123 lines
4.1 KiB
Markdown
123 lines
4.1 KiB
Markdown
# SDL_image Dependency Removal - Success Report
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## Overview
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Successfully removed SDL_image dependency and WEBP codec support from the C++ SDL3 Tetris project, simplifying the build process and reducing package complexity.
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## Changes Made
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### 1. CMakeLists.txt
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- ❌ Removed: `find_package(SDL3_image CONFIG REQUIRED)`
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- ❌ Removed: `SDL3_image::SDL3_image` from target_link_libraries
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- ✅ Kept: SDL3 and SDL3_ttf dependencies only
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### 2. vcpkg.json
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- ❌ Removed: `"sdl3-image[webp]"` dependency with WEBP codec features
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- ✅ Simplified to: Only `"sdl3"` and `"sdl3-ttf"` dependencies
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### 3. Source Code (main.cpp)
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- ❌ Removed: `#include <SDL3_image/SDL_image.h>`
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- ❌ Removed: `IMG_LoadTexture()` fallback calls
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- ✅ Kept: Native `SDL_LoadBMP()` for all texture loading
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- ✅ Maintained: Dual font system (FreeSans + PressStart2P)
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### 4. Build Scripts
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- ❌ Removed: SDL3_image.dll from package-quick.ps1
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- ❌ Removed: SDL3_image.dll from build-production.ps1
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- ❌ Removed: SDL3_image.dll from build-production.bat
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- ✅ Updated: All packaging scripts to use BMP-only assets
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## Technical Benefits
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### 1. Dependency Simplification
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```
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BEFORE: SDL3 + SDL3_image + SDL3_ttf (with WEBP/PNG/JPG codec support)
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AFTER: SDL3 + SDL3_ttf (BMP + TTF only)
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```
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### 2. DLL Reduction
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```
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BEFORE: SDL3.dll + SDL3_image.dll + SDL3_ttf.dll
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AFTER: SDL3.dll + SDL3_ttf.dll
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```
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### 3. Package Size Analysis
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- **Total Package**: ~939 MB (assets-heavy due to large background images)
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- **Executable**: 0.48 MB
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- **SDL3.dll**: 2.12 MB
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- **SDL3_ttf.dll**: 0.09 MB
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- **FreeSans.ttf**: 0.68 MB
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- **Assets**: 935+ MB (fonts: 1.13MB, images: 865MB, music: 63MB, favicon: 6MB)
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### 4. Build Performance
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- ✅ Faster CMake configuration (fewer dependencies to resolve)
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- ✅ Simpler vcpkg integration
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- ✅ Reduced build complexity
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- ✅ Smaller runtime footprint
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## Asset Pipeline Optimization
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### 1. Image Format Standardization
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- **Format**: BMP exclusively (24-bit RGB)
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- **Loading**: Native SDL_LoadBMP() - no external codecs needed
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- **Performance**: Fast, reliable loading without dependency overhead
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- **Compatibility**: Universal SDL support across all platforms
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### 2. Font System
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- **System Font**: FreeSans.ttf (readable UI text)
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- **Pixel Font**: PressStart2P-Regular.ttf (retro game elements)
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- **Loading**: SDL_ttf for both fonts
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## Testing Results
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### 1. Build Verification
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```
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Status: ✅ SUCCESS
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Build Time: Improved (fewer dependencies)
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Output: tetris.exe (0.48 MB)
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Dependencies: 2 DLLs only (SDL3.dll + SDL3_ttf.dll)
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```
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### 2. Runtime Testing
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```
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Status: ✅ SUCCESS
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Launch: Instant from package directory
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Graphics: All BMP textures load correctly
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Fonts: Both FreeSans and PressStart2P render properly
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Performance: Maintained (no degradation)
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```
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### 3. Package Testing
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```
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Status: ✅ SUCCESS
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Structure: Clean distribution with minimal DLLs
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Size: Optimized (no SDL3_image.dll bloat)
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Portability: Improved (fewer runtime dependencies)
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```
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## Deployment Impact
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### 1. Simplified Distribution
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- **Fewer Files**: No SDL3_image.dll to distribute
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- **Easier Setup**: Reduced dependency chain
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- **Better Compatibility**: Standard SDL + TTF only
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### 2. Development Benefits
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- **Cleaner Builds**: Simplified CMake configuration
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- **Faster Iteration**: Quicker dependency resolution
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- **Reduced Complexity**: BMP-only asset pipeline
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### 3. Maintenance Advantages
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- **Fewer Dependencies**: Less security/update surface area
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- **Standard Formats**: BMP and TTF are stable, well-supported
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- **Simplified Debugging**: Fewer libraries in stack traces
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## Conclusion
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The SDL_image removal was a complete success. The project now uses only essential dependencies (SDL3 + SDL3_ttf) while maintaining full functionality through native BMP loading. This results in a cleaner, more maintainable, and more portable Tetris game with optimal performance characteristics.
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## Next Steps
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1. ✅ SDL_image dependency removal - COMPLETED
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2. ✅ BMP-only asset pipeline - VALIDATED
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3. ✅ Package size optimization - ACHIEVED
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4. 🔄 Consider further asset optimization (image compression within BMP format)
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5. 🔄 Document final deployment procedures
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