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hide overscan area (thanks yxkalle!)

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dborth 2008-11-07 07:48:17 +00:00
parent 8b8f465794
commit 7bf1b8a4fe
1 changed files with 18 additions and 11 deletions
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29
source/ngc/gcvideo.c
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@ -697,19 +697,24 @@ void RenderFrame(unsigned char *XBuf)
UpdateScaling();
int width, height;
u16 *texture = (unsigned short *)texturemem;
u8 *src1 = XBuf;
u8 *src2 = XBuf + 256;
u8 *src3 = XBuf + 512;
u8 *src4 = XBuf + 768;
int hideoverscan = 1;
u8 borderwidth = (hideoverscan ? 8 : 0);
u16 *texture = (unsigned short *)texturemem + borderwidth * 260;
u8 *src1 = XBuf + borderwidth * 257;
u8 *src2 = XBuf + borderwidth * 257 + 256;
u8 *src3 = XBuf + borderwidth * 257 + 512;
u8 *src4 = XBuf + borderwidth * 257 + 768;
// clear texture objects
GX_InvalidateTexAll();
// fill the texture
for (height = 0; height < 240; height += 4)
for (height = 0; height < 240 - (borderwidth << 1); height += 4)
{
for (width = 0; width < 256; width += 4)
for (width = 0; width < 256 - (borderwidth << 1); width += 4)
{
// Row one
*texture++ = rgb565[*src1++];
@ -735,10 +740,12 @@ void RenderFrame(unsigned char *XBuf)
*texture++ = rgb565[*src4++];
*texture++ = rgb565[*src4++];
}
src1 += 768; // line 4*N
src2 += 768; // line 4*(N+1)
src3 += 768; // line 4*(N+2)
src4 += 768; // line 4*(N+3)
src1 += 768 + (borderwidth << 1); // line 4*N
src2 += 768 + (borderwidth << 1); // line 4*(N+1)
src3 += 768 + (borderwidth << 1); // line 4*(N+2)
src4 += 768 + (borderwidth << 1); // line 4*(N+3)
texture += (borderwidth << 3);
}
// load texture into GX