::Ppu::GetPixel	(	int	x,
		int	y,
		bool	sub,
		int *	r,
		int *	g,
		int *	b )

Definition at line 276 of file ppu.cc.

References bg3priority, bg_layer_, cgram, direct_color_, even_frame, GetPixelForBgLayer(), GetPixelForMode7(), GetWindowState(), HandleOPT(), yaze::emu::BgLayer::hScroll, interlace, layer_, m7extBg, yaze::emu::Layer::mainScreenEnabled, yaze::emu::Layer::mainScreenWindowed, mode, mosaic_size_, mosaic_startline_, yaze::emu::BgLayer::mosaicEnabled, obj_pixel_buffer_, obj_priority_buffer_, yaze::emu::Layer::subScreenEnabled, yaze::emu::Layer::subScreenWindowed, and yaze::emu::BgLayer::vScroll.

Referenced by HandlePixel().

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◆ EvaluateSprites()

void yaze::emu::Ppu::EvaluateSprites ( int line )

Todo: rectangular sprites, wierdness with sprites at -256

Definition at line 529 of file ppu.cc.

References even_frame, high_oam_, oam, oam_adr_, obj_interlace_, obj_pixel_buffer_, obj_priority_, obj_priority_buffer_, obj_size_, obj_tile_adr1_, obj_tile_adr2_, range_over_, time_over_, and vram.

Referenced by StartLine().

◆ CalculateMode7Starts()

void yaze::emu::Ppu::CalculateMode7Starts ( int y )

Definition at line 628 of file ppu.cc.

References bg_layer_, m7matrix, m7startX, m7startY, m7yFlip, mosaic_size_, and mosaic_startline_.

Referenced by StartLine().

◆ GetWindowState()

bool yaze::emu::Ppu::GetWindowState	(	int	layer,
		int	x )

Definition at line 374 of file ppu.cc.

References yaze::emu::WindowLayer::window1inversed, window1left, window1right, yaze::emu::WindowLayer::window2inversed, window2left, window2right, and windowLayer.

Referenced by GetPixel(), and HandlePixel().

◆ CheckOverscan()

bool yaze::emu::Ppu::CheckOverscan ( )

inline

Definition at line 307 of file ppu.h.

References frame_overscan_, and overscan_.

Referenced by yaze::emu::Snes::RunCycle().

◆ HandleVblank()

void yaze::emu::Ppu::HandleVblank ( )

Definition at line 649 of file ppu.cc.

References DumpState(), enable_debug_dump_, forced_blank_, frame_interlace, interlace, oam_adr_, oam_adr_written_, oam_in_high_, oam_in_high_written_, and oam_second_write_.

Referenced by yaze::emu::Snes::RunCycle().

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◆ HandleOPT()

void yaze::emu::Ppu::HandleOPT	(	int	layer,
		int *	lx,
		int *	ly )

Todo: not sure if correct

Todo: not sure if correct for interlace

Definition at line 406 of file ppu.cc.

References bg_layer_, GetOffsetValue(), yaze::emu::BgLayer::hScroll, and mode.

Referenced by GetPixel().

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◆ GetOffsetValue()

uint16_t yaze::emu::Ppu::GetOffsetValue	(	int	col,
		int	row )

Definition at line 442 of file ppu.cc.

References bg_layer_, yaze::emu::BgLayer::bigTiles, yaze::emu::BgLayer::hScroll, yaze::emu::BgLayer::tilemapAdr, yaze::emu::BgLayer::tilemapHigher, yaze::emu::BgLayer::tilemapWider, vram, and yaze::emu::BgLayer::vScroll.

Referenced by HandleOPT().

◆ GetPixelForBgLayer()

int yaze::emu::Ppu::GetPixelForBgLayer	(	int	x,
		int	y,
		int	layer,
		bool	priority )

Definition at line 457 of file ppu.cc.

References bg_layer_, yaze::emu::BgLayer::bigTiles, mode, yaze::emu::BgLayer::tileAdr, yaze::emu::BgLayer::tilemapAdr, yaze::emu::BgLayer::tilemapHigher, yaze::emu::BgLayer::tilemapWider, and vram.

Referenced by GetPixel().

◆ Read()

uint8_t yaze::emu::Ppu::Read	(	uint8_t	adr,
		bool	latch )

Todo: only when ppulatch is set

Definition at line 668 of file ppu.cc.

References cgram, cgram_pointer_, cgram_second_write_, counters_latched_, even_frame, GetVramRemap(), h_count_, h_count_second_, high_oam_, LatchHV(), m7matrix, memory_, oam, oam_adr_, oam_in_high_, oam_second_write_, yaze::emu::Memory::open_bus(), yaze::emu::Memory::pal_timing(), ppu1_open_bus_, ppu2_open_bus_, range_over_, time_over_, v_count_, v_count_second_, vram, vram_increment_, vram_increment_on_high_, vram_pointer, and vram_read_buffer_.

Referenced by yaze::emu::Snes::ReadBBus().

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◆ Write()

void yaze::emu::Ppu::Write	(	uint8_t	adr,
		uint8_t	val )

Todo: oam address reset when written on first line of vblank, (and when

Todo: mosaic line reset specifics

Todo: vram access during rendering (also cgram and oam)

Definition at line 805 of file ppu.cc.

References add_subscreen_, bg3priority, bg_layer_, yaze::emu::BgLayer::bigTiles, brightness, cgram, cgram_buffer_, cgram_pointer_, cgram_second_write_, clip_mode_, direct_color_, fixed_color_b_, fixed_color_g_, fixed_color_r_, forced_blank_, GetVramRemap(), half_color_, high_oam_, interlace, layer_, m7charFill, m7extBg, m7largeField, m7matrix, m7prev, m7xFlip, m7yFlip, yaze::emu::Layer::mainScreenEnabled, yaze::emu::Layer::mainScreenWindowed, yaze::emu::WindowLayer::maskLogic, math_enabled_array_, memory_, mode, mosaic_size_, mosaic_startline_, yaze::emu::BgLayer::mosaicEnabled, oam, oam_adr_, oam_adr_written_, oam_buffer_, oam_in_high_, oam_in_high_written_, oam_second_write_, obj_interlace_, obj_priority_, obj_size_, obj_tile_adr1_, obj_tile_adr2_, overscan_, prevent_math_mode_, pseudo_hires_, scroll_prev2_, scroll_prev_, yaze::emu::Layer::subScreenEnabled, yaze::emu::Layer::subScreenWindowed, subtract_color_, yaze::emu::BgLayer::tileAdr, yaze::emu::BgLayer::tilemapAdr, yaze::emu::BgLayer::tilemapHigher, yaze::emu::BgLayer::tilemapWider, yaze::emu::Memory::v_pos(), vram, vram_increment_, vram_increment_on_high_, vram_pointer, vram_read_buffer_, vram_remap_mode_, window1left, window1right, window2left, window2right, and windowLayer.

Referenced by yaze::emu::Snes::WriteBBus().

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◆ GetVramRemap()

uint16_t yaze::emu::Ppu::GetVramRemap ( )

Definition at line 1102 of file ppu.cc.

References vram_pointer, and vram_remap_mode_.

Referenced by Read(), and Write().

◆ PutPixels()

void yaze::emu::Ppu::PutPixels ( uint8_t * pixel_data )

Definition at line 1117 of file ppu.cc.

References even_frame, frame_interlace, frame_overscan_, and pixelBuffer.

Referenced by yaze::emu::Snes::SetPixels().

◆ DumpState()

void yaze::emu::Ppu::DumpState ( ) const

Definition at line 1136 of file ppu.cc.

References bg3priority, bg_layer_, brightness, cgram, forced_blank_, layer_, yaze::emu::Layer::mainScreenEnabled, mode, yaze::emu::Layer::subScreenEnabled, yaze::emu::BgLayer::tileAdr, yaze::emu::BgLayer::tilemapAdr, and vram.

Referenced by HandleVblank().

◆ SetDebugDump()

void yaze::emu::Ppu::SetDebugDump ( bool enable )

inline

Definition at line 326 of file ppu.h.

References enable_debug_dump_.

◆ IsDebugDumpEnabled()

bool yaze::emu::Ppu::IsDebugDumpEnabled ( ) const

inline

Definition at line 327 of file ppu.h.

References enable_debug_dump_.

◆ GetFrameBuffer()

const std::vector< uint8_t > & yaze::emu::Ppu::GetFrameBuffer ( ) const

inline

Definition at line 330 of file ppu.h.

References frame_buffer_.

◆ SetPixelFormat()

void yaze::emu::Ppu::SetPixelFormat ( uint8_t format )

inline

Definition at line 333 of file ppu.h.

References pixelOutputFormat.

◆ GetPixelForMode7()

int yaze::emu::Ppu::GetPixelForMode7	(	int	x,
		int	layer,
		bool	priority )

Definition at line 353 of file ppu.cc.

References m7charFill, m7largeField, m7matrix, m7startX, m7startY, m7xFlip, and vram.

Referenced by GetPixel().

Member Data Documentation

◆ frame_overscan_

bool yaze::emu::Ppu::frame_overscan_ = false

Definition at line 292 of file ppu.h.

Referenced by CheckOverscan(), LoadState(), PutPixels(), Reset(), and SaveState().

◆ overscan_

bool yaze::emu::Ppu::overscan_ = false

Definition at line 293 of file ppu.h.

Referenced by CheckOverscan(), LoadState(), Reset(), SaveState(), and Write().

◆ forced_blank_

bool yaze::emu::Ppu::forced_blank_

Definition at line 296 of file ppu.h.

Referenced by DumpState(), HandlePixel(), HandleVblank(), LoadState(), Reset(), SaveState(), StartLine(), and Write().

◆ brightness

uint8_t yaze::emu::Ppu::brightness

Definition at line 297 of file ppu.h.

Referenced by DumpState(), HandlePixel(), LoadState(), Reset(), SaveState(), and Write().

◆ mode

uint8_t yaze::emu::Ppu::mode

Definition at line 298 of file ppu.h.

Referenced by DumpState(), GetPixel(), GetPixelForBgLayer(), HandleOPT(), HandlePixel(), LoadState(), Reset(), SaveState(), StartLine(), and Write().

◆ bg3priority

bool yaze::emu::Ppu::bg3priority

Definition at line 299 of file ppu.h.

Referenced by DumpState(), GetPixel(), LoadState(), Reset(), SaveState(), and Write().

◆ even_frame

bool yaze::emu::Ppu::even_frame

Definition at line 300 of file ppu.h.

Referenced by EvaluateSprites(), GetPixel(), HandleFrameStart(), HandlePixel(), LoadState(), PutPixels(), Read(), Reset(), yaze::emu::Snes::RunCycle(), and SaveState().

◆ pseudo_hires_

bool yaze::emu::Ppu::pseudo_hires_

Definition at line 301 of file ppu.h.

Referenced by HandlePixel(), LoadState(), Reset(), SaveState(), and Write().

◆ interlace

bool yaze::emu::Ppu::interlace

Definition at line 302 of file ppu.h.

Referenced by GetPixel(), HandleVblank(), LoadState(), Reset(), SaveState(), and Write().

◆ frame_interlace

bool yaze::emu::Ppu::frame_interlace

Definition at line 303 of file ppu.h.

Referenced by HandleVblank(), LoadState(), PutPixels(), Reset(), yaze::emu::Snes::RunCycle(), and SaveState().

◆ direct_color_

bool yaze::emu::Ppu::direct_color_

Definition at line 305 of file ppu.h.

Referenced by GetPixel(), LoadState(), Reset(), SaveState(), and Write().

◆ cyclesPerScanline

const int yaze::emu::Ppu::cyclesPerScanline = 341

Definition at line 337 of file ppu.h.

◆ totalScanlines

const int yaze::emu::Ppu::totalScanlines = 262

Definition at line 338 of file ppu.h.

◆ visibleScanlines

const int yaze::emu::Ppu::visibleScanlines = 224

Definition at line 339 of file ppu.h.

◆ enable_forced_blanking_

bool yaze::emu::Ppu::enable_forced_blanking_ = false

Definition at line 341 of file ppu.h.

◆ enable_debug_dump_

bool yaze::emu::Ppu::enable_debug_dump_ = false

Definition at line 342 of file ppu.h.

Referenced by HandleVblank(), IsDebugDumpEnabled(), and SetDebugDump().

◆ cycle_count_

int yaze::emu::Ppu::cycle_count_ = 0

Definition at line 344 of file ppu.h.

Referenced by LoadState(), and SaveState().

◆ current_scanline_

int yaze::emu::Ppu::current_scanline_ = 0

Definition at line 345 of file ppu.h.

Referenced by CatchUp(), LoadState(), SaveState(), and StartLine().

◆ vram

uint16_t yaze::emu::Ppu::vram[0x8000]

Definition at line 348 of file ppu.h.

Referenced by DumpState(), EvaluateSprites(), GetOffsetValue(), GetPixelForBgLayer(), GetPixelForMode7(), LoadState(), Read(), Reset(), SaveState(), and Write().

◆ vram_pointer

uint16_t yaze::emu::Ppu::vram_pointer

Definition at line 349 of file ppu.h.

Referenced by GetVramRemap(), LoadState(), Read(), Reset(), SaveState(), and Write().

◆ vram_increment_on_high_

bool yaze::emu::Ppu::vram_increment_on_high_

Definition at line 350 of file ppu.h.

Referenced by LoadState(), Read(), Reset(), SaveState(), and Write().

◆ vram_increment_

uint16_t yaze::emu::Ppu::vram_increment_

Definition at line 351 of file ppu.h.

Referenced by LoadState(), Read(), Reset(), SaveState(), and Write().

◆ vram_remap_mode_

uint8_t yaze::emu::Ppu::vram_remap_mode_

Definition at line 352 of file ppu.h.

Referenced by GetVramRemap(), LoadState(), Reset(), SaveState(), and Write().

◆ vram_read_buffer_

uint16_t yaze::emu::Ppu::vram_read_buffer_

Definition at line 353 of file ppu.h.

Referenced by LoadState(), Read(), Reset(), SaveState(), and Write().

◆ cgram

uint16_t yaze::emu::Ppu::cgram[0x100]

Definition at line 356 of file ppu.h.

Referenced by DumpState(), GetPixel(), LoadState(), Read(), Reset(), SaveState(), and Write().

◆ last_rendered_x_

int yaze::emu::Ppu::last_rendered_x_ = 0

private

Definition at line 359 of file ppu.h.

Referenced by CatchUp(), LoadState(), Reset(), SaveState(), and StartLine().

◆ cgram_pointer_

uint8_t yaze::emu::Ppu::cgram_pointer_

private

Definition at line 361 of file ppu.h.

Referenced by LoadState(), Read(), Reset(), SaveState(), and Write().

◆ cgram_second_write_

bool yaze::emu::Ppu::cgram_second_write_

private

Definition at line 362 of file ppu.h.

Referenced by LoadState(), Read(), Reset(), SaveState(), and Write().

◆ cgram_buffer_

uint8_t yaze::emu::Ppu::cgram_buffer_

private

Definition at line 363 of file ppu.h.

Referenced by LoadState(), Reset(), SaveState(), and Write().

◆ oam

uint16_t yaze::emu::Ppu::oam[0x100]

private

Definition at line 366 of file ppu.h.

Referenced by EvaluateSprites(), LoadState(), Read(), Reset(), SaveState(), and Write().

◆ high_oam_

uint8_t yaze::emu::Ppu::high_oam_[0x20]

private

Definition at line 367 of file ppu.h.

Referenced by EvaluateSprites(), LoadState(), Read(), Reset(), SaveState(), and Write().

◆ oam_adr_

uint8_t yaze::emu::Ppu::oam_adr_

private

Definition at line 368 of file ppu.h.

Referenced by EvaluateSprites(), HandleVblank(), LoadState(), Read(), Reset(), SaveState(), and Write().

◆ oam_adr_written_

uint8_t yaze::emu::Ppu::oam_adr_written_

private

Definition at line 369 of file ppu.h.

Referenced by HandleVblank(), LoadState(), Reset(), SaveState(), and Write().

◆ oam_in_high_

bool yaze::emu::Ppu::oam_in_high_

private

Definition at line 370 of file ppu.h.

Referenced by HandleVblank(), LoadState(), Read(), Reset(), SaveState(), and Write().

◆ oam_in_high_written_

bool yaze::emu::Ppu::oam_in_high_written_

private

Definition at line 371 of file ppu.h.

Referenced by HandleVblank(), LoadState(), Reset(), SaveState(), and Write().

◆ oam_second_write_

bool yaze::emu::Ppu::oam_second_write_

private

Definition at line 372 of file ppu.h.

Referenced by HandleVblank(), LoadState(), Read(), Reset(), SaveState(), and Write().

◆ oam_buffer_

uint8_t yaze::emu::Ppu::oam_buffer_

private

Definition at line 373 of file ppu.h.

Referenced by LoadState(), Reset(), SaveState(), and Write().

◆ time_over_

bool yaze::emu::Ppu::time_over_ = false

private

Definition at line 376 of file ppu.h.

Referenced by EvaluateSprites(), HandleFrameStart(), LoadState(), Read(), Reset(), and SaveState().

◆ range_over_

bool yaze::emu::Ppu::range_over_ = false

private

Definition at line 377 of file ppu.h.

Referenced by EvaluateSprites(), HandleFrameStart(), LoadState(), Read(), Reset(), and SaveState().

◆ obj_interlace_

bool yaze::emu::Ppu::obj_interlace_

private

Definition at line 378 of file ppu.h.

Referenced by EvaluateSprites(), LoadState(), Reset(), SaveState(), and Write().

◆ obj_priority_

bool yaze::emu::Ppu::obj_priority_

private

Definition at line 379 of file ppu.h.

Referenced by EvaluateSprites(), LoadState(), Reset(), SaveState(), and Write().

◆ obj_tile_adr1_

uint16_t yaze::emu::Ppu::obj_tile_adr1_

private

Definition at line 380 of file ppu.h.

Referenced by EvaluateSprites(), LoadState(), Reset(), SaveState(), and Write().

◆ obj_tile_adr2_

uint16_t yaze::emu::Ppu::obj_tile_adr2_

private

Definition at line 381 of file ppu.h.

Referenced by EvaluateSprites(), LoadState(), Reset(), SaveState(), and Write().

◆ obj_size_

uint8_t yaze::emu::Ppu::obj_size_

private

Definition at line 382 of file ppu.h.

Referenced by EvaluateSprites(), LoadState(), Reset(), SaveState(), and Write().

◆ obj_pixel_buffer_

std::array<uint8_t, 256> yaze::emu::Ppu::obj_pixel_buffer_

private

Definition at line 383 of file ppu.h.

Referenced by EvaluateSprites(), GetPixel(), LoadState(), Reset(), SaveState(), and StartLine().

◆ obj_priority_buffer_

std::array<uint8_t, 256> yaze::emu::Ppu::obj_priority_buffer_

private

Definition at line 384 of file ppu.h.

Referenced by EvaluateSprites(), GetPixel(), LoadState(), Reset(), and SaveState().

◆ clip_mode_

uint8_t yaze::emu::Ppu::clip_mode_ = 0

private

Definition at line 387 of file ppu.h.

Referenced by HandlePixel(), LoadState(), Reset(), SaveState(), and Write().

◆ prevent_math_mode_

uint8_t yaze::emu::Ppu::prevent_math_mode_ = 0

private

Definition at line 388 of file ppu.h.

Referenced by HandlePixel(), LoadState(), Reset(), SaveState(), and Write().

◆ math_enabled_array_

bool yaze::emu::Ppu::math_enabled_array_[6] = {false, false, false, false, false, false}

private

Definition at line 389 of file ppu.h.

Referenced by HandlePixel(), LoadState(), Reset(), SaveState(), and Write().

◆ add_subscreen_

bool yaze::emu::Ppu::add_subscreen_ = false

private

Definition at line 390 of file ppu.h.

Referenced by HandlePixel(), LoadState(), Reset(), SaveState(), and Write().

◆ subtract_color_

bool yaze::emu::Ppu::subtract_color_

private

Definition at line 391 of file ppu.h.

Referenced by HandlePixel(), LoadState(), Reset(), SaveState(), and Write().

◆ half_color_

bool yaze::emu::Ppu::half_color_

private

Definition at line 392 of file ppu.h.

Referenced by HandlePixel(), LoadState(), Reset(), SaveState(), and Write().

◆ fixed_color_r_

uint8_t yaze::emu::Ppu::fixed_color_r_

private

Definition at line 393 of file ppu.h.

Referenced by HandlePixel(), LoadState(), Reset(), SaveState(), and Write().

◆ fixed_color_g_

uint8_t yaze::emu::Ppu::fixed_color_g_

private

Definition at line 394 of file ppu.h.

Referenced by HandlePixel(), LoadState(), Reset(), SaveState(), and Write().

◆ fixed_color_b_

uint8_t yaze::emu::Ppu::fixed_color_b_

private

Definition at line 395 of file ppu.h.

Referenced by HandlePixel(), LoadState(), Reset(), SaveState(), and Write().

◆ layer_

Layer yaze::emu::Ppu::layer_[5]

private

Definition at line 398 of file ppu.h.

Referenced by DumpState(), GetPixel(), LoadState(), Reset(), SaveState(), and Write().

◆ m7matrix

int16_t yaze::emu::Ppu::m7matrix[8]

private

Definition at line 401 of file ppu.h.

Referenced by CalculateMode7Starts(), GetPixelForMode7(), LoadState(), Read(), Reset(), SaveState(), and Write().

◆ m7prev

uint8_t yaze::emu::Ppu::m7prev

private

Definition at line 402 of file ppu.h.

Referenced by LoadState(), Reset(), SaveState(), and Write().

◆ m7largeField

bool yaze::emu::Ppu::m7largeField

private

Definition at line 403 of file ppu.h.

Referenced by GetPixelForMode7(), LoadState(), Reset(), SaveState(), and Write().

◆ m7charFill

bool yaze::emu::Ppu::m7charFill

private

Definition at line 404 of file ppu.h.

Referenced by GetPixelForMode7(), LoadState(), Reset(), SaveState(), and Write().

◆ m7xFlip

bool yaze::emu::Ppu::m7xFlip

private

Definition at line 405 of file ppu.h.

Referenced by GetPixelForMode7(), LoadState(), Reset(), SaveState(), and Write().

◆ m7yFlip

bool yaze::emu::Ppu::m7yFlip

private

Definition at line 406 of file ppu.h.

Referenced by CalculateMode7Starts(), LoadState(), Reset(), SaveState(), and Write().

◆ m7extBg

bool yaze::emu::Ppu::m7extBg

private

Definition at line 407 of file ppu.h.

Referenced by GetPixel(), LoadState(), Reset(), SaveState(), and Write().

◆ m7startX

int32_t yaze::emu::Ppu::m7startX

private

Definition at line 410 of file ppu.h.

Referenced by CalculateMode7Starts(), GetPixelForMode7(), LoadState(), Reset(), and SaveState().

◆ m7startY

int32_t yaze::emu::Ppu::m7startY

private

Definition at line 411 of file ppu.h.

Referenced by CalculateMode7Starts(), GetPixelForMode7(), LoadState(), Reset(), and SaveState().

◆ windowLayer

WindowLayer yaze::emu::Ppu::windowLayer[6]

private

Definition at line 414 of file ppu.h.

Referenced by GetWindowState(), LoadState(), Reset(), SaveState(), and Write().

◆ window1left

uint8_t yaze::emu::Ppu::window1left

private

Definition at line 415 of file ppu.h.

Referenced by GetWindowState(), LoadState(), Reset(), SaveState(), and Write().

◆ window1right

uint8_t yaze::emu::Ppu::window1right

private

Definition at line 416 of file ppu.h.

Referenced by GetWindowState(), LoadState(), Reset(), SaveState(), and Write().

◆ window2left

uint8_t yaze::emu::Ppu::window2left

private

Definition at line 417 of file ppu.h.

Referenced by GetWindowState(), LoadState(), Reset(), SaveState(), and Write().

◆ window2right

uint8_t yaze::emu::Ppu::window2right

private

Definition at line 418 of file ppu.h.

Referenced by GetWindowState(), LoadState(), Reset(), SaveState(), and Write().

◆ bg_layers_

std::array<BackgroundLayer, 4> yaze::emu::Ppu::bg_layers_

private

Definition at line 421 of file ppu.h.

◆ mosaic_startline_

uint8_t yaze::emu::Ppu::mosaic_startline_ = 1

private

Definition at line 422 of file ppu.h.

Referenced by CalculateMode7Starts(), GetPixel(), HandleFrameStart(), LoadState(), Reset(), SaveState(), and Write().

◆ bg_layer_

BgLayer yaze::emu::Ppu::bg_layer_[4]

private

Definition at line 424 of file ppu.h.

Referenced by CalculateMode7Starts(), DumpState(), GetOffsetValue(), GetPixel(), GetPixelForBgLayer(), HandleOPT(), LoadState(), Reset(), SaveState(), and Write().

◆ scroll_prev_

uint8_t yaze::emu::Ppu::scroll_prev_

private

Definition at line 425 of file ppu.h.

Referenced by LoadState(), Reset(), SaveState(), and Write().

◆ scroll_prev2_

uint8_t yaze::emu::Ppu::scroll_prev2_

private

Definition at line 426 of file ppu.h.

Referenced by LoadState(), Reset(), SaveState(), and Write().

◆ mosaic_size_

uint8_t yaze::emu::Ppu::mosaic_size_

private

Definition at line 427 of file ppu.h.

Referenced by CalculateMode7Starts(), GetPixel(), LoadState(), Reset(), SaveState(), and Write().

◆ pixelBuffer

uint8_t yaze::emu::Ppu::pixelBuffer[512 *4 *239 *2]

private

Definition at line 431 of file ppu.h.

Referenced by HandlePixel(), PutPixels(), and Reset().

◆ pixelOutputFormat

uint8_t yaze::emu::Ppu::pixelOutputFormat = 0

private

Definition at line 432 of file ppu.h.

Referenced by HandlePixel(), Init(), LoadState(), SaveState(), and SetPixelFormat().

◆ h_count_

uint16_t yaze::emu::Ppu::h_count_

private

Definition at line 435 of file ppu.h.

Referenced by LatchHV(), LoadState(), Read(), Reset(), and SaveState().

◆ v_count_

uint16_t yaze::emu::Ppu::v_count_

private

Definition at line 436 of file ppu.h.

Referenced by LatchHV(), LoadState(), Read(), Reset(), and SaveState().

◆ h_count_second_

bool yaze::emu::Ppu::h_count_second_

private

Definition at line 437 of file ppu.h.

Referenced by LoadState(), Read(), Reset(), and SaveState().

◆ v_count_second_

bool yaze::emu::Ppu::v_count_second_

private

Definition at line 438 of file ppu.h.

Referenced by LoadState(), Read(), Reset(), and SaveState().

◆ counters_latched_

bool yaze::emu::Ppu::counters_latched_

private

Definition at line 439 of file ppu.h.

Referenced by LatchHV(), LoadState(), Read(), Reset(), and SaveState().

◆ ppu1_open_bus_

uint8_t yaze::emu::Ppu::ppu1_open_bus_

private

Definition at line 440 of file ppu.h.

Referenced by LoadState(), Read(), Reset(), and SaveState().

◆ ppu2_open_bus_

uint8_t yaze::emu::Ppu::ppu2_open_bus_

private

Definition at line 441 of file ppu.h.

Referenced by LoadState(), Read(), Reset(), and SaveState().

◆ tile_data_size_

uint16_t yaze::emu::Ppu::tile_data_size_

private

Definition at line 443 of file ppu.h.

Referenced by LoadState(), and SaveState().

◆ vram_base_address_

uint16_t yaze::emu::Ppu::vram_base_address_

private

Definition at line 444 of file ppu.h.

Referenced by LoadState(), and SaveState().

◆ tilemap_base_address_

uint16_t yaze::emu::Ppu::tilemap_base_address_

private

Definition at line 445 of file ppu.h.

Referenced by LoadState(), and SaveState().

◆ screen_brightness_

uint16_t yaze::emu::Ppu::screen_brightness_ = 0x00

private

Definition at line 446 of file ppu.h.

Referenced by LoadState(), and SaveState().

◆ memory_

Memory& yaze::emu::Ppu::memory_

private

Definition at line 448 of file ppu.h.

Referenced by LatchHV(), Read(), and Write().

◆ tilemap_

Tilemap yaze::emu::Ppu::tilemap_

private

Definition at line 450 of file ppu.h.

◆ bg_mode_

BackgroundMode yaze::emu::Ppu::bg_mode_

private

Definition at line 451 of file ppu.h.

Referenced by LoadState(), and SaveState().

◆ sprites_

std::vector<SpriteAttributes> yaze::emu::Ppu::sprites_

private

Definition at line 452 of file ppu.h.

◆ tile_data_

std::vector<uint8_t> yaze::emu::Ppu::tile_data_

private

Definition at line 453 of file ppu.h.

◆ frame_buffer_

std::vector<uint8_t> yaze::emu::Ppu::frame_buffer_

private

Definition at line 454 of file ppu.h.

Referenced by GetFrameBuffer(), and Init().

◆ oam_size_

OAMSize yaze::emu::Ppu::oam_size_

private

Definition at line 457 of file ppu.h.

Referenced by LoadState(), and SaveState().

◆ oam_address_

OAMAddress yaze::emu::Ppu::oam_address_

private

Definition at line 458 of file ppu.h.

Referenced by LoadState(), and SaveState().

◆ mosaic_

Mosaic yaze::emu::Ppu::mosaic_

private

Definition at line 459 of file ppu.h.

Referenced by LoadState(), and SaveState().

◆ bgsc_

std::array<BGSC, 4> yaze::emu::Ppu::bgsc_

private

Definition at line 460 of file ppu.h.

Referenced by LoadState(), and SaveState().

◆ bgnba_

std::array<BGNBA, 4> yaze::emu::Ppu::bgnba_

private

Definition at line 461 of file ppu.h.

Referenced by LoadState(), and SaveState().

◆ bghofs_

std::array<BGHOFS, 4> yaze::emu::Ppu::bghofs_

private

Definition at line 462 of file ppu.h.

Referenced by LoadState(), and SaveState().

◆ bgvofs_

std::array<BGVOFS, 4> yaze::emu::Ppu::bgvofs_

private

Definition at line 463 of file ppu.h.

Referenced by LoadState(), and SaveState().

The documentation for this class was generated from the following files:

src/app/emu/video/ppu.h
src/app/emu/video/ppu.cc

	yaze 0.3.2 Link to the Past ROM Editor

Public Member Functions

Public Attributes

Private Attributes

Detailed Description

Constructor & Destructor Documentation

◆ Ppu()

Member Function Documentation

◆ Init()

◆ Reset()

◆ SaveState()

◆ LoadState()

◆ HandleFrameStart()

◆ StartLine()

◆ CatchUp()

◆ RunLine()

◆ HandlePixel()

◆ LatchHV()

◆ GetPixel()

◆ EvaluateSprites()

◆ CalculateMode7Starts()

◆ GetWindowState()

◆ CheckOverscan()

◆ HandleVblank()

◆ HandleOPT()

◆ GetOffsetValue()

◆ GetPixelForBgLayer()

◆ Read()

◆ Write()

◆ GetVramRemap()

◆ PutPixels()

◆ DumpState()

◆ SetDebugDump()

◆ IsDebugDumpEnabled()

◆ GetFrameBuffer()

◆ SetPixelFormat()

◆ GetPixelForMode7()

Member Data Documentation

◆ frame_overscan_

◆ overscan_

◆ forced_blank_

◆ brightness

◆ mode

◆ bg3priority

◆ even_frame

◆ pseudo_hires_

◆ interlace

◆ frame_interlace

◆ direct_color_

◆ cyclesPerScanline

◆ totalScanlines

◆ visibleScanlines

◆ enable_forced_blanking_

◆ enable_debug_dump_

◆ cycle_count_

◆ current_scanline_

◆ vram

◆ vram_pointer

◆ vram_increment_on_high_

◆ vram_increment_

◆ vram_remap_mode_

◆ vram_read_buffer_

◆ cgram

◆ last_rendered_x_

◆ cgram_pointer_

◆ cgram_second_write_

◆ cgram_buffer_

◆ oam

◆ high_oam_

◆ oam_adr_

◆ oam_adr_written_

◆ oam_in_high_

◆ oam_in_high_written_

◆ oam_second_write_

◆ oam_buffer_

◆ time_over_

◆ range_over_

◆ obj_interlace_

◆ obj_priority_

◆ obj_tile_adr1_

◆ obj_tile_adr2_