[NEW] GRRLIB_BMFX_Scatter (random mixing pixel)

I Detected there is memory leak somewhere !! have a look at link tiles 
! you will see erased part of the tileset (go up)

template/source/GRRLIB/GRRLIB.c

@@ -510,28 +510,57 @@ void GRRLIB_FlushTex(GRRLIB_texImg tex)
 /**
  * Change a texture to gray scale.
  * @see GRRLIB_FlushTex
- * @param tex the texture to change.
+ * @param texsrc the texture source.
+ * @param texdst the texture grayscaled destination.
  */
-void GRRLIB_BMFX_GrayScale(GRRLIB_texImg tex) {
+void GRRLIB_BMFX_GrayScale(GRRLIB_texImg texsrc, GRRLIB_texImg texdest) {
     unsigned int x, y;
     u8 r, g, b, gray;
     u32 color;
 
-    for(y=0; y<tex.h; y++) {
+    for(y=0; y<texsrc.h; y++) {
-        for(x=0; x<tex.w; x++) {
+        for(x=0; x<texsrc.w; x++) {
-            color = GRRLIB_GetPixelFromtexImg(x, y, tex);
+            color = GRRLIB_GetPixelFromtexImg(x, y, texsrc);
 
             b = (color>>24) & 0xFF;
             g = (color>>16) & 0xFF;
             r = (color>>8) & 0xFF;
             gray = ((r*77 + g*150 + b*28) / (255));
 
-            GRRLIB_SetPixelTotexImg(x, y, tex,
+            GRRLIB_SetPixelTotexImg(x, y, texdest,
                 ((gray << 24) | (gray << 16) | (gray << 8) | (color & 0xFF)));
         }
     }
 }
 
+/**
+ * A texture effect.
+ * @see GRRLIB_FlushTex
+ * @param texsrc the texture source.
+ * @param texdst the texture grayscaled destination.
+ * @param factor The factor level of the effect. 
+ */
+void GRRLIB_BMFX_Scatter(GRRLIB_texImg texsrc, GRRLIB_texImg texdest, int factor) {
+    unsigned int x, y;
+    int val1,val2,val3,val4;
+
+    for(y=0;y<texsrc.h;y++){
+        for(x=1;x<texsrc.w;x++){
+            val1= 0 + (int) (factor*2 * (rand() / (RAND_MAX + 1.0))) - factor ;
+            val2= 0 + (int) (factor*2 * (rand() / (RAND_MAX + 1.0))) - factor ;
+
+            if((x + val1 >= texsrc.w) && (x + val1 <0) && (y + val2 >= texsrc.h) && (y + val2 <0)){
+            }
+            else{
+                val3=GRRLIB_GetPixelFromtexImg(x,y,texsrc);
+                val4=GRRLIB_GetPixelFromtexImg(x+val1,y+val2,texsrc);
+                GRRLIB_SetPixelTotexImg(x, y, texdest, val4);
+                GRRLIB_SetPixelTotexImg(x+val1, y+val2, texdest, val3);
+            }
+        }
+    }
+}
+
 /**
  *
  * @param v

template/source/GRRLIB/GRRLIB.h

@@ -67,7 +67,8 @@ void GRRLIB_SetPixelTotexImg(int x, int y, GRRLIB_texImg tex, u32 color);
 
 void GRRLIB_FlushTex(GRRLIB_texImg tex);
 
-void GRRLIB_BMFX_GrayScale(GRRLIB_texImg tex);
+void GRRLIB_BMFX_GrayScale(GRRLIB_texImg texsrc, GRRLIB_texImg texdest);
+void GRRLIB_BMFX_Scatter(GRRLIB_texImg texsrc, GRRLIB_texImg texdest, int factor);
 
 void GRRLIB_GXEngine(Vector v[], u32 color, long count, u8 fmt);
 

template/source/main.c

@@ -55,8 +55,7 @@ Mtx GXmodelView2D;
 int main() {
     int left = 0, top = 0, page = 0, frame = TILE_DOWN + 1;
     unsigned int wait = TILE_DELAY, direction = TILE_DOWN, direction_new = TILE_DOWN;
-    int x, y, val1, val2, val3, val4;
+
-    u32 val, valtmp;
     ir_t ir1;
     u32 wpaddown, wpadheld;
     Vector triangle[] = {{400,200,0.0f}, {500,400,0.0f}, {300,400,0.0f}};
@@ -68,8 +67,7 @@ int main() {
     WPAD_SetDataFormat(WPAD_CHAN_0, WPAD_FMT_BTNS_ACC_IR);
 
     GRRLIB_texImg tex_test_jpg = GRRLIB_LoadTextureJPG(test_jpg);
-
+    GRRLIB_texImg tex_new = GRRLIB_CreateEmptyTexture(tex_test_jpg.w, tex_test_jpg.h);
-    GRRLIB_texImg tex_pixeltest = GRRLIB_CreateEmptyTexture(40, 40);
 
     GRRLIB_texImg tex_sprite_png = GRRLIB_LoadTexturePNG(sprite);
     GRRLIB_InitTileSet(&tex_sprite_png, 24, 32, 0);
@@ -89,6 +87,8 @@ int main() {
     GRRLIB_texImg tex_BMfont5 = GRRLIB_LoadTexturePNG(BMfont5);
     GRRLIB_InitTileSet(&tex_BMfont5, 8, 16, 0);
 
+    
+
     while(1) {
         WPAD_SetVRes(0, 640, 480);
         WPAD_ScanPads();
@@ -104,26 +104,11 @@ int main() {
             case 1:   // Draw images
                 GRRLIB_Printf(5, 25, tex_BMfont2, GRRLIB_WHITE, 1, "IMAGES DEMO");
          
-                GRRLIB_DrawImg(10, 50, tex_test_jpg, 0, 1, 1, GRRLIB_WHITE);
+                GRRLIB_BMFX_Scatter(tex_test_jpg, tex_new, 8);
-                GRRLIB_DrawImg(400, 150, tex_pixeltest, 0, 2, 2, GRRLIB_WHITE);
+                GRRLIB_FlushTex(tex_new);
 
-                for(x=0; x<40; x++) {
+                GRRLIB_DrawImg(10, 50, tex_test_jpg, 0, 1, 1, GRRLIB_WHITE);
-                        valtmp = 1 + (int) (180 * (rand() / (RAND_MAX + 1.0)));
+                GRRLIB_DrawImg(310, 50, tex_new, 0, 1, 1, GRRLIB_WHITE);
-                        val = (valtmp<<24) | (valtmp<<16) | (valtmp<<8) | 0xFF;
-                        GRRLIB_SetPixelTotexImg(x, 39, tex_pixeltest, val);
-                }
-                for(y=38; y>0; y--) {
-                    for(x=1; x<39; x++) {
-                        val1 = (GRRLIB_GetPixelFromtexImg(x-1, y+1, tex_pixeltest)>>8) & 0xFF;
-                        val2 = (GRRLIB_GetPixelFromtexImg(x, y+1, tex_pixeltest)>>8) & 0xFF;
-                        val3 = (GRRLIB_GetPixelFromtexImg(x+1, y+1, tex_pixeltest)>>8) & 0xFF;
-                        val4 = (GRRLIB_GetPixelFromtexImg(x, y-1, tex_pixeltest)>>8) & 0XFF;
-                        valtmp = (val1+val2+val3+val4)/4;
-                        val = (valtmp<<24) | (valtmp<<16) | (valtmp<<8) | 0xFF;
-                        GRRLIB_SetPixelTotexImg(x, y, tex_pixeltest, val);
-                    }
-                }
-                GRRLIB_FlushTex(tex_pixeltest);
                 
                 // Draw a sprite
                 GRRLIB_DrawTile(600, 400, tex_sprite_png, 0, 2, 2, GRRLIB_WHITE, 12*4); // Rupee
@@ -226,7 +211,7 @@ int main() {
     }
     GRRLIB_Exit(); // Be a good boy, clear the memory allocated by GRRLIB
     // Free some textures
-    free(tex_pixeltest.data);
+    free(tex_new.data);
     free(tex_test_jpg.data);
     free(tex_sprite_png.data);
     free(tex_BMfont1.data);