You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
208 lines
7.1 KiB
208 lines
7.1 KiB
//-----------------------------------------------------------------------------
|
|
//
|
|
// This file contains the output buffer color writing routines.
|
|
//
|
|
// Copyright (C) Microsoft Corporation, 1997.
|
|
//
|
|
//-----------------------------------------------------------------------------
|
|
|
|
#include "pch.cpp"
|
|
#pragma hdrstop
|
|
#include "mbufwrt.h"
|
|
|
|
// Names are read LSB to MSB, so B5G6R5 means five bits of blue starting
|
|
// at the LSB, then six bits of green, then five bits of red.
|
|
|
|
extern UINT16 g_uDitherTable[16];
|
|
|
|
//-----------------------------------------------------------------------------
|
|
//
|
|
// Write_B8G8R8X8_NoDither
|
|
//
|
|
// Writes output in BGR-888 format, aligned to 32 bits.
|
|
//
|
|
//-----------------------------------------------------------------------------
|
|
void CMMX_BufWrite_B8G8R8X8_NoDither(PD3DI_RASTCTX pCtx, PD3DI_RASTPRIM pP, PD3DI_RASTSPAN pS)
|
|
{
|
|
UINT32 uARGB = RGBA_MAKE(pCtx->SI.uBR>>8, pCtx->SI.uBG>>8,
|
|
pCtx->SI.uBB>>8, 0xff);
|
|
|
|
PUINT32 pSurface = (PUINT32)pS->pSurface;
|
|
*pSurface = uARGB;
|
|
|
|
// just returns for C, since we really can't loop with function calls
|
|
}
|
|
|
|
//-----------------------------------------------------------------------------
|
|
//
|
|
// Write_B8G8R8A8_NoDither
|
|
//
|
|
// Writes output in BGRA-8888 format.
|
|
//
|
|
//-----------------------------------------------------------------------------
|
|
void CMMX_BufWrite_B8G8R8A8_NoDither(PD3DI_RASTCTX pCtx, PD3DI_RASTPRIM pP, PD3DI_RASTSPAN pS)
|
|
{
|
|
UINT32 uARGB = RGBA_MAKE(pCtx->SI.uBR>>8, pCtx->SI.uBG>>8,
|
|
pCtx->SI.uBB>>8, pCtx->SI.uBA>>8);
|
|
|
|
PUINT32 pSurface = (PUINT32)pS->pSurface;
|
|
*pSurface = uARGB;
|
|
|
|
// just returns for C, since we really can't loop with function calls
|
|
}
|
|
|
|
//-----------------------------------------------------------------------------
|
|
//
|
|
// Write_B5G6R5_NoDither
|
|
//
|
|
// Writes output in BGR-565 format.
|
|
//
|
|
//-----------------------------------------------------------------------------
|
|
void CMMX_BufWrite_B5G6R5_NoDither(PD3DI_RASTCTX pCtx, PD3DI_RASTPRIM pP, PD3DI_RASTSPAN pS)
|
|
{
|
|
*(PUINT16)pS->pSurface =
|
|
((pCtx->SI.uBR >> 0) & 0xf800) |
|
|
((pCtx->SI.uBG >> 5) & 0x07e0) |
|
|
((pCtx->SI.uBB >> 11) & 0x001f);
|
|
|
|
// just returns for C, since we really can't loop with function calls
|
|
}
|
|
|
|
//-----------------------------------------------------------------------------
|
|
//
|
|
// Write_B5G6R5_Dither
|
|
//
|
|
// Writes output in BGR-565 format, dithered.
|
|
//
|
|
//-----------------------------------------------------------------------------
|
|
void CMMX_BufWrite_B5G6R5_Dither(PD3DI_RASTCTX pCtx, PD3DI_RASTPRIM pP, PD3DI_RASTSPAN pS)
|
|
{
|
|
UINT16 uDither = g_uDitherTable[pCtx->SI.uDitherOffset];
|
|
UINT16 uB = pCtx->SI.uBB >> 3; // 8.8 >> 3 = 8.5
|
|
UINT16 uG = pCtx->SI.uBG >> 2;
|
|
UINT16 uR = pCtx->SI.uBR >> 3;
|
|
|
|
uB = min((uB >> 8) + ((uB & 0xff) > uDither), 0x1f);
|
|
uG = min((uG >> 8) + ((uG & 0xff) > uDither), 0x3f);
|
|
uR = min((uR >> 8) + ((uR & 0xff) > uDither), 0x1f);
|
|
|
|
*(PUINT16)pS->pSurface = uB | (uG << 5) | (uR << 11);
|
|
|
|
// just returns for C, since we really can't loop with function calls
|
|
}
|
|
|
|
//-----------------------------------------------------------------------------
|
|
//
|
|
// Write_B5G5R5_NoDither
|
|
//
|
|
// Writes output in BGR-555 format.
|
|
//
|
|
//-----------------------------------------------------------------------------
|
|
void CMMX_BufWrite_B5G5R5_NoDither(PD3DI_RASTCTX pCtx, PD3DI_RASTPRIM pP, PD3DI_RASTSPAN pS)
|
|
{
|
|
*(PUINT16)pS->pSurface =
|
|
((pCtx->SI.uBR >> 1) & 0x7c00) |
|
|
((pCtx->SI.uBG >> 6) & 0x03e0) |
|
|
((pCtx->SI.uBB >> 11) & 0x001f) |
|
|
0x8000;
|
|
|
|
// just returns for C, since we really can't loop with function calls
|
|
}
|
|
|
|
//-----------------------------------------------------------------------------
|
|
//
|
|
// Write_B5G5R5_Dither
|
|
//
|
|
// Writes output in BGR-555 format, dithered.
|
|
//
|
|
//-----------------------------------------------------------------------------
|
|
void CMMX_BufWrite_B5G5R5_Dither(PD3DI_RASTCTX pCtx, PD3DI_RASTPRIM pP, PD3DI_RASTSPAN pS)
|
|
{
|
|
UINT16 uDither = g_uDitherTable[pCtx->SI.uDitherOffset];
|
|
UINT16 uB = pCtx->SI.uBB >> 3; // 8.8 >> 3 = 8.5
|
|
UINT16 uG = pCtx->SI.uBG >> 3;
|
|
UINT16 uR = pCtx->SI.uBR >> 3;
|
|
|
|
uB = min((uB >> 8) + ((uB & 0xff) > uDither), 0x1f);
|
|
uG = min((uG >> 8) + ((uG & 0xff) > uDither), 0x1f);
|
|
uR = min((uR >> 8) + ((uR & 0xff) > uDither), 0x1f);
|
|
|
|
*(PUINT16)pS->pSurface = uB | (uG << 5) | (uR << 10) | 0x8000;
|
|
|
|
// just returns for C, since we really can't loop with function calls
|
|
}
|
|
|
|
//-----------------------------------------------------------------------------
|
|
//
|
|
// Write_B5G5R5A1_NoDither
|
|
//
|
|
// Writes output in BGRA-1555 format.
|
|
//
|
|
//-----------------------------------------------------------------------------
|
|
void CMMX_BufWrite_B5G5R5A1_NoDither(PD3DI_RASTCTX pCtx, PD3DI_RASTPRIM pP, PD3DI_RASTSPAN pS)
|
|
{
|
|
*(PUINT16)pS->pSurface =
|
|
((pCtx->SI.uBR >> 1) & 0x7c00) |
|
|
((pCtx->SI.uBG >> 6) & 0x03e0) |
|
|
((pCtx->SI.uBB >> 11) & 0x001f) |
|
|
((pCtx->SI.uBA >> 0) & 0x8000);
|
|
|
|
// just returns for C, since we really can't loop with function calls
|
|
}
|
|
|
|
//-----------------------------------------------------------------------------
|
|
//
|
|
// Write_B5G5R5A1_Dither
|
|
//
|
|
// Writes output in BGRA-1555 format, dithered.
|
|
//
|
|
//-----------------------------------------------------------------------------
|
|
void CMMX_BufWrite_B5G5R5A1_Dither(PD3DI_RASTCTX pCtx, PD3DI_RASTPRIM pP, PD3DI_RASTSPAN pS)
|
|
{
|
|
UINT16 uDither = g_uDitherTable[pCtx->SI.uDitherOffset];
|
|
UINT16 uB = pCtx->SI.uBB >> 3; // 8.8 >> 3 = 8.5
|
|
UINT16 uG = pCtx->SI.uBG >> 3;
|
|
UINT16 uR = pCtx->SI.uBR >> 3;
|
|
|
|
uB = min((uB >> 8) + ((uB & 0xff) > uDither), 0x1f);
|
|
uG = min((uG >> 8) + ((uG & 0xff) > uDither), 0x1f);
|
|
uR = min((uR >> 8) + ((uR & 0xff) > uDither), 0x1f);
|
|
|
|
*(PUINT16)pS->pSurface = uB | (uG << 5) | (uR << 10) | (pCtx->SI.uBA & 0x8000);
|
|
|
|
// just returns for C, since we really can't loop with function calls
|
|
}
|
|
|
|
//-----------------------------------------------------------------------------
|
|
//
|
|
// Write_B8G8R8_NoDither
|
|
//
|
|
// Writes output in BGR-888 format.
|
|
//
|
|
//-----------------------------------------------------------------------------
|
|
void CMMX_BufWrite_B8G8R8_NoDither(PD3DI_RASTCTX pCtx, PD3DI_RASTPRIM pP, PD3DI_RASTSPAN pS)
|
|
{
|
|
PUINT8 pSurface = (PUINT8)pS->pSurface;
|
|
*pSurface++ = pCtx->SI.uBB>>8;
|
|
*pSurface++ = pCtx->SI.uBG>>8;
|
|
*pSurface++ = pCtx->SI.uBR>>8;
|
|
|
|
// just returns for C, since we really can't loop with function calls
|
|
}
|
|
|
|
//-----------------------------------------------------------------------------
|
|
//
|
|
// Write_Palette8_NoDither
|
|
//
|
|
// Writes output to the RGB8 palette format.
|
|
//
|
|
//-----------------------------------------------------------------------------
|
|
void CMMX_BufWrite_Palette8_NoDither(PD3DI_RASTCTX pCtx, PD3DI_RASTPRIM pP, PD3DI_RASTSPAN pS)
|
|
{
|
|
UINT16 uMapIdx = MAKE_RGB8(pCtx->SI.uBR>>8, pCtx->SI.uBG>>8, pCtx->SI.uBB>>8);
|
|
|
|
*(PUINT8)pS->pSurface = (UINT8)(pCtx->pRampMap[uMapIdx]);
|
|
|
|
// just returns for C, since we really can't loop with function calls
|
|
}
|
|
|