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* FreeRDP: A Remote Desktop Protocol Client
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* Windows Graphical Objects
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* Copyright 2010-2011 Marc-Andre Moreau <marcandre.moreau@gmail.com>
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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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* http://www.apache.org/licenses/LICENSE-2.0
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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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#include <freerdp/utils/memory.h>
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#include <freerdp/codec/bitmap.h>
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#include "wf_graphics.h"
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HBITMAP wf_create_dib(wfInfo* wfi, int width, int height, int bpp, uint8* data, uint8** pdata)
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* See: http://msdn.microsoft.com/en-us/library/dd183376
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* if biHeight is positive, the bitmap is bottom-up
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* if biHeight is negative, the bitmap is top-down
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* Since we get top-down bitmaps, let's keep it that way
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negHeight = (height < 0) ? height : height * (-1);
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bmi.bmiHeader.biSize = sizeof(BITMAPINFO);
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bmi.bmiHeader.biWidth = width;
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bmi.bmiHeader.biHeight = negHeight;
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bmi.bmiHeader.biPlanes = 1;
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bmi.bmiHeader.biBitCount = 24;
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bmi.bmiHeader.biCompression = BI_RGB;
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bitmap = CreateDIBSection(hdc, &bmi, DIB_RGB_COLORS, (void**) &cdata, NULL, 0);
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freerdp_image_convert(data, cdata, width, height, bpp, 24, wfi->clrconv);
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wfBitmap* wf_image_new(wfInfo* wfi, int width, int height, int bpp, uint8* data)
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image = (wfBitmap*) malloc(sizeof(wfBitmap));
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image->hdc = CreateCompatibleDC(hdc);
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image->bitmap = CreateCompatibleBitmap(hdc, width, height);
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image->bitmap = wf_create_dib(wfi, width, height, bpp, data, &(image->pdata));
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image->org_bitmap = (HBITMAP) SelectObject(image->hdc, image->bitmap);
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wfBitmap* wf_bitmap_new(wfInfo* wfi, int width, int height, int bpp, uint8* data)
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bitmap = (wfBitmap*) malloc(sizeof(wfBitmap));
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bitmap->hdc = CreateCompatibleDC(hdc);
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bitmap->bitmap = wf_create_dib(wfi, width, height, bpp, data, &(bitmap->pdata));
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bitmap->org_bitmap = (HBITMAP) SelectObject(bitmap->hdc, bitmap->bitmap);
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void wf_image_free(wfBitmap* image)
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SelectObject(image->hdc, image->org_bitmap);
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DeleteObject(image->bitmap);
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DeleteDC(image->hdc);
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void wf_Bitmap_New(rdpContext* context, rdpBitmap* bitmap)
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wfBitmap* wf_bitmap = (wfBitmap*) bitmap;
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wfInfo* wfi = ((wfContext*) context)->wfi;
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wf_bitmap = (wfBitmap*) bitmap;
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wf_bitmap->hdc = CreateCompatibleDC(hdc);
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if (bitmap->data == NULL)
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wf_bitmap->bitmap = CreateCompatibleBitmap(hdc, bitmap->width, bitmap->height);
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wf_bitmap->bitmap = wf_create_dib(wfi, bitmap->width, bitmap->height, bitmap->bpp, bitmap->data, NULL);
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wf_bitmap->org_bitmap = (HBITMAP) SelectObject(wf_bitmap->hdc, wf_bitmap->bitmap);
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ReleaseDC(NULL, hdc);
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void wf_Bitmap_Free(rdpContext* context, rdpBitmap* bitmap)
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wfBitmap* wf_bitmap = (wfBitmap*) bitmap;
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SelectObject(wf_bitmap->hdc, wf_bitmap->org_bitmap);
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DeleteObject(wf_bitmap->bitmap);
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DeleteDC(wf_bitmap->hdc);
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void wf_Bitmap_Paint(rdpContext* context, rdpBitmap* bitmap)
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wfBitmap* wf_bitmap = (wfBitmap*) bitmap;
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wfInfo* wfi = ((wfContext*) context)->wfi;
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width = bitmap->right - bitmap->left + 1;
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height = bitmap->bottom - bitmap->top + 1;
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BitBlt(wfi->primary->hdc, bitmap->left, bitmap->top,
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width, height, wf_bitmap->hdc, 0, 0, SRCCOPY);
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wf_invalidate_region(wfi, bitmap->left, bitmap->top, width, height);
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void wf_Bitmap_Decompress(rdpContext* context, rdpBitmap* bitmap,
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uint8* data, int width, int height, int bpp, int length, boolean compressed)
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size = width * height * (bpp / 8);
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if (bitmap->data == NULL)
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bitmap->data = (uint8*) xmalloc(size);
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bitmap->data = (uint8*) xrealloc(bitmap->data, size);
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status = bitmap_decompress(data, bitmap->data, width, height, length, bpp, bpp);
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printf("Bitmap Decompression Failed\n");
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freerdp_image_flip(data, bitmap->data, width, height, bpp);
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bitmap->compressed = false;
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bitmap->length = size;
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void wf_Bitmap_SetSurface(rdpContext* context, rdpBitmap* bitmap, boolean primary)
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wfInfo* wfi = ((wfContext*) context)->wfi;
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wfi->drawing = wfi->primary;
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wfi->drawing = (wfBitmap*) bitmap;
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void wf_Pointer_New(rdpContext* context, rdpPointer* pointer)
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void wf_Pointer_Free(rdpContext* context, rdpPointer* pointer)
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void wf_Pointer_Set(rdpContext* context, rdpPointer* pointer)
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/* Graphics Module */
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void wf_register_graphics(rdpGraphics* graphics)
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memset(&bitmap, 0, sizeof(rdpBitmap));
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bitmap.size = sizeof(wfBitmap);
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bitmap.New = wf_Bitmap_New;
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bitmap.Free = wf_Bitmap_Free;
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bitmap.Paint = wf_Bitmap_Paint;
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bitmap.Decompress = wf_Bitmap_Decompress;
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bitmap.SetSurface = wf_Bitmap_SetSurface;
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memset(&pointer, 0, sizeof(rdpPointer));
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pointer.size = sizeof(wfPointer);
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pointer.New = wf_Pointer_New;
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pointer.Free = wf_Pointer_Free;
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pointer.Set = wf_Pointer_Set;
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graphics_register_bitmap(graphics, &bitmap);
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graphics_register_pointer(graphics, &pointer);