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Improve speed of framebuffer tiling

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This commit is contained in:
Vicki Pfau 2018-03-11 22:13:13 -07:00
parent 3a8a9d7c26
commit 904e1e4be3
1 changed files with 15 additions and 2 deletions
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17
nx/source/gfx/gfx.c
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@ -559,10 +559,23 @@ void gfxFlushBuffers(void) {
size_t width = g_gfx_framebuf_display_width;
size_t height = g_gfx_framebuf_display_height;
u32 *in_framebuf = (u32*)g_gfxFramebufLinear;
u128 *out_framebuf = (u128*)actual_framebuf;
for (y=0; y<height; y++) {
for (x=0; x<width; x+=4) {
*((u128*)&actual_framebuf[gfxGetFramebufferDisplayOffset(x, y)]) = *((u128*)&in_framebuf[y * width + x]);
size_t row = y;
if (g_gfx_drawflip) row = g_gfx_framebuf_display_height-1-row;
size_t y_offset = (row & 0x70) * 4 + (row & ~0x7F) * (g_gfx_framebuf_aligned_width / 16) * 4;
y_offset += (row & 8) * 4 + (row & 6) * 2 + (row & 1);
for (x=0; x<width; x+=16) {
size_t x_offset = (x & ~0xF) * 0x20;
u128 *in_pos = (u128*)&in_framebuf[y * width + x];
u128 *out_pos = &out_framebuf[y_offset + x_offset];
out_pos[0] = in_pos[0];
out_pos[2] = in_pos[1];
out_pos[16] = in_pos[2];
out_pos[18] = in_pos[3];
}
}
}