1 files changed, 81 insertions, 0 deletions
diff --git a/Source/Gfx.h b/Source/Gfx.h
new file mode 100755
index 0000000..b9984ee
--- /dev/null
+++ b/Source/Gfx.h
@@ -0,0 +1,81 @@
+#ifndef __GFX_HEADER__
+#define __GFX_HEADER__
+
+/* *************************************
+ * 	Includes
+ * *************************************/
+
+#include "Global_Inc.h"
+#include "System.h"
+#include "Camera.h"
+#include "Pad.h"
+
+/* *************************************
+ * 	Defines
+ * *************************************/
+
+#define X_SCREEN_RESOLUTION 	384
+#define Y_SCREEN_RESOLUTION 	240
+#define VRAM_W					1024
+#define VRAM_H					512
+#define MAX_SIZE_FOR_GSSPRITE 	256
+#define GFX_TPAGE_WIDTH 		64
+#define GFX_TPAGE_HEIGHT 		256
+#define GFX_1HZ_FLASH			(1<<7)
+#define GFX_2HZ_FLASH			(1<<8)
+#define FULL_LUMINANCE			0xFF
+
+/* *************************************
+ * 	Global prototypes
+ * *************************************/
+
+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);
+// 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);
+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);
+// 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);
+
+/* *************************************
+ * 	Global variables
+ * *************************************/
+
+extern GsSprite PSXButtons;
+
+#endif //__GFX_HEADER__