dlls/dwrite/gdiinterop.c

   1 /*
   2  *    GDI Interop
   3  *
   4  * Copyright 2012 Nikolay Sivov for CodeWeavers
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  19  */
  20
  21 #define COBJMACROS
  22
  23 #include <stdarg.h>
  24
  25 #include "windef.h"
  26 #include "winbase.h"
  27 #include "wingdi.h"
  28 #include "dwrite.h"
  29 #include "dwrite_private.h"
  30
  31 #include "wine/debug.h"
  32
  33 WINE_DEFAULT_DEBUG_CHANNEL(dwrite);
  34
  35 struct rendertarget {
  36     IDWriteBitmapRenderTarget IDWriteBitmapRenderTarget_iface;
  37     LONG ref;
  38
  39     SIZE size;
  40     HDC hdc;
  41 };
  42
  43 static inline struct rendertarget *impl_from_IDWriteBitmapRenderTarget(IDWriteBitmapRenderTarget *iface)
  44 {
  45     return CONTAINING_RECORD(iface, struct rendertarget, IDWriteBitmapRenderTarget_iface);
  46 }
  47
  48 static HRESULT WINAPI rendertarget_QueryInterface(IDWriteBitmapRenderTarget *iface, REFIID riid, void **obj)
  49 {
  50     struct rendertarget *This = impl_from_IDWriteBitmapRenderTarget(iface);
  51
  52     TRACE("(%p)->(%s %p)\n", This, debugstr_guid(riid), obj);
  53
  54     if (IsEqualIID(riid, &IID_IUnknown) || IsEqualIID(riid, &IID_IDWriteBitmapRenderTarget))
  55     {
  56         *obj = iface;
  57         IDWriteBitmapRenderTarget_AddRef(iface);
  58         return S_OK;
  59     }
  60
  61     *obj = NULL;
  62
  63     return E_NOINTERFACE;
  64 }
  65
  66 static ULONG WINAPI rendertarget_AddRef(IDWriteBitmapRenderTarget *iface)
  67 {
  68     struct rendertarget *This = impl_from_IDWriteBitmapRenderTarget(iface);
  69     ULONG ref = InterlockedIncrement(&This->ref);
  70     TRACE("(%p)->(%d)\n", This, ref);
  71     return ref;
  72 }
  73
  74 static ULONG WINAPI rendertarget_Release(IDWriteBitmapRenderTarget *iface)
  75 {
  76     struct rendertarget *This = impl_from_IDWriteBitmapRenderTarget(iface);
  77     ULONG ref = InterlockedDecrement(&This->ref);
  78
  79     TRACE("(%p)->(%d)\n", This, ref);
  80
  81     if (!ref)
  82     {
  83         DeleteDC(This->hdc);
  84         heap_free(This);
  85     }
  86
  87     return ref;
  88 }
  89
  90 static HRESULT WINAPI rendertarget_DrawGlyphRun(IDWriteBitmapRenderTarget *iface,
  91     FLOAT baselineOriginX, FLOAT baselineOriginY, DWRITE_MEASURING_MODE measuring_mode,
  92     DWRITE_GLYPH_RUN const* glyph_run, IDWriteRenderingParams* params, COLORREF textColor,
  93     RECT *blackbox_rect)
  94 {
  95     struct rendertarget *This = impl_from_IDWriteBitmapRenderTarget(iface);
  96     FIXME("(%p)->(%f %f %d %p %p 0x%08x %p): stub\n", This, baselineOriginX, baselineOriginY,
  97         measuring_mode, glyph_run, params, textColor, blackbox_rect);
  98     return E_NOTIMPL;
  99 }
 100
 101 static HDC WINAPI rendertarget_GetMemoryDC(IDWriteBitmapRenderTarget *iface)
 102 {
 103     struct rendertarget *This = impl_from_IDWriteBitmapRenderTarget(iface);
 104     TRACE("(%p)\n", This);
 105     return This->hdc;
 106 }
 107
 108 static FLOAT WINAPI rendertarget_GetPixelsPerDip(IDWriteBitmapRenderTarget *iface)
 109 {
 110     struct rendertarget *This = impl_from_IDWriteBitmapRenderTarget(iface);
 111     FIXME("(%p): stub\n", This);
 112     return 1.0;
 113 }
 114
 115 static HRESULT WINAPI rendertarget_SetPixelsPerDip(IDWriteBitmapRenderTarget *iface, FLOAT pixels_per_dip)
 116 {
 117     struct rendertarget *This = impl_from_IDWriteBitmapRenderTarget(iface);
 118     FIXME("(%p)->(%f): stub\n", This, pixels_per_dip);
 119     return E_NOTIMPL;
 120 }
 121
 122 static HRESULT WINAPI rendertarget_GetCurrentTransform(IDWriteBitmapRenderTarget *iface, DWRITE_MATRIX *transform)
 123 {
 124     struct rendertarget *This = impl_from_IDWriteBitmapRenderTarget(iface);
 125     FIXME("(%p)->(%p): stub\n", This, transform);
 126     return E_NOTIMPL;
 127 }
 128
 129 static HRESULT WINAPI rendertarget_SetCurrentTransform(IDWriteBitmapRenderTarget *iface, DWRITE_MATRIX const *transform)
 130 {
 131     struct rendertarget *This = impl_from_IDWriteBitmapRenderTarget(iface);
 132     FIXME("(%p)->(%p): stub\n", This, transform);
 133     return E_NOTIMPL;
 134 }
 135
 136 static HRESULT WINAPI rendertarget_GetSize(IDWriteBitmapRenderTarget *iface, SIZE *size)
 137 {
 138     struct rendertarget *This = impl_from_IDWriteBitmapRenderTarget(iface);
 139
 140     TRACE("(%p)->(%p)\n", This, size);
 141     *size = This->size;
 142     return S_OK;
 143 }
 144
 145 static HRESULT WINAPI rendertarget_Resize(IDWriteBitmapRenderTarget *iface, UINT32 width, UINT32 height)
 146 {
 147     struct rendertarget *This = impl_from_IDWriteBitmapRenderTarget(iface);
 148     FIXME("(%p)->(%u %u): stub\n", This, width, height);
 149     return E_NOTIMPL;
 150 }
 151
 152 static const IDWriteBitmapRenderTargetVtbl rendertargetvtbl = {
 153     rendertarget_QueryInterface,
 154     rendertarget_AddRef,
 155     rendertarget_Release,
 156     rendertarget_DrawGlyphRun,
 157     rendertarget_GetMemoryDC,
 158     rendertarget_GetPixelsPerDip,
 159     rendertarget_SetPixelsPerDip,
 160     rendertarget_GetCurrentTransform,
 161     rendertarget_SetCurrentTransform,
 162     rendertarget_GetSize,
 163     rendertarget_Resize
 164 };
 165
 166 static HRESULT create_rendertarget(HDC hdc, UINT32 width, UINT32 height, IDWriteBitmapRenderTarget **target)
 167 {
 168     char bmibuf[FIELD_OFFSET(BITMAPINFO, bmiColors[256])];
 169     BITMAPINFO *bmi = (BITMAPINFO*)bmibuf;
 170     struct rendertarget *This;
 171     HBITMAP dib;
 172
 173     *target = NULL;
 174
 175     This = heap_alloc(sizeof(struct rendertarget));
 176     if (!This) return E_OUTOFMEMORY;
 177
 178     This->IDWriteBitmapRenderTarget_iface.lpVtbl = &rendertargetvtbl;
 179     This->ref = 1;
 180
 181     This->size.cx = width;
 182     This->size.cy = height;
 183
 184     This->hdc = CreateCompatibleDC(hdc);
 185
 186     memset(bmi, 0, sizeof(bmibuf));
 187     bmi->bmiHeader.biSize = sizeof(bmi->bmiHeader);
 188     bmi->bmiHeader.biHeight = height;
 189     bmi->bmiHeader.biWidth = width;
 190     bmi->bmiHeader.biBitCount = 32;
 191     bmi->bmiHeader.biPlanes = 1;
 192     bmi->bmiHeader.biCompression = BI_RGB;
 193
 194     dib = CreateDIBSection(This->hdc, bmi, DIB_RGB_COLORS, NULL, NULL, 0);
 195     SelectObject(This->hdc, dib);
 196
 197     *target = &This->IDWriteBitmapRenderTarget_iface;
 198
 199     return S_OK;
 200 }
 201
 202 static HRESULT WINAPI gdiinterop_QueryInterface(IDWriteGdiInterop *iface, REFIID riid, void **obj)
 203 {
 204     TRACE("(%s %p)\n", debugstr_guid(riid), obj);
 205
 206     if (IsEqualIID(riid, &IID_IUnknown) || IsEqualIID(riid, &IID_IDWriteGdiInterop))
 207     {
 208         *obj = iface;
 209         return S_OK;
 210     }
 211
 212     *obj = NULL;
 213
 214     return E_NOINTERFACE;
 215 }
 216
 217 static ULONG WINAPI gdiinterop_AddRef(IDWriteGdiInterop *iface)
 218 {
 219     return 2;
 220 }
 221
 222 static ULONG WINAPI gdiinterop_Release(IDWriteGdiInterop *iface)
 223 {
 224     return 1;
 225 }
 226
 227 static HRESULT WINAPI gdiinterop_CreateFontFromLOGFONT(IDWriteGdiInterop *iface,
 228     LOGFONTW const *logfont, IDWriteFont **font)
 229 {
 230     TRACE("(%p %p)\n", logfont, font);
 231
 232     if (!logfont) return E_INVALIDARG;
 233
 234     return create_font_from_logfont(logfont, font);
 235 }
 236
 237 static HRESULT WINAPI gdiinterop_ConvertFontToLOGFONT(IDWriteGdiInterop *iface,
 238     IDWriteFont *font, LOGFONTW *logfont, BOOL *is_systemfont)
 239 {
 240     FIXME("(%p %p %p): stub\n", font, logfont, is_systemfont);
 241     return E_NOTIMPL;
 242 }
 243
 244 static HRESULT WINAPI gdiinterop_ConvertFontFaceToLOGFONT(IDWriteGdiInterop *iface,
 245     IDWriteFontFace *font, LOGFONTW *logfont)
 246 {
 247     FIXME("(%p %p): stub\n", font, logfont);
 248     return E_NOTIMPL;
 249 }
 250
 251 static HRESULT WINAPI gdiinterop_CreateFontFaceFromHdc(IDWriteGdiInterop *iface,
 252     HDC hdc, IDWriteFontFace **fontface)
 253 {
 254     FIXME("(%p %p): stub\n", hdc, fontface);
 255     return E_NOTIMPL;
 256 }
 257
 258 static HRESULT WINAPI gdiinterop_CreateBitmapRenderTarget(IDWriteGdiInterop *iface,
 259     HDC hdc, UINT32 width, UINT32 height, IDWriteBitmapRenderTarget **target)
 260 {
 261     TRACE("(%p %u %u %p)\n", hdc, width, height, target);
 262     return create_rendertarget(hdc, width, height, target);
 263 }
 264
 265 static const struct IDWriteGdiInteropVtbl gdiinteropvtbl = {
 266     gdiinterop_QueryInterface,
 267     gdiinterop_AddRef,
 268     gdiinterop_Release,
 269     gdiinterop_CreateFontFromLOGFONT,
 270     gdiinterop_ConvertFontToLOGFONT,
 271     gdiinterop_ConvertFontFaceToLOGFONT,
 272     gdiinterop_CreateFontFaceFromHdc,
 273     gdiinterop_CreateBitmapRenderTarget
 274 };
 275
 276 static IDWriteGdiInterop gdiinterop = { &gdiinteropvtbl };
 277
 278 HRESULT get_gdiinterop(IDWriteGdiInterop **ret)
 279 {
 280     *ret = &gdiinterop;
 281     return S_OK;
 282 }