Documentation fixes.

[bertos.git] / gfx / bitmap.c

diff --git a/gfx/bitmap.c b/gfx/bitmap.c
index 36c5d00ebcdcbc57b3d0caf0cf6d9b01f8b5051a..ccc6f0bece6930a6465e31726dc2890722c2885a 100755 (executable)
--- a/gfx/bitmap.c
+++ b/gfx/bitmap.c
@@ -16,6 +16,18 @@
 
 /*#*
  *#* $Log$
+ *#* 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.
+ *#*
+ *#* Revision 1.3  2006/01/26 00:36:48  bernie
+ *#* Const correctness for some new functions.
+ *#*
  *#* Revision 1.2  2006/01/24 21:55:43  aleph
  *#* gfx_blit_P(): use RASTER_SIZE() to calculate raster size
  *#*
@@ -34,6 +46,11 @@
 
 #include <string.h>     /* memset() */
 
+#if CONFIG_GFX_TEXT
+#include <gfx/font.h>   /* default_font */
+#endif
+
+
 /*!
  * Initialize a Bitmap structure with the provided parameters.
  *
@@ -54,6 +71,10 @@ void gfx_bitmapInit(Bitmap *bm, uint8_t *raster, coord_t w, coord_t h)
        bm->penX = 0;
        bm->penY = 0;
 
+#if CONFIG_GFX_TEXT
+       gfx_setFont(bm, &default_font);
+#endif
+
 #if CONFIG_GFX_CLIPPING
        bm->cr.xmin = 0;
        bm->cr.ymin = 0;
@@ -99,10 +120,15 @@ 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, Rect *rect, Bitmap *src, coord_t srcx, coord_t srcy)
+void gfx_blit(Bitmap *dst, const Rect *rect, const Bitmap *src, coord_t srcx, coord_t srcy)
 {
        coord_t dxmin, dymin, dxmax, dymax;
        coord_t dx, dy, sx, sy;
@@ -132,6 +158,35 @@ void gfx_blit(Bitmap *dst, Rect *rect, Bitmap *src, coord_t srcx, coord_t srcy)
 }
 
 
+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;
+       coord_t dx, dy, sx, sy;
+
+       /*
+        * Clip coordinates inside dst->cr.
+        */
+       if (dxmin < dst->cr.xmin)
+       {
+               sxmin += dst->cr.xmin - dxmin;
+               dxmin = dst->cr.xmin;
+       }
+       if (dymin < dst->cr.ymin)
+       {
+               symin += dst->cr.ymin - dymin;
+               dymin = dst->cr.ymin;
+       }
+       dxmax = MIN(dxmin + w, dst->cr.xmax);
+       dymax = MIN(dymin + h, dst->cr.ymax);
+
+       /* 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, RAST_READPIXEL(raster, sx, sy, stride));
+}
+
+
 /*!
  * Set the bitmap clipping rectangle to the specified coordinates.
  *
@@ -160,3 +215,4 @@ void gfx_setClipRect(Bitmap *bm, coord_t minx, coord_t miny, coord_t maxx, coord
                bm->cr.xMin, bm->cr.ymin, bm->cr.xmax, bm->cr.ymax);
 */
 }
+