ugfx/demos/modules/gdisp/images_animated/main.c

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/*
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* Copyright (c) 2012, 2013, Joel Bodenmann aka Tectu <joel@unormal.org>
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* Copyright (c) 2012, 2013, Andrew Hannam aka inmarket
*
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* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * Neither the name of the <organization> nor the
* names of its contributors may be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "gfx.h"
/**
* The image file must be stored on a GFILE file-system.
* Use either GFILE_NEED_NATIVEFS or GFILE_NEED_ROMFS (or both).
*
* The ROMFS uses the file "romfs_files.h" to describe the set of files in the ROMFS.
*/
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#define USE_IMAGE_CACHE GFXOFF // Only if you want to get performance at the expense of RAM
#define MY_BG_COLOR RGB2COLOR(220, 220, 255) // Pale blue so we can see the transparent parts
static gImage myImage;
#define SHOW_ERROR(color) gdispFillArea(errx, erry, errcx, errcy, color)
/**
* This demo display the animated gif (either directly from a file or from a
* file encoded in flash.
* To show the various stages of encoding it displays a colored bar down the
* right hand side of the display to indicate what is happenning.
* Green - Image has completed and is displayed correctly
* Red - A really bad image fault. We couldn't open the image
* Yellow - Waiting to decode the next animation frame
* Orange - Decoding a frame has produced an error.
*/
int main(void) {
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gCoord swidth, sheight, errx, erry, errcx, errcy;
gDelay delay;
gfxInit(); // Initialize the display
gdispClear(MY_BG_COLOR);
// Get the display dimensions
swidth = gdispGetWidth();
sheight = gdispGetHeight();
// Work out our error indicator area
errx = swidth-10;
erry = 0;
errcx = 10;
errcy = sheight;
// Set up IO for our image
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if (!(gdispImageOpenFile(&myImage, "testanim.gif") & GDISP_IMAGE_ERR_UNRECOVERABLE)) {
gdispImageSetBgColor(&myImage, MY_BG_COLOR);
// Adjust the error indicator area if necessary
if (myImage.width > errx && myImage.height < sheight) {
errx = 0; erry = sheight-10;
errcx = swidth; errcy = 10;
}
while(1) {
#if USE_IMAGE_CACHE
gdispImageCache(&myImage);
#endif
if (gdispImageDraw(&myImage, 0, 0, myImage.width, myImage.height, 0, 0) != GDISP_IMAGE_ERR_OK) {
SHOW_ERROR(GFX_ORANGE);
break;
}
delay = gdispImageNext(&myImage);
if (delay == gDelayForever) {
SHOW_ERROR(GFX_GREEN);
break;
}
SHOW_ERROR(GFX_YELLOW);
if (delay != gDelayNone)
gfxSleepMilliseconds(delay);
}
gdispImageClose(&myImage);
} else
SHOW_ERROR(GFX_RED);
while(1) {
gfxSleepMilliseconds(1000);
}
return 0;
}
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