Add input checks, fix overflow/wrap related bugs

1 files changed, 19 insertions, 19 deletions

diff --git a/doc/Manual/en/BH_Bitmap.pod b/doc/Manual/en/BH_Bitmap.pod
index 08441a8..9b8ff57 100644
--- a/doc/Manual/en/BH_Bitmap.pod
+++ b/doc/Manual/en/BH_Bitmap.pod
@@ -113,8 +113,8 @@ I<BH_BITMAP_RGBA32> pixel format.
 
 =head2 BH_BitmapNew
 
- BH_Bitmap *BH_BitmapNew(int width,
-                         int height,
+ BH_Bitmap *BH_BitmapNew(uint32_t width,
+                         uint32_t height,
                          int format,
                          int flags,
                          void *data,
@@ -149,8 +149,8 @@ Destroys the bitmap object.
 =head2 BH_BitmapColor
 
  void BH_BitmapColor(const BH_Bitmap *bitmap,
-                     int x,
-                     int y,
+                     uint32_t x,
+                     uint32_t y,
                      BH_Color *value);
 
 Reads color value of the pixel at specified position.
@@ -161,8 +161,8 @@ The I<x> and I<y> parameters specify a position on the bitmap.
 =head2 BH_BitmapSetColor
 
  void BH_BitmapSetColor(BH_Bitmap *bitmap,
-                        int x,
-                        int y,
+                        uint32_t x,
+                        uint32_t y,
                         const BH_Color *value);
 
 Writes color value of the pixel at specified position.
@@ -173,8 +173,8 @@ The I<x> and I<y> parameters specify a position on the bitmap.
 =head2 BH_BitmapIndex
 
  uint8_t BH_BitmapIndex(const BH_Bitmap *bitmap,
-                        int x,
-                        int y);
+                        uint32_t x,
+                        uint32_t y);
 
 Returns the index value at the specified position.
 
@@ -184,8 +184,8 @@ The I<x> and I<y> parameters specify a position on the bitmap.
 =head2 BH_BitmapSetIndex
 
  void BH_BitmapSetIndex(BH_Bitmap *bitmap,
-                        int x,
-                        int y,
+                        uint32_t x,
+                        uint32_t y,
                         uint8_t index);
 
 Sets the index value at the specified position.
@@ -196,10 +196,10 @@ The I<x> and I<y> parameters specify a position on the bitmap.
 =head2 BH_BitmapCopy
 
  BH_Bitmap *BH_BitmapCopy(BH_Bitmap *bitmap,
-                          int x,
-                          int y,
-                          int width,
-                          int height,
+                          uint32_t x,
+                          uint32_t y,
+                          uint32_t width,
+                          uint32_t height,
                           int shallow);
 
 Creates a copy of the bitmap region by the given position and size.
@@ -218,7 +218,7 @@ This function returns a pointer to a new BH_Bitmap object or NULL.
 =head2 BH_BitmapScanline
 
  void *BH_BitmapScanline(const BH_Bitmap *bitmap,
-                         int y);
+                         uint32_t y);
 
 Returns address of the scanline in the bitmap.
 
@@ -226,22 +226,22 @@ Returns address of the scanline in the bitmap.
 =head2 BH_BitmapAt
 
  void *BH_BitmapAt(const BH_Bitmap *bitmap,
-                   int x,
-                   int y);
+                   uint32_t x,
+                   uint32_t y);
 
 Returns address of the pixel in the bitmap.
 
 
 =head2 BH_BitmapWidth
 
- int BH_BitmapWidth(BH_Bitmap *bitmap);
+ uint32_t BH_BitmapWidth(BH_Bitmap *bitmap);
 
 Returns width of the bitmap.
 
 
 =head2 BH_BitmapHeight
 
- int BH_BitmapHeight(BH_Bitmap *bitmap);
+ uint32_t BH_BitmapHeight(BH_Bitmap *bitmap);
 
 Returns height of the bitmap.