Milestone 5: deliver embedded RDP sessions and lifecycle hardening
This commit is contained in:
Keith Smith
470
third_party/FreeRDP/libfreerdp/gdi/graphics.c
vendored
Normal file
470
third_party/FreeRDP/libfreerdp/gdi/graphics.c
vendored
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@@ -0,0 +1,470 @@
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/**
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* FreeRDP: A Remote Desktop Protocol Implementation
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* Graphical Objects
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*
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* Copyright 2011 Marc-Andre Moreau <marcandre.moreau@gmail.com>
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* Copyright 2016 Armin Novak <armin.novak@thincast.com>
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* Copyright 2016 Thincast Technologies GmbH
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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 <winpr/crt.h>
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#include <freerdp/log.h>
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#include <freerdp/freerdp.h>
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#include <freerdp/gdi/dc.h>
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#include <freerdp/gdi/shape.h>
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#include <freerdp/gdi/region.h>
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#include <freerdp/gdi/bitmap.h>
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#include "clipping.h"
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#include "drawing.h"
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#include "brush.h"
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#include "graphics.h"
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#define TAG FREERDP_TAG("gdi")
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/* Bitmap Class */
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HGDI_BITMAP gdi_create_bitmap(rdpGdi* gdi, UINT32 nWidth, UINT32 nHeight, UINT32 SrcFormat,
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BYTE* data)
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{
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UINT32 nSrcStep = 0;
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UINT32 nDstStep = 0;
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BYTE* pSrcData = nullptr;
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BYTE* pDstData = nullptr;
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HGDI_BITMAP bitmap = nullptr;
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if (!gdi)
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return nullptr;
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nDstStep = nWidth * FreeRDPGetBytesPerPixel(gdi->dstFormat);
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pDstData = winpr_aligned_malloc(1ull * nHeight * nDstStep, 16);
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if (!pDstData)
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return nullptr;
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pSrcData = data;
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nSrcStep = nWidth * FreeRDPGetBytesPerPixel(SrcFormat);
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if (!freerdp_image_copy_no_overlap(pDstData, gdi->dstFormat, nDstStep, 0, 0, nWidth, nHeight,
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pSrcData, SrcFormat, nSrcStep, 0, 0, &gdi->palette,
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FREERDP_FLIP_NONE))
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{
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winpr_aligned_free(pDstData);
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return nullptr;
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}
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bitmap = gdi_CreateBitmap(nWidth, nHeight, gdi->dstFormat, pDstData);
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return bitmap;
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}
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static BOOL gdi_Bitmap_New(rdpContext* context, rdpBitmap* bitmap)
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{
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gdiBitmap* gdi_bitmap = nullptr;
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rdpGdi* gdi = context->gdi;
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gdi_bitmap = (gdiBitmap*)bitmap;
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gdi_bitmap->hdc = gdi_CreateCompatibleDC(gdi->hdc);
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if (!gdi_bitmap->hdc)
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return FALSE;
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if (!bitmap->data)
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gdi_bitmap->bitmap = gdi_CreateCompatibleBitmap(gdi->hdc, bitmap->width, bitmap->height);
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else
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{
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UINT32 format = bitmap->format;
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gdi_bitmap->bitmap =
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gdi_create_bitmap(gdi, bitmap->width, bitmap->height, format, bitmap->data);
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}
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if (!gdi_bitmap->bitmap)
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{
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gdi_DeleteDC(gdi_bitmap->hdc);
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gdi_bitmap->hdc = nullptr;
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return FALSE;
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}
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gdi_bitmap->hdc->format = gdi_bitmap->bitmap->format;
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gdi_SelectObject(gdi_bitmap->hdc, (HGDIOBJECT)gdi_bitmap->bitmap);
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gdi_bitmap->org_bitmap = nullptr;
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return TRUE;
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}
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static void gdi_Bitmap_Free(WINPR_ATTR_UNUSED rdpContext* context, rdpBitmap* bitmap)
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{
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gdiBitmap* gdi_bitmap = (gdiBitmap*)bitmap;
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if (gdi_bitmap)
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{
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if (gdi_bitmap->hdc)
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gdi_SelectObject(gdi_bitmap->hdc, (HGDIOBJECT)gdi_bitmap->org_bitmap);
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gdi_DeleteObject((HGDIOBJECT)gdi_bitmap->bitmap);
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gdi_DeleteDC(gdi_bitmap->hdc);
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winpr_aligned_free(bitmap->data);
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}
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free(bitmap);
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}
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static BOOL gdi_Bitmap_Paint(rdpContext* context, rdpBitmap* bitmap)
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{
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gdiBitmap* gdi_bitmap = (gdiBitmap*)bitmap;
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UINT32 width = bitmap->right - bitmap->left + 1;
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UINT32 height = bitmap->bottom - bitmap->top + 1;
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return gdi_BitBlt(context->gdi->primary->hdc, WINPR_ASSERTING_INT_CAST(int, bitmap->left),
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WINPR_ASSERTING_INT_CAST(int, bitmap->top),
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WINPR_ASSERTING_INT_CAST(int, width), WINPR_ASSERTING_INT_CAST(int, height),
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gdi_bitmap->hdc, 0, 0, GDI_SRCCOPY, &context->gdi->palette);
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}
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static BOOL gdi_Bitmap_Decompress(rdpContext* context, rdpBitmap* bitmap, const BYTE* pSrcData,
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UINT32 DstWidth, UINT32 DstHeight, UINT32 bpp, UINT32 length,
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BOOL compressed, UINT32 codecId)
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{
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UINT32 SrcSize = length;
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rdpGdi* gdi = context->gdi;
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UINT32 size = DstWidth * DstHeight;
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bitmap->compressed = FALSE;
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bitmap->format = gdi->dstFormat;
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if ((FreeRDPGetBytesPerPixel(bitmap->format) == 0) || (DstWidth == 0) || (DstHeight == 0) ||
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(DstWidth > UINT32_MAX / DstHeight) ||
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(size > (UINT32_MAX / FreeRDPGetBytesPerPixel(bitmap->format))))
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{
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WLog_ERR(TAG, "invalid input data");
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return FALSE;
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}
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size *= FreeRDPGetBytesPerPixel(bitmap->format);
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bitmap->length = size;
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bitmap->data = (BYTE*)winpr_aligned_malloc(bitmap->length, 16);
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if (!bitmap->data)
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return FALSE;
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if (compressed)
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{
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if ((codecId == RDP_CODEC_ID_REMOTEFX) || (codecId == RDP_CODEC_ID_IMAGE_REMOTEFX))
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{
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REGION16 invalidRegion = WINPR_C_ARRAY_INIT;
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region16_init(&invalidRegion);
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const BOOL rc =
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rfx_process_message(context->codecs->rfx, pSrcData, SrcSize, bitmap->left,
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bitmap->top, bitmap->data, bitmap->format, gdi->stride,
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WINPR_ASSERTING_INT_CAST(UINT32, gdi->height), &invalidRegion);
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region16_uninit(&invalidRegion);
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if (!rc)
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{
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WLog_ERR(TAG, "rfx_process_message failed");
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return FALSE;
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}
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}
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else if (codecId == RDP_CODEC_ID_NSCODEC)
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{
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const int status = nsc_process_message(
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context->codecs->nsc, 32, DstWidth, DstHeight, pSrcData, SrcSize, bitmap->data,
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bitmap->format, 0, 0, 0, DstWidth, DstHeight, FREERDP_FLIP_VERTICAL);
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if (status < 1)
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{
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WLog_ERR(TAG, "nsc_process_message failed");
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return FALSE;
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}
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return freerdp_image_copy_no_overlap(bitmap->data, bitmap->format, 0, 0, 0, DstWidth,
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DstHeight, pSrcData, PIXEL_FORMAT_XRGB32, 0, 0, 0,
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&gdi->palette, FREERDP_FLIP_VERTICAL);
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}
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else if (bpp < 32)
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{
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if (!interleaved_decompress(context->codecs->interleaved, pSrcData, SrcSize, DstWidth,
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DstHeight, bpp, bitmap->data, bitmap->format, 0, 0, 0,
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DstWidth, DstHeight, &gdi->palette))
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{
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WLog_ERR(TAG, "interleaved_decompress failed");
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return FALSE;
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}
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}
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else
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{
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const BOOL fidelity =
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freerdp_settings_get_bool(context->settings, FreeRDP_DrawAllowDynamicColorFidelity);
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freerdp_planar_switch_bgr(context->codecs->planar, fidelity);
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if (!freerdp_bitmap_decompress_planar(context->codecs->planar, pSrcData, SrcSize,
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DstWidth, DstHeight, bitmap->data, bitmap->format,
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0, 0, 0, DstWidth, DstHeight, TRUE))
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{
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WLog_ERR(TAG, "freerdp_bitmap_decompress_planar failed");
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return FALSE;
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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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const UINT32 SrcFormat = gdi_get_pixel_format(bpp);
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const size_t sbpp = FreeRDPGetBytesPerPixel(SrcFormat);
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const size_t dbpp = FreeRDPGetBytesPerPixel(bitmap->format);
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if ((sbpp == 0) || (dbpp == 0))
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return FALSE;
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else
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{
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const size_t dstSize = SrcSize * dbpp / sbpp;
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if (dstSize < bitmap->length)
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{
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WLog_ERR(TAG, "dstSize %" PRIuz " < bitmap->length %" PRIu32, dstSize,
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bitmap->length);
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return FALSE;
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}
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}
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if (!freerdp_image_copy_no_overlap(bitmap->data, bitmap->format, 0, 0, 0, DstWidth,
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DstHeight, pSrcData, SrcFormat, 0, 0, 0, &gdi->palette,
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FREERDP_FLIP_VERTICAL))
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{
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WLog_ERR(TAG, "freerdp_image_copy failed");
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return FALSE;
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}
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}
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return TRUE;
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}
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static BOOL gdi_Bitmap_SetSurface(rdpContext* context, rdpBitmap* bitmap, BOOL primary)
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{
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rdpGdi* gdi = nullptr;
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if (!context)
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return FALSE;
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gdi = context->gdi;
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if (!gdi)
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return FALSE;
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if (primary)
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gdi->drawing = gdi->primary;
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else
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gdi->drawing = (gdiBitmap*)bitmap;
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return TRUE;
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}
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/* Glyph Class */
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static BOOL gdi_Glyph_New(rdpContext* context, rdpGlyph* glyph)
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{
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if (!context || !glyph)
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return FALSE;
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gdiGlyph* gdi_glyph = (gdiGlyph*)glyph;
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gdi_glyph->hdc = gdi_GetDC();
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if (!gdi_glyph->hdc)
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return FALSE;
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gdi_glyph->hdc->format = PIXEL_FORMAT_MONO;
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BYTE* data = freerdp_glyph_convert_ex(glyph->cx, glyph->cy, glyph->aj, glyph->cb);
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if (!data)
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{
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gdi_DeleteDC(gdi_glyph->hdc);
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return FALSE;
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}
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gdi_glyph->bitmap = gdi_CreateBitmap(glyph->cx, glyph->cy, PIXEL_FORMAT_MONO, data);
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if (!gdi_glyph->bitmap)
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{
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gdi_DeleteDC(gdi_glyph->hdc);
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winpr_aligned_free(data);
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return FALSE;
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}
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gdi_SelectObject(gdi_glyph->hdc, (HGDIOBJECT)gdi_glyph->bitmap);
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gdi_glyph->org_bitmap = nullptr;
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return TRUE;
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}
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static void gdi_Glyph_Free(WINPR_ATTR_UNUSED rdpContext* context, rdpGlyph* glyph)
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{
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gdiGlyph* gdi_glyph = nullptr;
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gdi_glyph = (gdiGlyph*)glyph;
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if (gdi_glyph)
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{
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gdi_SelectObject(gdi_glyph->hdc, (HGDIOBJECT)gdi_glyph->org_bitmap);
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gdi_DeleteObject((HGDIOBJECT)gdi_glyph->bitmap);
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gdi_DeleteDC(gdi_glyph->hdc);
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free(glyph->aj);
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free(glyph);
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}
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}
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static BOOL gdi_Glyph_Draw(rdpContext* context, const rdpGlyph* glyph, INT32 x, INT32 y, INT32 w,
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INT32 h, INT32 sx, INT32 sy, BOOL fOpRedundant)
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{
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const gdiGlyph* gdi_glyph = nullptr;
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rdpGdi* gdi = nullptr;
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HGDI_BRUSH brush = nullptr;
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BOOL rc = FALSE;
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if (!context || !glyph)
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return FALSE;
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gdi = context->gdi;
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gdi_glyph = (const gdiGlyph*)glyph;
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if (!fOpRedundant)
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{
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GDI_RECT rect = WINPR_C_ARRAY_INIT;
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if (x > 0)
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rect.left = x;
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if (y > 0)
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rect.top = y;
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if (x + w > 0)
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rect.right = x + w - 1;
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if (y + h > 0)
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rect.bottom = y + h - 1;
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if ((rect.left < rect.right) && (rect.top < rect.bottom))
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{
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brush = gdi_CreateSolidBrush(gdi->drawing->hdc->bkColor);
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if (!brush)
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return FALSE;
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const BOOL res = gdi_FillRect(gdi->drawing->hdc, &rect, brush);
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gdi_DeleteObject((HGDIOBJECT)brush);
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if (!res)
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return res;
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}
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}
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brush = gdi_CreateSolidBrush(gdi->drawing->hdc->textColor);
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if (!brush)
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return FALSE;
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gdi_SelectObject(gdi->drawing->hdc, (HGDIOBJECT)brush);
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rc = gdi_BitBlt(gdi->drawing->hdc, x, y, w, h, gdi_glyph->hdc, sx, sy, GDI_GLYPH_ORDER,
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&context->gdi->palette);
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gdi_DeleteObject((HGDIOBJECT)brush);
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return rc;
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}
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static BOOL gdi_Glyph_BeginDraw(rdpContext* context, INT32 x, INT32 y, INT32 width, INT32 height,
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UINT32 bgcolor, UINT32 fgcolor, BOOL fOpRedundant)
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{
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if (!context || !context->gdi)
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return FALSE;
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rdpGdi* gdi = context->gdi;
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if (!gdi->drawing || !gdi->drawing->hdc)
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return FALSE;
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if (!fOpRedundant)
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{
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if (!gdi_decode_color(gdi, bgcolor, &bgcolor, nullptr))
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return FALSE;
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if (!gdi_decode_color(gdi, fgcolor, &fgcolor, nullptr))
|
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return FALSE;
|
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if (!gdi_SetClipRgn(gdi->drawing->hdc, x, y, width, height))
|
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return FALSE;
|
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gdi_SetTextColor(gdi->drawing->hdc, bgcolor);
|
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gdi_SetBkColor(gdi->drawing->hdc, fgcolor);
|
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|
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{
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GDI_RECT rect = WINPR_C_ARRAY_INIT;
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HGDI_BRUSH brush = gdi_CreateSolidBrush(fgcolor);
|
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|
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if (!brush)
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return FALSE;
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|
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if (x > 0)
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rect.left = x;
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|
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if (y > 0)
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rect.top = y;
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rect.right = x + width - 1;
|
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rect.bottom = y + height - 1;
|
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|
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BOOL res = TRUE;
|
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if ((x + width > rect.left) && (y + height > rect.top))
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res = gdi_FillRect(gdi->drawing->hdc, &rect, brush);
|
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|
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gdi_DeleteObject((HGDIOBJECT)brush);
|
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if (!res)
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return FALSE;
|
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}
|
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|
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return gdi_SetNullClipRgn(gdi->drawing->hdc);
|
||||
}
|
||||
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
static BOOL gdi_Glyph_EndDraw(rdpContext* context, WINPR_ATTR_UNUSED INT32 x,
|
||||
WINPR_ATTR_UNUSED INT32 y, WINPR_ATTR_UNUSED INT32 width,
|
||||
WINPR_ATTR_UNUSED INT32 height, WINPR_ATTR_UNUSED UINT32 bgcolor,
|
||||
WINPR_ATTR_UNUSED UINT32 fgcolor)
|
||||
{
|
||||
rdpGdi* gdi = nullptr;
|
||||
|
||||
if (!context || !context->gdi)
|
||||
return FALSE;
|
||||
|
||||
gdi = context->gdi;
|
||||
|
||||
if (!gdi->drawing || !gdi->drawing->hdc)
|
||||
return FALSE;
|
||||
|
||||
return gdi_SetNullClipRgn(gdi->drawing->hdc);
|
||||
}
|
||||
|
||||
/* Graphics Module */
|
||||
BOOL gdi_register_graphics(rdpGraphics* graphics)
|
||||
{
|
||||
rdpBitmap bitmap = WINPR_C_ARRAY_INIT;
|
||||
rdpGlyph glyph = WINPR_C_ARRAY_INIT;
|
||||
bitmap.size = sizeof(gdiBitmap);
|
||||
bitmap.New = gdi_Bitmap_New;
|
||||
bitmap.Free = gdi_Bitmap_Free;
|
||||
bitmap.Paint = gdi_Bitmap_Paint;
|
||||
bitmap.Decompress = gdi_Bitmap_Decompress;
|
||||
bitmap.SetSurface = gdi_Bitmap_SetSurface;
|
||||
graphics_register_bitmap(graphics, &bitmap);
|
||||
glyph.size = sizeof(gdiGlyph);
|
||||
glyph.New = gdi_Glyph_New;
|
||||
glyph.Free = gdi_Glyph_Free;
|
||||
glyph.Draw = gdi_Glyph_Draw;
|
||||
glyph.BeginDraw = gdi_Glyph_BeginDraw;
|
||||
glyph.EndDraw = gdi_Glyph_EndDraw;
|
||||
graphics_register_glyph(graphics, &glyph);
|
||||
return TRUE;
|
||||
}
|
||||
Reference in New Issue
Block a user