Documentation fixes.

[bertos.git] / gfx / bitmap.c

diff --git a/gfx/bitmap.c b/gfx/bitmap.c
index 0cb67d4739d085a779c82d90ab909511769e5466..ccc6f0bece6930a6465e31726dc2890722c2885a 100755 (executable)
--- a/gfx/bitmap.c
+++ b/gfx/bitmap.c
@@ -16,6 +16,12 @@
 
 /*#*
  *#* $Log$
+ *#* Revision 1.6  2006/02/23 11:17:16  bernie
+ *#* Documentation fixes.
+ *#*
+ *#* Revision 1.5  2006/02/15 09:10:15  bernie
+ *#* Implement prop fonts; Fix algo styles.
+ *#*
  *#* Revision 1.4  2006/02/10 12:32:33  bernie
  *#* Add multiple font support in bitmaps; gfx_blitRaster(): New function.
  *#*
@@ -36,6 +42,7 @@
 #include <cfg/debug.h>  /* ASSERT() */
 #include <cfg/cpu.h>    /* CPU_HARVARD */
 #include <cfg/macros.h> /* MIN() */
+#include <appconfig.h>  /* CONFIG_GFX_CLIPPING */
 
 #include <string.h>     /* memset() */
 
@@ -113,8 +120,13 @@ void gfx_blit_P(Bitmap *bm, const pgm_uint8_t *raster)
  *
  * \note Using the same bitmap for \a src and \a dst is unsupported.
  *
- * \param dst Bitmap where the operation writes
- *
+ * \param dst  Bitmap where the operation writes.
+ * \param rect The (xmin;ymin) coordinates provide the top/left offset
+ *             for drawing in the destination bitmap.  If the source
+ *             bitmap is larger than the rectangle, drawing is clipped.
+ * \param src  Bitmap containing the source pixels.
+ * \param srcx Starting X offset in the source bitmap.
+ * \param srcy Starting Y offset in the source bitmap.
  */
 void gfx_blit(Bitmap *dst, const Rect *rect, const Bitmap *src, coord_t srcx, coord_t srcy)
 {
@@ -146,7 +158,7 @@ void gfx_blit(Bitmap *dst, const Rect *rect, const Bitmap *src, coord_t srcx, co
 }
 
 
-void gfx_blitRaster(Bitmap *dst, coord_t dxmin, coord_t dymin, const uint8_t *raster, coord_t w, coord_t h)
+void gfx_blitRaster(Bitmap *dst, coord_t dxmin, coord_t dymin, const uint8_t *raster, coord_t w, coord_t h, coord_t stride)
 {
        coord_t dxmax, dymax;
        coord_t sxmin = 0, symin = 0;
@@ -155,12 +167,12 @@ void gfx_blitRaster(Bitmap *dst, coord_t dxmin, coord_t dymin, const uint8_t *ra
        /*
         * Clip coordinates inside dst->cr.
         */
-       if (dx < dst->cr.xmin)
+       if (dxmin < dst->cr.xmin)
        {
                sxmin += dst->cr.xmin - dxmin;
                dxmin = dst->cr.xmin;
        }
-       if (dy < dst->cr.ymin)
+       if (dymin < dst->cr.ymin)
        {
                symin += dst->cr.ymin - dymin;
                dymin = dst->cr.ymin;
@@ -171,9 +183,7 @@ void gfx_blitRaster(Bitmap *dst, coord_t dxmin, coord_t dymin, const uint8_t *ra
        /* TODO: make it not as dog slow as this */
        for (dx = dxmin, sx = sxmin; dx < dxmax; ++dx, ++sx)
                for (dy = dymin, sy = symin; dy < dymax; ++dy, ++sy)
-                       BM_DRAWPIXEL(dst, dx, dy,
-                               (raster[sy * ((w + 7) / 8) + sx / 8] & (1 << (7 - sx % 8))) ? 1 : 0
-                       );
+                       BM_DRAWPIXEL(dst, dx, dy, RAST_READPIXEL(raster, sx, sy, stride));
 }