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Diffstat (limited to 'demos/modules/gdisp/multiple_displays/main.c')
| -rw-r--r-- | demos/modules/gdisp/multiple_displays/main.c | 122 |
1 files changed, 122 insertions, 0 deletions
diff --git a/demos/modules/gdisp/multiple_displays/main.c b/demos/modules/gdisp/multiple_displays/main.c new file mode 100644 index 00000000..443bee27 --- /dev/null +++ b/demos/modules/gdisp/multiple_displays/main.c @@ -0,0 +1,122 @@ +/* + * Copyright (c) 2012, 2013, Joel Bodenmann aka Tectu <joel@unormal.org> + * Copyright (c) 2012, 2013, 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. + */ + +#include "gfx.h" + +#include <stdio.h> + +/* + * This demo demonstrates two ways to talk to multiple displays. + * + * Method 1 is the preferred way however Method 1 would be useful + * when quickly converting existing single display applications. + * + * Note you can combine the methods using method 2 for the first display + * and method 1 for any extra displays. + */ + +#define USE_METHOD_1 FALSE + +#if USE_METHOD_1 + int main(void) { + coord_t width, height; + coord_t display, i, j; + font_t f; + GDisplay *g; + char buf[16]; + + /* Initialize and clear the display */ + gfxInit(); + + /* Get a font to write with */ + f = gdispOpenFont("*"); + + /* Cycle through each display */ + for(display = 0; display < GDISP_TOTAL_DISPLAYS; display++) { + + // Get the specified display + g = gdispGetDisplay(display); + + // Get the screen size + width = gdispGGetWidth(g); + height = gdispGGetHeight(g); + + /* Draw draw draw */ + gdispGDrawBox(g, 10, 10, width/2, height/2, Yellow); + sprintf(buf, "Display %u", display); + gdispGFillStringBox(g, width/2, height/2, width/2-10, height/2-10, buf, f, White, Blue, justifyCenter); + gdispGDrawLine(g, 5, 30, width-50, height-40, Red); + + for(i = 5, j = 0; i < width && j < height; i += 7, j += i/20) + gdispGDrawPixel(g, i, j, White); + } + + while(TRUE) { + gfxSleepMilliseconds(500); + } + } +#else + int main(void) { + coord_t width, height; + coord_t display, i, j; + font_t f; + char buf[16]; + + /* Initialize and clear the display */ + gfxInit(); + + /* Get a font to write with */ + f = gdispOpenFont("*"); + + /* Cycle through each display */ + for(display = 0; display < GDISP_TOTAL_DISPLAYS; display++) { + + // Set the default display to the specified display + gdispSetDisplay(gdispGetDisplay(display)); + + // Get the screen size + width = gdispGetWidth(); + height = gdispGetHeight(); + + /* Draw draw draw */ + gdispDrawBox(10, 10, width/2, height/2, Yellow); + sprintf(buf, "Display %u", display); + gdispFillStringBox(width/2, height/2, width/2-10, height/2-10, buf, f, White, Blue, justifyCenter); + gdispDrawLine(5, 30, width-50, height-40, Red); + + for(i = 5, j = 0; i < width && j < height; i += 7, j += i/20) + gdispDrawPixel(i, j, White); + } + + while(TRUE) { + gfxSleepMilliseconds(500); + } + } +#endif + |