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Perf adjustments for simplegfx.

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This commit is contained in:
yellows8 2017-12-30 02:16:51 -05:00
parent 7c8ca82f2a
commit 20abcd733e
1 changed files with 3 additions and 2 deletions
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5
graphics/simplegfx/source/main.c
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@ -14,6 +14,7 @@ int main(int argc, char **argv)
u32 image_width = 1280, image_height = 720;
u32 tmp_width, tmp_height;
u32 x, y;
u32 j;
u32 pos;
u32 pos2;
u8 *imageptr = (u8*)image_bin;
@ -52,14 +53,14 @@ int main(int argc, char **argv)
if(tmp_height > height) tmp_height = height;
memset(framebuf, 0xff, gfxGetFramebufferSize());
for(x=0; x<image_width; x++)
for(x=0; x<image_width; x+=4)//Every 4 pixels with the below pixel-format is stored consecutively in memory.
{
for(y=0; y<image_height; y++)
{
//Each pixel is 4-bytes due to RGBA8888.
pos = gfxGetFramebufferDisplayOffset(x, y);
pos2 = (x + (y*image_width)) * 3;
framebuf32[pos] = RGBA8_MAXALPHA(imageptr[pos2+0]+(cnt*4), imageptr[pos2+1], imageptr[pos2+2]);
for(j=0; j<4; j++)framebuf32[pos+j] = RGBA8_MAXALPHA(imageptr[pos2+0+(j*3)]+(cnt*4), imageptr[pos2+1+(j*3)], imageptr[pos2+2+(j*3)]);
}
}