* Added some comments on System.

* New routine PadOneKeySinglePress() and PadTwoKeySinglePress().
* Temp waypoints now turn red when colliding with an aircraft or with a previously existing waypoint.
* When loading files, GPU operation is finishedbefore calling fopen. Also, I_MASK is disabled just in case.
* For PLT files, actual tile needs to be set instead of parking number.

1 files changed, 30 insertions, 0 deletions

diff --git a/Source/Gfx.h b/Source/Gfx.h
index b9984ee..68c0f5b 100644
--- a/Source/Gfx.h
+++ b/Source/Gfx.h
@@ -32,43 +32,73 @@
 void GfxInitDrawEnv(void);
 void GfxInitDispEnv(void);
 void GfxSetPrimitiveList(void);
+
 // Renders new scene. Use this function unless you know what you are doing!
 void GfxDrawScene(void);
+
 // Blocking version. Calls GfxDrawScene() and then adds a while(GfxIsBusy() )
 // after it.
 void GfxDrawScene_Slow(void);
+
 // Only renders screen and does not update any pad data or timer data.
 // To be used in ISR!
 void GfxDrawScene_Fast(void);
+
+// Repotedly, tells is GPU is ready for a DMA transfer.
+bool GfxReadyForDMATransfer(void);
+
 // Fills a GsSprite structure with information from a TIM file.
 bool GfxSpriteFromFile(char * fname, GsSprite * spr);
+
 // Reportedly, loads CLUT data from a TIM image (image data is discarded)
 bool GfxCLUTFromFile(char * fname);
+
 // Returns true if current object is within screen limits, false otherwise.
 bool GfxIsInsideScreenArea(short x, short y, short w, short h);
+
 // Function overload for GsSprite structures.
 bool GfxIsSpriteInsideScreenArea(GsSprite * spr);
+
 // Used to know whether GPU operation can be done.
 bool GfxIsGPUBusy(void);
+
+// Draws a sprite on screen. First, it checks whether sprite is inside
+// screen limits.
 void GfxSortSprite(GsSprite * spr);
+
 uint8_t GfxGetGlobalLuminance(void);
+
 void GfxSetGlobalLuminance(uint8_t value);
+
 void GfxIncreaseGlobalLuminance(int8_t step);
+
 int GfxRotateFromDegrees(int deg);
+
 void GfxDrawButton(short x, short y, unsigned short btn);
+
 // Sends current display data on a specific VRAM section and fills
 // sprite structure pointed to by "spr".
 void GfxSaveDisplayData(GsSprite *spr);
+
 TYPE_CARTESIAN_POS GfxIsometricToCartesian(TYPE_ISOMETRIC_POS * ptrIsoPos);
 // Function overload for fixed-point 16.16 data type.
+
 TYPE_CARTESIAN_POS GfxIsometricFix16ToCartesian(TYPE_ISOMETRIC_FIX16_POS * ptrIso16Pos);
+
 // Transforms cartesian position to isometric position. Z axis is assumed to be zero!
 TYPE_ISOMETRIC_POS GfxCartesianToIsometric(TYPE_CARTESIAN_POS * ptrCartPos);
+
 // Fills GsSprite structure pointed to by "spr" with texture page and U/V
 // offset data given a position in VRAM.
 bool GfxTPageOffsetFromVRAMPosition(GsSprite * spr, short x, short y);
+
+void GfxSetSplitScreen(uint8_t playerIndex);
+
+void GfxDisableSplitScreen(void);
+
 // Switches between true and false every 1 exact second (used for flashing effects)
 bool Gfx1HzFlash(void);
+
 // Switches between true and false every 500 milliseconds (used for flashing effects)
 bool Gfx2HzFlash(void);