mirror of https://github.com/FreeRDP/FreeRDP
317 lines
8.8 KiB
C
317 lines
8.8 KiB
C
/**
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* FreeRDP: A Remote Desktop Protocol Implementation
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* RemoteFX Codec Library - Encode
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*
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* Copyright 2011 Vic Lee
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* Copyright 2011 Norbert Federa <norbert.federa@thincast.com>
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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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#include <freerdp/config.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <winpr/crt.h>
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#include <winpr/collections.h>
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#include <freerdp/primitives.h>
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#include "rfx_types.h"
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#include "rfx_rlgr.h"
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#include "rfx_differential.h"
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#include "rfx_quantization.h"
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#include "rfx_dwt.h"
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#include "rfx_encode.h"
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#define MINMAX(_v, _l, _h) ((_v) < (_l) ? (_l) : ((_v) > (_h) ? (_h) : (_v)))
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static void rfx_encode_format_rgb(const BYTE* WINPR_RESTRICT rgb_data, int width, int height,
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int rowstride, UINT32 pixel_format,
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const BYTE* WINPR_RESTRICT palette, INT16* WINPR_RESTRICT r_buf,
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INT16* WINPR_RESTRICT g_buf, INT16* WINPR_RESTRICT b_buf)
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{
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int x_exceed = 0;
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int y_exceed = 0;
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const BYTE* src = NULL;
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INT16 r = 0;
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INT16 g = 0;
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INT16 b = 0;
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INT16* r_last = NULL;
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INT16* g_last = NULL;
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INT16* b_last = NULL;
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x_exceed = 64 - width;
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y_exceed = 64 - height;
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for (int y = 0; y < height; y++)
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{
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src = rgb_data + y * rowstride;
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switch (pixel_format)
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{
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case PIXEL_FORMAT_BGRX32:
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case PIXEL_FORMAT_BGRA32:
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for (int x = 0; x < width; x++)
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{
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*b_buf++ = (INT16)(*src++);
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*g_buf++ = (INT16)(*src++);
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*r_buf++ = (INT16)(*src++);
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src++;
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}
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break;
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case PIXEL_FORMAT_XBGR32:
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case PIXEL_FORMAT_ABGR32:
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for (int x = 0; x < width; x++)
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{
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src++;
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*b_buf++ = (INT16)(*src++);
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*g_buf++ = (INT16)(*src++);
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*r_buf++ = (INT16)(*src++);
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}
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break;
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case PIXEL_FORMAT_RGBX32:
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case PIXEL_FORMAT_RGBA32:
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for (int x = 0; x < width; x++)
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{
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*r_buf++ = (INT16)(*src++);
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*g_buf++ = (INT16)(*src++);
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*b_buf++ = (INT16)(*src++);
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src++;
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}
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break;
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case PIXEL_FORMAT_XRGB32:
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case PIXEL_FORMAT_ARGB32:
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for (int x = 0; x < width; x++)
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{
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src++;
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*r_buf++ = (INT16)(*src++);
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*g_buf++ = (INT16)(*src++);
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*b_buf++ = (INT16)(*src++);
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}
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break;
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case PIXEL_FORMAT_BGR24:
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for (int x = 0; x < width; x++)
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{
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*b_buf++ = (INT16)(*src++);
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*g_buf++ = (INT16)(*src++);
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*r_buf++ = (INT16)(*src++);
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}
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break;
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case PIXEL_FORMAT_RGB24:
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for (int x = 0; x < width; x++)
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{
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*r_buf++ = (INT16)(*src++);
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*g_buf++ = (INT16)(*src++);
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*b_buf++ = (INT16)(*src++);
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}
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break;
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case PIXEL_FORMAT_BGR16:
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for (int x = 0; x < width; x++)
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{
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*b_buf++ = (INT16)(((*(src + 1)) & 0xF8) | ((*(src + 1)) >> 5));
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*g_buf++ = (INT16)((((*(src + 1)) & 0x07) << 5) | (((*src) & 0xE0) >> 3));
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*r_buf++ = (INT16)((((*src) & 0x1F) << 3) | (((*src) >> 2) & 0x07));
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src += 2;
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}
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break;
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case PIXEL_FORMAT_RGB16:
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for (int x = 0; x < width; x++)
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{
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*r_buf++ = (INT16)(((*(src + 1)) & 0xF8) | ((*(src + 1)) >> 5));
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*g_buf++ = (INT16)((((*(src + 1)) & 0x07) << 5) | (((*src) & 0xE0) >> 3));
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*b_buf++ = (INT16)((((*src) & 0x1F) << 3) | (((*src) >> 2) & 0x07));
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src += 2;
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}
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break;
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case PIXEL_FORMAT_RGB8:
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if (!palette)
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break;
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for (int x = 0; x < width; x++)
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{
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int shift = 0;
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BYTE idx = 0;
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shift = (7 - (x % 8));
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idx = ((*src) >> shift) & 1;
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idx |= (((*(src + 1)) >> shift) & 1) << 1;
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idx |= (((*(src + 2)) >> shift) & 1) << 2;
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idx |= (((*(src + 3)) >> shift) & 1) << 3;
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idx *= 3;
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*r_buf++ = (INT16)palette[idx];
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*g_buf++ = (INT16)palette[idx + 1];
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*b_buf++ = (INT16)palette[idx + 2];
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if (shift == 0)
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src += 4;
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}
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break;
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case PIXEL_FORMAT_A4:
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if (!palette)
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break;
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for (int x = 0; x < width; x++)
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{
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int idx = (*src) * 3;
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*r_buf++ = (INT16)palette[idx];
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*g_buf++ = (INT16)palette[idx + 1];
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*b_buf++ = (INT16)palette[idx + 2];
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src++;
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}
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break;
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default:
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break;
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}
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/* Fill the horizontal region outside of 64x64 tile size with the right-most pixel for best
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* quality */
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if (x_exceed > 0)
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{
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r = *(r_buf - 1);
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g = *(g_buf - 1);
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b = *(b_buf - 1);
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for (int x = 0; x < x_exceed; x++)
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{
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*r_buf++ = r;
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*g_buf++ = g;
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*b_buf++ = b;
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}
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}
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}
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/* Fill the vertical region outside of 64x64 tile size with the last line. */
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if (y_exceed > 0)
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{
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r_last = r_buf - 64;
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g_last = g_buf - 64;
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b_last = b_buf - 64;
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while (y_exceed > 0)
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{
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CopyMemory(r_buf, r_last, 64 * sizeof(INT16));
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CopyMemory(g_buf, g_last, 64 * sizeof(INT16));
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CopyMemory(b_buf, b_last, 64 * sizeof(INT16));
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r_buf += 64;
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g_buf += 64;
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b_buf += 64;
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y_exceed--;
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}
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}
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}
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/* rfx_encode_rgb_to_ycbcr code now resides in the primitives library. */
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static void rfx_encode_component(RFX_CONTEXT* WINPR_RESTRICT context,
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const UINT32* WINPR_RESTRICT quantization_values,
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INT16* WINPR_RESTRICT data, BYTE* WINPR_RESTRICT buffer,
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int buffer_size, int* WINPR_RESTRICT size)
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{
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INT16* dwt_buffer = NULL;
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dwt_buffer = BufferPool_Take(context->priv->BufferPool, -1); /* dwt_buffer */
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PROFILER_ENTER(context->priv->prof_rfx_encode_component)
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PROFILER_ENTER(context->priv->prof_rfx_dwt_2d_encode)
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context->dwt_2d_encode(data, dwt_buffer);
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PROFILER_EXIT(context->priv->prof_rfx_dwt_2d_encode)
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PROFILER_ENTER(context->priv->prof_rfx_quantization_encode)
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context->quantization_encode(data, quantization_values);
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PROFILER_EXIT(context->priv->prof_rfx_quantization_encode)
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PROFILER_ENTER(context->priv->prof_rfx_differential_encode)
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rfx_differential_encode(data + 4032, 64);
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PROFILER_EXIT(context->priv->prof_rfx_differential_encode)
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PROFILER_ENTER(context->priv->prof_rfx_rlgr_encode)
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*size = context->rlgr_encode(context->mode, data, 4096, buffer, buffer_size);
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PROFILER_EXIT(context->priv->prof_rfx_rlgr_encode)
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PROFILER_EXIT(context->priv->prof_rfx_encode_component)
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BufferPool_Return(context->priv->BufferPool, dwt_buffer);
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}
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void rfx_encode_rgb(RFX_CONTEXT* WINPR_RESTRICT context, RFX_TILE* WINPR_RESTRICT tile)
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{
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union
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{
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const INT16** cpv;
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INT16** pv;
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} cnv;
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BYTE* pBuffer = NULL;
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INT16* pSrcDst[3];
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int YLen = 0;
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int CbLen = 0;
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int CrLen = 0;
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UINT32* YQuant = NULL;
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UINT32* CbQuant = NULL;
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UINT32* CrQuant = NULL;
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primitives_t* prims = primitives_get();
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static const prim_size_t roi_64x64 = { 64, 64 };
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if (!(pBuffer = (BYTE*)BufferPool_Take(context->priv->BufferPool, -1)))
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return;
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YLen = CbLen = CrLen = 0;
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YQuant = context->quants + (tile->quantIdxY * 10);
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CbQuant = context->quants + (tile->quantIdxCb * 10);
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CrQuant = context->quants + (tile->quantIdxCr * 10);
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pSrcDst[0] = (INT16*)((BYTE*)(&pBuffer[((8192 + 32) * 0) + 16])); /* y_r_buffer */
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pSrcDst[1] = (INT16*)((BYTE*)(&pBuffer[((8192 + 32) * 1) + 16])); /* cb_g_buffer */
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pSrcDst[2] = (INT16*)((BYTE*)(&pBuffer[((8192 + 32) * 2) + 16])); /* cr_b_buffer */
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PROFILER_ENTER(context->priv->prof_rfx_encode_rgb)
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PROFILER_ENTER(context->priv->prof_rfx_encode_format_rgb)
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rfx_encode_format_rgb(tile->data, tile->width, tile->height, tile->scanline,
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context->pixel_format, context->palette, pSrcDst[0], pSrcDst[1],
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pSrcDst[2]);
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PROFILER_EXIT(context->priv->prof_rfx_encode_format_rgb)
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PROFILER_ENTER(context->priv->prof_rfx_rgb_to_ycbcr)
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cnv.pv = pSrcDst;
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prims->RGBToYCbCr_16s16s_P3P3(cnv.cpv, 64 * sizeof(INT16), pSrcDst, 64 * sizeof(INT16),
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&roi_64x64);
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PROFILER_EXIT(context->priv->prof_rfx_rgb_to_ycbcr)
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/**
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* We need to clear the buffers as the RLGR encoder expects it to be initialized to zero.
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* This allows simplifying and improving the performance of the encoding process.
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*/
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ZeroMemory(tile->YData, 4096);
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ZeroMemory(tile->CbData, 4096);
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ZeroMemory(tile->CrData, 4096);
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rfx_encode_component(context, YQuant, pSrcDst[0], tile->YData, 4096, &YLen);
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rfx_encode_component(context, CbQuant, pSrcDst[1], tile->CbData, 4096, &CbLen);
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rfx_encode_component(context, CrQuant, pSrcDst[2], tile->CrData, 4096, &CrLen);
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tile->YLen = (UINT16)YLen;
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tile->CbLen = (UINT16)CbLen;
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tile->CrLen = (UINT16)CrLen;
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PROFILER_EXIT(context->priv->prof_rfx_encode_rgb)
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BufferPool_Return(context->priv->BufferPool, pBuffer);
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}
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