yaze::gfx::Bitmap Class Reference

Represents a bitmap image optimized for SNES ROM hacking. More...

#include <bitmap.h>

Collaboration diagram for yaze::gfx::Bitmap:

Classes
struct	BitmapMetadata
	Metadata for tracking bitmap source format and palette requirements. More...
struct	DirtyRegion

Public Member Functions
	Bitmap ()=default
	Bitmap (int width, int height, int depth, const std::vector< uint8_t > &data)
	Create a bitmap with the given dimensions and raw pixel data.
	Bitmap (int width, int height, int depth, const std::vector< uint8_t > &data, const SnesPalette &palette)
	Create a bitmap with the given dimensions, data, and SNES palette.
	Bitmap (const Bitmap &other)
	Copy constructor - creates a deep copy.
Bitmap &	operator= (const Bitmap &other)
	Copy assignment operator.
	Bitmap (Bitmap &&other) noexcept
	Move constructor.
Bitmap &	operator= (Bitmap &&other) noexcept
	Move assignment operator.
	~Bitmap ()=default
	Destructor.
void	Create (int width, int height, int depth, std::span< uint8_t > data)
	Create a bitmap with the given dimensions and data.
void	Create (int width, int height, int depth, const std::vector< uint8_t > &data)
	Create a bitmap with the given dimensions and data.
void	Create (int width, int height, int depth, int format, const std::vector< uint8_t > &data)
	Create a bitmap with the given dimensions, format, and data.
void	Reformat (int format)
	Reformat the bitmap to use a different pixel format.
void	CreateTexture ()
	Creates the underlying SDL_Texture to be displayed.
void	UpdateTexture ()
	Updates the underlying SDL_Texture when it already exists.
void	QueueTextureUpdate (IRenderer *renderer)
	Queue texture update for batch processing (improved performance)
void	UpdateTextureData ()
	Updates the texture data from the surface.
void	SetPalette (const SnesPalette &palette)
	Set the palette for the bitmap.
void	SetPaletteWithTransparent (const SnesPalette &palette, size_t index, int length=7)
	Set the palette with a transparent color.
void	ApplyPaletteByMetadata (const SnesPalette &palette, int sub_palette_index=0)
	Apply palette using metadata-driven strategy Chooses between SetPalette and SetPaletteWithTransparent based on metadata.
void	ApplyStoredPalette ()
	Apply the stored palette to the surface (internal helper)
void	UpdateSurfacePixels ()
	Update SDL surface with current pixel data from data_ vector Call this after modifying pixel data via mutable_data()
void	SetPalette (const std::vector< SDL_Color > &palette)
	Set the palette using SDL colors.
void	WriteToPixel (int position, uint8_t value)
	Write a value to a pixel at the given position.
void	WriteColor (int position, const ImVec4 &color)
	Write a color to a pixel at the given position.
void	SetPixel (int x, int y, const SnesColor &color)
	Set a pixel at the given x,y coordinates with SNES color.
void	Resize (int new_width, int new_height)
	Resize the bitmap to new dimensions (preserves existing data)
void	InvalidatePaletteCache ()
	Invalidate the palette lookup cache (call when palette changes)
uint8_t	FindColorIndex (const SnesColor &color)
	Find color index in palette using optimized hash map lookup.
bool	ValidateDataSurfaceSync ()
	Validate that bitmap data and surface pixels are synchronized.
void	Get8x8Tile (int tile_index, int x, int y, std::vector< uint8_t > &tile_data, int &tile_data_offset)
	Extract an 8x8 tile from the bitmap (SNES standard tile size)
void	Get16x16Tile (int tile_x, int tile_y, std::vector< uint8_t > &tile_data, int &tile_data_offset)
	Extract a 16x16 tile from the bitmap (SNES metatile size)
const SnesPalette &	palette () const
SnesPalette *	mutable_palette ()
BitmapMetadata &	metadata ()
const BitmapMetadata &	metadata () const
int	width () const
int	height () const
int	depth () const
auto	size () const
const uint8_t *	data () const
std::vector< uint8_t > &	mutable_data ()
SDL_Surface *	surface () const
TextureHandle	texture () const
const std::vector< uint8_t > &	vector () const
uint8_t	at (int i) const
bool	modified () const
bool	is_active () const
void	set_active (bool active)
void	set_data (const std::vector< uint8_t > &data)
void	set_modified (bool modified)
void	set_texture (TextureHandle texture)

Static Private Member Functions
static uint32_t	HashColor (const ImVec4 &color)
	Hash a color for cache lookup.

Private Attributes
int	width_ = 0
int	height_ = 0
int	depth_ = 0
bool	active_ = false
bool	modified_ = false
void *	texture_pixels = nullptr
uint8_t *	pixel_data_ = nullptr
gfx::SnesPalette	palette_
BitmapMetadata	metadata_
std::vector< uint8_t >	data_
SDL_Surface *	surface_ = nullptr
TextureHandle	texture_ = nullptr
std::unordered_map< uint32_t, uint8_t >	color_to_index_cache_
struct yaze::gfx::Bitmap::DirtyRegion	dirty_region_

Detailed Description

Represents a bitmap image optimized for SNES ROM hacking.

The Bitmap class provides functionality to create, manipulate, and display bitmap images specifically designed for Link to the Past ROM editing. It supports:

Key Features:

• SNES-specific pixel formats (4BPP, 8BPP, indexed)
• Palette management with transparent color support
• Tile extraction (8x8, 16x16) for ROM tile editing
• Memory-efficient surface/texture management via Arena
• Real-time editing with immediate visual feedback

Performance Optimizations:

• Lazy texture creation (textures only created when needed)
• Modified flag tracking to avoid unnecessary updates
• Arena-based resource pooling to reduce allocation overhead
• Direct pixel data manipulation for fast editing operations

ROM Hacking Specific:

• SNES color format conversion (15-bit RGB to 8-bit indexed)
• Tile-based editing for 8x8 and 16x16 SNES tiles
• Palette index management for ROM palette editing
• Support for multiple graphics sheets (223 total in YAZE)

Definition at line 66 of file bitmap.h.

Constructor & Destructor Documentation

Bitmap() [1/5]

yaze::gfx::Bitmap::Bitmap ( )

default

Bitmap() [2/5]

yaze::gfx::Bitmap::Bitmap	(	int	width,
		int	height,
		int	depth,
		const std::vector< uint8_t > &	data
	)

Create a bitmap with the given dimensions and raw pixel data.

Parameters

width	Width in pixels (typically 128, 256, or 512 for SNES tilesheets)
height	Height in pixels (typically 32, 64, or 128 for SNES tilesheets)
depth	Color depth in bits per pixel (4, 8, or 16 for SNES)
data	Raw pixel data (indexed color values for SNES graphics)

Definition at line 47 of file bitmap.cc.

References Create(), data(), depth(), height(), and width().

Bitmap() [3/5]

yaze::gfx::Bitmap::Bitmap	(	int	width,
		int	height,
		int	depth,
		const std::vector< uint8_t > &	data,
		const SnesPalette &	palette
	)

Create a bitmap with the given dimensions, data, and SNES palette.

Parameters

width	Width in pixels
height	Height in pixels
depth	Color depth in bits per pixel
data	Raw pixel data (indexed color values)
palette	SNES palette for color mapping (15-bit RGB format)

Definition at line 53 of file bitmap.cc.

References Create(), data(), depth(), height(), palette(), SetPalette(), and width().

Bitmap() [4/5]

yaze::gfx::Bitmap::Bitmap

(

const Bitmap &

other

)

Copy constructor - creates a deep copy.

Definition at line 64 of file bitmap.cc.

References active_, yaze::gfx::Arena::AllocateSurface(), data_, depth_, yaze::gfx::Arena::Get(), yaze::gfx::GetSnesPixelFormat(), height_, yaze::gfx::kIndexed, pixel_data_, surface_, vector(), and width_.

Here is the call graph for this function:

Bitmap() [5/5]

yaze::gfx::Bitmap::Bitmap ( Bitmap &&  other )

noexcept

Move constructor.

Definition at line 110 of file bitmap.cc.

~Bitmap()

yaze::gfx::Bitmap::~Bitmap ( )

default

Destructor.

Member Function Documentation

operator=() [1/2]

Bitmap & yaze::gfx::Bitmap::operator=

(

const Bitmap &

other

)

Copy assignment operator.

Definition at line 85 of file bitmap.cc.

References active_, yaze::gfx::Arena::AllocateSurface(), data_, depth_, yaze::gfx::Arena::Get(), yaze::gfx::GetSnesPixelFormat(), height_, yaze::gfx::kIndexed, modified_, palette_, pixel_data_, surface_, vector(), and width_.

Here is the call graph for this function:

operator=() [2/2]

Bitmap & yaze::gfx::Bitmap::operator= ( Bitmap &&  other )

noexcept

Move assignment operator.

Definition at line 134 of file bitmap.cc.

References width_.

Create() [1/3]

void yaze::gfx::Bitmap::Create	(	int	width,
		int	height,
		int	depth,
		std::span< uint8_t >	data
	)

Create a bitmap with the given dimensions and data.

Definition at line 162 of file bitmap.cc.

References Create(), data(), data_, depth(), height(), and width().

Referenced by Bitmap(), Bitmap(), yaze::zelda3::Inventory::BuildTileset(), yaze::editor::Tile16Editor::CopyTile16ToClipboard(), Create(), Create(), yaze::zelda3::Inventory::Create(), yaze::zelda3::OverworldMapScreen::Create(), yaze::zelda3::TitleScreen::Create(), yaze::editor::GraphicsEditor::DecompressImportData(), yaze::gfx::BackgroundBuffer::DrawBackground(), yaze::editor::GraphicsEditor::DrawCgxImport(), yaze::gfx::BackgroundBuffer::DrawFloor(), yaze::editor::MessageEditor::DrawMessagePreview(), yaze::editor::GraphicsEditor::DrawScrImport(), yaze::editor::Tile16Editor::FlipTile16Horizontal(), yaze::editor::Tile16Editor::FlipTile16Vertical(), yaze::editor::MessageEditor::Initialize(), yaze::editor::Tile16Editor::Initialize(), yaze::editor::ScreenEditor::Load(), yaze::zelda3::LoadDungeonMapTile16(), yaze::LoadFontGraphics(), yaze::editor::Tile16Editor::LoadTile16FromScratchSpace(), yaze::editor::Tile16Editor::PasteTile16FromClipboard(), yaze::editor::Tile16Editor::PreviewPaletteChange(), yaze::editor::Tile16Editor::RegenerateTile16BitmapFromROM(), yaze::editor::Tile16Editor::RotateTile16(), yaze::test::RomDependentTestSuite::RunTile16EditorTest(), yaze::editor::Tile16Editor::SaveUndoState(), yaze::editor::Tile16Editor::SetCurrentTile(), yaze::editor::Tile16Editor::Undo(), and yaze::editor::Tile16Editor::UpdateTile16Edit().

Create() [2/3]

void yaze::gfx::Bitmap::Create	(	int	width,
		int	height,
		int	depth,
		const std::vector< uint8_t > &	data
	)

Create a bitmap with the given dimensions and data.

Definition at line 167 of file bitmap.cc.

References Create(), data(), depth(), height(), yaze::gfx::kIndexed, and width().

Create() [3/3]

void yaze::gfx::Bitmap::Create	(	int	width,
		int	height,
		int	depth,
		int	format,
		const std::vector< uint8_t > &	data
	)

Create a bitmap with the given dimensions, format, and data.

Create a bitmap with specified format and data.

Parameters

width	Width in pixels
height	Height in pixels
depth	Color depth in bits per pixel
format	Pixel format (0=indexed, 1=4BPP, 2=8BPP)
data	Raw pixel data

Performance Notes:

• Uses Arena for efficient surface allocation
• Copies data to avoid external pointer dependencies
• Validates data size against surface dimensions
• Sets active flag for rendering pipeline

Definition at line 186 of file bitmap.cc.

References active_, yaze::gfx::Arena::AllocateSurface(), ApplyStoredPalette(), data(), data_, depth(), depth_, yaze::gfx::SnesPalette::empty(), yaze::gfx::Arena::Get(), yaze::gfx::GetSnesPixelFormat(), height(), height_, palette_, pixel_data_, surface_, vector(), width(), and width_.

Reformat()

void yaze::gfx::Bitmap::Reformat

(

int

format

)

Reformat the bitmap to use a different pixel format.

Definition at line 228 of file bitmap.cc.

References active_, yaze::gfx::Arena::AllocateSurface(), data_, depth_, yaze::gfx::Arena::Get(), yaze::gfx::GetSnesPixelFormat(), height_, palette_, pixel_data_, SetPalette(), surface_, vector(), and width_.

Referenced by yaze::gui::CanvasContextMenu::RenderBitmapOperationsMenu().

CreateTexture()

void yaze::gfx::Bitmap::CreateTexture

(

)

Creates the underlying SDL_Texture to be displayed.

Definition at line 242 of file bitmap.cc.

References yaze::gfx::Arena::CREATE, yaze::gfx::Arena::Get(), and yaze::gfx::Arena::QueueTextureCommand().

Referenced by yaze::gfx::AtlasRenderer::AddBitmapWithBppOptimization(), and yaze::gfx::RenderTilesBatch().

Here is the call graph for this function:

UpdateTexture()

void yaze::gfx::Bitmap::UpdateTexture

(

)

Updates the underlying SDL_Texture when it already exists.

Definition at line 246 of file bitmap.cc.

References yaze::gfx::Arena::Get(), yaze::gfx::Arena::QueueTextureCommand(), and yaze::gfx::Arena::UPDATE.

Referenced by yaze::gui::Canvas::ConvertBitmapFormat(), and yaze::gui::Canvas::UpdateColorPainter().

Here is the call graph for this function:

QueueTextureUpdate()

void yaze::gfx::Bitmap::QueueTextureUpdate

(

IRenderer *

renderer

)

Queue texture update for batch processing (improved performance)

Parameters

renderer

SDL renderer for texture operations

Note

Use this for better performance when multiple textures need updating

UpdateTextureData()

void yaze::gfx::Bitmap::UpdateTextureData

(

)

Updates the texture data from the surface.

SetPalette() [1/2]

void yaze::gfx::Bitmap::SetPalette

(

const SnesPalette &

palette

)

Set the palette for the bitmap.

Definition at line 334 of file bitmap.cc.

References ApplyStoredPalette(), modified_, palette(), and palette_.

Referenced by ApplyPaletteByMetadata(), yaze::gui::CanvasUtils::ApplyPaletteGroup(), yaze::gui::PaletteEditorWidget::ApplyROMPalette(), Bitmap(), yaze::zelda3::Inventory::BuildTileset(), yaze::zelda3::TitleScreen::BuildTileset(), yaze::editor::Tile16Editor::CopyTile16ToClipboard(), yaze::zelda3::Inventory::Create(), yaze::zelda3::OverworldMapScreen::Create(), yaze::gfx::CreateTilemap(), yaze::editor::GraphicsEditor::DecompressImportData(), yaze::editor::GraphicsEditor::DrawCgxImport(), yaze::editor::ScreenEditor::DrawDungeonMapScreen(), yaze::editor::ScreenEditor::DrawDungeonMapsRoomGfx(), yaze::editor::MessageEditor::DrawMessagePreview(), yaze::editor::GraphicsEditor::DrawScrImport(), yaze::editor::Tile16Editor::FlipTile16Horizontal(), yaze::editor::Tile16Editor::FlipTile16Vertical(), yaze::editor::MessageEditor::Initialize(), yaze::editor::Tile16Editor::Initialize(), yaze::editor::ScreenEditor::Load(), yaze::zelda3::LoadDungeonMapTile16(), yaze::editor::Tile16Editor::LoadTile16FromScratchSpace(), yaze::zelda3::TitleScreen::LoadTitleScreen(), yaze::editor::Tile16Editor::PasteTile16FromClipboard(), Reformat(), yaze::editor::Tile16Editor::RefreshAllPalettes(), yaze::editor::OverworldEditor::RefreshTile16Blockset(), yaze::editor::Tile16Editor::RegenerateTile16BitmapFromROM(), yaze::editor::Tile16Editor::RotateTile16(), yaze::test::RomDependentTestSuite::RunTile16EditorTest(), yaze::editor::Tile16Editor::SaveUndoState(), yaze::editor::Tile16Editor::SetCurrentTile(), yaze::editor::Tile16Editor::Undo(), and yaze::editor::Tile16Editor::UpdateTile16Edit().

Here is the call graph for this function:

SetPaletteWithTransparent()

void yaze::gfx::Bitmap::SetPaletteWithTransparent	(	const SnesPalette &	palette,
		size_t	index,
		int	length = 7
	)

Set the palette with a transparent color.

Apply a sub-palette with automatic transparency for SNES rendering.

This method extracts a sub-palette from a larger palette and applies it to the SDL surface with proper SNES transparency handling.

SNES Transparency Model:

• The SNES hardware automatically treats palette index 0 as transparent
• This is a hardware feature, not stored in ROM data
• This method creates a transparent color 0 for proper SNES emulation

Usage:

• Extract 8-color sub-palette from position 'index' in source palette
• Color 0: Always set to transparent black (0,0,0,0)
• Colors 1-7: Taken from palette[index] through palette[index+6]
• If palette has fewer than 7 colors, fills with opaque black

Example: palette has colors [c0, c1, c2, c3, c4, c5, c6, c7, c8, ...] SetPaletteWithTransparent(palette, 0, 7) creates: [transparent_black, c0, c1, c2, c3, c4, c5, c6]

IMPORTANT: Source palette data is NOT modified

• The full palette is stored in palette_ member for reference
• Only the SDL surface palette is updated with the 8-color subset
• This allows proper palette editing while maintaining SNES rendering

Parameters

palette	Source palette (can be 7, 8, 64, 128, or 256 colors)
index	Start index in source palette (0-based)
length	Number of colors to extract (default 7, max 7)

Definition at line 403 of file bitmap.cc.

References InvalidatePaletteCache(), palette(), palette_, yaze::gfx::SnesPalette::size(), surface_, and vector().

Referenced by ApplyPaletteByMetadata(), yaze::gui::CanvasUtils::ApplyPaletteGroup(), yaze::gui::PaletteEditorWidget::ApplyROMPalette(), and yaze::editor::Tile16Editor::PreviewPaletteChange().

Here is the call graph for this function:

ApplyPaletteByMetadata()

void yaze::gfx::Bitmap::ApplyPaletteByMetadata	(	const SnesPalette &	palette,
		int	sub_palette_index = 0
	)

Apply palette using metadata-driven strategy Chooses between SetPalette and SetPaletteWithTransparent based on metadata.

Apply palette using metadata-driven strategy.

Uses bitmap metadata to determine the appropriate palette application method:

• palette_format == 0: Full palette (SetPalette)
• palette_format == 1: Sub-palette with transparent color 0 (SetPaletteWithTransparent)

This ensures correct rendering for different bitmap types:

• 3BPP graphics sheets → sub-palette with transparent
• 4BPP full palettes → full palette
• Mode 7 graphics → full palette

Parameters

palette	Source palette to apply
sub_palette_index	Index within palette for sub-palette extraction (default 0)

Definition at line 360 of file bitmap.cc.

References metadata_, palette(), yaze::gfx::Bitmap::BitmapMetadata::palette_format, SetPalette(), SetPaletteWithTransparent(), and vector().

Here is the call graph for this function:

ApplyStoredPalette()

void yaze::gfx::Bitmap::ApplyStoredPalette

(

)

Apply the stored palette to the surface (internal helper)

Apply the stored palette to the SDL surface.

This method applies the palette_ member to the SDL surface's palette.

IMPORTANT: Transparency handling

• ROM palette data does NOT have transparency flags set
• Transparency is only applied if explicitly marked (via set_transparent)
• For SNES rendering, use SetPaletteWithTransparent which creates transparent color 0 automatically
• This method preserves the transparency state of each color

Color format notes:

• SnesColor.rgb() returns 0-255 values stored in ImVec4 (unconventional!)
• We cast these directly to Uint8 for SDL

Definition at line 268 of file bitmap.cc.

References yaze::gfx::SnesPalette::empty(), InvalidatePaletteCache(), palette_, yaze::gfx::SnesPalette::size(), surface_, and vector().

Referenced by Create(), and SetPalette().

Here is the call graph for this function:

UpdateSurfacePixels()

void yaze::gfx::Bitmap::UpdateSurfacePixels

(

)

Update SDL surface with current pixel data from data_ vector Call this after modifying pixel data via mutable_data()

Definition at line 321 of file bitmap.cc.

References data_, surface_, and vector().

Referenced by yaze::zelda3::TitleScreen::RenderBG1Layer(), yaze::zelda3::TitleScreen::RenderBG2Layer(), yaze::zelda3::TitleScreen::RenderCompositeLayer(), and yaze::zelda3::OverworldMapScreen::RenderMapLayer().

Here is the call graph for this function:

SetPalette() [2/2]

void yaze::gfx::Bitmap::SetPalette

(

const std::vector< SDL_Color > &

palette

)

Set the palette using SDL colors.

Definition at line 464 of file bitmap.cc.

References palette(), yaze::gfx::SnesPalette::size(), surface_, and vector().

Here is the call graph for this function:

WriteToPixel()

void yaze::gfx::Bitmap::WriteToPixel	(	int	position,
		uint8_t	value
	)

Write a value to a pixel at the given position.

Definition at line 475 of file bitmap.cc.

References active_, data_, modified_, pixel_data_, surface_, and vector().

Referenced by yaze::editor::Tile16Editor::CommitChangesToOverworld(), yaze::gfx::anonymous_namespace{tilemap.cc}::ComposeAndPlaceTilePart(), yaze::editor::Tile16Editor::DrawToCurrentTile16(), yaze::editor::Tile16Editor::FillTile16WithTile8(), yaze::editor::Tile16Editor::FlipTile16Horizontal(), yaze::editor::Tile16Editor::FlipTile16Vertical(), yaze::editor::OverworldEditor::RenderUpdatedMapBitmap(), yaze::editor::Tile16Editor::RotateTile16(), yaze::editor::Tile16Editor::UpdateBlocksetBitmap(), and yaze::editor::Tile16Editor::UpdateOverworldTilemap().

Here is the call graph for this function:

WriteColor()

void yaze::gfx::Bitmap::WriteColor	(	int	position,
		const ImVec4 &	color
	)

Write a color to a pixel at the given position.

Definition at line 522 of file bitmap.cc.

References active_, yaze::gfx::ConvertRgbToSnes(), data_, modified_, pixel_data_, surface_, and vector().

Referenced by yaze::gui::Canvas::DrawTileOnBitmap().

Here is the call graph for this function:

SetPixel()

void yaze::gfx::Bitmap::SetPixel	(	int	x,
		int	y,
		const SnesColor &	color
	)

Set a pixel at the given x,y coordinates with SNES color.

Set a pixel at the given coordinates with SNES color.

Parameters

x	X coordinate (0 to width-1)
y	Y coordinate (0 to height-1)
color	SNES color (15-bit RGB format)

Note

Automatically finds closest palette index and marks bitmap as modified

Parameters

x	X coordinate (0 to width-1)
y	Y coordinate (0 to height-1)
color	SNES color (15-bit RGB format)

Performance Notes:

• Bounds checking for safety
• O(1) palette lookup using hash map cache (100x faster than linear search)
• Dirty region tracking for efficient texture updates
• Direct pixel data manipulation for speed

Optimizations Applied:

• Hash map palette lookup instead of linear search
• Dirty region tracking to minimize texture update area

Definition at line 617 of file bitmap.cc.

References yaze::gfx::Bitmap::DirtyRegion::AddPoint(), data_, dirty_region_, FindColorIndex(), height_, modified_, pixel_data_, surface_, vector(), and width_.

Referenced by yaze::cli::Tile16ProposalGenerator::GenerateDiff(), yaze::zelda3::DungeonObjectEditor::RenderLayerVisualization(), yaze::zelda3::DungeonObjectEditor::RenderSelectionHighlight(), and yaze::gfx::TEST_F().

Here is the call graph for this function:

Resize()

void yaze::gfx::Bitmap::Resize	(	int	new_width,
		int	new_height
	)

Resize the bitmap to new dimensions (preserves existing data)

Parameters

new_width	New width in pixels
new_height	New height in pixels

Note

Expands with black pixels, crops excess data

Definition at line 645 of file bitmap.cc.

References active_, yaze::gfx::Arena::AllocateSurface(), data_, depth_, yaze::gfx::Arena::Get(), yaze::gfx::GetSnesPixelFormat(), height_, yaze::gfx::kIndexed, modified_, pixel_data_, surface_, vector(), and width_.

Here is the call graph for this function:

InvalidatePaletteCache()

void yaze::gfx::Bitmap::InvalidatePaletteCache

(

)

Invalidate the palette lookup cache (call when palette changes)

Note

This must be called whenever the palette is modified to maintain cache consistency

This must be called whenever the palette is modified to maintain cache consistency

Performance Notes:

• Clears existing cache to force rebuild
• Rebuilds cache with current palette colors
• O(n) operation but only called when palette changes

Definition at line 715 of file bitmap.cc.

References color_to_index_cache_, HashColor(), palette_, yaze::gfx::SnesPalette::size(), and vector().

Referenced by ApplyStoredPalette(), and SetPaletteWithTransparent().

Here is the call graph for this function:

FindColorIndex()

uint8_t yaze::gfx::Bitmap::FindColorIndex

(

const SnesColor &

color

)

Find color index in palette using optimized hash map lookup.

Parameters

color

SNES color to find index for

Returns

Palette index (0 if not found)

Note

O(1) lookup time vs O(n) linear search

Parameters

color

SNES color to find index for

Returns

Palette index (0 if not found)

Note

O(1) lookup time vs O(n) linear search

Performance Notes:

• Hash map lookup for O(1) performance
• 100x faster than linear search for large palettes
• Falls back to index 0 if color not found

Definition at line 736 of file bitmap.cc.

References color_to_index_cache_, HashColor(), yaze::gfx::SnesColor::rgb(), and vector().

Referenced by SetPixel(), and yaze::gfx::TEST_F().

Here is the call graph for this function:

ValidateDataSurfaceSync()

bool yaze::gfx::Bitmap::ValidateDataSurfaceSync

(

)

Validate that bitmap data and surface pixels are synchronized.

Returns

true if synchronized, false if there are issues

Note

This method helps debug surface synchronization problems

Definition at line 763 of file bitmap.cc.

References data_, surface_, and vector().

Here is the call graph for this function:

Get8x8Tile()

void yaze::gfx::Bitmap::Get8x8Tile	(	int	tile_index,
		int	x,
		int	y,
		std::vector< uint8_t > &	tile_data,
		int &	tile_data_offset
	)

Extract an 8x8 tile from the bitmap (SNES standard tile size)

Parameters

tile_index	Index of the tile in the tilesheet
x	X offset within the tile (0-7)
y	Y offset within the tile (0-7)
tile_data	Output buffer for tile pixel data (64 bytes for 8x8)
tile_data_offset	Current offset in tile_data buffer

Note

Used for ROM tile editing and tile extraction

Definition at line 566 of file bitmap.cc.

References data_, height_, vector(), and width_.

Here is the call graph for this function:

Get16x16Tile()

void yaze::gfx::Bitmap::Get16x16Tile	(	int	tile_x,
		int	tile_y,
		std::vector< uint8_t > &	tile_data,
		int &	tile_data_offset
	)

Extract a 16x16 tile from the bitmap (SNES metatile size)

Parameters

tile_x	X coordinate of tile in tilesheet
tile_y	Y coordinate of tile in tilesheet
tile_data	Output buffer for tile pixel data (256 bytes for 16x16)
tile_data_offset	Current offset in tile_data buffer

Note

Used for ROM metatile editing and large tile extraction

Definition at line 582 of file bitmap.cc.

References data_, vector(), and width_.

Referenced by yaze::editor::ScreenEditor::DrawDungeonMapScreen(), and yaze::gfx::UpdateTile16().

Here is the call graph for this function:

palette()

const SnesPalette & yaze::gfx::Bitmap::palette ( ) const

inline

Definition at line 277 of file bitmap.h.

References palette_.

Referenced by yaze::gfx::AtlasRenderer::AddBitmapWithBppOptimization(), ApplyPaletteByMetadata(), yaze::gui::PaletteEditorWidget::ApplyROMPalette(), Bitmap(), yaze::editor::Tile16Editor::CopyTile16ToClipboard(), yaze::editor::ScreenEditor::DrawDungeonMapScreen(), yaze::editor::ScreenEditor::DrawDungeonMapsRoomGfx(), yaze::editor::Tile16Editor::Initialize(), yaze::editor::Tile16Editor::PasteTile16FromClipboard(), yaze::gui::CanvasContextMenu::RenderPaletteOperationsMenu(), yaze::gfx::RenderTilesBatch(), yaze::editor::Tile16Editor::SaveTile16ToScratchSpace(), yaze::editor::Tile16Editor::SaveUndoState(), SetPalette(), SetPalette(), SetPaletteWithTransparent(), yaze::gui::Canvas::ShowBppAnalysis(), yaze::gui::Canvas::ShowBppConversionDialog(), yaze::gui::Canvas::ShowBppFormatSelector(), yaze::gui::PaletteEditorWidget::ShowColorAnalysis(), and yaze::editor::Tile16Editor::Undo().

mutable_palette()

SnesPalette * yaze::gfx::Bitmap::mutable_palette ( )

inline

Definition at line 278 of file bitmap.h.

References palette_.

Referenced by yaze::gui::Canvas::DrawContextMenu(), yaze::editor::MessageEditor::Initialize(), yaze::gui::CanvasContextMenu::RenderPaletteOperationsMenu(), and yaze::gui::Canvas::ShowPaletteEditor().

metadata() [1/2]

BitmapMetadata & yaze::gfx::Bitmap::metadata ( )

inline

Definition at line 279 of file bitmap.h.

References metadata_.

Referenced by yaze::zelda3::OverworldMapScreen::Create(), yaze::zelda3::TitleScreen::Create(), and yaze::gui::CanvasContextMenu::RenderPaletteOperationsMenu().

metadata() [2/2]

const BitmapMetadata & yaze::gfx::Bitmap::metadata ( ) const

inline

Definition at line 280 of file bitmap.h.

References metadata_.

width()

int yaze::gfx::Bitmap::width ( ) const

inline

Definition at line 282 of file bitmap.h.

References width_.

Referenced by yaze::gfx::AtlasRenderer::AddBitmap(), yaze::gfx::AtlasRenderer::AddBitmapWithBppOptimization(), Bitmap(), Bitmap(), yaze::gui::BppComparisonTool::CalculateMetrics(), yaze::editor::Tile16Editor::CommitChangesToOverworld(), yaze::gfx::anonymous_namespace{tilemap.cc}::ComposeAndPlaceTilePart(), yaze::gfx::ComposeTile16(), yaze::gui::Canvas::ConvertBitmapFormat(), Create(), Create(), Create(), yaze::gfx::BackgroundBuffer::DrawBackground(), yaze::gui::Canvas::DrawBitmap(), yaze::gui::Canvas::DrawBitmap(), yaze::gui::Canvas::DrawBitmap(), yaze::gui::Canvas::DrawBitmapGroup(), yaze::gui::DrawBitmapViewer(), yaze::editor::ScreenEditor::DrawDungeonMapScreen(), yaze::editor::ScreenEditor::DrawDungeonMapsRoomGfx(), yaze::gfx::BackgroundBuffer::DrawFloor(), yaze::gui::Canvas::DrawTilemapPainter(), yaze::gui::CanvasInteractionHandler::DrawTilemapPainter(), yaze::gui::Canvas::DrawTileOnBitmap(), yaze::zelda3::ObjectDrawer::DrawTileToBitmap(), yaze::gui::BppComparisonTool::GenerateComparisons(), yaze::gui::Canvas::GetCurrentBppFormat(), yaze::gfx::GetTilemapData(), yaze::editor::Tile16Editor::Initialize(), yaze::editor::Tile16Editor::LoadTile8(), yaze::gfx::ModifyTile16(), yaze::gfx::AtlasRenderer::PackBitmap(), yaze::gfx::TextureAtlas::PackBitmap(), yaze::gui::CanvasModals::RenderAdvancedPropertiesModal(), yaze::gui::BppFormatUI::RenderAnalysisPanel(), yaze::gui::RenderBitmapGroup(), yaze::gui::RenderBitmapOnCanvas(), yaze::gui::RenderBitmapOnCanvas(), yaze::gui::RenderBitmapOnCanvas(), yaze::gui::CanvasContextMenu::RenderBitmapOperationsMenu(), yaze::gui::BppFormatUI::RenderConversionPreview(), yaze::gui::BppFormatUI::RenderFormatSelector(), yaze::zelda3::DungeonObjectEditor::RenderLayerVisualization(), yaze::gui::CanvasModals::RenderScalingControlsModal(), yaze::zelda3::DungeonObjectEditor::RenderSelectionHighlight(), yaze::gfx::RenderTile16(), yaze::editor::Tile16Editor::SetCurrentTile(), yaze::gui::Canvas::SetZoomToFit(), yaze::gui::Canvas::ShowAdvancedCanvasProperties(), yaze::gui::PaletteEditorWidget::ShowColorAnalysis(), yaze::gui::Canvas::ShowScalingControls(), yaze::gui::TableCanvasPipeline(), yaze::gfx::AtlasRenderer::UpdateBitmap(), yaze::editor::Tile16Editor::UpdateBlocksetBitmap(), yaze::editor::Tile16Editor::UpdateOverworldTilemap(), yaze::gui::BppConversionDialog::UpdatePreview(), yaze::gfx::UpdateTile16(), and yaze::editor::Tile16Editor::UpdateTile16Edit().

height()

int yaze::gfx::Bitmap::height ( ) const

inline

Definition at line 283 of file bitmap.h.

References height_.

Referenced by yaze::gfx::AtlasRenderer::AddBitmap(), yaze::gfx::AtlasRenderer::AddBitmapWithBppOptimization(), Bitmap(), Bitmap(), yaze::gui::BppComparisonTool::CalculateMetrics(), yaze::gui::Canvas::ConvertBitmapFormat(), Create(), Create(), Create(), yaze::gui::Canvas::DrawBitmap(), yaze::gui::Canvas::DrawBitmap(), yaze::gui::Canvas::DrawBitmap(), yaze::gui::Canvas::DrawBitmapGroup(), yaze::gui::DrawBitmapViewer(), yaze::gfx::BackgroundBuffer::DrawFloor(), yaze::gui::Canvas::DrawTilemapPainter(), yaze::gui::CanvasInteractionHandler::DrawTilemapPainter(), yaze::zelda3::ObjectDrawer::DrawTileToBitmap(), yaze::gui::BppComparisonTool::GenerateComparisons(), yaze::gui::Canvas::GetCurrentBppFormat(), yaze::gfx::GetTilemapData(), yaze::editor::Tile16Editor::Initialize(), yaze::editor::Tile16Editor::LoadTile8(), yaze::gfx::AtlasRenderer::PackBitmap(), yaze::gfx::TextureAtlas::PackBitmap(), yaze::gui::CanvasModals::RenderAdvancedPropertiesModal(), yaze::gui::BppFormatUI::RenderAnalysisPanel(), yaze::gui::RenderBitmapGroup(), yaze::gui::RenderBitmapOnCanvas(), yaze::gui::RenderBitmapOnCanvas(), yaze::gui::RenderBitmapOnCanvas(), yaze::gui::CanvasContextMenu::RenderBitmapOperationsMenu(), yaze::gui::BppFormatUI::RenderConversionPreview(), yaze::gui::BppFormatUI::RenderFormatSelector(), yaze::zelda3::DungeonObjectEditor::RenderLayerVisualization(), yaze::gui::CanvasModals::RenderScalingControlsModal(), yaze::zelda3::DungeonObjectEditor::RenderSelectionHighlight(), yaze::gfx::RenderTile16(), yaze::gui::Canvas::SetZoomToFit(), yaze::gui::Canvas::ShowAdvancedCanvasProperties(), yaze::gui::PaletteEditorWidget::ShowColorAnalysis(), yaze::gui::Canvas::ShowScalingControls(), yaze::gui::TableCanvasPipeline(), yaze::gfx::AtlasRenderer::UpdateBitmap(), and yaze::gui::BppConversionDialog::UpdatePreview().

depth()

int yaze::gfx::Bitmap::depth ( ) const

inline

Definition at line 284 of file bitmap.h.

References depth_.

Referenced by yaze::gfx::AtlasRenderer::AddBitmapWithBppOptimization(), Bitmap(), Bitmap(), Create(), Create(), Create(), yaze::gui::BppComparisonTool::GenerateComparisons(), yaze::editor::Tile16Editor::Initialize(), yaze::gui::BppFormatUI::RenderConversionPreview(), and yaze::gui::BppConversionDialog::UpdatePreview().

size()

auto yaze::gfx::Bitmap::size ( ) const

inline

Definition at line 285 of file bitmap.h.

References data_.

Referenced by yaze::editor::Tile16Editor::CommitChangesToOverworld(), yaze::editor::ScreenEditor::DrawDungeonMapsRoomGfx(), yaze::editor::Tile16Editor::DrawToCurrentTile16(), yaze::editor::Tile16Editor::FillTile16WithTile8(), yaze::editor::Tile16Editor::FlipTile16Horizontal(), yaze::editor::Tile16Editor::FlipTile16Vertical(), yaze::editor::Tile16Editor::IsTile16Valid(), yaze::editor::Tile16Editor::LoadTile8(), yaze::editor::OverworldEditor::RenderUpdatedMapBitmap(), yaze::editor::Tile16Editor::RotateTile16(), yaze::editor::Tile16Editor::SetCurrentTile(), yaze::editor::Tile16Editor::UpdateBlocksetBitmap(), yaze::editor::Tile16Editor::UpdateOverworldTilemap(), and yaze::editor::Tile16Editor::ValidateTile16Data().

data()

const uint8_t * yaze::gfx::Bitmap::data ( ) const

inline

Definition at line 286 of file bitmap.h.

References data_.

Referenced by Bitmap(), Bitmap(), yaze::editor::Tile16Editor::CommitChangesToOverworld(), Create(), Create(), Create(), yaze::editor::ScreenEditor::DrawDungeonMapsRoomGfx(), yaze::editor::Tile16Editor::DrawToCurrentTile16(), yaze::editor::Tile16Editor::FlipTile16Horizontal(), yaze::editor::Tile16Editor::FlipTile16Vertical(), yaze::editor::Tile16Editor::LoadTile8(), yaze::editor::Tile16Editor::RotateTile16(), set_data(), yaze::editor::Tile16Editor::SetCurrentTile(), yaze::editor::Tile16Editor::UpdateBlocksetBitmap(), and yaze::editor::Tile16Editor::UpdateOverworldTilemap().

mutable_data()

std::vector< uint8_t > & yaze::gfx::Bitmap::mutable_data ( )

inline

Definition at line 287 of file bitmap.h.

References data_.

Referenced by yaze::zelda3::TitleScreen::BuildTileset(), yaze::editor::Tile16Editor::ClearTile16(), yaze::gfx::BackgroundBuffer::DrawBackground(), yaze::zelda3::ObjectDrawer::DrawTileToBitmap(), yaze::zelda3::TitleScreen::RenderBG1Layer(), yaze::zelda3::TitleScreen::RenderBG2Layer(), yaze::zelda3::TitleScreen::RenderCompositeLayer(), yaze::zelda3::OverworldMapScreen::RenderMapLayer(), and yaze::editor::Tile16Editor::UpdateTile16Edit().

surface()

SDL_Surface * yaze::gfx::Bitmap::surface ( ) const

inline

Definition at line 288 of file bitmap.h.

References surface_.

Referenced by yaze::gfx::CreateTilemap(), yaze::gfx::BackgroundBuffer::DrawBackground(), yaze::editor::MessageEditor::DrawMessagePreview(), yaze::editor::OverworldEditor::LoadGraphics(), yaze::gui::CanvasContextMenu::RenderBitmapOperationsMenu(), yaze::gfx::RenderTilesBatch(), yaze::gfx::SDL2Renderer::UpdateTexture(), and yaze::gfx::UpdateTilemap().

texture()

TextureHandle yaze::gfx::Bitmap::texture ( ) const

inline

Definition at line 289 of file bitmap.h.

References texture_.

Referenced by yaze::gfx::AtlasRenderer::AddBitmap(), yaze::gfx::AtlasRenderer::AddBitmapWithBppOptimization(), yaze::gui::Canvas::DrawBitmapGroup(), yaze::gui::DrawBitmapViewer(), yaze::gui::Canvas::DrawTilemapPainter(), yaze::gui::CanvasInteractionHandler::DrawTilemapPainter(), yaze::gui::Canvas::DrawTilePainter(), yaze::gui::CanvasInteractionHandler::DrawTilePainter(), yaze::gui::HandleTilePaintWithPreview(), yaze::editor::OverworldEditor::RefreshTile16Blockset(), yaze::gui::RenderBitmapGroup(), yaze::gui::RenderBitmapOnCanvas(), yaze::gui::RenderBitmapOnCanvas(), yaze::gui::RenderBitmapOnCanvas(), yaze::gui::BppComparisonTool::RenderComparisonGrid(), yaze::gui::BppFormatUI::RenderConversionPreview(), yaze::gui::BppConversionDialog::RenderPreview(), yaze::gfx::RenderTilesBatch(), set_texture(), yaze::gfx::AtlasRenderer::UpdateBitmap(), yaze::gfx::UpdateTile16(), and yaze::gfx::UpdateTilemap().

vector()

const std::vector< uint8_t > & yaze::gfx::Bitmap::vector ( ) const

inline

Definition at line 290 of file bitmap.h.

References data_.

Referenced by yaze::gfx::AtlasRenderer::AddBitmap(), yaze::gfx::AtlasRenderer::AddBitmapWithBppOptimization(), ApplyPaletteByMetadata(), ApplyStoredPalette(), Bitmap(), yaze::gui::Canvas::ConvertBitmapFormat(), Create(), yaze::editor::OverworldEditor::DrawOverworldEdits(), FindColorIndex(), yaze::gui::BppComparisonTool::GenerateComparisons(), Get16x16Tile(), Get8x8Tile(), yaze::gui::Canvas::GetCurrentBppFormat(), yaze::gfx::GetTilemapData(), HashColor(), yaze::editor::Tile16Editor::Initialize(), InvalidatePaletteCache(), operator=(), yaze::editor::Tile16Editor::PasteTile16FromClipboard(), yaze::editor::Tile16Editor::PreviewPaletteChange(), Reformat(), yaze::gui::BppFormatUI::RenderAnalysisPanel(), yaze::zelda3::TitleScreen::RenderBG1Layer(), yaze::zelda3::TitleScreen::RenderBG2Layer(), yaze::zelda3::TitleScreen::RenderCompositeLayer(), yaze::gui::BppFormatUI::RenderConversionPreview(), yaze::gui::BppFormatUI::RenderFormatSelector(), yaze::zelda3::OverworldMapScreen::RenderMapLayer(), yaze::gfx::RenderTile(), yaze::gfx::RenderTile16(), Resize(), yaze::editor::Tile16Editor::SaveTile16ToScratchSpace(), yaze::editor::Tile16Editor::SaveUndoState(), set_data(), SetPalette(), SetPaletteWithTransparent(), SetPixel(), yaze::gui::PaletteEditorWidget::ShowColorAnalysis(), yaze::editor::Tile16Editor::Undo(), yaze::gui::BppConversionDialog::UpdatePreview(), UpdateSurfacePixels(), yaze::editor::Tile16Editor::UpdateTile16Edit(), ValidateDataSurfaceSync(), WriteColor(), and WriteToPixel().

at()

uint8_t yaze::gfx::Bitmap::at ( int  i ) const

inline

Definition at line 291 of file bitmap.h.

References data_.

modified()

bool yaze::gfx::Bitmap::modified ( ) const

inline

Definition at line 292 of file bitmap.h.

References modified_.

Referenced by yaze::editor::Tile16Editor::CommitChangesToBlockset(), and set_modified().

is_active()

bool yaze::gfx::Bitmap::is_active ( ) const

inline

Definition at line 293 of file bitmap.h.

References active_.

Referenced by yaze::gfx::AtlasRenderer::AddBitmap(), yaze::gfx::AtlasRenderer::AddBitmapWithBppOptimization(), yaze::editor::OverworldEditor::CheckForCurrentMap(), yaze::editor::Tile16Editor::ClearTile16(), yaze::editor::Tile16Editor::CommitChangesToOverworld(), yaze::gfx::CreateTilemap(), yaze::gfx::BackgroundBuffer::DrawBackground(), yaze::gui::Canvas::DrawBitmap(), yaze::gui::Canvas::DrawBitmap(), yaze::gui::Canvas::DrawBitmap(), yaze::gui::Canvas::DrawBitmapGroup(), yaze::gfx::BackgroundBuffer::DrawFloor(), yaze::editor::MessageEditor::DrawMessagePreview(), yaze::editor::OverworldEditor::DrawOverworldEdits(), yaze::editor::OverworldEditor::DrawTile16Selector(), yaze::gui::Canvas::DrawTilemapPainter(), yaze::gui::CanvasInteractionHandler::DrawTilemapPainter(), yaze::gui::Canvas::DrawTilePainter(), yaze::gui::CanvasInteractionHandler::DrawTilePainter(), yaze::zelda3::ObjectDrawer::DrawTileToBitmap(), yaze::editor::Tile16Editor::DrawToCurrentTile16(), yaze::editor::Tile16Editor::FlipTile16Horizontal(), yaze::editor::Tile16Editor::FlipTile16Vertical(), yaze::gfx::GetTilemapData(), yaze::gui::HandleTilemapPaint(), yaze::gui::HandleTilePaintWithPreview(), yaze::editor::OverworldEditor::LoadGraphics(), yaze::editor::Tile16Editor::LoadTile8(), yaze::gfx::TextureAtlas::PackBitmap(), yaze::editor::Tile16Editor::PreviewPaletteChange(), yaze::editor::Tile16Editor::RefreshAllPalettes(), yaze::editor::OverworldEditor::RefreshTile16Blockset(), yaze::gui::TileSelectorWidget::Render(), yaze::gui::RenderBitmapGroup(), yaze::gui::RenderBitmapOnCanvas(), yaze::gui::RenderBitmapOnCanvas(), yaze::gui::RenderBitmapOnCanvas(), yaze::gfx::RenderTile(), yaze::gfx::RenderTile16(), yaze::gfx::RenderTilesBatch(), yaze::editor::OverworldEditor::RenderUpdatedMapBitmap(), yaze::editor::Tile16Editor::RotateTile16(), yaze::editor::Tile16Editor::SaveTile16ToROM(), yaze::editor::Tile16Editor::SaveUndoState(), yaze::editor::Tile16Editor::set_palette(), yaze::gui::Canvas::SetZoomToFit(), yaze::gui::PaletteEditorWidget::ShowColorAnalysis(), yaze::gui::TableCanvasPipeline(), yaze::editor::Tile16Editor::UpdateBlocksetBitmap(), yaze::editor::Tile16Editor::UpdateOverworldTilemap(), yaze::gfx::UpdateTile16(), yaze::editor::Tile16Editor::UpdateTile16Edit(), and yaze::gfx::UpdateTilemap().

set_active()

void yaze::gfx::Bitmap::set_active ( bool  active )

inline

Definition at line 294 of file bitmap.h.

References active_.

Referenced by yaze::zelda3::OverworldMapScreen::Create(), and yaze::zelda3::TitleScreen::LoadTitleScreen().

set_data()

void yaze::gfx::Bitmap::set_data

(

const std::vector< uint8_t > &

data

)

Definition at line 743 of file bitmap.cc.

References data(), data_, modified_, pixel_data_, surface_, and vector().

Referenced by yaze::gui::Canvas::ConvertBitmapFormat(), yaze::editor::ScreenEditor::DrawDungeonMapScreen(), yaze::editor::MessageEditor::DrawMessagePreview(), yaze::gfx::UpdateTile16(), and yaze::gfx::UpdateTilemap().

Here is the call graph for this function:

set_modified()

void yaze::gfx::Bitmap::set_modified ( bool  modified )

inline

Definition at line 296 of file bitmap.h.

References modified(), and modified_.

Referenced by yaze::gui::CanvasUtils::ApplyPaletteGroup(), yaze::editor::Tile16Editor::ClearTile16(), yaze::editor::Tile16Editor::CommitChangesToOverworld(), yaze::zelda3::ObjectDrawer::DrawTileToBitmap(), yaze::editor::Tile16Editor::DrawToCurrentTile16(), yaze::editor::Tile16Editor::FillTile16WithTile8(), yaze::editor::Tile16Editor::FlipTile16Horizontal(), yaze::editor::Tile16Editor::FlipTile16Vertical(), yaze::editor::Tile16Editor::RefreshAllPalettes(), yaze::editor::Tile16Editor::RefreshTile16Blockset(), yaze::editor::OverworldEditor::RenderUpdatedMapBitmap(), yaze::editor::Tile16Editor::RotateTile16(), yaze::editor::Tile16Editor::UpdateBlocksetBitmap(), and yaze::editor::Tile16Editor::UpdateOverworldTilemap().

Here is the call graph for this function:

set_texture()

void yaze::gfx::Bitmap::set_texture ( TextureHandle  texture )

inline

Definition at line 297 of file bitmap.h.

References texture(), and texture_.

Here is the call graph for this function:

HashColor()

uint32_t yaze::gfx::Bitmap::HashColor ( const ImVec4 &  color )

staticprivate

Hash a color for cache lookup.

Parameters

color

ImVec4 color to hash

Returns

32-bit hash value

Parameters

color

ImVec4 color to hash

Returns

32-bit hash value

Performance Notes:

• Simple hash combining RGBA components
• Fast integer operations for cache key generation
• Collision-resistant for typical SNES palette sizes

Definition at line 695 of file bitmap.cc.

References vector().

Referenced by FindColorIndex(), and InvalidatePaletteCache().

Here is the call graph for this function:

Member Data Documentation

width_

int yaze::gfx::Bitmap::width_ = 0

private

Definition at line 301 of file bitmap.h.

Referenced by Bitmap(), Create(), Get16x16Tile(), Get8x8Tile(), operator=(), operator=(), Reformat(), Resize(), SetPixel(), and width().

height_

int yaze::gfx::Bitmap::height_ = 0

private

Definition at line 302 of file bitmap.h.

Referenced by Bitmap(), Create(), Get8x8Tile(), height(), operator=(), Reformat(), Resize(), and SetPixel().

depth_

int yaze::gfx::Bitmap::depth_ = 0

private

Definition at line 303 of file bitmap.h.

Referenced by Bitmap(), Create(), depth(), operator=(), Reformat(), and Resize().

active_

bool yaze::gfx::Bitmap::active_ = false

private

Definition at line 305 of file bitmap.h.

Referenced by Bitmap(), Create(), is_active(), operator=(), Reformat(), Resize(), set_active(), WriteColor(), and WriteToPixel().

modified_

bool yaze::gfx::Bitmap::modified_ = false

private

Definition at line 306 of file bitmap.h.

Referenced by modified(), operator=(), Resize(), set_data(), set_modified(), SetPalette(), SetPixel(), WriteColor(), and WriteToPixel().

texture_pixels

void* yaze::gfx::Bitmap::texture_pixels = nullptr

private

Definition at line 309 of file bitmap.h.

pixel_data_

uint8_t* yaze::gfx::Bitmap::pixel_data_ = nullptr

private

Definition at line 312 of file bitmap.h.

Referenced by Bitmap(), Create(), operator=(), Reformat(), Resize(), set_data(), SetPixel(), WriteColor(), and WriteToPixel().

palette_

gfx::SnesPalette yaze::gfx::Bitmap::palette_

private

Definition at line 315 of file bitmap.h.

Referenced by ApplyStoredPalette(), Create(), InvalidatePaletteCache(), mutable_palette(), operator=(), palette(), Reformat(), SetPalette(), and SetPaletteWithTransparent().

metadata_

BitmapMetadata yaze::gfx::Bitmap::metadata_

private

Definition at line 318 of file bitmap.h.

Referenced by ApplyPaletteByMetadata(), metadata(), and metadata().

data_

std::vector<uint8_t> yaze::gfx::Bitmap::data_

private

Definition at line 321 of file bitmap.h.

Referenced by at(), Bitmap(), Create(), Create(), data(), Get16x16Tile(), Get8x8Tile(), mutable_data(), operator=(), Reformat(), Resize(), set_data(), SetPixel(), size(), UpdateSurfacePixels(), ValidateDataSurfaceSync(), vector(), WriteColor(), and WriteToPixel().

surface_

SDL_Surface* yaze::gfx::Bitmap::surface_ = nullptr

private

Definition at line 324 of file bitmap.h.

Referenced by ApplyStoredPalette(), Bitmap(), Create(), operator=(), Reformat(), Resize(), set_data(), SetPalette(), SetPaletteWithTransparent(), SetPixel(), surface(), UpdateSurfacePixels(), ValidateDataSurfaceSync(), WriteColor(), and WriteToPixel().

texture_

TextureHandle yaze::gfx::Bitmap::texture_ = nullptr

private

Definition at line 327 of file bitmap.h.

Referenced by set_texture(), and texture().

color_to_index_cache_

std::unordered_map<uint32_t, uint8_t> yaze::gfx::Bitmap::color_to_index_cache_

private

Definition at line 330 of file bitmap.h.

Referenced by FindColorIndex(), and InvalidatePaletteCache().

dirty_region_

struct yaze::gfx::Bitmap::DirtyRegion yaze::gfx::Bitmap::dirty_region_

private

Referenced by SetPixel().

---

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

• src/app/gfx/core/bitmap.h
• src/app/gfx/core/bitmap.cc