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         ID2D1Factory_Release(state_block->factory);
  72         HeapFree(GetProcessHeap(), 0, state_block);
  73     }
  74
  75     return refcount;
  76 }
  77
  78 static void STDMETHODCALLTYPE d2d_state_block_GetFactory(ID2D1DrawingStateBlock *iface, ID2D1Factory **factory)
  79 {
  80     struct d2d_state_block *state_block = impl_from_ID2D1DrawingStateBlock(iface);
  81
  82     TRACE("iface %p, factory %p.\n", iface, factory);
  83
  84     ID2D1Factory_AddRef(*factory = state_block->factory);
  85 }
  86
  87 static void STDMETHODCALLTYPE d2d_state_block_GetDescription(ID2D1DrawingStateBlock *iface,
  88         D2D1_DRAWING_STATE_DESCRIPTION *desc)
  89 {
  90     struct d2d_state_block *state_block = impl_from_ID2D1DrawingStateBlock(iface);
  91
  92     TRACE("iface %p, desc %p.\n", iface, desc);
  93
  94     *desc = state_block->drawing_state;
  95 }
  96
  97 static void STDMETHODCALLTYPE d2d_state_block_SetDescription(ID2D1DrawingStateBlock *iface,
  98         const D2D1_DRAWING_STATE_DESCRIPTION *desc)
  99 {
 100     struct d2d_state_block *state_block = impl_from_ID2D1DrawingStateBlock(iface);
 101
 102     TRACE("iface %p, desc %p.\n", iface, desc);
 103
 104     state_block->drawing_state = *desc;
 105 }
 106
 107 static void STDMETHODCALLTYPE d2d_state_block_SetTextRenderingParams(ID2D1DrawingStateBlock *iface,
 108         IDWriteRenderingParams *text_rendering_params)
 109 {
 110     struct d2d_state_block *state_block = impl_from_ID2D1DrawingStateBlock(iface);
 111
 112     TRACE("iface %p, text_rendering_params %p.\n", iface, text_rendering_params);
 113
 114     if (text_rendering_params)
 115         IDWriteRenderingParams_AddRef(text_rendering_params);
 116     if (state_block->text_rendering_params)
 117         IDWriteRenderingParams_Release(state_block->text_rendering_params);
 118     state_block->text_rendering_params = text_rendering_params;
 119 }
 120
 121 static void STDMETHODCALLTYPE d2d_state_block_GetTextRenderingParams(ID2D1DrawingStateBlock *iface,
 122         IDWriteRenderingParams **text_rendering_params)
 123 {
 124     struct d2d_state_block *state_block = impl_from_ID2D1DrawingStateBlock(iface);
 125
 126     TRACE("iface %p, text_rendering_params %p.\n", iface, text_rendering_params);
 127
 128     if ((*text_rendering_params = state_block->text_rendering_params))
 129         IDWriteRenderingParams_AddRef(*text_rendering_params);
 130 }
 131
 132 static const struct ID2D1DrawingStateBlockVtbl d2d_state_block_vtbl =
 133 {
 134     d2d_state_block_QueryInterface,
 135     d2d_state_block_AddRef,
 136     d2d_state_block_Release,
 137     d2d_state_block_GetFactory,
 138     d2d_state_block_GetDescription,
 139     d2d_state_block_SetDescription,
 140     d2d_state_block_SetTextRenderingParams,
 141     d2d_state_block_GetTextRenderingParams,
 142 };
 143
 144 void d2d_state_block_init(struct d2d_state_block *state_block, ID2D1Factory *factory,
 145         const D2D1_DRAWING_STATE_DESCRIPTION *desc, IDWriteRenderingParams *text_rendering_params)
 146 {
 147     static const D2D1_MATRIX_3X2_F identity =
 148     {
 149         1.0f, 0.0f,
 150         0.0f, 1.0f,
 151         0.0f, 0.0f,
 152     };
 153
 154     state_block->ID2D1DrawingStateBlock_iface.lpVtbl = &d2d_state_block_vtbl;
 155     state_block->refcount = 1;
 156     ID2D1Factory_AddRef(state_block->factory = factory);
 157     if (desc)
 158         state_block->drawing_state = *desc;
 159     else
 160         state_block->drawing_state.transform = identity;
 161     if ((state_block->text_rendering_params = text_rendering_params))
 162         IDWriteRenderingParams_AddRef(state_block->text_rendering_params);
 163 }
 164
 165 struct d2d_state_block *unsafe_impl_from_ID2D1DrawingStateBlock(ID2D1DrawingStateBlock *iface)
 166 {
 167     if (!iface)
 168         return NULL;
 169     assert(iface->lpVtbl == &d2d_state_block_vtbl);
 170     return CONTAINING_RECORD(iface, struct d2d_state_block, ID2D1DrawingStateBlock_iface);
 171 }