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/*
* 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"
#define PIXMAP_WIDTH 40
#define PIXMAP_HEIGHT 10
static GDisplay* pixmap;
static pixel_t* surface;
int main(void) {
gCoord width, height;
gCoord i, j;
// Initialize and clear the display
gfxInit();
// Get the screen size
width = gdispGetWidth();
height = gdispGetHeight();
// Create a pixmap and get a pointer to the bits
pixmap = gdispPixmapCreate(PIXMAP_WIDTH, PIXMAP_HEIGHT);
surface = gdispPixmapGetBits(pixmap);
// A pixmap can be treated either as a virtual display or as a memory framebuffer surface.
// We demonstrate writing to it using both methods.
// First demo drawing onto the surface directly
for(j = 0; j < PIXMAP_HEIGHT; j++)
for(i = 0; i < PIXMAP_WIDTH; i++)
surface[j*PIXMAP_WIDTH + i] = RGB2COLOR(0, 255-i*(256/PIXMAP_WIDTH), j*(256/PIXMAP_HEIGHT));
// Secondly, show drawing a line on it like a virtual display
gdispGDrawLine(pixmap, 0, 0, gdispGGetWidth(pixmap)-1, gdispGGetHeight(pixmap)-1, GFX_WHITE);
i = j = 0;
while(1) {
// Clear the old position
gdispFillArea(i, j, PIXMAP_WIDTH, PIXMAP_HEIGHT, GFX_BLACK);
// Change the position
i += PIXMAP_WIDTH/2;
if (i >= width - PIXMAP_WIDTH/2) {
i %= width - PIXMAP_WIDTH/2;
j = (j + PIXMAP_HEIGHT/2) % (height - PIXMAP_HEIGHT/2);
}
// Blit the pixmap to the real display at the new position
gdispBlitArea(i, j, PIXMAP_WIDTH, PIXMAP_HEIGHT, surface);
// Wait
gfxSleepMilliseconds(100);
}
// Clean up
gdispPixmapDelete(pixmap);
}
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