813 lines
19 KiB
C++
813 lines
19 KiB
C++
// Copyright (C) 2002-2012 Nikolaus Gebhardt / Thomas Alten
|
|
// This file is part of the "Irrlicht Engine".
|
|
// For conditions of distribution and use, see copyright notice in irrlicht.h
|
|
|
|
#ifndef _C_BLIT_H_INCLUDED_
|
|
#define _C_BLIT_H_INCLUDED_
|
|
|
|
#include "SoftwareDriver2_helper.h"
|
|
|
|
namespace irr
|
|
{
|
|
|
|
struct SBlitJob
|
|
{
|
|
AbsRectangle Dest;
|
|
AbsRectangle Source;
|
|
|
|
u32 argb;
|
|
|
|
void * src;
|
|
void * dst;
|
|
|
|
s32 width;
|
|
s32 height;
|
|
|
|
u32 srcPitch;
|
|
u32 dstPitch;
|
|
|
|
u32 srcPixelMul;
|
|
u32 dstPixelMul;
|
|
|
|
bool stretch;
|
|
float x_stretch;
|
|
float y_stretch;
|
|
|
|
SBlitJob() : stretch(false) {}
|
|
};
|
|
|
|
// Bitfields Cohen Sutherland
|
|
enum eClipCode
|
|
{
|
|
CLIPCODE_EMPTY = 0,
|
|
CLIPCODE_BOTTOM = 1,
|
|
CLIPCODE_TOP = 2,
|
|
CLIPCODE_LEFT = 4,
|
|
CLIPCODE_RIGHT = 8
|
|
};
|
|
|
|
inline u32 GetClipCode( const AbsRectangle &r, const core::position2d<s32> &p )
|
|
{
|
|
u32 code = CLIPCODE_EMPTY;
|
|
|
|
if ( p.X < r.x0 )
|
|
code = CLIPCODE_LEFT;
|
|
else
|
|
if ( p.X > r.x1 )
|
|
code = CLIPCODE_RIGHT;
|
|
|
|
if ( p.Y < r.y0 )
|
|
code |= CLIPCODE_TOP;
|
|
else
|
|
if ( p.Y > r.y1 )
|
|
code |= CLIPCODE_BOTTOM;
|
|
|
|
return code;
|
|
}
|
|
|
|
/*
|
|
*/
|
|
inline void GetClip(AbsRectangle &clipping, video::IImage * t)
|
|
{
|
|
clipping.x0 = 0;
|
|
clipping.y0 = 0;
|
|
clipping.x1 = t->getDimension().Width - 1;
|
|
clipping.y1 = t->getDimension().Height - 1;
|
|
}
|
|
|
|
/*
|
|
return alpha in [0;256] Granularity from 32-Bit ARGB
|
|
add highbit alpha ( alpha > 127 ? + 1 )
|
|
*/
|
|
static inline u32 extractAlpha(const u32 c)
|
|
{
|
|
return ( c >> 24 ) + ( c >> 31 );
|
|
}
|
|
|
|
/*
|
|
return alpha in [0;255] Granularity and 32-Bit ARGB
|
|
add highbit alpha ( alpha > 127 ? + 1 )
|
|
*/
|
|
static inline u32 packAlpha(const u32 c)
|
|
{
|
|
return (c > 127 ? c - 1 : c) << 24;
|
|
}
|
|
|
|
|
|
/*!
|
|
Scale Color by (1/value)
|
|
value 0 - 256 ( alpha )
|
|
*/
|
|
inline u32 PixelLerp32(const u32 source, const u32 value)
|
|
{
|
|
u32 srcRB = source & 0x00FF00FF;
|
|
u32 srcXG = (source & 0xFF00FF00) >> 8;
|
|
|
|
srcRB *= value;
|
|
srcXG *= value;
|
|
|
|
srcRB >>= 8;
|
|
//srcXG >>= 8;
|
|
|
|
srcXG &= 0xFF00FF00;
|
|
srcRB &= 0x00FF00FF;
|
|
|
|
return srcRB | srcXG;
|
|
}
|
|
|
|
/*!
|
|
*/
|
|
static void executeBlit_TextureCopy_x_to_x( const SBlitJob * job )
|
|
{
|
|
const u32 w = job->width;
|
|
const u32 h = job->height;
|
|
if (job->stretch)
|
|
{
|
|
const u32 *src = static_cast<const u32*>(job->src);
|
|
u32 *dst = static_cast<u32*>(job->dst);
|
|
const float wscale = 1.f/job->x_stretch;
|
|
const float hscale = 1.f/job->y_stretch;
|
|
|
|
for ( u32 dy = 0; dy < h; ++dy )
|
|
{
|
|
const u32 src_y = (u32)(dy*hscale);
|
|
src = (u32*) ( (u8*) (job->src) + job->srcPitch*src_y );
|
|
|
|
for ( u32 dx = 0; dx < w; ++dx )
|
|
{
|
|
const u32 src_x = (u32)(dx*wscale);
|
|
dst[dx] = src[src_x];
|
|
}
|
|
dst = (u32*) ( (u8*) (dst) + job->dstPitch );
|
|
}
|
|
}
|
|
else
|
|
{
|
|
const u32 widthPitch = job->width * job->dstPixelMul;
|
|
const void *src = (void*) job->src;
|
|
void *dst = (void*) job->dst;
|
|
|
|
for ( u32 dy = 0; dy != h; ++dy )
|
|
{
|
|
memcpy( dst, src, widthPitch );
|
|
|
|
src = (void*) ( (u8*) (src) + job->srcPitch );
|
|
dst = (void*) ( (u8*) (dst) + job->dstPitch );
|
|
}
|
|
}
|
|
}
|
|
|
|
/*!
|
|
*/
|
|
static void executeBlit_TextureCopy_32_to_16( const SBlitJob * job )
|
|
{
|
|
const u32 w = job->width;
|
|
const u32 h = job->height;
|
|
const u32 *src = static_cast<const u32*>(job->src);
|
|
u16 *dst = static_cast<u16*>(job->dst);
|
|
|
|
if (job->stretch)
|
|
{
|
|
const float wscale = 1.f/job->x_stretch;
|
|
const float hscale = 1.f/job->y_stretch;
|
|
|
|
for ( u32 dy = 0; dy < h; ++dy )
|
|
{
|
|
const u32 src_y = (u32)(dy*hscale);
|
|
src = (u32*) ( (u8*) (job->src) + job->srcPitch*src_y );
|
|
|
|
for ( u32 dx = 0; dx < w; ++dx )
|
|
{
|
|
const u32 src_x = (u32)(dx*wscale);
|
|
//16 bit Blitter depends on pre-multiplied color
|
|
const u32 s = PixelLerp32( src[src_x] | 0xFF000000, extractAlpha( src[src_x] ) );
|
|
dst[dx] = video::A8R8G8B8toA1R5G5B5( s );
|
|
}
|
|
dst = (u16*) ( (u8*) (dst) + job->dstPitch );
|
|
}
|
|
}
|
|
else
|
|
{
|
|
for ( u32 dy = 0; dy != h; ++dy )
|
|
{
|
|
for ( u32 dx = 0; dx != w; ++dx )
|
|
{
|
|
//16 bit Blitter depends on pre-multiplied color
|
|
const u32 s = PixelLerp32( src[dx] | 0xFF000000, extractAlpha( src[dx] ) );
|
|
dst[dx] = video::A8R8G8B8toA1R5G5B5( s );
|
|
}
|
|
|
|
src = (u32*) ( (u8*) (src) + job->srcPitch );
|
|
dst = (u16*) ( (u8*) (dst) + job->dstPitch );
|
|
}
|
|
}
|
|
}
|
|
|
|
/*!
|
|
*/
|
|
static void executeBlit_TextureCopy_24_to_16( const SBlitJob * job )
|
|
{
|
|
const u32 w = job->width;
|
|
const u32 h = job->height;
|
|
const u8 *src = static_cast<const u8*>(job->src);
|
|
u16 *dst = static_cast<u16*>(job->dst);
|
|
|
|
if (job->stretch)
|
|
{
|
|
const float wscale = 3.f/job->x_stretch;
|
|
const float hscale = 1.f/job->y_stretch;
|
|
|
|
for ( u32 dy = 0; dy < h; ++dy )
|
|
{
|
|
const u32 src_y = (u32)(dy*hscale);
|
|
src = (u8*)(job->src) + job->srcPitch*src_y;
|
|
|
|
for ( u32 dx = 0; dx < w; ++dx )
|
|
{
|
|
const u8* src_x = src+(u32)(dx*wscale);
|
|
dst[dx] = video::RGBA16(src_x[0], src_x[1], src_x[2]);
|
|
}
|
|
dst = (u16*) ( (u8*) (dst) + job->dstPitch );
|
|
}
|
|
}
|
|
else
|
|
{
|
|
for ( u32 dy = 0; dy != h; ++dy )
|
|
{
|
|
const u8* s = src;
|
|
for ( u32 dx = 0; dx != w; ++dx )
|
|
{
|
|
dst[dx] = video::RGBA16(s[0], s[1], s[2]);
|
|
s += 3;
|
|
}
|
|
|
|
src = src+job->srcPitch;
|
|
dst = (u16*) ( (u8*) (dst) + job->dstPitch );
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
/*!
|
|
*/
|
|
static void executeBlit_TextureCopy_16_to_32( const SBlitJob * job )
|
|
{
|
|
const u32 w = job->width;
|
|
const u32 h = job->height;
|
|
const u16 *src = static_cast<const u16*>(job->src);
|
|
u32 *dst = static_cast<u32*>(job->dst);
|
|
|
|
if (job->stretch)
|
|
{
|
|
const float wscale = 1.f/job->x_stretch;
|
|
const float hscale = 1.f/job->y_stretch;
|
|
|
|
for ( u32 dy = 0; dy < h; ++dy )
|
|
{
|
|
const u32 src_y = (u32)(dy*hscale);
|
|
src = (u16*) ( (u8*) (job->src) + job->srcPitch*src_y );
|
|
|
|
for ( u32 dx = 0; dx < w; ++dx )
|
|
{
|
|
const u32 src_x = (u32)(dx*wscale);
|
|
dst[dx] = video::A1R5G5B5toA8R8G8B8(src[src_x]);
|
|
}
|
|
dst = (u32*) ( (u8*) (dst) + job->dstPitch );
|
|
}
|
|
}
|
|
else
|
|
{
|
|
for ( u32 dy = 0; dy != h; ++dy )
|
|
{
|
|
for ( u32 dx = 0; dx != w; ++dx )
|
|
{
|
|
dst[dx] = video::A1R5G5B5toA8R8G8B8( src[dx] );
|
|
}
|
|
|
|
src = (u16*) ( (u8*) (src) + job->srcPitch );
|
|
dst = (u32*) ( (u8*) (dst) + job->dstPitch );
|
|
}
|
|
}
|
|
}
|
|
|
|
static void executeBlit_TextureCopy_16_to_24( const SBlitJob * job )
|
|
{
|
|
const u32 w = job->width;
|
|
const u32 h = job->height;
|
|
const u16 *src = static_cast<const u16*>(job->src);
|
|
u8 *dst = static_cast<u8*>(job->dst);
|
|
|
|
if (job->stretch)
|
|
{
|
|
const float wscale = 1.f/job->x_stretch;
|
|
const float hscale = 1.f/job->y_stretch;
|
|
|
|
for ( u32 dy = 0; dy < h; ++dy )
|
|
{
|
|
const u32 src_y = (u32)(dy*hscale);
|
|
src = (u16*) ( (u8*) (job->src) + job->srcPitch*src_y );
|
|
|
|
for ( u32 dx = 0; dx < w; ++dx )
|
|
{
|
|
const u32 src_x = (u32)(dx*wscale);
|
|
u32 color = video::A1R5G5B5toA8R8G8B8(src[src_x]);
|
|
u8 * writeTo = &dst[dx * 3];
|
|
*writeTo++ = (color >> 16)& 0xFF;
|
|
*writeTo++ = (color >> 8) & 0xFF;
|
|
*writeTo++ = color & 0xFF;
|
|
}
|
|
dst += job->dstPitch;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
for ( u32 dy = 0; dy != h; ++dy )
|
|
{
|
|
for ( u32 dx = 0; dx != w; ++dx )
|
|
{
|
|
u32 color = video::A1R5G5B5toA8R8G8B8(src[dx]);
|
|
u8 * writeTo = &dst[dx * 3];
|
|
*writeTo++ = (color >> 16)& 0xFF;
|
|
*writeTo++ = (color >> 8) & 0xFF;
|
|
*writeTo++ = color & 0xFF;
|
|
}
|
|
|
|
src = (u16*) ( (u8*) (src) + job->srcPitch );
|
|
dst += job->dstPitch;
|
|
}
|
|
}
|
|
}
|
|
|
|
/*!
|
|
*/
|
|
static void executeBlit_TextureCopy_24_to_32( const SBlitJob * job )
|
|
{
|
|
const u32 w = job->width;
|
|
const u32 h = job->height;
|
|
const u8 *src = static_cast<const u8*>(job->src);
|
|
u32 *dst = static_cast<u32*>(job->dst);
|
|
|
|
if (job->stretch)
|
|
{
|
|
const float wscale = 3.f/job->x_stretch;
|
|
const float hscale = 1.f/job->y_stretch;
|
|
|
|
for ( u32 dy = 0; dy < h; ++dy )
|
|
{
|
|
const u32 src_y = (u32)(dy*hscale);
|
|
src = (const u8*)job->src+(job->srcPitch*src_y);
|
|
|
|
for ( u32 dx = 0; dx < w; ++dx )
|
|
{
|
|
const u8* s = src+(u32)(dx*wscale);
|
|
dst[dx] = 0xFF000000 | s[0] << 16 | s[1] << 8 | s[2];
|
|
}
|
|
dst = (u32*) ( (u8*) (dst) + job->dstPitch );
|
|
}
|
|
}
|
|
else
|
|
{
|
|
for ( s32 dy = 0; dy != job->height; ++dy )
|
|
{
|
|
const u8* s = src;
|
|
|
|
for ( s32 dx = 0; dx != job->width; ++dx )
|
|
{
|
|
dst[dx] = 0xFF000000 | s[0] << 16 | s[1] << 8 | s[2];
|
|
s += 3;
|
|
}
|
|
|
|
src = src + job->srcPitch;
|
|
dst = (u32*) ( (u8*) (dst) + job->dstPitch );
|
|
}
|
|
}
|
|
}
|
|
|
|
static void executeBlit_TextureCopy_32_to_24( const SBlitJob * job )
|
|
{
|
|
const u32 w = job->width;
|
|
const u32 h = job->height;
|
|
const u32 *src = static_cast<const u32*>(job->src);
|
|
u8 *dst = static_cast<u8*>(job->dst);
|
|
|
|
if (job->stretch)
|
|
{
|
|
const float wscale = 1.f/job->x_stretch;
|
|
const float hscale = 1.f/job->y_stretch;
|
|
|
|
for ( u32 dy = 0; dy < h; ++dy )
|
|
{
|
|
const u32 src_y = (u32)(dy*hscale);
|
|
src = (u32*) ( (u8*) (job->src) + job->srcPitch*src_y);
|
|
|
|
for ( u32 dx = 0; dx < w; ++dx )
|
|
{
|
|
const u32 src_x = src[(u32)(dx*wscale)];
|
|
u8 * writeTo = &dst[dx * 3];
|
|
*writeTo++ = (src_x >> 16)& 0xFF;
|
|
*writeTo++ = (src_x >> 8) & 0xFF;
|
|
*writeTo++ = src_x & 0xFF;
|
|
}
|
|
dst += job->dstPitch;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
for ( u32 dy = 0; dy != h; ++dy )
|
|
{
|
|
for ( u32 dx = 0; dx != w; ++dx )
|
|
{
|
|
u8 * writeTo = &dst[dx * 3];
|
|
*writeTo++ = (src[dx] >> 16)& 0xFF;
|
|
*writeTo++ = (src[dx] >> 8) & 0xFF;
|
|
*writeTo++ = src[dx] & 0xFF;
|
|
}
|
|
|
|
src = (u32*) ( (u8*) (src) + job->srcPitch );
|
|
dst += job->dstPitch;
|
|
}
|
|
}
|
|
}
|
|
|
|
/*!
|
|
*/
|
|
static void executeBlit_TextureBlend_16_to_16( const SBlitJob * job )
|
|
{
|
|
const u32 w = job->width;
|
|
const u32 h = job->height;
|
|
const u32 rdx = w>>1;
|
|
|
|
const u32 *src = (u32*) job->src;
|
|
u32 *dst = (u32*) job->dst;
|
|
|
|
if (job->stretch)
|
|
{
|
|
const float wscale = 1.f/job->x_stretch;
|
|
const float hscale = 1.f/job->y_stretch;
|
|
const u32 off = core::if_c_a_else_b(w&1, (u32)((w-1)*wscale), 0);
|
|
for ( u32 dy = 0; dy < h; ++dy )
|
|
{
|
|
const u32 src_y = (u32)(dy*hscale);
|
|
src = (u32*) ( (u8*) (job->src) + job->srcPitch*src_y );
|
|
|
|
for ( u32 dx = 0; dx < rdx; ++dx )
|
|
{
|
|
const u32 src_x = (u32)(dx*wscale);
|
|
dst[dx] = PixelBlend16_simd( dst[dx], src[src_x] );
|
|
}
|
|
if ( off )
|
|
{
|
|
((u16*) dst)[off] = PixelBlend16( ((u16*) dst)[off], ((u16*) src)[off] );
|
|
}
|
|
|
|
dst = (u32*) ( (u8*) (dst) + job->dstPitch );
|
|
}
|
|
}
|
|
else
|
|
{
|
|
const u32 off = core::if_c_a_else_b(w&1, w-1, 0);
|
|
for (u32 dy = 0; dy != h; ++dy )
|
|
{
|
|
for (u32 dx = 0; dx != rdx; ++dx )
|
|
{
|
|
dst[dx] = PixelBlend16_simd( dst[dx], src[dx] );
|
|
}
|
|
|
|
if ( off )
|
|
{
|
|
((u16*) dst)[off] = PixelBlend16( ((u16*) dst)[off], ((u16*) src)[off] );
|
|
}
|
|
|
|
src = (u32*) ( (u8*) (src) + job->srcPitch );
|
|
dst = (u32*) ( (u8*) (dst) + job->dstPitch );
|
|
}
|
|
}
|
|
}
|
|
|
|
/*!
|
|
*/
|
|
static void executeBlit_TextureBlend_32_to_32( const SBlitJob * job )
|
|
{
|
|
const u32 w = job->width;
|
|
const u32 h = job->height;
|
|
const u32 *src = (u32*) job->src;
|
|
u32 *dst = (u32*) job->dst;
|
|
|
|
if (job->stretch)
|
|
{
|
|
const float wscale = 1.f/job->x_stretch;
|
|
const float hscale = 1.f/job->y_stretch;
|
|
for ( u32 dy = 0; dy < h; ++dy )
|
|
{
|
|
const u32 src_y = (u32)(dy*hscale);
|
|
src = (u32*) ( (u8*) (job->src) + job->srcPitch*src_y );
|
|
|
|
for ( u32 dx = 0; dx < w; ++dx )
|
|
{
|
|
const u32 src_x = (u32)(dx*wscale);
|
|
dst[dx] = PixelBlend32( dst[dx], src[src_x] );
|
|
}
|
|
|
|
dst = (u32*) ( (u8*) (dst) + job->dstPitch );
|
|
}
|
|
}
|
|
else
|
|
{
|
|
for ( u32 dy = 0; dy != h; ++dy )
|
|
{
|
|
for ( u32 dx = 0; dx != w; ++dx )
|
|
{
|
|
dst[dx] = PixelBlend32( dst[dx], src[dx] );
|
|
}
|
|
src = (u32*) ( (u8*) (src) + job->srcPitch );
|
|
dst = (u32*) ( (u8*) (dst) + job->dstPitch );
|
|
}
|
|
}
|
|
}
|
|
|
|
/*!
|
|
*/
|
|
static void executeBlit_TextureBlendColor_16_to_16( const SBlitJob * job )
|
|
{
|
|
u16 *src = (u16*) job->src;
|
|
u16 *dst = (u16*) job->dst;
|
|
|
|
u16 blend = video::A8R8G8B8toA1R5G5B5 ( job->argb );
|
|
for ( s32 dy = 0; dy != job->height; ++dy )
|
|
{
|
|
for ( s32 dx = 0; dx != job->width; ++dx )
|
|
{
|
|
if ( 0 == (src[dx] & 0x8000) )
|
|
continue;
|
|
|
|
dst[dx] = PixelMul16_2( src[dx], blend );
|
|
}
|
|
src = (u16*) ( (u8*) (src) + job->srcPitch );
|
|
dst = (u16*) ( (u8*) (dst) + job->dstPitch );
|
|
}
|
|
}
|
|
|
|
|
|
/*!
|
|
*/
|
|
static void executeBlit_TextureBlendColor_32_to_32( const SBlitJob * job )
|
|
{
|
|
u32 *src = (u32*) job->src;
|
|
u32 *dst = (u32*) job->dst;
|
|
|
|
for ( s32 dy = 0; dy != job->height; ++dy )
|
|
{
|
|
for ( s32 dx = 0; dx != job->width; ++dx )
|
|
{
|
|
dst[dx] = PixelBlend32( dst[dx], PixelMul32_2( src[dx], job->argb ) );
|
|
}
|
|
src = (u32*) ( (u8*) (src) + job->srcPitch );
|
|
dst = (u32*) ( (u8*) (dst) + job->dstPitch );
|
|
}
|
|
}
|
|
|
|
/*!
|
|
*/
|
|
static void executeBlit_Color_16_to_16( const SBlitJob * job )
|
|
{
|
|
const u16 c = video::A8R8G8B8toA1R5G5B5(job->argb);
|
|
u16 *dst = (u16*) job->dst;
|
|
|
|
for ( s32 dy = 0; dy != job->height; ++dy )
|
|
{
|
|
memset16(dst, c, job->srcPitch);
|
|
dst = (u16*) ( (u8*) (dst) + job->dstPitch );
|
|
}
|
|
}
|
|
|
|
/*!
|
|
*/
|
|
static void executeBlit_Color_32_to_32( const SBlitJob * job )
|
|
{
|
|
u32 *dst = (u32*) job->dst;
|
|
|
|
for ( s32 dy = 0; dy != job->height; ++dy )
|
|
{
|
|
memset32( dst, job->argb, job->srcPitch );
|
|
dst = (u32*) ( (u8*) (dst) + job->dstPitch );
|
|
}
|
|
}
|
|
|
|
/*!
|
|
*/
|
|
static void executeBlit_ColorAlpha_16_to_16( const SBlitJob * job )
|
|
{
|
|
u16 *dst = (u16*) job->dst;
|
|
|
|
const u16 alpha = extractAlpha( job->argb ) >> 3;
|
|
if ( 0 == alpha )
|
|
return;
|
|
const u32 src = video::A8R8G8B8toA1R5G5B5( job->argb );
|
|
|
|
for ( s32 dy = 0; dy != job->height; ++dy )
|
|
{
|
|
for ( s32 dx = 0; dx != job->width; ++dx )
|
|
{
|
|
dst[dx] = 0x8000 | PixelBlend16( dst[dx], src, alpha );
|
|
}
|
|
dst = (u16*) ( (u8*) (dst) + job->dstPitch );
|
|
}
|
|
}
|
|
|
|
/*!
|
|
*/
|
|
static void executeBlit_ColorAlpha_32_to_32( const SBlitJob * job )
|
|
{
|
|
u32 *dst = (u32*) job->dst;
|
|
|
|
const u32 alpha = extractAlpha( job->argb );
|
|
const u32 src = job->argb;
|
|
|
|
for ( s32 dy = 0; dy != job->height; ++dy )
|
|
{
|
|
for ( s32 dx = 0; dx != job->width; ++dx )
|
|
{
|
|
dst[dx] = (job->argb & 0xFF000000 ) | PixelBlend32( dst[dx], src, alpha );
|
|
}
|
|
dst = (u32*) ( (u8*) (dst) + job->dstPitch );
|
|
}
|
|
}
|
|
|
|
// Blitter Operation
|
|
enum eBlitter
|
|
{
|
|
BLITTER_INVALID = 0,
|
|
BLITTER_COLOR,
|
|
BLITTER_COLOR_ALPHA,
|
|
BLITTER_TEXTURE,
|
|
BLITTER_TEXTURE_ALPHA_BLEND,
|
|
BLITTER_TEXTURE_ALPHA_COLOR_BLEND
|
|
};
|
|
|
|
typedef void (*tExecuteBlit) ( const SBlitJob * job );
|
|
|
|
|
|
/*!
|
|
*/
|
|
struct blitterTable
|
|
{
|
|
eBlitter operation;
|
|
s32 destFormat;
|
|
s32 sourceFormat;
|
|
tExecuteBlit func;
|
|
};
|
|
|
|
static const blitterTable blitTable[] =
|
|
{
|
|
{ BLITTER_TEXTURE, -2, -2, executeBlit_TextureCopy_x_to_x },
|
|
{ BLITTER_TEXTURE, video::ECF_A1R5G5B5, video::ECF_A8R8G8B8, executeBlit_TextureCopy_32_to_16 },
|
|
{ BLITTER_TEXTURE, video::ECF_A1R5G5B5, video::ECF_R8G8B8, executeBlit_TextureCopy_24_to_16 },
|
|
{ BLITTER_TEXTURE, video::ECF_A8R8G8B8, video::ECF_A1R5G5B5, executeBlit_TextureCopy_16_to_32 },
|
|
{ BLITTER_TEXTURE, video::ECF_A8R8G8B8, video::ECF_R8G8B8, executeBlit_TextureCopy_24_to_32 },
|
|
{ BLITTER_TEXTURE, video::ECF_R8G8B8, video::ECF_A1R5G5B5, executeBlit_TextureCopy_16_to_24 },
|
|
{ BLITTER_TEXTURE, video::ECF_R8G8B8, video::ECF_A8R8G8B8, executeBlit_TextureCopy_32_to_24 },
|
|
{ BLITTER_TEXTURE_ALPHA_BLEND, video::ECF_A1R5G5B5, video::ECF_A1R5G5B5, executeBlit_TextureBlend_16_to_16 },
|
|
{ BLITTER_TEXTURE_ALPHA_BLEND, video::ECF_A8R8G8B8, video::ECF_A8R8G8B8, executeBlit_TextureBlend_32_to_32 },
|
|
{ BLITTER_TEXTURE_ALPHA_COLOR_BLEND, video::ECF_A1R5G5B5, video::ECF_A1R5G5B5, executeBlit_TextureBlendColor_16_to_16 },
|
|
{ BLITTER_TEXTURE_ALPHA_COLOR_BLEND, video::ECF_A8R8G8B8, video::ECF_A8R8G8B8, executeBlit_TextureBlendColor_32_to_32 },
|
|
{ BLITTER_COLOR, video::ECF_A1R5G5B5, -1, executeBlit_Color_16_to_16 },
|
|
{ BLITTER_COLOR, video::ECF_A8R8G8B8, -1, executeBlit_Color_32_to_32 },
|
|
{ BLITTER_COLOR_ALPHA, video::ECF_A1R5G5B5, -1, executeBlit_ColorAlpha_16_to_16 },
|
|
{ BLITTER_COLOR_ALPHA, video::ECF_A8R8G8B8, -1, executeBlit_ColorAlpha_32_to_32 },
|
|
{ BLITTER_INVALID, -1, -1, 0 }
|
|
};
|
|
|
|
|
|
static inline tExecuteBlit getBlitter2( eBlitter operation,const video::IImage * dest,const video::IImage * source )
|
|
{
|
|
video::ECOLOR_FORMAT sourceFormat = (video::ECOLOR_FORMAT) ( source ? source->getColorFormat() : -1 );
|
|
video::ECOLOR_FORMAT destFormat = (video::ECOLOR_FORMAT) ( dest ? dest->getColorFormat() : -1 );
|
|
|
|
const blitterTable * b = blitTable;
|
|
|
|
while ( b->operation != BLITTER_INVALID )
|
|
{
|
|
if ( b->operation == operation )
|
|
{
|
|
if (( b->destFormat == -1 || b->destFormat == destFormat ) &&
|
|
( b->sourceFormat == -1 || b->sourceFormat == sourceFormat ) )
|
|
return b->func;
|
|
else
|
|
if ( b->destFormat == -2 && ( sourceFormat == destFormat ) )
|
|
return b->func;
|
|
}
|
|
b += 1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
|
|
// bounce clipping to texture
|
|
inline void setClip ( AbsRectangle &out, const core::rect<s32> *clip,
|
|
const video::IImage * tex, s32 passnative )
|
|
{
|
|
if ( clip && 0 == tex && passnative )
|
|
{
|
|
out.x0 = clip->UpperLeftCorner.X;
|
|
out.x1 = clip->LowerRightCorner.X;
|
|
out.y0 = clip->UpperLeftCorner.Y;
|
|
out.y1 = clip->LowerRightCorner.Y;
|
|
return;
|
|
}
|
|
|
|
const s32 w = tex ? tex->getDimension().Width : 0;
|
|
const s32 h = tex ? tex->getDimension().Height : 0;
|
|
if ( clip )
|
|
{
|
|
out.x0 = core::s32_clamp ( clip->UpperLeftCorner.X, 0, w );
|
|
out.x1 = core::s32_clamp ( clip->LowerRightCorner.X, out.x0, w );
|
|
out.y0 = core::s32_clamp ( clip->UpperLeftCorner.Y, 0, h );
|
|
out.y1 = core::s32_clamp ( clip->LowerRightCorner.Y, out.y0, h );
|
|
}
|
|
else
|
|
{
|
|
out.x0 = 0;
|
|
out.y0 = 0;
|
|
out.x1 = w;
|
|
out.y1 = h;
|
|
}
|
|
|
|
}
|
|
|
|
/*!
|
|
a generic 2D Blitter
|
|
*/
|
|
static s32 Blit(eBlitter operation,
|
|
video::IImage * dest,
|
|
const core::rect<s32> *destClipping,
|
|
const core::position2d<s32> *destPos,
|
|
video::IImage * const source,
|
|
const core::rect<s32> *sourceClipping,
|
|
u32 argb)
|
|
{
|
|
tExecuteBlit blitter = getBlitter2( operation, dest, source );
|
|
if ( 0 == blitter )
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
// Clipping
|
|
AbsRectangle sourceClip;
|
|
AbsRectangle destClip;
|
|
AbsRectangle v;
|
|
|
|
SBlitJob job;
|
|
|
|
setClip ( sourceClip, sourceClipping, source, 1 );
|
|
setClip ( destClip, destClipping, dest, 0 );
|
|
|
|
v.x0 = destPos ? destPos->X : 0;
|
|
v.y0 = destPos ? destPos->Y : 0;
|
|
v.x1 = v.x0 + ( sourceClip.x1 - sourceClip.x0 );
|
|
v.y1 = v.y0 + ( sourceClip.y1 - sourceClip.y0 );
|
|
|
|
if ( !intersect( job.Dest, destClip, v ) )
|
|
return 0;
|
|
|
|
job.width = job.Dest.x1 - job.Dest.x0;
|
|
job.height = job.Dest.y1 - job.Dest.y0;
|
|
|
|
job.Source.x0 = sourceClip.x0 + ( job.Dest.x0 - v.x0 );
|
|
job.Source.x1 = job.Source.x0 + job.width;
|
|
job.Source.y0 = sourceClip.y0 + ( job.Dest.y0 - v.y0 );
|
|
job.Source.y1 = job.Source.y0 + job.height;
|
|
|
|
job.argb = argb;
|
|
|
|
if ( source )
|
|
{
|
|
job.srcPitch = source->getPitch();
|
|
job.srcPixelMul = source->getBytesPerPixel();
|
|
job.src = (void*) ( (u8*) source->lock() + ( job.Source.y0 * job.srcPitch ) + ( job.Source.x0 * job.srcPixelMul ) );
|
|
}
|
|
else
|
|
{
|
|
// use srcPitch for color operation on dest
|
|
job.srcPitch = job.width * dest->getBytesPerPixel();
|
|
}
|
|
|
|
job.dstPitch = dest->getPitch();
|
|
job.dstPixelMul = dest->getBytesPerPixel();
|
|
job.dst = (void*) ( (u8*) dest->lock() + ( job.Dest.y0 * job.dstPitch ) + ( job.Dest.x0 * job.dstPixelMul ) );
|
|
|
|
blitter( &job );
|
|
|
|
if ( source )
|
|
source->unlock();
|
|
|
|
if ( dest )
|
|
dest->unlock();
|
|
|
|
return 1;
|
|
}
|
|
|
|
}
|
|
|
|
#endif
|
|
|