+++ /dev/null
-/*!
- * \file
- * <!--
- * Copyright 2003, 2004, 2005, 2006 Develer S.r.l. (http://www.develer.com/)
- * Copyright 1999 Bernardo Innocenti <bernie@develer.com>
- * This file is part of DevLib - See README.devlib for information.
- * -->
- *
- * \version $Id$
- *
- * \author Bernardo Innocenti <bernie@develer.com>
- * \author Stefano Fedrigo <aleph@develer.com>
- *
- * \brief Bitmap manipulation routines.
- */
-
-/*#*
- *#* $Log$
- *#* Revision 1.2 2006/01/24 21:55:43 aleph
- *#* gfx_blit_P(): use RASTER_SIZE() to calculate raster size
- *#*
- *#* Revision 1.1 2006/01/24 02:17:49 bernie
- *#* Split out gfx.c into bitmap.c and line.c.
- *#*
- *#*/
-
-#include "gfx.h"
-#include "gfx_p.h"
-
-#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() */
-
-/*!
- * Initialize a Bitmap structure with the provided parameters.
- *
- * \note The pen position is reset to the origin.
- */
-void gfx_bitmapInit(Bitmap *bm, uint8_t *raster, coord_t w, coord_t h)
-{
- bm->raster = raster;
- bm->width = w;
- bm->height = h;
- #if (CONFIG_BITMAP_FMT == BITMAP_FMT_PLANAR_H_MSB)
- bm->stride = (w + 7) / 8;
- #elif CONFIG_BITMAP_FMT == BITMAP_FMT_PLANAR_V_LSB
- bm->stride = w;
- #else
- #error Unknown value of CONFIG_BITMAP_FMT
- #endif /* CONFIG_BITMAP_FMT */
- bm->penX = 0;
- bm->penY = 0;
-
-#if CONFIG_GFX_CLIPPING
- bm->cr.xmin = 0;
- bm->cr.ymin = 0;
- bm->cr.xmax = w;
- bm->cr.ymax = h;
-#endif /* CONFIG_GFX_CLIPPING */
-}
-
-
-/*!
- * Clear the whole bitmap surface to the background color.
- *
- * \note This function does \b not update the current pen position.
- */
-void gfx_bitmapClear(Bitmap *bm)
-{
- memset(bm->raster, 0, RASTER_SIZE(bm->width, bm->height));
-}
-
-
-#if CPU_HARVARD
-
-#include <avr/pgmspace.h> /* FIXME: memcpy_P() */
-
-/*!
- * Copy a raster picture located in program memory in the bitmap.
- * The size of the raster to copy *must* be the same of the raster bitmap.
- *
- * \note This function does \b not update the current pen position
- */
-void gfx_blit_P(Bitmap *bm, const pgm_uint8_t *raster)
-{
- memcpy_P(bm->raster, raster, RASTER_SIZE(bm->width, bm->height));
-}
-#endif /* CPU_HARVARD */
-
-/**
- * Copy a rectangular area of a bitmap on another bitmap.
- *
- * Blitting is a common copy operation involving two bitmaps.
- * A rectangular area of the source bitmap is copied bit-wise
- * to a different position in the destination bitmap.
- *
- * \note Using the same bitmap for \a src and \a dst is unsupported.
- *
- * \param dst Bitmap where the operation writes
- *
- */
-void gfx_blit(Bitmap *dst, Rect *rect, Bitmap *src, coord_t srcx, coord_t srcy)
-{
- coord_t dxmin, dymin, dxmax, dymax;
- coord_t dx, dy, sx, sy;
-
- /*
- * Clip coordinates inside dst->cr and src->width/height.
- */
- dxmin = rect->xmin;
- if (dxmin < dst->cr.xmin)
- {
- srcx += dst->cr.xmin - dxmin;
- dxmin = dst->cr.xmin;
- }
- dymin = rect->ymin;
- if (dymin < dst->cr.ymin)
- {
- srcy += dst->cr.ymin - dymin;
- dymin = dst->cr.ymin;
- }
- dxmax = MIN(MIN(rect->xmax, rect->xmin + src->width), dst->cr.xmax);
- dymax = MIN(MIN(rect->ymax, rect->ymin + src->height), dst->cr.ymax);
-
- /* TODO: make it not as dog slow as this */
- for (dx = dxmin, sx = srcx; dx < dxmax; ++dx, ++sx)
- for (dy = dymin, sy = srcy; dy < dymax; ++dy, ++sy)
- BM_DRAWPIXEL(dst, dx, dy, BM_READPIXEL(src, sx, sy));
-}
-
-
-/*!
- * Set the bitmap clipping rectangle to the specified coordinates.
- *
- * All drawing performed on the bitmap will be clipped inside this
- * rectangle.
- *
- * \note Following the convention used in all other operations, the
- * top-left pixels of the rectangle are included, while the
- * bottom-right pixels are considered outside the clipping region.
- */
-void gfx_setClipRect(Bitmap *bm, coord_t minx, coord_t miny, coord_t maxx, coord_t maxy)
-{
- ASSERT(minx < maxx);
- ASSERT(miny < maxy);
- ASSERT(miny >= 0);
- ASSERT(minx >= 0);
- ASSERT(maxx <= bm->width);
- ASSERT(maxy <= bm->height);
-
- bm->cr.xmin = minx;
- bm->cr.ymin = miny;
- bm->cr.xmax = maxx;
- bm->cr.ymax = maxy;
-
-/* kprintf("cr.xmin = %d, cr.ymin = %d, cr.xmax = %d, cr.ymax = %d\n",
- bm->cr.xMin, bm->cr.ymin, bm->cr.xmax, bm->cr.ymax);
-*/
-}