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Diffstat (limited to 'demos/modules/gdisp/images_palettes/main.c')
| -rw-r--r-- | demos/modules/gdisp/images_palettes/main.c | 104 |
1 files changed, 104 insertions, 0 deletions
diff --git a/demos/modules/gdisp/images_palettes/main.c b/demos/modules/gdisp/images_palettes/main.c new file mode 100644 index 00000000..7d63088b --- /dev/null +++ b/demos/modules/gdisp/images_palettes/main.c @@ -0,0 +1,104 @@ +/* + * Copyright (c) 2016, Joel Bodenmann aka Tectu <joel@embedded.pro> + * Copyright (c) 2016, Andrew Hannam aka inmarket + * + * 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. + */ + +/* + * This example demonstrates how the color palette of an image can be modified + * during run-time of the program to exchange colors. + * This example uses a BMP1 image (one-bit BMP) and which only has a palette + * size of two. + * Note that although the demo shows multiple images with different colors at + * the same time there's still just one copy of the image in memory at all times. + */ + +#define USE_PRINTF TRUE + +#include "gfx.h" + +static gdispImage _imgHome; + +int main(void) +{ + int paletteSize = 0; + + // Initialize everything + gfxInit(); + gdispClear(Silver); + + // Open the image file + gdispImageOpenFile(&_imgHome, "icon_home.bmp"); + + // Retrieve the color palette size and dump it - just for fun. + paletteSize = gdispImageGetPaletteSize(&_imgHome); + if (paletteSize != 2) { // With this image we expect the palette to have only two entries! + gdispClear(Red); + while (1); + } + + // Draw the image w/o modifying the palette + gdispImageDraw(&_imgHome, 10, 10, gdispGetWidth(), gdispGetHeight(), 0, 0); + + // Modify the palette & redraw at a different location + gdispImageAdjustPalette(&_imgHome, 0, Blue); + gdispImageAdjustPalette(&_imgHome, 1, Red); + gdispImageDraw(&_imgHome, 10, 60, gdispGetWidth(), gdispGetHeight(), 0, 0); + + // Modify the palette & redraw at a different location + gdispImageAdjustPalette(&_imgHome, 0, White); + gdispImageAdjustPalette(&_imgHome, 1, Black); + gdispImageDraw(&_imgHome, 10, 110, gdispGetWidth(), gdispGetHeight(), 0, 0); + + // Modify the palette & redraw at a different location + gdispImageAdjustPalette(&_imgHome, 0, Lime); + gdispImageAdjustPalette(&_imgHome, 1, Navy); + gdispImageDraw(&_imgHome, 10, 160, gdispGetWidth(), gdispGetHeight(), 0, 0); + + // Modify the palette & redraw at a different location + gdispImageAdjustPalette(&_imgHome, 0, Gray); + gdispImageAdjustPalette(&_imgHome, 1, Yellow); + gdispImageDraw(&_imgHome, 60, 60, gdispGetWidth(), gdispGetHeight(), 0, 0); + + // Modify the palette & redraw at a different location + gdispImageAdjustPalette(&_imgHome, 0, Green); + gdispImageAdjustPalette(&_imgHome, 1, Black); + gdispImageDraw(&_imgHome, 60, 110, gdispGetWidth(), gdispGetHeight(), 0, 0); + + // Modify the palette & redraw at a different location + gdispImageAdjustPalette(&_imgHome, 0, Lime); + gdispImageAdjustPalette(&_imgHome, 1, Teal); + gdispImageDraw(&_imgHome, 60, 160, gdispGetWidth(), gdispGetHeight(), 0, 0); + + // We're done. Clean up. + gdispImageClose(&_imgHome); + + while(1) { + gfxSleepMilliseconds(500); + } + + return 0; +} |