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Access the framebuf in simplegfx linearly and moved a comment.

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yellows8 2018-02-16 20:17:54 -05:00
parent 3d9851145a
commit 4f743f49ad
1 changed files with 3 additions and 4 deletions
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7
graphics/simplegfx/source/main.c
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@ -45,17 +45,16 @@ int main(int argc, char **argv)
} }
//Each pixel is 4-bytes due to RGBA8888. //Each pixel is 4-bytes due to RGBA8888.
//Set framebuf to different shades of grey.
u32 x, y; u32 x, y;
for (x=0; x<width; x++) for (y=0; y<height; y++)//Access the buffer linearly.
{ {
for (y=0; y<height; y++) for (x=0; x<width; x++)
{ {
pos = y * width + x; pos = y * width + x;
#ifdef DISPLAY_IMAGE #ifdef DISPLAY_IMAGE
framebuf[pos] = RGBA8_MAXALPHA(imageptr[pos*3+0]+(cnt*4), imageptr[pos*3+1], imageptr[pos*3+2]); framebuf[pos] = RGBA8_MAXALPHA(imageptr[pos*3+0]+(cnt*4), imageptr[pos*3+1], imageptr[pos*3+2]);
#else #else
framebuf[pos] = 0x01010101 * cnt * 4; framebuf[pos] = 0x01010101 * cnt * 4;//Set framebuf to different shades of grey.
#endif #endif
} }
} }