dlls/dwrite/gdiinterop.c

   1 /*
   2  *    GDI Interop
   3  *
   4  * Copyright 2012, 2014 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_private.h"
  29
  30 #include "wine/debug.h"
  31
  32 WINE_DEFAULT_DEBUG_CHANNEL(dwrite);
  33
  34 struct gdiinterop {
  35     IDWriteGdiInterop IDWriteGdiInterop_iface;
  36     IDWriteFactory2 *factory;
  37 };
  38
  39 struct rendertarget {
  40     IDWriteBitmapRenderTarget1 IDWriteBitmapRenderTarget1_iface;
  41     LONG ref;
  42
  43     DWRITE_TEXT_ANTIALIAS_MODE antialiasmode;
  44     FLOAT pixels_per_dip;
  45     DWRITE_MATRIX m;
  46     SIZE size;
  47     HDC hdc;
  48 };
  49
  50 static HRESULT create_target_dibsection(HDC hdc, UINT32 width, UINT32 height)
  51 {
  52     char bmibuf[FIELD_OFFSET(BITMAPINFO, bmiColors[256])];
  53     BITMAPINFO *bmi = (BITMAPINFO*)bmibuf;
  54     HBITMAP hbm;
  55
  56     memset(bmi, 0, sizeof(bmibuf));
  57     bmi->bmiHeader.biSize = sizeof(bmi->bmiHeader);
  58     bmi->bmiHeader.biHeight = height;
  59     bmi->bmiHeader.biWidth = width;
  60     bmi->bmiHeader.biBitCount = 32;
  61     bmi->bmiHeader.biPlanes = 1;
  62     bmi->bmiHeader.biCompression = BI_RGB;
  63
  64     hbm = CreateDIBSection(hdc, bmi, DIB_RGB_COLORS, NULL, NULL, 0);
  65     if (!hbm)
  66         hbm = CreateBitmap(1, 1, 1, 1, NULL);
  67
  68     DeleteObject(SelectObject(hdc, hbm));
  69     return S_OK;
  70 }
  71
  72 static inline struct rendertarget *impl_from_IDWriteBitmapRenderTarget1(IDWriteBitmapRenderTarget1 *iface)
  73 {
  74     return CONTAINING_RECORD(iface, struct rendertarget, IDWriteBitmapRenderTarget1_iface);
  75 }
  76
  77 static inline struct gdiinterop *impl_from_IDWriteGdiInterop(IDWriteGdiInterop *iface)
  78 {
  79     return CONTAINING_RECORD(iface, struct gdiinterop, IDWriteGdiInterop_iface);
  80 }
  81
  82 static HRESULT WINAPI rendertarget_QueryInterface(IDWriteBitmapRenderTarget1 *iface, REFIID riid, void **obj)
  83 {
  84     struct rendertarget *This = impl_from_IDWriteBitmapRenderTarget1(iface);
  85
  86     TRACE("(%p)->(%s %p)\n", This, debugstr_guid(riid), obj);
  87
  88     if (IsEqualIID(riid, &IID_IDWriteBitmapRenderTarget1) ||
  89         IsEqualIID(riid, &IID_IDWriteBitmapRenderTarget) ||
  90         IsEqualIID(riid, &IID_IUnknown))
  91     {
  92         *obj = iface;
  93         IDWriteBitmapRenderTarget1_AddRef(iface);
  94         return S_OK;
  95     }
  96
  97     *obj = NULL;
  98
  99     return E_NOINTERFACE;
 100 }
 101
 102 static ULONG WINAPI rendertarget_AddRef(IDWriteBitmapRenderTarget1 *iface)
 103 {
 104     struct rendertarget *This = impl_from_IDWriteBitmapRenderTarget1(iface);
 105     ULONG ref = InterlockedIncrement(&This->ref);
 106     TRACE("(%p)->(%d)\n", This, ref);
 107     return ref;
 108 }
 109
 110 static ULONG WINAPI rendertarget_Release(IDWriteBitmapRenderTarget1 *iface)
 111 {
 112     struct rendertarget *This = impl_from_IDWriteBitmapRenderTarget1(iface);
 113     ULONG ref = InterlockedDecrement(&This->ref);
 114
 115     TRACE("(%p)->(%d)\n", This, ref);
 116
 117     if (!ref)
 118     {
 119         DeleteDC(This->hdc);
 120         heap_free(This);
 121     }
 122
 123     return ref;
 124 }
 125
 126 static HRESULT WINAPI rendertarget_DrawGlyphRun(IDWriteBitmapRenderTarget1 *iface,
 127     FLOAT baselineOriginX, FLOAT baselineOriginY, DWRITE_MEASURING_MODE measuring_mode,
 128     DWRITE_GLYPH_RUN const* glyph_run, IDWriteRenderingParams* params, COLORREF textColor,
 129     RECT *blackbox_rect)
 130 {
 131     struct rendertarget *This = impl_from_IDWriteBitmapRenderTarget1(iface);
 132     FIXME("(%p)->(%f %f %d %p %p 0x%08x %p): stub\n", This, baselineOriginX, baselineOriginY,
 133         measuring_mode, glyph_run, params, textColor, blackbox_rect);
 134     return E_NOTIMPL;
 135 }
 136
 137 static HDC WINAPI rendertarget_GetMemoryDC(IDWriteBitmapRenderTarget1 *iface)
 138 {
 139     struct rendertarget *This = impl_from_IDWriteBitmapRenderTarget1(iface);
 140     TRACE("(%p)\n", This);
 141     return This->hdc;
 142 }
 143
 144 static FLOAT WINAPI rendertarget_GetPixelsPerDip(IDWriteBitmapRenderTarget1 *iface)
 145 {
 146     struct rendertarget *This = impl_from_IDWriteBitmapRenderTarget1(iface);
 147     TRACE("(%p)\n", This);
 148     return This->pixels_per_dip;
 149 }
 150
 151 static HRESULT WINAPI rendertarget_SetPixelsPerDip(IDWriteBitmapRenderTarget1 *iface, FLOAT pixels_per_dip)
 152 {
 153     struct rendertarget *This = impl_from_IDWriteBitmapRenderTarget1(iface);
 154
 155     TRACE("(%p)->(%.2f)\n", This, pixels_per_dip);
 156
 157     if (pixels_per_dip <= 0.0)
 158         return E_INVALIDARG;
 159
 160     This->pixels_per_dip = pixels_per_dip;
 161     return S_OK;
 162 }
 163
 164 static HRESULT WINAPI rendertarget_GetCurrentTransform(IDWriteBitmapRenderTarget1 *iface, DWRITE_MATRIX *transform)
 165 {
 166     struct rendertarget *This = impl_from_IDWriteBitmapRenderTarget1(iface);
 167
 168     TRACE("(%p)->(%p)\n", This, transform);
 169
 170     *transform = This->m;
 171     return S_OK;
 172 }
 173
 174 static HRESULT WINAPI rendertarget_SetCurrentTransform(IDWriteBitmapRenderTarget1 *iface, DWRITE_MATRIX const *transform)
 175 {
 176     struct rendertarget *This = impl_from_IDWriteBitmapRenderTarget1(iface);
 177
 178     TRACE("(%p)->(%p)\n", This, transform);
 179
 180     This->m = transform ? *transform : identity;
 181     return S_OK;
 182 }
 183
 184 static HRESULT WINAPI rendertarget_GetSize(IDWriteBitmapRenderTarget1 *iface, SIZE *size)
 185 {
 186     struct rendertarget *This = impl_from_IDWriteBitmapRenderTarget1(iface);
 187
 188     TRACE("(%p)->(%p)\n", This, size);
 189     *size = This->size;
 190     return S_OK;
 191 }
 192
 193 static HRESULT WINAPI rendertarget_Resize(IDWriteBitmapRenderTarget1 *iface, UINT32 width, UINT32 height)
 194 {
 195     struct rendertarget *This = impl_from_IDWriteBitmapRenderTarget1(iface);
 196
 197     TRACE("(%p)->(%u %u)\n", This, width, height);
 198
 199     if (This->size.cx == width && This->size.cy == height)
 200         return S_OK;
 201
 202     return create_target_dibsection(This->hdc, width, height);
 203 }
 204
 205 static DWRITE_TEXT_ANTIALIAS_MODE WINAPI rendertarget_GetTextAntialiasMode(IDWriteBitmapRenderTarget1 *iface)
 206 {
 207     struct rendertarget *This = impl_from_IDWriteBitmapRenderTarget1(iface);
 208     TRACE("(%p)\n", This);
 209     return This->antialiasmode;
 210 }
 211
 212 static HRESULT WINAPI rendertarget_SetTextAntialiasMode(IDWriteBitmapRenderTarget1 *iface, DWRITE_TEXT_ANTIALIAS_MODE mode)
 213 {
 214     struct rendertarget *This = impl_from_IDWriteBitmapRenderTarget1(iface);
 215
 216     TRACE("(%p)->(%d)\n", This, mode);
 217
 218     if ((DWORD)mode > DWRITE_TEXT_ANTIALIAS_MODE_GRAYSCALE)
 219         return E_INVALIDARG;
 220
 221     This->antialiasmode = mode;
 222     return S_OK;
 223 }
 224
 225 static const IDWriteBitmapRenderTarget1Vtbl rendertargetvtbl = {
 226     rendertarget_QueryInterface,
 227     rendertarget_AddRef,
 228     rendertarget_Release,
 229     rendertarget_DrawGlyphRun,
 230     rendertarget_GetMemoryDC,
 231     rendertarget_GetPixelsPerDip,
 232     rendertarget_SetPixelsPerDip,
 233     rendertarget_GetCurrentTransform,
 234     rendertarget_SetCurrentTransform,
 235     rendertarget_GetSize,
 236     rendertarget_Resize,
 237     rendertarget_GetTextAntialiasMode,
 238     rendertarget_SetTextAntialiasMode
 239 };
 240
 241 static HRESULT create_rendertarget(HDC hdc, UINT32 width, UINT32 height, IDWriteBitmapRenderTarget **ret)
 242 {
 243     struct rendertarget *target;
 244     HRESULT hr;
 245
 246     *ret = NULL;
 247
 248     target = heap_alloc(sizeof(struct rendertarget));
 249     if (!target) return E_OUTOFMEMORY;
 250
 251     target->IDWriteBitmapRenderTarget1_iface.lpVtbl = &rendertargetvtbl;
 252     target->ref = 1;
 253
 254     target->size.cx = width;
 255     target->size.cy = height;
 256
 257     target->hdc = CreateCompatibleDC(hdc);
 258     hr = create_target_dibsection(target->hdc, width, height);
 259     if (FAILED(hr)) {
 260         IDWriteBitmapRenderTarget1_Release(&target->IDWriteBitmapRenderTarget1_iface);
 261         return hr;
 262     }
 263
 264     target->m = identity;
 265     target->pixels_per_dip = 1.0;
 266     target->antialiasmode = DWRITE_TEXT_ANTIALIAS_MODE_CLEARTYPE;
 267
 268     *ret = (IDWriteBitmapRenderTarget*)&target->IDWriteBitmapRenderTarget1_iface;
 269
 270     return S_OK;
 271 }
 272
 273 static HRESULT WINAPI gdiinterop_QueryInterface(IDWriteGdiInterop *iface, REFIID riid, void **obj)
 274 {
 275     struct gdiinterop *This = impl_from_IDWriteGdiInterop(iface);
 276
 277     TRACE("(%p)->(%s %p)\n", This, debugstr_guid(riid), obj);
 278
 279     if (IsEqualIID(riid, &IID_IDWriteGdiInterop) ||
 280         IsEqualIID(riid, &IID_IUnknown))
 281     {
 282         *obj = iface;
 283         IDWriteGdiInterop_AddRef(iface);
 284         return S_OK;
 285     }
 286
 287     *obj = NULL;
 288     return E_NOINTERFACE;
 289 }
 290
 291 static ULONG WINAPI gdiinterop_AddRef(IDWriteGdiInterop *iface)
 292 {
 293     struct gdiinterop *This = impl_from_IDWriteGdiInterop(iface);
 294     TRACE("(%p)\n", This);
 295     return IDWriteFactory2_AddRef(This->factory);
 296 }
 297
 298 static ULONG WINAPI gdiinterop_Release(IDWriteGdiInterop *iface)
 299 {
 300     struct gdiinterop *This = impl_from_IDWriteGdiInterop(iface);
 301     TRACE("(%p)\n", This);
 302     return IDWriteFactory2_Release(This->factory);
 303 }
 304
 305 static HRESULT WINAPI gdiinterop_CreateFontFromLOGFONT(IDWriteGdiInterop *iface,
 306     LOGFONTW const *logfont, IDWriteFont **font)
 307 {
 308     struct gdiinterop *This = impl_from_IDWriteGdiInterop(iface);
 309     IDWriteFontCollection *collection;
 310     IDWriteFontFamily *family;
 311     DWRITE_FONT_STYLE style;
 312     BOOL exists = FALSE;
 313     UINT32 index;
 314     HRESULT hr;
 315
 316     TRACE("(%p)->(%p %p)\n", This, logfont, font);
 317
 318     *font = NULL;
 319
 320     if (!logfont) return E_INVALIDARG;
 321
 322     hr = IDWriteFactory2_GetSystemFontCollection(This->factory, &collection, FALSE);
 323     if (FAILED(hr)) {
 324         ERR("failed to get system font collection: 0x%08x.\n", hr);
 325         return hr;
 326     }
 327
 328     hr = IDWriteFontCollection_FindFamilyName(collection, logfont->lfFaceName, &index, &exists);
 329     if (FAILED(hr)) {
 330         IDWriteFontCollection_Release(collection);
 331         goto done;
 332     }
 333
 334     if (!exists) {
 335         hr = DWRITE_E_NOFONT;
 336         goto done;
 337     }
 338
 339     hr = IDWriteFontCollection_GetFontFamily(collection, index, &family);
 340     if (FAILED(hr))
 341         goto done;
 342
 343     style = logfont->lfItalic ? DWRITE_FONT_STYLE_ITALIC : DWRITE_FONT_STYLE_NORMAL;
 344     hr = IDWriteFontFamily_GetFirstMatchingFont(family, logfont->lfWeight, DWRITE_FONT_STRETCH_NORMAL, style, font);
 345     IDWriteFontFamily_Release(family);
 346
 347 done:
 348     IDWriteFontCollection_Release(collection);
 349     return hr;
 350 }
 351
 352 static HRESULT WINAPI gdiinterop_ConvertFontToLOGFONT(IDWriteGdiInterop *iface,
 353     IDWriteFont *font, LOGFONTW *logfont, BOOL *is_systemfont)
 354 {
 355     struct gdiinterop *This = impl_from_IDWriteGdiInterop(iface);
 356     static const WCHAR enusW[] = {'e','n','-','u','s',0};
 357     DWRITE_FONT_SIMULATIONS simulations;
 358     IDWriteFontCollection *collection;
 359     IDWriteLocalizedStrings *name;
 360     IDWriteFontFamily *family;
 361     DWRITE_FONT_STYLE style;
 362     UINT32 index;
 363     BOOL exists;
 364     HRESULT hr;
 365
 366     TRACE("(%p)->(%p %p %p)\n", This, font, logfont, is_systemfont);
 367
 368     *is_systemfont = FALSE;
 369
 370     if (!font)
 371         return E_INVALIDARG;
 372
 373     hr = IDWriteFont_GetFontFamily(font, &family);
 374     if (FAILED(hr))
 375         return hr;
 376
 377     hr = IDWriteFontFamily_GetFontCollection(family, &collection);
 378     IDWriteFontFamily_Release(family);
 379     if (FAILED(hr))
 380         return hr;
 381
 382     *is_systemfont = is_system_collection(collection);
 383     IDWriteFontCollection_Release(collection);
 384
 385     simulations = IDWriteFont_GetSimulations(font);
 386     style = IDWriteFont_GetStyle(font);
 387
 388     logfont->lfCharSet = DEFAULT_CHARSET;
 389     logfont->lfWeight = IDWriteFont_GetWeight(font);
 390     logfont->lfItalic = style == DWRITE_FONT_STYLE_ITALIC || (simulations & DWRITE_FONT_SIMULATIONS_OBLIQUE);
 391     logfont->lfOutPrecision = OUT_OUTLINE_PRECIS;
 392     logfont->lfFaceName[0] = 0;
 393
 394     exists = FALSE;
 395     hr = IDWriteFont_GetInformationalStrings(font, DWRITE_INFORMATIONAL_STRING_WIN32_FAMILY_NAMES, &name, &exists);
 396     if (FAILED(hr) || !exists)
 397         return hr;
 398
 399     IDWriteLocalizedStrings_FindLocaleName(name, enusW, &index, &exists);
 400     IDWriteLocalizedStrings_GetString(name, index, logfont->lfFaceName, sizeof(logfont->lfFaceName)/sizeof(WCHAR));
 401     IDWriteLocalizedStrings_Release(name);
 402
 403     return S_OK;
 404 }
 405
 406 static HRESULT WINAPI gdiinterop_ConvertFontFaceToLOGFONT(IDWriteGdiInterop *iface,
 407     IDWriteFontFace *fontface, LOGFONTW *logfont)
 408 {
 409     struct gdiinterop *This = impl_from_IDWriteGdiInterop(iface);
 410     TRACE("(%p)->(%p %p)\n", This, fontface, logfont);
 411     return convert_fontface_to_logfont(fontface, logfont);
 412 }
 413
 414 static HRESULT WINAPI gdiinterop_CreateFontFaceFromHdc(IDWriteGdiInterop *iface,
 415     HDC hdc, IDWriteFontFace **fontface)
 416 {
 417     struct gdiinterop *This = impl_from_IDWriteGdiInterop(iface);
 418     IDWriteFont *font;
 419     LOGFONTW logfont;
 420     HFONT hfont;
 421     HRESULT hr;
 422
 423     TRACE("(%p)->(%p %p)\n", This, hdc, fontface);
 424
 425     *fontface = NULL;
 426
 427     hfont = GetCurrentObject(hdc, OBJ_FONT);
 428     if (!hfont)
 429         return E_INVALIDARG;
 430     GetObjectW(hfont, sizeof(logfont), &logfont);
 431
 432     hr = IDWriteGdiInterop_CreateFontFromLOGFONT(iface, &logfont, &font);
 433     if (FAILED(hr))
 434         return hr;
 435
 436     hr = IDWriteFont_CreateFontFace(font, fontface);
 437     IDWriteFont_Release(font);
 438
 439     return hr;
 440 }
 441
 442 static HRESULT WINAPI gdiinterop_CreateBitmapRenderTarget(IDWriteGdiInterop *iface,
 443     HDC hdc, UINT32 width, UINT32 height, IDWriteBitmapRenderTarget **target)
 444 {
 445     struct gdiinterop *This = impl_from_IDWriteGdiInterop(iface);
 446     TRACE("(%p)->(%p %u %u %p)\n", This, hdc, width, height, target);
 447     return create_rendertarget(hdc, width, height, target);
 448 }
 449
 450 static const struct IDWriteGdiInteropVtbl gdiinteropvtbl = {
 451     gdiinterop_QueryInterface,
 452     gdiinterop_AddRef,
 453     gdiinterop_Release,
 454     gdiinterop_CreateFontFromLOGFONT,
 455     gdiinterop_ConvertFontToLOGFONT,
 456     gdiinterop_ConvertFontFaceToLOGFONT,
 457     gdiinterop_CreateFontFaceFromHdc,
 458     gdiinterop_CreateBitmapRenderTarget
 459 };
 460
 461 HRESULT create_gdiinterop(IDWriteFactory2 *factory, IDWriteGdiInterop **ret)
 462 {
 463     struct gdiinterop *This;
 464
 465     *ret = NULL;
 466
 467     This = heap_alloc(sizeof(struct gdiinterop));
 468     if (!This) return E_OUTOFMEMORY;
 469
 470     This->IDWriteGdiInterop_iface.lpVtbl = &gdiinteropvtbl;
 471     This->factory = factory;
 472
 473     *ret= &This->IDWriteGdiInterop_iface;
 474     return S_OK;
 475 }
 476
 477 void release_gdiinterop(IDWriteGdiInterop *iface)
 478 {
 479     struct gdiinterop *interop = impl_from_IDWriteGdiInterop(iface);
 480     heap_free(interop);
 481 }