GameBoyAdvance graphical core registers wrapper functions... and a bit more.
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README.md

README.md

GBAdv

libgba provides almost everything you need to drive the GBA graphical capabilities, but it forces the programmer to do so in a very low level fashion, thru direct access to the GBA internal registers. This is the reason I made GBAdv, a collection of wrapper functions (and a bit more) which are useful to abstract from that low level, and finally let more enthusiast homebrewers into GBA programming.

You just have to download the GBAdv C source and put it with your project sources. Modify it if you wish/need it! Just please let me know if you find any bug.

Here's a list of the functions that are defined. Full documentation is available here -> http://wcms.teleion.it/users/cgq/gba/gbadv.html

Video Mode functions:

  • void initDisplay (unsigned int mode, int boolean_object_mapping_style_1D)

Background functions:

  • void configureBackground (unsigned int background_number, unsigned int mode, unsigned int maps, unsigned int tiles)
  • void showBackgrounds (unsigned int which)
  • void toggleBackgrounds (unsigned int show, unsigned int hide)
  • void toggleBackgroundsOn (unsigned int show)
  • void toggleBackgroundsOff (unsigned int hide)
  • void scrollBackground (unsigned int background_number, int scroll_x, int scroll_y)
  • void configureBackground2AffineMatrix (int dx, int dmx, int dy, int dmy)
  • void configureBackground3AffineMatrix (int dx, int dmx, int dy, int dmy)
  • void configureBackground2ReferencePoint (int x, int y)
  • void configureBackground3ReferencePoint (int x, int y)

Sprite functions:

  • void showSprites (int boolean_active)
  • void initSprites (int boolean_back_to_front)
  • void initSpritesFrontToBack (void)
  • void initSpritesBackToFront (void)
  • int addSprite (int x, int y, unsigned int image, unsigned int properties)
  • int reserveSprite (void)
  • void setSpriteProperties (unsigned int sprite, unsigned int image, unsigned int properties)
  • int setSpritePosition (unsigned int sprite, int x, int y)
  • int addObjectAffineMatrix (int pa, int pb, int pc, int pd)
  • void setObjectAffineMatrix (unsigned int matrix, int pa, int pb, int pc, int pd)

Other functions:

  • void setSpecialEffect (unsigned int which, unsigned int target_A, unsigned int target_B)
  • void setAlphaBlendingSpecialEffectCoefficients (unsigned int target_A, unsigned int target_B)
  • void setBrightnessSpecialEffectCoefficient (unsigned int brightness)
  • void setMosaicCoefficients (unsigned int BG_Mosaic_x, unsigned int BG_Mosaic_y, unsigned int OBJ_Mosaic_x, unsigned int OBJ_Mosaic_y)
  • void activateWindow (unsigned int windows)
  • void deactivateWindow (unsigned int windows)
  • void setWindow0Coordinates (unsigned int x0, unsigned int y0, unsigned int x1, unsigned int y1)
  • void setWindow1Coordinates (unsigned int x0, unsigned int y0, unsigned int x1, unsigned int y1)
  • void setWindowControl (unsigned int enabled_inside_win0, unsigned int enabled_inside_win1, unsigned int enabled_outside, unsigned int enabled_objects)