/***************************************************************************
* *
* Project64-video - A Nintendo 64 gfx plugin. *
* http://www.pj64-emu.com/ *
* Copyright (C) 2017 Project64. All rights reserved. *
* Copyright (C) 2003-2009 Sergey 'Gonetz' Lipski *
* Copyright (C) 2002 Dave2001 *
* *
* License: *
* GNU/GPLv2 http://www.gnu.org/licenses/gpl-2.0.html *
* version 2 of the License, or (at your option) any later version. *
* *
****************************************************************************/
static inline void load16bRGBA(uint8_t *src, uint8_t *dst, int wid_64, int height, int line, int ext)
{
uint32_t *v6;
uint32_t *v7;
int v8;
int v9;
uint32_t v10;
uint32_t v11;
uint32_t *v12;
uint32_t *v13;
int v14;
uint32_t v15;
uint32_t v16;
int v17;
int v18;
v6 = (uint32_t *)src;
v7 = (uint32_t *)dst;
v8 = height;
do
{
v17 = v8;
v9 = wid_64;
do
{
v10 = bswap32(*v6);
v11 = bswap32(v6[1]);
ALOWORD(v10) = __ROR__((uint16_t)(v10 & 0xFFFF), 1);
ALOWORD(v11) = __ROR__((uint16_t)(v11 & 0xFFFF), 1);
v10 = __ROR__(v10, 16);
v11 = __ROR__(v11, 16);
ALOWORD(v10) = __ROR__((uint16_t)(v10 & 0xFFFF), 1);
ALOWORD(v11) = __ROR__((uint16_t)(v11 & 0xFFFF), 1);
*v7 = v10;
v7[1] = v11;
v6 += 2;
v7 += 2;
--v9;
} while (v9);
if (v17 == 1)
break;
v18 = v17 - 1;
v12 = (uint32_t *)&src[(line + (uintptr_t)v6 - (uintptr_t)src) & 0xFFF];
v13 = (uint32_t *)((char *)v7 + ext);
v14 = wid_64;
do
{
v15 = bswap32(v12[1]);
v16 = bswap32(*v12);
ALOWORD(v15) = __ROR__((uint16_t)(v15 & 0xFFFF), 1);
ALOWORD(v16) = __ROR__((uint16_t)(v16 & 0xFFFF), 1);
v15 = __ROR__(v15, 16);
v16 = __ROR__(v16, 16);
ALOWORD(v15) = __ROR__((uint16_t)(v15 & 0xFFFF), 1);
ALOWORD(v16) = __ROR__((uint16_t)(v16 & 0xFFFF), 1);
*v13 = v15;
v13[1] = v16;
v12 += 2;
v13 += 2;
--v14;
} while (v14);
v6 = (uint32_t *)&src[(line + (uintptr_t)v12 - (uintptr_t)src) & 0xFFF];
v7 = (uint32_t *)((char *)v13 + ext);
v8 = v18 - 1;
} while (v18 != 1);
}
static inline void load16bIA(uint8_t *src, uint8_t *dst, int wid_64, int height, int line, int ext)
{
uint32_t *v6;
uint32_t *v7;
int v8;
int v9;
uint32_t v10;
uint32_t *v11;
uint32_t *v12;
int v13;
uint32_t v14;
int v15;
int v16;
v6 = (uint32_t *)src;
v7 = (uint32_t *)dst;
v8 = height;
do
{
v15 = v8;
v9 = wid_64;
do
{
v10 = v6[1];
*v7 = *v6;
v7[1] = v10;
v6 += 2;
v7 += 2;
--v9;
} while (v9);
if (v15 == 1)
break;
v16 = v15 - 1;
v11 = (uint32_t *)((char *)v6 + line);
v12 = (uint32_t *)((char *)v7 + ext);
v13 = wid_64;
do
{
v14 = *v11;
*v12 = v11[1];
v12[1] = v14;
v11 += 2;
v12 += 2;
--v13;
} while (v13);
v6 = (uint32_t *)((char *)v11 + line);
v7 = (uint32_t *)((char *)v12 + ext);
v8 = v16 - 1;
} while (v16 != 1);
}
//****************************************************************
// Size: 2, Format: 0
//
uint32_t Load16bRGBA(uintptr_t dst, uintptr_t src, int wid_64, int height, int line, int real_width, int /*tile*/)
{
if (wid_64 < 1) wid_64 = 1;
if (height < 1) height = 1;
int ext = (real_width - (wid_64 << 2)) << 1;
load16bRGBA((uint8_t *)src, (uint8_t *)dst, wid_64, height, line, ext);
return (1 << 16) | GFX_TEXFMT_ARGB_1555;
}
//****************************************************************
// Size: 2, Format: 3
//
uint32_t Load16bIA(uintptr_t dst, uintptr_t src, int wid_64, int height, int line, int real_width, int /*tile*/)
{
if (wid_64 < 1) wid_64 = 1;
if (height < 1) height = 1;
int ext = (real_width - (wid_64 << 2)) << 1;
load16bIA((uint8_t *)src, (uint8_t *)dst, wid_64, height, line, ext);
return (1 << 16) | GFX_TEXFMT_ALPHA_INTENSITY_88;
}
//****************************************************************
// Size: 2, Format: 1
//
uint16_t yuv_to_rgb565(uint8_t y, uint8_t u, uint8_t v)
{
//*
float r = y + (1.370705f * (v - 128));
float g = y - (0.698001f * (v - 128)) - (0.337633f * (u - 128));
float b = y + (1.732446f * (u - 128));
r *= 0.125f;
g *= 0.25f;
b *= 0.125f;
//clipping the result
if (r > 31) r = 31;
if (g > 63) g = 63;
if (b > 31) b = 31;
if (r < 0) r = 0;
if (g < 0) g = 0;
if (b < 0) b = 0;
uint16_t c = (uint16_t)(((uint16_t)(r) << 11) |
((uint16_t)(g) << 5) |
(uint16_t)(b));
return c;
//*/
/*
const uint32_t c = y - 16;
const uint32_t d = u - 128;
const uint32_t e = v - 128;
uint32_t r = (298 * c + 409 * e + 128) & 0xf800;
uint32_t g = ((298 * c - 100 * d - 208 * e + 128) >> 5) & 0x7e0;
uint32_t b = ((298 * c + 516 * d + 128) >> 11) & 0x1f;
WORD texel = (WORD)(r | g | b);
return texel;
*/
}
//****************************************************************
// Size: 2, Format: 1
//
uint32_t Load16bYUV(uintptr_t dst, uintptr_t /*src*/, int /*wid_64*/, int /*height*/, int /*line*/, int /*real_width*/, int tile)
{
uint32_t * mb = (uint32_t*)(gfx.RDRAM + rdp.addr[rdp.tiles(tile).t_mem]); //pointer to the macro block
uint16_t * tex = (uint16_t*)dst;
uint16_t i;
for (i = 0; i < 128; i++)
{
uint32_t t = mb[i]; //each uint32_t contains 2 pixels
uint8_t y1 = (uint8_t)t & 0xFF;
uint8_t v = (uint8_t)(t >> 8) & 0xFF;
uint8_t y0 = (uint8_t)(t >> 16) & 0xFF;
uint8_t u = (uint8_t)(t >> 24) & 0xFF;
uint16_t c = yuv_to_rgb565(y0, u, v);
*(tex++) = c;
c = yuv_to_rgb565(y1, u, v);
*(tex++) = c;
}
return (1 << 16) | GFX_TEXFMT_RGB_565;
}