build a scaling-enabled bitmap loader in pluginlib for mono bitmap targets, and use it in the test greylib scaler plugin

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@19671 a1c6a512-1295-4272-9138-f99709370657

5 files changed, 70 insertions, 3 deletions

diff --git a/apps/plugins/lib/SOURCES b/apps/plugins/lib/SOURCES
index d21f21a..c8c1553 100644
--- a/apps/plugins/lib/SOURCES
+++ b/apps/plugins/lib/SOURCES
@@ -4,6 +4,10 @@ fixedpoint.c
 playback_control.c
 rgb_hsv.c
 #if defined(HAVE_LCD_BITMAP) && (LCD_DEPTH < 4)
+#if LCD_DEPTH == 1
+core_bmp.c
+core_resize.c
+#endif
 grey_core.c
 grey_draw.c
 grey_parm.c
diff --git a/apps/plugins/lib/bmp.c b/apps/plugins/lib/bmp.c
index a8ebbff..85e996c 100644
--- a/apps/plugins/lib/bmp.c
+++ b/apps/plugins/lib/bmp.c
@@ -87,6 +87,8 @@ int save_bmp_file( char* filename, struct bitmap *bm, const struct plugin_api* r
 }
 #endif
 
+#include "../../recorder/bmp.c"
+
 /**
    Very simple image scale from src to dst (nearest neighbour).
    Source and destination dimensions are read from the struct bitmap.
diff --git a/apps/plugins/lib/core_bmp.c b/apps/plugins/lib/core_bmp.c
new file mode 100644
index 0000000..28d70b1
--- /dev/null
+++ b/apps/plugins/lib/core_bmp.c
@@ -0,0 +1,24 @@
+/***************************************************************************
+*             __________               __   ___.
+*   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+*   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+*   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+*   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+*                     \/            \/     \/    \/            \/
+* $Id$
+*
+* This is a wrapper for the core bmp.c
+*
+* This program is free software; you can redistribute it and/or
+* modify it under the terms of the GNU General Public License
+* as published by the Free Software Foundation; either version 2
+* of the License, or (at your option) any later version.
+*
+* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+* KIND, either express or implied.
+*
+****************************************************************************/
+
+#include <plugin.h>
+#include "../../recorder/bmp.c"
+
diff --git a/apps/plugins/lib/core_resize.c b/apps/plugins/lib/core_resize.c
new file mode 100644
index 0000000..099d407
--- /dev/null
+++ b/apps/plugins/lib/core_resize.c
@@ -0,0 +1,24 @@
+/***************************************************************************
+*             __________               __   ___.
+*   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+*   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+*   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+*   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+*                     \/            \/     \/    \/            \/
+* $Id$
+*
+* This is a wrapper for the core bmp.c
+*
+* This program is free software; you can redistribute it and/or
+* modify it under the terms of the GNU General Public License
+* as published by the Free Software Foundation; either version 2
+* of the License, or (at your option) any later version.
+*
+* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+* KIND, either express or implied.
+*
+****************************************************************************/
+
+#include <plugin.h>
+#include "../../recorder/resize.c"
+
diff --git a/apps/plugins/test_greylib_bitmap_scale.c b/apps/plugins/test_greylib_bitmap_scale.c
index f8a7bb9..3d6f81f 100644
--- a/apps/plugins/test_greylib_bitmap_scale.c
+++ b/apps/plugins/test_greylib_bitmap_scale.c
@@ -22,6 +22,12 @@
 #include "plugin.h"
 #include "lib/grey.h"
 
+#if LCD_DEPTH == 1
+#define BMP_LOAD read_bmp_file
+#else
+#define BMP_LOAD rb->read_bmp_file
+#endif
+
 PLUGIN_HEADER
 GREY_INFO_STRUCT
 static unsigned char grey_bm_buf[LCD_WIDTH * LCD_HEIGHT + 
@@ -30,6 +36,8 @@ static unsigned char grey_display_buf[2*LCD_WIDTH * LCD_HEIGHT];
 
 static const struct plugin_api* rb; /* global api struct pointer */
 
+MEM_FUNCTION_WRAPPERS(rb)
+
 /* this is the plugin entry point */
 enum plugin_status plugin_start(const struct plugin_api* api, const void* parameter)
 {
@@ -47,9 +55,14 @@ enum plugin_status plugin_start(const struct plugin_api* api, const void* parame
 
     rb->strcpy(filename, parameter);
 
-    ret = rb->read_bmp_file(filename, &grey_bm, sizeof(grey_bm_buf),
-                            FORMAT_NATIVE|FORMAT_RESIZE|FORMAT_KEEP_ASPECT,
-                            &format_grey);
+#if LCD_DEPTH == 1
+    bmp_init(rb);
+    resize_init(rb);
+#endif
+
+    ret = BMP_LOAD(filename, &grey_bm, sizeof(grey_bm_buf),
+                   FORMAT_NATIVE|FORMAT_RESIZE|FORMAT_KEEP_ASPECT,
+                   &format_grey);
     
     if(ret < 1)
     {