FreeRDP/libfreerdp/primitives/prim_internal.h
akallabeth 6c6e31217d Ignore alpha channel during color conversion.
Most GFX graphics do not carry alpha data. Keep the original
alpha value unless specified otherwise.
2021-02-25 14:18:01 +01:00

287 lines
7.5 KiB
C

/* prim_internal.h
* vi:ts=4 sw=4
*
* (c) Copyright 2012 Hewlett-Packard Development Company, L.P.
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License. You may obtain
* a copy of the License at http://www.apache.org/licenses/LICENSE-2.0.
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
* or implied. See the License for the specific language governing
* permissions and limitations under the License. Algorithms used by
* this code may be covered by patents by HP, Microsoft, or other parties.
*
*/
#ifndef FREERDP_LIB_PRIM_INTERNAL_H
#define FREERDP_LIB_PRIM_INTERNAL_H
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <freerdp/primitives.h>
#include <freerdp/api.h>
#ifdef __GNUC__
#define PRIM_ALIGN_128 __attribute__((aligned(16)))
#else
#ifdef _WIN32
#define PRIM_ALIGN_128 __declspec(align(16))
#endif
#endif
#if defined(WITH_SSE2) || defined(WITH_NEON) || defined(WITH_OPENCL)
#define HAVE_OPTIMIZED_PRIMITIVES 1
#endif
#if defined(WITH_SSE2) || defined(WITH_NEON)
#define HAVE_CPU_OPTIMIZED_PRIMITIVES 1
#endif
#if defined(WITH_SSE2)
/* Use lddqu for unaligned; load for 16-byte aligned. */
#define LOAD_SI128(_ptr_) \
(((ULONG_PTR)(_ptr_)&0x0f) ? _mm_lddqu_si128((__m128i*)(_ptr_)) \
: _mm_load_si128((__m128i*)(_ptr_)))
#endif
static INLINE BYTE* writePixelBGRA(BYTE* dst, DWORD formatSize, UINT32 format, BYTE R, BYTE G,
BYTE B, BYTE A)
{
WINPR_UNUSED(formatSize);
WINPR_UNUSED(format);
*dst++ = B;
*dst++ = G;
*dst++ = R;
*dst++ = A;
return dst;
}
static INLINE BYTE* writePixelBGRX(BYTE* dst, DWORD formatSize, UINT32 format, BYTE R, BYTE G,
BYTE B, BYTE A)
{
WINPR_UNUSED(formatSize);
WINPR_UNUSED(format);
WINPR_UNUSED(A);
*dst++ = B;
*dst++ = G;
*dst++ = R;
dst++; /* Do not touch alpha */
return dst;
}
static INLINE BYTE* writePixelRGBA(BYTE* dst, DWORD formatSize, UINT32 format, BYTE R, BYTE G,
BYTE B, BYTE A)
{
WINPR_UNUSED(formatSize);
WINPR_UNUSED(format);
*dst++ = R;
*dst++ = G;
*dst++ = B;
*dst++ = A;
return dst;
}
static INLINE BYTE* writePixelRGBX(BYTE* dst, DWORD formatSize, UINT32 format, BYTE R, BYTE G,
BYTE B, BYTE A)
{
WINPR_UNUSED(formatSize);
WINPR_UNUSED(format);
WINPR_UNUSED(A);
*dst++ = R;
*dst++ = G;
*dst++ = B;
dst++; /* Do not touch alpha */
return dst;
}
static INLINE BYTE* writePixelABGR(BYTE* dst, DWORD formatSize, UINT32 format, BYTE R, BYTE G,
BYTE B, BYTE A)
{
WINPR_UNUSED(formatSize);
WINPR_UNUSED(format);
*dst++ = A;
*dst++ = B;
*dst++ = G;
*dst++ = R;
return dst;
}
static INLINE BYTE* writePixelXBGR(BYTE* dst, DWORD formatSize, UINT32 format, BYTE R, BYTE G,
BYTE B, BYTE A)
{
WINPR_UNUSED(formatSize);
WINPR_UNUSED(format);
WINPR_UNUSED(A);
dst++; /* Do not touch alpha */
*dst++ = B;
*dst++ = G;
*dst++ = R;
return dst;
}
static INLINE BYTE* writePixelARGB(BYTE* dst, DWORD formatSize, UINT32 format, BYTE R, BYTE G,
BYTE B, BYTE A)
{
WINPR_UNUSED(formatSize);
WINPR_UNUSED(format);
*dst++ = A;
*dst++ = R;
*dst++ = G;
*dst++ = B;
return dst;
}
static INLINE BYTE* writePixelXRGB(BYTE* dst, DWORD formatSize, UINT32 format, BYTE R, BYTE G,
BYTE B, BYTE A)
{
WINPR_UNUSED(formatSize);
WINPR_UNUSED(format);
WINPR_UNUSED(A);
dst++; /* Do not touch alpha */
*dst++ = R;
*dst++ = G;
*dst++ = B;
return dst;
}
static INLINE BYTE* writePixelGenericAlpha(BYTE* dst, DWORD formatSize, UINT32 format, BYTE R,
BYTE G, BYTE B, BYTE A)
{
UINT32 color = FreeRDPGetColor(format, R, G, B, A);
WriteColor(dst, format, color);
return dst + formatSize;
}
static INLINE BYTE* writePixelGeneric(BYTE* dst, DWORD formatSize, UINT32 format, BYTE R, BYTE G,
BYTE B, BYTE A)
{
UINT32 color = FreeRDPGetColor(format, R, G, B, A);
WriteColorIgnoreAlpha(dst, format, color);
return dst + formatSize;
}
typedef BYTE* (*fkt_writePixel)(BYTE*, DWORD, UINT32, BYTE, BYTE, BYTE, BYTE);
static INLINE fkt_writePixel getPixelWriteFunction(DWORD format, BOOL useAlpha)
{
switch (format)
{
case PIXEL_FORMAT_ARGB32:
case PIXEL_FORMAT_XRGB32:
return useAlpha ? writePixelARGB : writePixelXRGB;
case PIXEL_FORMAT_ABGR32:
case PIXEL_FORMAT_XBGR32:
return useAlpha ? writePixelABGR : writePixelXBGR;
case PIXEL_FORMAT_RGBA32:
case PIXEL_FORMAT_RGBX32:
return useAlpha ? writePixelRGBA : writePixelRGBX;
case PIXEL_FORMAT_BGRA32:
case PIXEL_FORMAT_BGRX32:
return useAlpha ? writePixelBGRA : writePixelBGRX;
default:
return useAlpha ? writePixelGenericAlpha : writePixelGeneric;
}
}
static INLINE BYTE CLIP(INT32 X)
{
if (X > 255L)
return 255L;
if (X < 0L)
return 0L;
return X;
}
/**
* | R | ( | 256 0 403 | | Y | )
* | G | = ( | 256 -48 -120 | | U - 128 | ) >> 8
* | B | ( | 256 475 0 | | V - 128 | )
*/
static INLINE INT32 C(INT32 Y)
{
return (Y)-0L;
}
static INLINE INT32 D(INT32 U)
{
return (U)-128L;
}
static INLINE INT32 E(INT32 V)
{
return (V)-128L;
}
static INLINE BYTE YUV2R(INT32 Y, INT32 U, INT32 V)
{
const INT32 r = (256L * C(Y) + 0L * D(U) + 403L * E(V));
const INT32 r8 = r >> 8L;
return CLIP(r8);
}
static INLINE BYTE YUV2G(INT32 Y, INT32 U, INT32 V)
{
const INT32 g = (256L * C(Y) - 48L * D(U) - 120L * E(V));
const INT32 g8 = g >> 8L;
return CLIP(g8);
}
static INLINE BYTE YUV2B(INT32 Y, INT32 U, INT32 V)
{
const INT32 b = (256L * C(Y) + 475L * D(U) + 0L * E(V));
const INT32 b8 = b >> 8L;
return CLIP(b8);
}
/* Function prototypes for all the init/deinit routines. */
FREERDP_LOCAL void primitives_init_copy(primitives_t* prims);
FREERDP_LOCAL void primitives_init_set(primitives_t* prims);
FREERDP_LOCAL void primitives_init_add(primitives_t* prims);
FREERDP_LOCAL void primitives_init_andor(primitives_t* prims);
FREERDP_LOCAL void primitives_init_shift(primitives_t* prims);
FREERDP_LOCAL void primitives_init_sign(primitives_t* prims);
FREERDP_LOCAL void primitives_init_alphaComp(primitives_t* prims);
FREERDP_LOCAL void primitives_init_colors(primitives_t* prims);
FREERDP_LOCAL void primitives_init_YCoCg(primitives_t* prims);
FREERDP_LOCAL void primitives_init_YUV(primitives_t* prims);
#if defined(WITH_SSE2) || defined(WITH_NEON)
FREERDP_LOCAL void primitives_init_copy_opt(primitives_t* prims);
FREERDP_LOCAL void primitives_init_set_opt(primitives_t* prims);
FREERDP_LOCAL void primitives_init_add_opt(primitives_t* prims);
FREERDP_LOCAL void primitives_init_andor_opt(primitives_t* prims);
FREERDP_LOCAL void primitives_init_shift_opt(primitives_t* prims);
FREERDP_LOCAL void primitives_init_sign_opt(primitives_t* prims);
FREERDP_LOCAL void primitives_init_alphaComp_opt(primitives_t* prims);
FREERDP_LOCAL void primitives_init_colors_opt(primitives_t* prims);
FREERDP_LOCAL void primitives_init_YCoCg_opt(primitives_t* prims);
FREERDP_LOCAL void primitives_init_YUV_opt(primitives_t* prims);
#endif
#if defined(WITH_OPENCL)
FREERDP_LOCAL BOOL primitives_init_opencl(primitives_t* prims);
#endif
FREERDP_LOCAL primitives_t* primitives_get_by_type(DWORD type);
#endif /* FREERDP_LIB_PRIM_INTERNAL_H */