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Attempt on tiled textures for Wii.

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This commit is contained in:
Themaister 2012-01-02 12:56:09 +01:00
parent d4093dc31c
commit 793c00e614
1 changed files with 29 additions and 3 deletions
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32
wii/video.c
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@ -154,11 +154,37 @@ static void update_texture(const uint16_t *src,
unsigned width, unsigned height, unsigned pitch)
{
pitch >>= 1;
width &= ~3;
height &= ~3;
// Pitch is totally broken. No idea why.
// Texture data is 4x4 tiled @ 16bpp.
uint16_t *dst = g_tex.data;
for (unsigned i = 0; i < height; i++, dst += width, src += pitch)
memcpy(dst, src, width << 1);
for (unsigned i = 0; i < height; i += 4, src += 4 * pitch)
{
for (unsigned x = 0; x < width; x += 4, dst += 16)
{
const uint16_t *tmp_src = src + x;
dst[ 0] = tmp_src[0];
dst[ 1] = tmp_src[1];
dst[ 2] = tmp_src[2];
dst[ 3] = tmp_src[3];
tmp_src += pitch;
dst[ 4] = tmp_src[0];
dst[ 5] = tmp_src[1];
dst[ 6] = tmp_src[2];
dst[ 7] = tmp_src[3];
tmp_src += pitch;
dst[ 8] = tmp_src[0];
dst[ 9] = tmp_src[1];
dst[10] = tmp_src[2];
dst[11] = tmp_src[3];
tmp_src += pitch;
dst[12] = tmp_src[0];
dst[13] = tmp_src[1];
dst[14] = tmp_src[2];
dst[15] = tmp_src[3];
}
}
init_texture(width, height);
DCFlushRange(g_tex.data, sizeof(g_tex.data));