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

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@19671 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Andrew Mahone 2009-01-04 21:22:05 +00:00
parent b93874fefc
commit 4eedc93357
9 changed files with 188 additions and 50 deletions
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19
apps/plugins/test_greylib_bitmap_scale.c
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@ -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)
{