dlls/d2d1/state_block.c

   1 /*
   2  * Copyright 2015 Henri Verbeet for CodeWeavers
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Lesser General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2.1 of the License, or (at your option) any later version.
   8  *
   9  * This library is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Lesser General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Lesser General Public
  15  * License along with this library; if not, write to the Free Software
  16  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  17  */
  18
  19 #include "config.h"
  20 #include "wine/port.h"
  21
  22 #include "d2d1_private.h"
  23
  24 WINE_DEFAULT_DEBUG_CHANNEL(d2d);
  25
  26 static inline struct d2d_state_block *impl_from_ID2D1DrawingStateBlock(ID2D1DrawingStateBlock *iface)
  27 {
  28     return CONTAINING_RECORD(iface, struct d2d_state_block, ID2D1DrawingStateBlock_iface);
  29 }
  30
  31 static HRESULT STDMETHODCALLTYPE d2d_state_block_QueryInterface(ID2D1DrawingStateBlock *iface, REFIID iid, void **out)
  32 {
  33     TRACE("iface %p, iid %s, out %p.\n", iface, debugstr_guid(iid), out);
  34
  35     if (IsEqualGUID(iid, &IID_ID2D1DrawingStateBlock)
  36             || IsEqualGUID(iid, &IID_ID2D1Resource)
  37             || IsEqualGUID(iid, &IID_IUnknown))
  38     {
  39         ID2D1DrawingStateBlock_AddRef(iface);
  40         *out = iface;
  41         return S_OK;
  42     }
  43
  44     WARN("%s not implemented, returning E_NOINTERFACE.\n", debugstr_guid(iid));
  45
  46     *out = NULL;
  47     return E_NOINTERFACE;
  48 }
  49
  50 static ULONG STDMETHODCALLTYPE d2d_state_block_AddRef(ID2D1DrawingStateBlock *iface)
  51 {
  52     struct d2d_state_block *state_block = impl_from_ID2D1DrawingStateBlock(iface);
  53     ULONG refcount = InterlockedIncrement(&state_block->refcount);
  54
  55     TRACE("%p increasing refcount to %u.\n", iface, refcount);
  56
  57     return refcount;
  58 }
  59
  60 static ULONG STDMETHODCALLTYPE d2d_state_block_Release(ID2D1DrawingStateBlock *iface)
  61 {
  62     struct d2d_state_block *state_block = impl_from_ID2D1DrawingStateBlock(iface);
  63     ULONG refcount = InterlockedDecrement(&state_block->refcount);
  64
  65     TRACE("%p decreasing refcount to %u.\n", iface, refcount);
  66
  67     if (!refcount)
  68     {
  69         if (state_block->text_rendering_params)
  70             IDWriteRenderingParams_Release(state_block->text_rendering_params);
  71         HeapFree(GetProcessHeap(), 0, state_block);
  72     }
  73
  74     return refcount;
  75 }
  76
  77 static void STDMETHODCALLTYPE d2d_state_block_GetFactory(ID2D1DrawingStateBlock *iface, ID2D1Factory **factory)
  78 {
  79     FIXME("iface %p, factory %p stub!\n", iface, factory);
  80
  81     *factory = NULL;
  82 }
  83
  84 static void STDMETHODCALLTYPE d2d_state_block_GetDescription(ID2D1DrawingStateBlock *iface,
  85         D2D1_DRAWING_STATE_DESCRIPTION *desc)
  86 {
  87     struct d2d_state_block *state_block = impl_from_ID2D1DrawingStateBlock(iface);
  88
  89     TRACE("iface %p, desc %p.\n", iface, desc);
  90
  91     *desc = state_block->drawing_state;
  92 }
  93
  94 static void STDMETHODCALLTYPE d2d_state_block_SetDescription(ID2D1DrawingStateBlock *iface,
  95         const D2D1_DRAWING_STATE_DESCRIPTION *desc)
  96 {
  97     struct d2d_state_block *state_block = impl_from_ID2D1DrawingStateBlock(iface);
  98
  99     TRACE("iface %p, desc %p.\n", iface, desc);
 100
 101     state_block->drawing_state = *desc;
 102 }
 103
 104 static void STDMETHODCALLTYPE d2d_state_block_SetTextRenderingParams(ID2D1DrawingStateBlock *iface,
 105         IDWriteRenderingParams *text_rendering_params)
 106 {
 107     struct d2d_state_block *state_block = impl_from_ID2D1DrawingStateBlock(iface);
 108
 109     TRACE("iface %p, text_rendering_params %p.\n", iface, text_rendering_params);
 110
 111     if (text_rendering_params)
 112         IDWriteRenderingParams_AddRef(text_rendering_params);
 113     if (state_block->text_rendering_params)
 114         IDWriteRenderingParams_Release(state_block->text_rendering_params);
 115     state_block->text_rendering_params = text_rendering_params;
 116 }
 117
 118 static void STDMETHODCALLTYPE d2d_state_block_GetTextRenderingParams(ID2D1DrawingStateBlock *iface,
 119         IDWriteRenderingParams **text_rendering_params)
 120 {
 121     struct d2d_state_block *state_block = impl_from_ID2D1DrawingStateBlock(iface);
 122
 123     TRACE("iface %p, text_rendering_params %p.\n", iface, text_rendering_params);
 124
 125     if ((*text_rendering_params = state_block->text_rendering_params))
 126         IDWriteRenderingParams_AddRef(*text_rendering_params);
 127 }
 128
 129 static const struct ID2D1DrawingStateBlockVtbl d2d_state_block_vtbl =
 130 {
 131     d2d_state_block_QueryInterface,
 132     d2d_state_block_AddRef,
 133     d2d_state_block_Release,
 134     d2d_state_block_GetFactory,
 135     d2d_state_block_GetDescription,
 136     d2d_state_block_SetDescription,
 137     d2d_state_block_SetTextRenderingParams,
 138     d2d_state_block_GetTextRenderingParams,
 139 };
 140
 141 void d2d_state_block_init(struct d2d_state_block *state_block, const D2D1_DRAWING_STATE_DESCRIPTION *desc,
 142         IDWriteRenderingParams *text_rendering_params)
 143 {
 144     static const D2D1_MATRIX_3X2_F identity =
 145     {
 146         1.0f, 0.0f,
 147         0.0f, 1.0f,
 148         0.0f, 0.0f,
 149     };
 150
 151     state_block->ID2D1DrawingStateBlock_iface.lpVtbl = &d2d_state_block_vtbl;
 152     state_block->refcount = 1;
 153     if (desc)
 154         state_block->drawing_state = *desc;
 155     else
 156         state_block->drawing_state.transform = identity;
 157     if ((state_block->text_rendering_params = text_rendering_params))
 158         IDWriteRenderingParams_AddRef(state_block->text_rendering_params);
 159 }
 160
 161 struct d2d_state_block *unsafe_impl_from_ID2D1DrawingStateBlock(ID2D1DrawingStateBlock *iface)
 162 {
 163     if (!iface)
 164         return NULL;
 165     assert(iface->lpVtbl == &d2d_state_block_vtbl);
 166     return CONTAINING_RECORD(iface, struct d2d_state_block, ID2D1DrawingStateBlock_iface);
 167 }