Comprehensive graphics optimization system for YAZE ROM hacking. More...

#include <graphics_optimizer.h>

Public Member Functions
void	Initialize ()
	Initialize the graphics optimizer.

OptimizationResult	OptimizeSheet (const std::vector< uint8_t > &sheet_data, int sheet_id, const SnesPalette &palette, OptimizationStrategy strategy=OptimizationStrategy::kBalanced)
	Optimize a single graphics sheet.

OptimizationResult	OptimizeSheets (const std::unordered_map< int, std::vector< uint8_t > > &sheets, const std::unordered_map< int, SnesPalette > &palettes, OptimizationStrategy strategy=OptimizationStrategy::kBalanced)
	Optimize multiple graphics sheets.

SheetOptimizationData	AnalyzeSheet (const std::vector< uint8_t > &sheet_data, int sheet_id, const SnesPalette &palette)
	Analyze graphics sheet for optimization opportunities.

std::unordered_map< int, SheetOptimizationData >	GetOptimizationRecommendations (const std::unordered_map< int, std::vector< uint8_t > > &sheets, const std::unordered_map< int, SnesPalette > &palettes)
	Get optimization recommendations for all sheets.

OptimizationResult	ApplyOptimizations (const std::unordered_map< int, SheetOptimizationData > &recommendations, std::unordered_map< int, std::vector< uint8_t > > &sheets, std::unordered_map< int, SnesPalette > &palettes)
	Apply optimization recommendations.

std::unordered_map< std::string, double >	GetOptimizationStats () const
	Get optimization statistics.

void	ClearCache ()
	Clear optimization cache.

void	SetOptimizationParameters (float max_quality_loss=0.1f, size_t min_memory_savings=1024, float performance_threshold=0.05f)
	Set optimization parameters.

Static Public Member Functions
static GraphicsOptimizer &	Get ()

Private Member Functions
	GraphicsOptimizer ()=default

	~GraphicsOptimizer ()=default

BppFormat	DetermineOptimalFormat (const std::vector< uint8_t > &data, const SnesPalette &palette, OptimizationStrategy strategy)

float	CalculateQualityLoss (BppFormat from_format, BppFormat to_format, const std::vector< uint8_t > &data)

size_t	CalculateMemorySavings (BppFormat from_format, BppFormat to_format, const std::vector< uint8_t > &data)

float	CalculatePerformanceGain (BppFormat from_format, BppFormat to_format)

bool	ShouldOptimize (const SheetOptimizationData &data, OptimizationStrategy strategy)

std::string	GenerateOptimizationReason (const SheetOptimizationData &data)

int	CountUsedColors (const std::vector< uint8_t > &data, const SnesPalette &palette)

float	CalculateColorEfficiency (const std::vector< uint8_t > &data, const SnesPalette &palette)

std::vector< int >	AnalyzeColorDistribution (const std::vector< uint8_t > &data)

std::string	GenerateCacheKey (const std::vector< uint8_t > &data, int sheet_id)

void	UpdateOptimizationStats (const std::string &operation, double value)

Private Attributes
float	max_quality_loss_

size_t	min_memory_savings_

float	performance_threshold_

std::unordered_map< std::string, double >	optimization_stats_

std::unordered_map< std::string, SheetOptimizationData >	optimization_cache_

Detailed Description

Comprehensive graphics optimization system for YAZE ROM hacking.

The GraphicsOptimizer provides intelligent optimization of graphics data for Link to the Past ROM hacking workflows, balancing memory usage, performance, and visual quality.

Key Features:

Intelligent BPP format optimization based on actual color usage
Graphics sheet analysis and conversion recommendations
Memory usage optimization with quality preservation
Performance optimization through atlas rendering
Batch processing for multiple graphics sheets
Quality analysis and loss estimation

Optimization Strategies:

Memory Optimized: Minimize ROM size by using optimal BPP formats
Performance Optimized: Maximize rendering speed through atlas optimization
Quality Optimized: Preserve visual fidelity while optimizing
Balanced: Optimal balance of memory, performance, and quality

ROM Hacking Specific:

SNES-specific optimization patterns
Graphics sheet format analysis and conversion tracking
Palette optimization based on actual usage
Integration with existing YAZE graphics pipeline

Definition at line 95 of file graphics_optimizer.h.

Constructor & Destructor Documentation

◆ GraphicsOptimizer()

yaze::gfx::GraphicsOptimizer::GraphicsOptimizer ( )

privatedefault

◆ ~GraphicsOptimizer()

yaze::gfx::GraphicsOptimizer::~GraphicsOptimizer ( )

privatedefault

Member Function Documentation

◆ Get()

GraphicsOptimizer & yaze::gfx::GraphicsOptimizer::Get ( )

static

Definition at line 13 of file graphics_optimizer.cc.

◆ Initialize()

void yaze::gfx::GraphicsOptimizer::Initialize ( )

Initialize the graphics optimizer.

Definition at line 18 of file graphics_optimizer.cc.

References max_quality_loss_, min_memory_savings_, optimization_cache_, optimization_stats_, and performance_threshold_.

◆ OptimizeSheet()

OptimizationResult yaze::gfx::GraphicsOptimizer::OptimizeSheet	(	const std::vector< uint8_t > &	sheet_data,
		int	sheet_id,
		const SnesPalette &	palette,
		OptimizationStrategy	strategy = OptimizationStrategy::kBalanced )

Optimize a single graphics sheet.

Parameters

sheet_data	Graphics sheet data
sheet_id	Sheet identifier
palette	Sheet palette
strategy	Optimization strategy

Returns: Optimization result

Definition at line 27 of file graphics_optimizer.cc.

References AnalyzeSheet(), CalculatePerformanceGain(), CalculateQualityLoss(), yaze::gfx::SheetOptimizationData::current_format, yaze::gfx::SheetOptimizationData::current_size, yaze::gfx::SheetOptimizationData::is_convertible, max_quality_loss_, yaze::gfx::OptimizationResult::memory_saved, yaze::gfx::OptimizationResult::message, min_memory_savings_, yaze::gfx::SheetOptimizationData::optimized_size, yaze::gfx::OptimizationResult::performance_gain, performance_threshold_, yaze::gfx::OptimizationResult::quality_loss, yaze::gfx::SheetOptimizationData::recommended_format, yaze::gfx::OptimizationResult::recommended_formats, yaze::gfx::OptimizationResult::sheet_recommendations, ShouldOptimize(), yaze::gfx::OptimizationResult::success, and UpdateOptimizationStats().

Referenced by OptimizeSheets().

◆ OptimizeSheets()

OptimizationResult yaze::gfx::GraphicsOptimizer::OptimizeSheets	(	const std::unordered_map< int, std::vector< uint8_t > > &	sheets,
		const std::unordered_map< int, SnesPalette > &	palettes,
		OptimizationStrategy	strategy = OptimizationStrategy::kBalanced )

Optimize multiple graphics sheets.

Parameters

sheets	Map of sheet ID to sheet data
palettes	Map of sheet ID to palette
strategy	Optimization strategy

Returns: Optimization result

Definition at line 87 of file graphics_optimizer.cc.

References yaze::gfx::OptimizationResult::memory_saved, yaze::gfx::OptimizationResult::message, OptimizeSheet(), yaze::gfx::OptimizationResult::performance_gain, yaze::gfx::OptimizationResult::quality_loss, yaze::gfx::OptimizationResult::recommended_formats, yaze::gfx::OptimizationResult::sheet_recommendations, yaze::gfx::OptimizationResult::success, and UpdateOptimizationStats().

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◆ AnalyzeSheet()

SheetOptimizationData yaze::gfx::GraphicsOptimizer::AnalyzeSheet	(	const std::vector< uint8_t > &	sheet_data,
		int	sheet_id,
		const SnesPalette &	palette )

Analyze graphics sheet for optimization opportunities.

Parameters

sheet_data	Graphics sheet data
sheet_id	Sheet identifier
palette	Sheet palette

Returns: Optimization data

Definition at line 148 of file graphics_optimizer.cc.

Referenced by GetOptimizationRecommendations(), and OptimizeSheet().

◆ GetOptimizationRecommendations()

std::unordered_map< int, SheetOptimizationData > yaze::gfx::GraphicsOptimizer::GetOptimizationRecommendations	(	const std::unordered_map< int, std::vector< uint8_t > > &	sheets,
		const std::unordered_map< int, SnesPalette > &	palettes )

Get optimization recommendations for all sheets.

Parameters

sheets	Map of sheet ID to sheet data
palettes	Map of sheet ID to palette

Returns: Map of sheet ID to optimization data

Definition at line 201 of file graphics_optimizer.cc.

References AnalyzeSheet().

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◆ ApplyOptimizations()

OptimizationResult yaze::gfx::GraphicsOptimizer::ApplyOptimizations	(	const std::unordered_map< int, SheetOptimizationData > &	recommendations,
		std::unordered_map< int, std::vector< uint8_t > > &	sheets,
		std::unordered_map< int, SnesPalette > &	palettes )

Apply optimization recommendations.

Parameters

recommendations	Optimization recommendations
sheets	Map of sheet ID to sheet data (modified in place)
palettes	Map of sheet ID to palette (modified in place)

Returns: Optimization result

Definition at line 219 of file graphics_optimizer.cc.

References yaze::gfx::BppFormatManager::ConvertFormat(), yaze::gfx::BppFormatManager::Get(), yaze::gfx::OptimizationResult::memory_saved, yaze::gfx::OptimizationResult::message, yaze::gfx::BppFormatManager::OptimizePaletteForFormat(), yaze::gfx::OptimizationResult::sheet_recommendations, yaze::gfx::OptimizationResult::success, and UpdateOptimizationStats().

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◆ GetOptimizationStats()

std::unordered_map< std::string, double > yaze::gfx::GraphicsOptimizer::GetOptimizationStats ( ) const

Get optimization statistics.

Returns: Map of optimization statistics

Definition at line 284 of file graphics_optimizer.cc.

References optimization_stats_.

◆ ClearCache()

void yaze::gfx::GraphicsOptimizer::ClearCache ( )

Clear optimization cache.

Definition at line 288 of file graphics_optimizer.cc.

References optimization_cache_, and optimization_stats_.

◆ SetOptimizationParameters()

void yaze::gfx::GraphicsOptimizer::SetOptimizationParameters	(	float	max_quality_loss = 0.1f,
		size_t	min_memory_savings = 1024,
		float	performance_threshold = 0.05f )

Set optimization parameters.

Parameters

max_quality_loss	Maximum acceptable quality loss (0.0-1.0)
min_memory_savings	Minimum required memory savings (bytes)
performance_threshold	Minimum performance gain threshold

Definition at line 293 of file graphics_optimizer.cc.

References max_quality_loss_, min_memory_savings_, and performance_threshold_.

◆ DetermineOptimalFormat()

BppFormat yaze::gfx::GraphicsOptimizer::DetermineOptimalFormat	(	const std::vector< uint8_t > &	data,
		const SnesPalette &	palette,
		OptimizationStrategy	strategy )