138 lines
3.2 KiB
C
138 lines
3.2 KiB
C
/* prim_16to32bpp.c
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* 16-bit to 32-bit color conversion (widely used)
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* vi:ts=4 sw=4:
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*
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* The general routine was leveraged from freerdp/codec/color.c.
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*
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* Copyright 2010 Marc-Andre Moreau <marcandre.moreau@gmail.com>
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* (c) Copyright 2014 Hewlett-Packard Development Company, L.P.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <freerdp/types.h>
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#include <freerdp/primitives.h>
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#include <freerdp/codec/color.h>
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#include "prim_internal.h"
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#include "prim_16to32bpp.h"
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/* ------------------------------------------------------------------------- */
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pstatus_t general_RGB565ToARGB_16u32u_C3C4(
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const UINT16* pSrc, INT32 srcStep,
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UINT32* pDst, INT32 dstStep,
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UINT32 width, UINT32 height,
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BOOL alpha, BOOL invert)
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{
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const UINT16* src16;
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UINT32* dst32;
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int x,y;
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int srcRowBump, dstRowBump;
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BYTE red, green, blue;
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src16 = pSrc;
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dst32 = pDst;
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srcRowBump = (srcStep - (width * sizeof(UINT16))) / sizeof(UINT16);
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dstRowBump = (dstStep - (width * sizeof(UINT32))) / sizeof(UINT32);
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/* Loops are separated so if-decisions are not made in the loop. */
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if (alpha)
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{
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if (invert)
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{
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for (y=0; y<height; y++)
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{
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for (x=0; x<width; x++)
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{
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UINT32 pixel = (UINT32) *src16++;
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GetBGR16(red, green, blue, pixel);
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pixel = ARGB32(0xFF, red, green, blue);
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*dst32++ = pixel;
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}
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src16 += srcRowBump;
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dst32 += dstRowBump;
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}
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}
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else
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{
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for (y=0; y<height; y++)
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{
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for (x=0; x<width; x++)
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{
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UINT32 pixel = (UINT32) *src16++;
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GetBGR16(red, green, blue, pixel);
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pixel = ABGR32(0xFF, red, green, blue);
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*dst32++ = pixel;
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}
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src16 += srcRowBump;
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dst32 += dstRowBump;
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}
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}
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}
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else
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{
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if (invert)
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{
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for (y=0; y<height; y++)
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{
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for (x=0; x<width; x++)
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{
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UINT32 pixel = (UINT32) *src16++;
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GetBGR16(red, green, blue, pixel);
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pixel = RGB32(red, green, blue);
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*dst32++ = pixel;
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}
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src16 += srcRowBump;
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dst32 += dstRowBump;
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}
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}
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else
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{
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for (y=0; y<height; y++)
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{
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for (x=0; x<width; x++)
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{
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UINT32 pixel = (UINT32) *src16++;
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GetBGR16(red, green, blue, pixel);
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pixel = BGR32(red, green, blue);
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*dst32++ = pixel;
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}
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src16 += srcRowBump;
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dst32 += dstRowBump;
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}
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}
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}
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return PRIMITIVES_SUCCESS;
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}
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/* ------------------------------------------------------------------------- */
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void primitives_init_16to32bpp(
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primitives_t *prims)
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{
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prims->RGB565ToARGB_16u32u_C3C4 = general_RGB565ToARGB_16u32u_C3C4;
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primitives_init_16to32bpp_opt(prims);
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}
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/* ------------------------------------------------------------------------- */
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void primitives_deinit_16to32bpp(
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primitives_t *prims)
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{
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/* Nothing to do. */
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}
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