dlls/uxtheme/buffer.c

   1 /*
   2  * uxtheme Double-buffered Drawing API
   3  *
   4  * Copyright (C) 2008 Reece H. Dunn
   5  * Copyright 2017 Nikolay Sivov for CodeWeavers
   6  *
   7  * This library is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU Lesser General Public
   9  * License as published by the Free Software Foundation; either
  10  * version 2.1 of the License, or (at your option) any later version.
  11  *
  12  * This library is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * Lesser General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Lesser General Public
  18  * License along with this library; if not, write to the Free Software
  19  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  20  */
  21
  22 #include "config.h"
  23
  24 #include <stdlib.h>
  25 #include <stdarg.h>
  26
  27 #include "windef.h"
  28 #include "winbase.h"
  29 #include "winuser.h"
  30 #include "wingdi.h"
  31 #include "vfwmsgs.h"
  32 #include "uxtheme.h"
  33
  34 #include "wine/debug.h"
  35
  36 WINE_DEFAULT_DEBUG_CHANNEL(uxtheme);
  37
  38 struct paintbuffer
  39 {
  40     HDC targetdc;
  41     HDC memorydc;
  42     RECT rect;
  43     void *bits;
  44 };
  45
  46 static void free_paintbuffer(struct paintbuffer *buffer)
  47 {
  48     DeleteDC(buffer->memorydc);
  49     HeapFree(GetProcessHeap(), 0, buffer);
  50 }
  51
  52 static struct paintbuffer *get_buffer_obj(HPAINTBUFFER handle)
  53 {
  54     if (!handle)
  55         return NULL;
  56     return handle;
  57 }
  58
  59 /***********************************************************************
  60  *      BufferedPaintInit                                  (UXTHEME.@)
  61  */
  62 HRESULT WINAPI BufferedPaintInit(VOID)
  63 {
  64     FIXME("Stub ()\n");
  65     return S_OK;
  66 }
  67
  68 /***********************************************************************
  69  *      BufferedPaintUnInit                                (UXTHEME.@)
  70  */
  71 HRESULT WINAPI BufferedPaintUnInit(VOID)
  72 {
  73     FIXME("Stub ()\n");
  74     return S_OK;
  75 }
  76
  77 /***********************************************************************
  78  *      BeginBufferedPaint                                 (UXTHEME.@)
  79  */
  80 HPAINTBUFFER WINAPI BeginBufferedPaint(HDC targetdc, const RECT *rect,
  81         BP_BUFFERFORMAT format, BP_PAINTPARAMS *params, HDC *retdc)
  82 {
  83     char bmibuf[FIELD_OFFSET(BITMAPINFO, bmiColors[256])];
  84     BITMAPINFO *bmi = (BITMAPINFO *)bmibuf;
  85     struct paintbuffer *buffer;
  86     HBITMAP hbm;
  87
  88     TRACE("(%p %s %d %p %p)\n", targetdc, wine_dbgstr_rect(rect), format,
  89           params, retdc);
  90
  91     if (retdc)
  92         *retdc = NULL;
  93
  94     if (!targetdc || IsRectEmpty(rect))
  95         return NULL;
  96
  97     if (params)
  98         FIXME("painting parameters are ignored\n");
  99
 100     buffer = HeapAlloc(GetProcessHeap(), 0, sizeof(*buffer));
 101     buffer->targetdc = targetdc;
 102     buffer->rect = *rect;
 103     buffer->memorydc = CreateCompatibleDC(targetdc);
 104
 105     switch (format)
 106     {
 107     case BPBF_COMPATIBLEBITMAP:
 108         hbm = CreateCompatibleBitmap(buffer->memorydc, rect->right - rect->left, rect->bottom - rect->top);
 109         buffer->bits = NULL;
 110         break;
 111     case BPBF_DIB:
 112     case BPBF_TOPDOWNDIB:
 113     case BPBF_TOPDOWNMONODIB:
 114         /* create DIB section */
 115         memset(bmi, 0, sizeof(bmibuf));
 116         bmi->bmiHeader.biSize = sizeof(bmi->bmiHeader);
 117         bmi->bmiHeader.biHeight = format == BPBF_DIB ? rect->bottom - rect->top :
 118                 -(rect->bottom - rect->top);
 119         bmi->bmiHeader.biWidth = rect->right - rect->left;
 120         bmi->bmiHeader.biBitCount = format == BPBF_TOPDOWNMONODIB ? 1 : 32;
 121         bmi->bmiHeader.biPlanes = 1;
 122         bmi->bmiHeader.biCompression = BI_RGB;
 123         hbm = CreateDIBSection(buffer->memorydc, bmi, DIB_RGB_COLORS, &buffer->bits, NULL, 0);
 124         break;
 125     default:
 126         WARN("Unknown buffer format %d\n", format);
 127         free_paintbuffer(buffer);
 128         return NULL;
 129     }
 130
 131     if (!hbm)
 132     {
 133         WARN("Failed to create buffer bitmap\n");
 134         free_paintbuffer(buffer);
 135         return NULL;
 136     }
 137
 138     DeleteObject(SelectObject(buffer->memorydc, hbm));
 139
 140     *retdc = buffer->memorydc;
 141
 142     return (HPAINTBUFFER)buffer;
 143 }
 144
 145 /***********************************************************************
 146  *      EndBufferedPaint                                   (UXTHEME.@)
 147  */
 148 HRESULT WINAPI EndBufferedPaint(HPAINTBUFFER bufferhandle, BOOL update)
 149 {
 150     struct paintbuffer *buffer = get_buffer_obj(bufferhandle);
 151
 152     TRACE("(%p %d)\n", bufferhandle, update);
 153
 154     if (!buffer)
 155         return E_INVALIDARG;
 156
 157     if (update)
 158     {
 159         if (!BitBlt(buffer->targetdc, buffer->rect.left, buffer->rect.top,
 160                 buffer->rect.right - buffer->rect.left, buffer->rect.bottom - buffer->rect.top,
 161                 buffer->memorydc, 0, 0, SRCCOPY))
 162         {
 163             WARN("BitBlt() failed\n");
 164         }
 165     }
 166
 167     free_paintbuffer(buffer);
 168     return S_OK;
 169 }
 170
 171 /***********************************************************************
 172  *      BufferedPaintClear                                 (UXTHEME.@)
 173  */
 174 HRESULT WINAPI BufferedPaintClear(HPAINTBUFFER hBufferedPaint, const RECT *prc)
 175 {
 176     FIXME("Stub (%p %p)\n", hBufferedPaint, prc);
 177     return E_NOTIMPL;
 178 }
 179
 180 /***********************************************************************
 181  *      BufferedPaintSetAlpha                              (UXTHEME.@)
 182  */
 183 HRESULT WINAPI BufferedPaintSetAlpha(HPAINTBUFFER hBufferedPaint, const RECT *prc, BYTE alpha)
 184 {
 185     FIXME("Stub (%p %p %u)\n", hBufferedPaint, prc, alpha);
 186     return E_NOTIMPL;
 187 }
 188
 189 /***********************************************************************
 190  *      GetBufferedPaintBits                               (UXTHEME.@)
 191  */
 192 HRESULT WINAPI GetBufferedPaintBits(HPAINTBUFFER bufferhandle, RGBQUAD **bits, int *width)
 193 {
 194     struct paintbuffer *buffer = get_buffer_obj(bufferhandle);
 195
 196     TRACE("(%p %p %p)\n", buffer, bits, width);
 197
 198     if (!bits || !width)
 199         return E_POINTER;
 200
 201     if (!buffer || !buffer->bits)
 202         return E_FAIL;
 203
 204     *bits = buffer->bits;
 205     *width = buffer->rect.right - buffer->rect.left;
 206
 207     return S_OK;
 208 }
 209
 210 /***********************************************************************
 211  *      GetBufferedPaintDC                                 (UXTHEME.@)
 212  */
 213 HDC WINAPI GetBufferedPaintDC(HPAINTBUFFER bufferhandle)
 214 {
 215     struct paintbuffer *buffer = get_buffer_obj(bufferhandle);
 216
 217     TRACE("(%p)\n", buffer);
 218
 219     return buffer ? buffer->memorydc : NULL;
 220 }
 221
 222 /***********************************************************************
 223  *      GetBufferedPaintTargetDC                           (UXTHEME.@)
 224  */
 225 HDC WINAPI GetBufferedPaintTargetDC(HPAINTBUFFER bufferhandle)
 226 {
 227     struct paintbuffer *buffer = get_buffer_obj(bufferhandle);
 228
 229     TRACE("(%p)\n", buffer);
 230
 231     return buffer ? buffer->targetdc : NULL;
 232 }
 233
 234 /***********************************************************************
 235  *      GetBufferedPaintTargetRect                         (UXTHEME.@)
 236  */
 237 HRESULT WINAPI GetBufferedPaintTargetRect(HPAINTBUFFER bufferhandle, RECT *rect)
 238 {
 239     struct paintbuffer *buffer = get_buffer_obj(bufferhandle);
 240
 241     TRACE("(%p %p)\n", buffer, rect);
 242
 243     if (!rect)
 244         return E_POINTER;
 245
 246     if (!buffer)
 247         return E_FAIL;
 248
 249     *rect = buffer->rect;
 250     return S_OK;
 251 }
 252
 253 /***********************************************************************
 254  *      BeginBufferedAnimation                             (UXTHEME.@)
 255  */
 256 HANIMATIONBUFFER WINAPI BeginBufferedAnimation(HWND hwnd, HDC hdcTarget, const RECT *rcTarget,
 257                                                BP_BUFFERFORMAT dwFormat, BP_PAINTPARAMS *pPaintParams,
 258                                                BP_ANIMATIONPARAMS *pAnimationParams, HDC *phdcFrom,
 259                                                HDC *phdcTo)
 260 {
 261     FIXME("Stub (%p %p %p %u %p %p %p %p)\n", hwnd, hdcTarget, rcTarget, dwFormat,
 262           pPaintParams, pAnimationParams, phdcFrom, phdcTo);
 263
 264     return NULL;
 265 }
 266
 267 /***********************************************************************
 268  *      BufferedPaintRenderAnimation                       (UXTHEME.@)
 269  */
 270 BOOL WINAPI BufferedPaintRenderAnimation(HWND hwnd, HDC hdcTarget)
 271 {
 272     FIXME("Stub (%p %p)\n", hwnd, hdcTarget);
 273
 274     return FALSE;
 275 }
 276
 277 /***********************************************************************
 278  *      BufferedPaintStopAllAnimations                     (UXTHEME.@)
 279  */
 280 HRESULT WINAPI BufferedPaintStopAllAnimations(HWND hwnd)
 281 {
 282     FIXME("Stub (%p)\n", hwnd);
 283
 284     return E_NOTIMPL;
 285 }
 286
 287 /***********************************************************************
 288  *      EndBufferedAnimation                               (UXTHEME.@)
 289  */
 290 HRESULT WINAPI EndBufferedAnimation(HANIMATIONBUFFER hbpAnimation, BOOL fUpdateTarget)
 291 {
 292     FIXME("Stub (%p %u)\n", hbpAnimation, fUpdateTarget);
 293
 294     return E_NOTIMPL;
 295 }