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 gdiinterop {
  36     IDWriteGdiInterop IDWriteGdiInterop_iface;
  37     LONG ref;
  38 };
  39
  40 struct rendertarget {
  41     IDWriteBitmapRenderTarget IDWriteBitmapRenderTarget_iface;
  42     LONG ref;
  43
  44     DWRITE_MATRIX m;
  45     SIZE size;
  46     HDC hdc;
  47 };
  48
  49 static HRESULT create_target_dibsection(HDC hdc, UINT32 width, UINT32 height)
  50 {
  51     char bmibuf[FIELD_OFFSET(BITMAPINFO, bmiColors[256])];
  52     BITMAPINFO *bmi = (BITMAPINFO*)bmibuf;
  53     HBITMAP hbm;
  54
  55     memset(bmi, 0, sizeof(bmibuf));
  56     bmi->bmiHeader.biSize = sizeof(bmi->bmiHeader);
  57     bmi->bmiHeader.biHeight = height;
  58     bmi->bmiHeader.biWidth = width;
  59     bmi->bmiHeader.biBitCount = 32;
  60     bmi->bmiHeader.biPlanes = 1;
  61     bmi->bmiHeader.biCompression = BI_RGB;
  62
  63     hbm = CreateDIBSection(hdc, bmi, DIB_RGB_COLORS, NULL, NULL, 0);
  64     if (!hbm)
  65         hbm = CreateBitmap(1, 1, 1, 1, NULL);
  66
  67     DeleteObject(SelectObject(hdc, hbm));
  68     return S_OK;
  69 }
  70
  71 static inline struct rendertarget *impl_from_IDWriteBitmapRenderTarget(IDWriteBitmapRenderTarget *iface)
  72 {
  73     return CONTAINING_RECORD(iface, struct rendertarget, IDWriteBitmapRenderTarget_iface);
  74 }
  75
  76 static inline struct gdiinterop *impl_from_IDWriteGdiInterop(IDWriteGdiInterop *iface)
  77 {
  78     return CONTAINING_RECORD(iface, struct gdiinterop, IDWriteGdiInterop_iface);
  79 }
  80
  81 static HRESULT WINAPI rendertarget_QueryInterface(IDWriteBitmapRenderTarget *iface, REFIID riid, void **obj)
  82 {
  83     struct rendertarget *This = impl_from_IDWriteBitmapRenderTarget(iface);
  84
  85     TRACE("(%p)->(%s %p)\n", This, debugstr_guid(riid), obj);
  86
  87     if (IsEqualIID(riid, &IID_IUnknown) || IsEqualIID(riid, &IID_IDWriteBitmapRenderTarget))
  88     {
  89         *obj = iface;
  90         IDWriteBitmapRenderTarget_AddRef(iface);
  91         return S_OK;
  92     }
  93
  94     *obj = NULL;
  95
  96     return E_NOINTERFACE;
  97 }
  98
  99 static ULONG WINAPI rendertarget_AddRef(IDWriteBitmapRenderTarget *iface)
 100 {
 101     struct rendertarget *This = impl_from_IDWriteBitmapRenderTarget(iface);
 102     ULONG ref = InterlockedIncrement(&This->ref);
 103     TRACE("(%p)->(%d)\n", This, ref);
 104     return ref;
 105 }
 106
 107 static ULONG WINAPI rendertarget_Release(IDWriteBitmapRenderTarget *iface)
 108 {
 109     struct rendertarget *This = impl_from_IDWriteBitmapRenderTarget(iface);
 110     ULONG ref = InterlockedDecrement(&This->ref);
 111
 112     TRACE("(%p)->(%d)\n", This, ref);
 113
 114     if (!ref)
 115     {
 116         DeleteDC(This->hdc);
 117         heap_free(This);
 118     }
 119
 120     return ref;
 121 }
 122
 123 static HRESULT WINAPI rendertarget_DrawGlyphRun(IDWriteBitmapRenderTarget *iface,
 124     FLOAT baselineOriginX, FLOAT baselineOriginY, DWRITE_MEASURING_MODE measuring_mode,
 125     DWRITE_GLYPH_RUN const* glyph_run, IDWriteRenderingParams* params, COLORREF textColor,
 126     RECT *blackbox_rect)
 127 {
 128     struct rendertarget *This = impl_from_IDWriteBitmapRenderTarget(iface);
 129     FIXME("(%p)->(%f %f %d %p %p 0x%08x %p): stub\n", This, baselineOriginX, baselineOriginY,
 130         measuring_mode, glyph_run, params, textColor, blackbox_rect);
 131     return E_NOTIMPL;
 132 }
 133
 134 static HDC WINAPI rendertarget_GetMemoryDC(IDWriteBitmapRenderTarget *iface)
 135 {
 136     struct rendertarget *This = impl_from_IDWriteBitmapRenderTarget(iface);
 137     TRACE("(%p)\n", This);
 138     return This->hdc;
 139 }
 140
 141 static FLOAT WINAPI rendertarget_GetPixelsPerDip(IDWriteBitmapRenderTarget *iface)
 142 {
 143     struct rendertarget *This = impl_from_IDWriteBitmapRenderTarget(iface);
 144     FIXME("(%p): stub\n", This);
 145     return 1.0;
 146 }
 147
 148 static HRESULT WINAPI rendertarget_SetPixelsPerDip(IDWriteBitmapRenderTarget *iface, FLOAT pixels_per_dip)
 149 {
 150     struct rendertarget *This = impl_from_IDWriteBitmapRenderTarget(iface);
 151     FIXME("(%p)->(%f): stub\n", This, pixels_per_dip);
 152     return E_NOTIMPL;
 153 }
 154
 155 static HRESULT WINAPI rendertarget_GetCurrentTransform(IDWriteBitmapRenderTarget *iface, DWRITE_MATRIX *transform)
 156 {
 157     struct rendertarget *This = impl_from_IDWriteBitmapRenderTarget(iface);
 158
 159     TRACE("(%p)->(%p)\n", This, transform);
 160
 161     *transform = This->m;
 162     return S_OK;
 163 }
 164
 165 static HRESULT WINAPI rendertarget_SetCurrentTransform(IDWriteBitmapRenderTarget *iface, DWRITE_MATRIX const *transform)
 166 {
 167     struct rendertarget *This = impl_from_IDWriteBitmapRenderTarget(iface);
 168     FIXME("(%p)->(%p): stub\n", This, transform);
 169     return E_NOTIMPL;
 170 }
 171
 172 static HRESULT WINAPI rendertarget_GetSize(IDWriteBitmapRenderTarget *iface, SIZE *size)
 173 {
 174     struct rendertarget *This = impl_from_IDWriteBitmapRenderTarget(iface);
 175
 176     TRACE("(%p)->(%p)\n", This, size);
 177     *size = This->size;
 178     return S_OK;
 179 }
 180
 181 static HRESULT WINAPI rendertarget_Resize(IDWriteBitmapRenderTarget *iface, UINT32 width, UINT32 height)
 182 {
 183     struct rendertarget *This = impl_from_IDWriteBitmapRenderTarget(iface);
 184
 185     TRACE("(%p)->(%u %u)\n", This, width, height);
 186
 187     if (This->size.cx == width && This->size.cy == height)
 188         return S_OK;
 189
 190     return create_target_dibsection(This->hdc, width, height);
 191 }
 192
 193 static const IDWriteBitmapRenderTargetVtbl rendertargetvtbl = {
 194     rendertarget_QueryInterface,
 195     rendertarget_AddRef,
 196     rendertarget_Release,
 197     rendertarget_DrawGlyphRun,
 198     rendertarget_GetMemoryDC,
 199     rendertarget_GetPixelsPerDip,
 200     rendertarget_SetPixelsPerDip,
 201     rendertarget_GetCurrentTransform,
 202     rendertarget_SetCurrentTransform,
 203     rendertarget_GetSize,
 204     rendertarget_Resize
 205 };
 206
 207 static HRESULT create_rendertarget(HDC hdc, UINT32 width, UINT32 height, IDWriteBitmapRenderTarget **ret)
 208 {
 209     struct rendertarget *target;
 210     HRESULT hr;
 211
 212     *ret = NULL;
 213
 214     target = heap_alloc(sizeof(struct rendertarget));
 215     if (!target) return E_OUTOFMEMORY;
 216
 217     target->IDWriteBitmapRenderTarget_iface.lpVtbl = &rendertargetvtbl;
 218     target->ref = 1;
 219
 220     target->size.cx = width;
 221     target->size.cy = height;
 222
 223     target->hdc = CreateCompatibleDC(hdc);
 224     hr = create_target_dibsection(target->hdc, width, height);
 225     if (FAILED(hr)) {
 226         IDWriteBitmapRenderTarget_Release(&target->IDWriteBitmapRenderTarget_iface);
 227         return hr;
 228     }
 229
 230     target->m.m11 = target->m.m22 = 1.0;
 231     target->m.m12 = target->m.m21 = 0.0;
 232     target->m.dx  = target->m.dy  = 0.0;
 233
 234     *ret = &target->IDWriteBitmapRenderTarget_iface;
 235
 236     return S_OK;
 237 }
 238
 239 static HRESULT WINAPI gdiinterop_QueryInterface(IDWriteGdiInterop *iface, REFIID riid, void **obj)
 240 {
 241     struct gdiinterop *This = impl_from_IDWriteGdiInterop(iface);
 242
 243     TRACE("(%p)->(%s %p)\n", This, debugstr_guid(riid), obj);
 244
 245     if (IsEqualIID(riid, &IID_IUnknown) || IsEqualIID(riid, &IID_IDWriteGdiInterop))
 246     {
 247         *obj = iface;
 248         IDWriteGdiInterop_AddRef(iface);
 249         return S_OK;
 250     }
 251
 252     *obj = NULL;
 253     return E_NOINTERFACE;
 254 }
 255
 256 static ULONG WINAPI gdiinterop_AddRef(IDWriteGdiInterop *iface)
 257 {
 258     struct gdiinterop *This = impl_from_IDWriteGdiInterop(iface);
 259     ULONG ref = InterlockedIncrement(&This->ref);
 260     TRACE("(%p)->(%d)\n", This, ref);
 261     return ref;
 262 }
 263
 264 static ULONG WINAPI gdiinterop_Release(IDWriteGdiInterop *iface)
 265 {
 266     struct gdiinterop *This = impl_from_IDWriteGdiInterop(iface);
 267     ULONG ref = InterlockedDecrement(&This->ref);
 268
 269     TRACE("(%p)->(%d)\n", This, ref);
 270
 271     if (!ref)
 272     {
 273         heap_free(This);
 274     }
 275     return ref;
 276 }
 277
 278 static HRESULT WINAPI gdiinterop_CreateFontFromLOGFONT(IDWriteGdiInterop *iface,
 279     LOGFONTW const *logfont, IDWriteFont **font)
 280 {
 281     struct gdiinterop *This = impl_from_IDWriteGdiInterop(iface);
 282     TRACE("(%p)->(%p %p)\n", This, logfont, font);
 283
 284     if (!logfont) return E_INVALIDARG;
 285
 286     return create_font_from_logfont(logfont, font);
 287 }
 288
 289 static HRESULT WINAPI gdiinterop_ConvertFontToLOGFONT(IDWriteGdiInterop *iface,
 290     IDWriteFont *font, LOGFONTW *logfont, BOOL *is_systemfont)
 291 {
 292     struct gdiinterop *This = impl_from_IDWriteGdiInterop(iface);
 293     FIXME("(%p)->(%p %p %p): stub\n", This, font, logfont, is_systemfont);
 294     return E_NOTIMPL;
 295 }
 296
 297 static HRESULT WINAPI gdiinterop_ConvertFontFaceToLOGFONT(IDWriteGdiInterop *iface,
 298     IDWriteFontFace *fontface, LOGFONTW *logfont)
 299 {
 300     struct gdiinterop *This = impl_from_IDWriteGdiInterop(iface);
 301     TRACE("(%p)->(%p %p)\n", This, fontface, logfont);
 302     return convert_fontface_to_logfont(fontface, logfont);
 303 }
 304
 305 static HRESULT WINAPI gdiinterop_CreateFontFaceFromHdc(IDWriteGdiInterop *iface,
 306     HDC hdc, IDWriteFontFace **fontface)
 307 {
 308     struct gdiinterop *This = impl_from_IDWriteGdiInterop(iface);
 309     FIXME("(%p)->(%p %p): stub\n", This, hdc, fontface);
 310     return E_NOTIMPL;
 311 }
 312
 313 static HRESULT WINAPI gdiinterop_CreateBitmapRenderTarget(IDWriteGdiInterop *iface,
 314     HDC hdc, UINT32 width, UINT32 height, IDWriteBitmapRenderTarget **target)
 315 {
 316     struct gdiinterop *This = impl_from_IDWriteGdiInterop(iface);
 317     TRACE("(%p)->(%p %u %u %p)\n", This, hdc, width, height, target);
 318     return create_rendertarget(hdc, width, height, target);
 319 }
 320
 321 static const struct IDWriteGdiInteropVtbl gdiinteropvtbl = {
 322     gdiinterop_QueryInterface,
 323     gdiinterop_AddRef,
 324     gdiinterop_Release,
 325     gdiinterop_CreateFontFromLOGFONT,
 326     gdiinterop_ConvertFontToLOGFONT,
 327     gdiinterop_ConvertFontFaceToLOGFONT,
 328     gdiinterop_CreateFontFaceFromHdc,
 329     gdiinterop_CreateBitmapRenderTarget
 330 };
 331
 332 HRESULT get_gdiinterop(IDWriteGdiInterop **ret)
 333 {
 334     struct gdiinterop *This;
 335
 336     *ret = NULL;
 337
 338     This = heap_alloc(sizeof(struct gdiinterop));
 339     if (!This) return E_OUTOFMEMORY;
 340
 341     This->IDWriteGdiInterop_iface.lpVtbl = &gdiinteropvtbl;
 342     This->ref = 1;
 343
 344     *ret= &This->IDWriteGdiInterop_iface;
 345     return S_OK;
 346 }