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-rw-r--r--libfreerdp/codec/rfx_encode.c313
1 files changed, 313 insertions, 0 deletions
diff --git a/libfreerdp/codec/rfx_encode.c b/libfreerdp/codec/rfx_encode.c
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+++ b/libfreerdp/codec/rfx_encode.c
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+/**
+ * FreeRDP: A Remote Desktop Protocol Implementation
+ * RemoteFX Codec Library - Encode
+ *
+ * Copyright 2011 Vic Lee
+ * Copyright 2011 Norbert Federa <norbert.federa@thincast.com>
+ *
+ * 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.
+ */
+
+#include <freerdp/config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include <winpr/crt.h>
+#include <winpr/collections.h>
+
+#include <freerdp/primitives.h>
+
+#include "rfx_types.h"
+#include "rfx_rlgr.h"
+#include "rfx_differential.h"
+#include "rfx_quantization.h"
+#include "rfx_dwt.h"
+
+#include "rfx_encode.h"
+
+#define MINMAX(_v, _l, _h) ((_v) < (_l) ? (_l) : ((_v) > (_h) ? (_h) : (_v)))
+
+static void rfx_encode_format_rgb(const BYTE* rgb_data, int width, int height, int rowstride,
+ UINT32 pixel_format, const BYTE* palette, INT16* r_buf,
+ INT16* g_buf, INT16* b_buf)
+{
+ int x_exceed = 0;
+ int y_exceed = 0;
+ const BYTE* src = NULL;
+ INT16 r = 0;
+ INT16 g = 0;
+ INT16 b = 0;
+ INT16* r_last = NULL;
+ INT16* g_last = NULL;
+ INT16* b_last = NULL;
+ x_exceed = 64 - width;
+ y_exceed = 64 - height;
+
+ for (int y = 0; y < height; y++)
+ {
+ src = rgb_data + y * rowstride;
+
+ switch (pixel_format)
+ {
+ case PIXEL_FORMAT_BGRX32:
+ case PIXEL_FORMAT_BGRA32:
+ for (int x = 0; x < width; x++)
+ {
+ *b_buf++ = (INT16)(*src++);
+ *g_buf++ = (INT16)(*src++);
+ *r_buf++ = (INT16)(*src++);
+ src++;
+ }
+
+ break;
+
+ case PIXEL_FORMAT_XBGR32:
+ case PIXEL_FORMAT_ABGR32:
+ for (int x = 0; x < width; x++)
+ {
+ src++;
+ *b_buf++ = (INT16)(*src++);
+ *g_buf++ = (INT16)(*src++);
+ *r_buf++ = (INT16)(*src++);
+ }
+
+ break;
+
+ case PIXEL_FORMAT_RGBX32:
+ case PIXEL_FORMAT_RGBA32:
+ for (int x = 0; x < width; x++)
+ {
+ *r_buf++ = (INT16)(*src++);
+ *g_buf++ = (INT16)(*src++);
+ *b_buf++ = (INT16)(*src++);
+ src++;
+ }
+
+ break;
+
+ case PIXEL_FORMAT_XRGB32:
+ case PIXEL_FORMAT_ARGB32:
+ for (int x = 0; x < width; x++)
+ {
+ src++;
+ *r_buf++ = (INT16)(*src++);
+ *g_buf++ = (INT16)(*src++);
+ *b_buf++ = (INT16)(*src++);
+ }
+
+ break;
+
+ case PIXEL_FORMAT_BGR24:
+ for (int x = 0; x < width; x++)
+ {
+ *b_buf++ = (INT16)(*src++);
+ *g_buf++ = (INT16)(*src++);
+ *r_buf++ = (INT16)(*src++);
+ }
+
+ break;
+
+ case PIXEL_FORMAT_RGB24:
+ for (int x = 0; x < width; x++)
+ {
+ *r_buf++ = (INT16)(*src++);
+ *g_buf++ = (INT16)(*src++);
+ *b_buf++ = (INT16)(*src++);
+ }
+
+ break;
+
+ case PIXEL_FORMAT_BGR16:
+ for (int x = 0; x < width; x++)
+ {
+ *b_buf++ = (INT16)(((*(src + 1)) & 0xF8) | ((*(src + 1)) >> 5));
+ *g_buf++ = (INT16)((((*(src + 1)) & 0x07) << 5) | (((*src) & 0xE0) >> 3));
+ *r_buf++ = (INT16)((((*src) & 0x1F) << 3) | (((*src) >> 2) & 0x07));
+ src += 2;
+ }
+
+ break;
+
+ case PIXEL_FORMAT_RGB16:
+ for (int x = 0; x < width; x++)
+ {
+ *r_buf++ = (INT16)(((*(src + 1)) & 0xF8) | ((*(src + 1)) >> 5));
+ *g_buf++ = (INT16)((((*(src + 1)) & 0x07) << 5) | (((*src) & 0xE0) >> 3));
+ *b_buf++ = (INT16)((((*src) & 0x1F) << 3) | (((*src) >> 2) & 0x07));
+ src += 2;
+ }
+
+ break;
+
+ case PIXEL_FORMAT_RGB8:
+ if (!palette)
+ break;
+
+ for (int x = 0; x < width; x++)
+ {
+ int shift = 0;
+ BYTE idx = 0;
+ shift = (7 - (x % 8));
+ idx = ((*src) >> shift) & 1;
+ idx |= (((*(src + 1)) >> shift) & 1) << 1;
+ idx |= (((*(src + 2)) >> shift) & 1) << 2;
+ idx |= (((*(src + 3)) >> shift) & 1) << 3;
+ idx *= 3;
+ *r_buf++ = (INT16)palette[idx];
+ *g_buf++ = (INT16)palette[idx + 1];
+ *b_buf++ = (INT16)palette[idx + 2];
+
+ if (shift == 0)
+ src += 4;
+ }
+
+ break;
+
+ case PIXEL_FORMAT_A4:
+ if (!palette)
+ break;
+
+ for (int x = 0; x < width; x++)
+ {
+ int idx = (*src) * 3;
+ *r_buf++ = (INT16)palette[idx];
+ *g_buf++ = (INT16)palette[idx + 1];
+ *b_buf++ = (INT16)palette[idx + 2];
+ src++;
+ }
+
+ break;
+
+ default:
+ break;
+ }
+
+ /* Fill the horizontal region outside of 64x64 tile size with the right-most pixel for best
+ * quality */
+ if (x_exceed > 0)
+ {
+ r = *(r_buf - 1);
+ g = *(g_buf - 1);
+ b = *(b_buf - 1);
+
+ for (int x = 0; x < x_exceed; x++)
+ {
+ *r_buf++ = r;
+ *g_buf++ = g;
+ *b_buf++ = b;
+ }
+ }
+ }
+
+ /* Fill the vertical region outside of 64x64 tile size with the last line. */
+ if (y_exceed > 0)
+ {
+ r_last = r_buf - 64;
+ g_last = g_buf - 64;
+ b_last = b_buf - 64;
+
+ while (y_exceed > 0)
+ {
+ CopyMemory(r_buf, r_last, 64 * sizeof(INT16));
+ CopyMemory(g_buf, g_last, 64 * sizeof(INT16));
+ CopyMemory(b_buf, b_last, 64 * sizeof(INT16));
+ r_buf += 64;
+ g_buf += 64;
+ b_buf += 64;
+ y_exceed--;
+ }
+ }
+}
+
+/* rfx_encode_rgb_to_ycbcr code now resides in the primitives library. */
+
+static void rfx_encode_component(RFX_CONTEXT* context, const UINT32* quantization_values,
+ INT16* data, BYTE* buffer, int buffer_size, int* size)
+{
+ INT16* dwt_buffer = NULL;
+ dwt_buffer = BufferPool_Take(context->priv->BufferPool, -1); /* dwt_buffer */
+ PROFILER_ENTER(context->priv->prof_rfx_encode_component)
+ PROFILER_ENTER(context->priv->prof_rfx_dwt_2d_encode)
+ context->dwt_2d_encode(data, dwt_buffer);
+ PROFILER_EXIT(context->priv->prof_rfx_dwt_2d_encode)
+ PROFILER_ENTER(context->priv->prof_rfx_quantization_encode)
+ context->quantization_encode(data, quantization_values);
+ PROFILER_EXIT(context->priv->prof_rfx_quantization_encode)
+ PROFILER_ENTER(context->priv->prof_rfx_differential_encode)
+ rfx_differential_encode(data + 4032, 64);
+ PROFILER_EXIT(context->priv->prof_rfx_differential_encode)
+ PROFILER_ENTER(context->priv->prof_rfx_rlgr_encode)
+ *size = context->rlgr_encode(context->mode, data, 4096, buffer, buffer_size);
+ PROFILER_EXIT(context->priv->prof_rfx_rlgr_encode)
+ PROFILER_EXIT(context->priv->prof_rfx_encode_component)
+ BufferPool_Return(context->priv->BufferPool, dwt_buffer);
+}
+
+void rfx_encode_rgb(RFX_CONTEXT* context, RFX_TILE* tile)
+{
+ union
+ {
+ const INT16** cpv;
+ INT16** pv;
+ } cnv;
+ BYTE* pBuffer = NULL;
+ INT16* pSrcDst[3];
+ int YLen = 0;
+ int CbLen = 0;
+ int CrLen = 0;
+ UINT32* YQuant = NULL;
+ UINT32* CbQuant = NULL;
+ UINT32* CrQuant = NULL;
+ primitives_t* prims = primitives_get();
+ static const prim_size_t roi_64x64 = { 64, 64 };
+
+ if (!(pBuffer = (BYTE*)BufferPool_Take(context->priv->BufferPool, -1)))
+ return;
+
+ YLen = CbLen = CrLen = 0;
+ YQuant = context->quants + (tile->quantIdxY * 10);
+ CbQuant = context->quants + (tile->quantIdxCb * 10);
+ CrQuant = context->quants + (tile->quantIdxCr * 10);
+ pSrcDst[0] = (INT16*)((BYTE*)(&pBuffer[((8192 + 32) * 0) + 16])); /* y_r_buffer */
+ pSrcDst[1] = (INT16*)((BYTE*)(&pBuffer[((8192 + 32) * 1) + 16])); /* cb_g_buffer */
+ pSrcDst[2] = (INT16*)((BYTE*)(&pBuffer[((8192 + 32) * 2) + 16])); /* cr_b_buffer */
+ PROFILER_ENTER(context->priv->prof_rfx_encode_rgb)
+ PROFILER_ENTER(context->priv->prof_rfx_encode_format_rgb)
+ rfx_encode_format_rgb(tile->data, tile->width, tile->height, tile->scanline,
+ context->pixel_format, context->palette, pSrcDst[0], pSrcDst[1],
+ pSrcDst[2]);
+ PROFILER_EXIT(context->priv->prof_rfx_encode_format_rgb)
+ PROFILER_ENTER(context->priv->prof_rfx_rgb_to_ycbcr)
+
+ cnv.pv = pSrcDst;
+ prims->RGBToYCbCr_16s16s_P3P3(cnv.cpv, 64 * sizeof(INT16), pSrcDst, 64 * sizeof(INT16),
+ &roi_64x64);
+ PROFILER_EXIT(context->priv->prof_rfx_rgb_to_ycbcr)
+ /**
+ * We need to clear the buffers as the RLGR encoder expects it to be initialized to zero.
+ * This allows simplifying and improving the performance of the encoding process.
+ */
+ ZeroMemory(tile->YData, 4096);
+ ZeroMemory(tile->CbData, 4096);
+ ZeroMemory(tile->CrData, 4096);
+ rfx_encode_component(context, YQuant, pSrcDst[0], tile->YData, 4096, &YLen);
+ rfx_encode_component(context, CbQuant, pSrcDst[1], tile->CbData, 4096, &CbLen);
+ rfx_encode_component(context, CrQuant, pSrcDst[2], tile->CrData, 4096, &CrLen);
+ tile->YLen = (UINT16)YLen;
+ tile->CbLen = (UINT16)CbLen;
+ tile->CrLen = (UINT16)CrLen;
+ PROFILER_EXIT(context->priv->prof_rfx_encode_rgb)
+ BufferPool_Return(context->priv->BufferPool, pBuffer);
+}
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