client/DirectFB/df_graphics.c

   1 /**
   2  * FreeRDP: A Remote Desktop Protocol Client
   3  * DirectFB Graphical Objects
   4  *
   5  * Copyright 2011 Marc-Andre Moreau <marcandre.moreau@gmail.com>
   6  *
   7  * Licensed under the Apache License, Version 2.0 (the "License");
   8  * you may not use this file except in compliance with the License.
   9  * You may obtain a copy of the License at
  10  *
  11  *     http://www.apache.org/licenses/LICENSE-2.0
  12  *
  13  * Unless required by applicable law or agreed to in writing, software
  14  * distributed under the License is distributed on an "AS IS" BASIS,
  15  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  16  * See the License for the specific language governing permissions and
  17  * limitations under the License.
  18  */
  19
  20 #include <freerdp/utils/memory.h>
  21
  22 #include "df_graphics.h"
  23
  24 /* Pointer Class */
  25
  26 void df_Pointer_New(rdpContext* context, rdpPointer* pointer)
  27 {
  28         dfInfo* dfi;
  29         DFBResult result;
  30         dfPointer* df_pointer;
  31         DFBSurfaceDescription dsc;
  32
  33         dfi = ((dfContext*) context)->dfi;
  34         df_pointer = (dfPointer*) pointer;
  35
  36         dsc.flags = DSDESC_CAPS | DSDESC_WIDTH | DSDESC_HEIGHT | DSDESC_PIXELFORMAT;
  37         dsc.caps = DSCAPS_SYSTEMONLY;
  38         dsc.width = pointer->width;
  39         dsc.height = pointer->height;
  40         dsc.pixelformat = DSPF_ARGB;
  41
  42         result = dfi->dfb->CreateSurface(dfi->dfb, &dsc, &(df_pointer->surface));
  43
  44         if (result == DFB_OK)
  45         {
  46                 int pitch;
  47                 uint8* point = NULL;
  48
  49                 df_pointer->xhot = pointer->xPos;
  50                 df_pointer->yhot = pointer->yPos;
  51
  52                 result = df_pointer->surface->Lock(df_pointer->surface,
  53                                 DSLF_WRITE, (void**) &point, &pitch);
  54
  55                 if (result != DFB_OK)
  56                 {
  57                         DirectFBErrorFatal("Error while creating pointer surface", result);
  58                         return;
  59                 }
  60
  61                 if ((pointer->andMaskData != 0) && (pointer->xorMaskData != 0))
  62                 {
  63                         freerdp_alpha_cursor_convert(point, pointer->xorMaskData, pointer->andMaskData,
  64                                         pointer->width, pointer->height, pointer->xorBpp, dfi->clrconv);
  65                 }
  66
  67                 if (pointer->xorBpp > 24)
  68                 {
  69                         freerdp_image_swap_color_order(point, pointer->width, pointer->height);
  70                 }
  71
  72                 df_pointer->surface->Unlock(df_pointer->surface);
  73         }
  74 }
  75
  76 void df_Pointer_Free(rdpContext* context, rdpPointer* pointer)
  77 {
  78         dfPointer* df_pointer = (dfPointer*) pointer;
  79         df_pointer->surface->Release(df_pointer->surface);
  80 }
  81
  82 void df_Pointer_Set(rdpContext* context, rdpPointer* pointer)
  83 {
  84         dfInfo* dfi;
  85         DFBResult result;
  86         dfPointer* df_pointer;
  87
  88         dfi = ((dfContext*) context)->dfi;
  89         df_pointer = (dfPointer*) pointer;
  90
  91         dfi->layer->SetCooperativeLevel(dfi->layer, DLSCL_ADMINISTRATIVE);
  92
  93         result = dfi->layer->SetCursorShape(dfi->layer,
  94                         df_pointer->surface, df_pointer->xhot, df_pointer->yhot);
  95
  96         if (result != DFB_OK)
  97         {
  98                 DirectFBErrorFatal("SetCursorShape Error", result);
  99                 return;
 100         }
 101
 102         dfi->layer->SetCooperativeLevel(dfi->layer, DLSCL_SHARED);
 103 }
 104
 105 /* Graphics Module */
 106
 107 void df_register_graphics(rdpGraphics* graphics)
 108 {
 109         rdpPointer* pointer;
 110
 111         pointer = xnew(rdpPointer);
 112         pointer->size = sizeof(dfPointer);
 113
 114         pointer->New = df_Pointer_New;
 115         pointer->Free = df_Pointer_Free;
 116         pointer->Set = df_Pointer_Set;
 117
 118         graphics_register_pointer(graphics, pointer);
 119         xfree(pointer);
 120 }
 121