Torque3D/Engine/source/gfx/bitmap/bitmapUtils.cpp
2012-09-19 11:15:01 -04:00

285 lines
8.9 KiB
C++

//-----------------------------------------------------------------------------
// Copyright (c) 2012 GarageGames, LLC
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to
// deal in the Software without restriction, including without limitation the
// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
// sell copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
// IN THE SOFTWARE.
//-----------------------------------------------------------------------------
#include "gfx/bitmap/bitmapUtils.h"
#include "platform/platform.h"
void bitmapExtrude5551_c(const void *srcMip, void *mip, U32 srcHeight, U32 srcWidth)
{
const U16 *src = (const U16 *) srcMip;
U16 *dst = (U16 *) mip;
U32 stride = srcHeight != 1 ? srcWidth : 0;
U32 width = srcWidth >> 1;
U32 height = srcHeight >> 1;
if (width == 0) width = 1;
if (height == 0) height = 1;
if (srcWidth != 1)
{
for(U32 y = 0; y < height; y++)
{
for(U32 x = 0; x < width; x++)
{
U32 a = src[0];
U32 b = src[1];
U32 c = src[stride];
U32 d = src[stride+1];
#if defined(TORQUE_BIG_ENDIAN)
dst[x] = ((( (a >> 10) + (b >> 10) + (c >> 10) + (d >> 10)) >> 2) << 10) |
((( ((a >> 5) & 0x1F) + ((b >> 5) & 0x1F) + ((c >> 5) & 0x1F) + ((d >> 5) & 0x1F)) >> 2) << 5) |
((( ((a >> 0) & 0x1F) + ((b >> 0) & 0x1F) + ((c >> 0) & 0x1F) + ((d >> 0) & 0x1F)) >> 2) << 0);
#else
dst[x] = ((( (a >> 11) + (b >> 11) + (c >> 11) + (d >> 11)) >> 2) << 11) |
((( ((a >> 6) & 0x1F) + ((b >> 6) & 0x1F) + ((c >> 6) & 0x1F) + ((d >> 6) & 0x1F)) >> 2) << 6) |
((( ((a >> 1) & 0x1F) + ((b >> 1) & 0x1F) + ((c >> 1) & 0x1F) + ((d >> 1) & 0x1F)) >> 2) << 1);
#endif
src += 2;
}
src += stride;
dst += width;
}
}
else
{
for(U32 y = 0; y < height; y++)
{
U32 a = src[0];
U32 c = src[stride];
#if defined(TORQUE_OS_MAC)
dst[y] = ((( (a >> 10) + (c >> 10)) >> 1) << 10) |
((( ((a >> 5) & 0x1F) + ((c >> 5) & 0x1f)) >> 1) << 5) |
((( ((a >> 0) & 0x1F) + ((c >> 0) & 0x1f)) >> 1) << 0);
#else
dst[y] = ((( (a >> 11) + (c >> 11)) >> 1) << 11) |
((( ((a >> 6) & 0x1f) + ((c >> 6) & 0x1f)) >> 1) << 6) |
((( ((a >> 1) & 0x1F) + ((c >> 1) & 0x1f)) >> 1) << 1);
#endif
src += 1 + stride;
}
}
}
//--------------------------------------------------------------------------
void bitmapExtrudeRGB_c(const void *srcMip, void *mip, U32 srcHeight, U32 srcWidth)
{
const U8 *src = (const U8 *) srcMip;
U8 *dst = (U8 *) mip;
U32 stride = srcHeight != 1 ? (srcWidth) * 3 : 0;
U32 width = srcWidth >> 1;
U32 height = srcHeight >> 1;
if (width == 0) width = 1;
if (height == 0) height = 1;
if (srcWidth != 1)
{
for(U32 y = 0; y < height; y++)
{
for(U32 x = 0; x < width; x++)
{
*dst++ = (U32(*src) + U32(src[3]) + U32(src[stride]) + U32(src[stride+3]) + 2) >> 2;
src++;
*dst++ = (U32(*src) + U32(src[3]) + U32(src[stride]) + U32(src[stride+3]) + 2) >> 2;
src++;
*dst++ = (U32(*src) + U32(src[3]) + U32(src[stride]) + U32(src[stride+3]) + 2) >> 2;
src += 4;
}
src += stride; // skip
}
}
else
{
for(U32 y = 0; y < height; y++)
{
*dst++ = (U32(*src) + U32(src[stride]) + 1) >> 1;
src++;
*dst++ = (U32(*src) + U32(src[stride]) + 1) >> 1;
src++;
*dst++ = (U32(*src) + U32(src[stride]) + 1) >> 1;
src += 4;
src += stride; // skip
}
}
}
//--------------------------------------------------------------------------
void bitmapExtrudeRGBA_c(const void *srcMip, void *mip, U32 srcHeight, U32 srcWidth)
{
const U8 *src = (const U8 *) srcMip;
U8 *dst = (U8 *) mip;
U32 stride = srcHeight != 1 ? (srcWidth) * 4 : 0;
U32 width = srcWidth >> 1;
U32 height = srcHeight >> 1;
if (width == 0) width = 1;
if (height == 0) height = 1;
if (srcWidth != 1)
{
for(U32 y = 0; y < height; y++)
{
for(U32 x = 0; x < width; x++)
{
*dst++ = (U32(*src) + U32(src[4]) + U32(src[stride]) + U32(src[stride+4]) + 2) >> 2;
src++;
*dst++ = (U32(*src) + U32(src[4]) + U32(src[stride]) + U32(src[stride+4]) + 2) >> 2;
src++;
*dst++ = (U32(*src) + U32(src[4]) + U32(src[stride]) + U32(src[stride+4]) + 2) >> 2;
src++;
*dst++ = (U32(*src) + U32(src[4]) + U32(src[stride]) + U32(src[stride+4]) + 2) >> 2;
src += 5;
}
src += stride; // skip
}
}
else
{
for(U32 y = 0; y < height; y++)
{
*dst++ = (U32(*src) + U32(src[stride]) + 1) >> 1;
src++;
*dst++ = (U32(*src) + U32(src[stride]) + 1) >> 1;
src++;
*dst++ = (U32(*src) + U32(src[stride]) + 1) >> 1;
src++;
*dst++ = (U32(*src) + U32(src[stride]) + 1) >> 1;
src += 5;
src += stride; // skip
}
}
}
void (*bitmapExtrude5551)(const void *srcMip, void *mip, U32 height, U32 width) = bitmapExtrude5551_c;
void (*bitmapExtrudeRGB)(const void *srcMip, void *mip, U32 srcHeight, U32 srcWidth) = bitmapExtrudeRGB_c;
void (*bitmapExtrudeRGBA)(const void *srcMip, void *mip, U32 srcHeight, U32 srcWidth) = bitmapExtrudeRGBA_c;
//--------------------------------------------------------------------------
void bitmapConvertRGB_to_1555_c(U8 *src, U32 pixels)
{
U16 *dst = (U16 *)src;
for(U32 j = 0; j < pixels; j++)
{
U32 r = src[0] >> 3;
U32 g = src[1] >> 3;
U32 b = src[2] >> 3;
#if defined(TORQUE_OS_MAC)
*dst++ = 0x8000 | (b << 10) | (g << 5) | (r << 0);
#else
*dst++ = b | (g << 5) | (r << 10) | 0x8000;
#endif
src += 3;
}
}
void (*bitmapConvertRGB_to_1555)(U8 *src, U32 pixels) = bitmapConvertRGB_to_1555_c;
//------------------------------------------------------------------------------
void bitmapConvertRGB_to_5551_c(U8 *src, U32 pixels)
{
U16 *dst = (U16 *)src;
for(U32 j = 0; j < pixels; j++)
{
U32 r = src[0] >> 3;
U32 g = src[1] >> 3;
U32 b = src[2] >> 3;
#if defined(TORQUE_OS_MAC)
*dst++ = (1 << 15) | (b << 10) | (g << 5) | (r << 0);
#else
*dst++ = (b << 1) | (g << 6) | (r << 11) | 1;
#endif
src += 3;
}
}
void (*bitmapConvertRGB_to_5551)(U8 *src, U32 pixels) = bitmapConvertRGB_to_5551_c;
//------------------------------------------------------------------------------
void bitmapConvertRGB_to_RGBX_c( U8 **src, U32 pixels )
{
const U8 *oldBits = *src;
U8 *newBits = new U8[pixels * 4];
dMemset( newBits, 0xFF, pixels * 4 ); // This is done to set alpha values -patw
// Copy the bits over to the new memory
for( U32 i = 0; i < pixels; i++ )
dMemcpy( &newBits[i * 4], &oldBits[i * 3], sizeof(U8) * 3 );
// Now hose the old bits
delete [] *src;
*src = newBits;
}
void (*bitmapConvertRGB_to_RGBX)( U8 **src, U32 pixels ) = bitmapConvertRGB_to_RGBX_c;
//------------------------------------------------------------------------------
void bitmapConvertRGBX_to_RGB_c( U8 **src, U32 pixels )
{
const U8 *oldBits = *src;
U8 *newBits = new U8[pixels * 3];
// Copy the bits over to the new memory
for( U32 i = 0; i < pixels; i++ )
dMemcpy( &newBits[i * 3], &oldBits[i * 4], sizeof(U8) * 3 );
// Now hose the old bits
delete [] *src;
*src = newBits;
}
void (*bitmapConvertRGBX_to_RGB)( U8 **src, U32 pixels ) = bitmapConvertRGBX_to_RGB_c;
//------------------------------------------------------------------------------
void bitmapConvertA8_to_RGBA_c( U8 **src, U32 pixels )
{
const U8 *oldBits = *src;
U8 *newBits = new U8[pixels * 4];
// Zero new bits
dMemset( newBits, 0, pixels * 4 );
// Copy Alpha values
for( U32 i = 0; i < pixels; i++ )
newBits[i * 4 + 3] = oldBits[i];
// Now hose the old bits
delete [] *src;
*src = newBits;
}
void (*bitmapConvertA8_to_RGBA)( U8 **src, U32 pixels ) = bitmapConvertA8_to_RGBA_c;