X-Git-Url: https://codewiz.org/gitweb?a=blobdiff_plain;f=gfx%2Fbitmap.c;h=c9f1b83dce8ae2fb9b1bf722c37d45d3271f9bc2;hb=2be772f4027c5ea6ef0966d5aa0a6a3533dff9cc;hp=8aef8a84f80cb2f132f2a05bb5de60d314da72da;hpb=ca8daf282873c035853a69a1fa444810d0cb5de1;p=bertos.git

diff --git a/gfx/bitmap.c b/gfx/bitmap.c
index 8aef8a84..c9f1b83d 100755
--- a/gfx/bitmap.c
+++ b/gfx/bitmap.c
@@ -16,6 +16,21 @@
 
 /*#*
  *#* $Log$
+ *#* Revision 1.8  2006/03/27 04:48:56  bernie
+ *#* gfx_blitImage(): New function; gfx_blitRaster(): Fix clipping bug.
+ *#*
+ *#* Revision 1.7  2006/03/07 22:18:04  bernie
+ *#* Correctly compute text width for prop fonts; Make styles a per-bitmap attribute.
+ *#*
+ *#* 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.
  *#*
@@ -37,6 +52,11 @@
 
 #include <string.h>     /* memset() */
 
+#if CONFIG_GFX_TEXT
+#include <gfx/font.h>   /* default_font */
+#endif
+
+
 /*!
  * Initialize a Bitmap structure with the provided parameters.
  *
@@ -57,6 +77,11 @@ 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);
+	bm->styles = 0;
+#endif
+
 #if CONFIG_GFX_CLIPPING
 	bm->cr.xmin = 0;
 	bm->cr.ymin = 0;
@@ -102,8 +127,13 @@ 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)
 {
@@ -135,6 +165,57 @@ void gfx_blit(Bitmap *dst, const Rect *rect, const Bitmap *src, coord_t srcx, co
 }
 
 
+/**
+ * Blit a raster to a Bitmap.
+ *
+ * \see gfx_blit()
+ */
+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 = dxmin + w, dymax = dymin + h;
+	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(dxmax, dst->cr.xmax);
+	dymax = MIN(dymax, dst->cr.ymax);
+
+	//kprintf("dxmin=%d, sxmin=%d, dxmax=%d; ", dxmin, sxmin, dxmax);
+	//kprintf("dymin=%d, symin=%d, dymax=%d\n", dymin, symin, dymax);
+
+	/* 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));
+}
+
+/**
+ * Blit an Image to a Bitmap.
+ *
+ * \see gfx_blit()
+ */
+void gfx_blitImage(Bitmap *dst, coord_t dxmin, coord_t dymin, const Image *image)
+{
+	ASSERT(image);
+
+	gfx_blitRaster(dst, dxmin, dymin,
+			image->raster, image->width, image->height, image->stride);
+}
+
+
 /*!
  * Set the bitmap clipping rectangle to the specified coordinates.
  *
@@ -163,3 +244,4 @@ 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);
 */
 }
+