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 <stdlib.h>
  23 #include <stdarg.h>
  24
  25 #include "windef.h"
  26 #include "winbase.h"
  27 #include "winuser.h"
  28 #include "wingdi.h"
  29 #include "vfwmsgs.h"
  30 #include "uxtheme.h"
  31
  32 #include "wine/debug.h"
  33 #include "wine/heap.h"
  34
  35 WINE_DEFAULT_DEBUG_CHANNEL(uxtheme);
  36
  37 struct paintbuffer
  38 {
  39     HDC targetdc;
  40     HDC memorydc;
  41     HBITMAP bitmap;
  42     RECT rect;
  43     void *bits;
  44 };
  45
  46 static void free_paintbuffer(struct paintbuffer *buffer)
  47 {
  48     DeleteObject(buffer->bitmap);
  49     DeleteDC(buffer->memorydc);
  50     heap_free(buffer);
  51 }
  52
  53 static struct paintbuffer *get_buffer_obj(HPAINTBUFFER handle)
  54 {
  55     return handle;
  56 }
  57
  58 /***********************************************************************
  59  *      BufferedPaintInit                                  (UXTHEME.@)
  60  */
  61 HRESULT WINAPI BufferedPaintInit(VOID)
  62 {
  63     FIXME("Stub ()\n");
  64     return S_OK;
  65 }
  66
  67 /***********************************************************************
  68  *      BufferedPaintUnInit                                (UXTHEME.@)
  69  */
  70 HRESULT WINAPI BufferedPaintUnInit(VOID)
  71 {
  72     FIXME("Stub ()\n");
  73     return S_OK;
  74 }
  75
  76 /***********************************************************************
  77  *      BeginBufferedPaint                                 (UXTHEME.@)
  78  */
  79 HPAINTBUFFER WINAPI BeginBufferedPaint(HDC targetdc, const RECT *rect,
  80         BP_BUFFERFORMAT format, BP_PAINTPARAMS *params, HDC *retdc)
  81 {
  82     char bmibuf[FIELD_OFFSET(BITMAPINFO, bmiColors[256])];
  83     BITMAPINFO *bmi = (BITMAPINFO *)bmibuf;
  84     struct paintbuffer *buffer;
  85
  86     TRACE("(%p %s %d %p %p)\n", targetdc, wine_dbgstr_rect(rect), format,
  87           params, retdc);
  88
  89     if (retdc)
  90         *retdc = NULL;
  91
  92     if (!targetdc || IsRectEmpty(rect))
  93         return NULL;
  94
  95     if (params)
  96         FIXME("painting parameters are ignored\n");
  97
  98     buffer = heap_alloc(sizeof(*buffer));
  99     buffer->targetdc = targetdc;
 100     buffer->rect = *rect;
 101     buffer->memorydc = CreateCompatibleDC(targetdc);
 102
 103     switch (format)
 104     {
 105     case BPBF_COMPATIBLEBITMAP:
 106         buffer->bitmap = CreateCompatibleBitmap(targetdc, rect->right - rect->left, rect->bottom - rect->top);
 107         buffer->bits = NULL;
 108         break;
 109     case BPBF_DIB:
 110     case BPBF_TOPDOWNDIB:
 111     case BPBF_TOPDOWNMONODIB:
 112         /* create DIB section */
 113         memset(bmi, 0, sizeof(bmibuf));
 114         bmi->bmiHeader.biSize = sizeof(bmi->bmiHeader);
 115         bmi->bmiHeader.biHeight = format == BPBF_DIB ? rect->bottom - rect->top :
 116                 -(rect->bottom - rect->top);
 117         bmi->bmiHeader.biWidth = rect->right - rect->left;
 118         bmi->bmiHeader.biBitCount = format == BPBF_TOPDOWNMONODIB ? 1 : 32;
 119         bmi->bmiHeader.biPlanes = 1;
 120         bmi->bmiHeader.biCompression = BI_RGB;
 121         buffer->bitmap = CreateDIBSection(buffer->memorydc, bmi, DIB_RGB_COLORS, &buffer->bits, NULL, 0);
 122         break;
 123     default:
 124         WARN("Unknown buffer format %d\n", format);
 125         buffer->bitmap = NULL;
 126         free_paintbuffer(buffer);
 127         return NULL;
 128     }
 129
 130     if (!buffer->bitmap)
 131     {
 132         WARN("Failed to create buffer bitmap\n");
 133         free_paintbuffer(buffer);
 134         return NULL;
 135     }
 136
 137     SetWindowOrgEx(buffer->memorydc, rect->left, rect->top, NULL);
 138     IntersectClipRect(buffer->memorydc, rect->left, rect->top, rect->right, rect->bottom);
 139     DeleteObject(SelectObject(buffer->memorydc, buffer->bitmap));
 140
 141     *retdc = buffer->memorydc;
 142
 143     return (HPAINTBUFFER)buffer;
 144 }
 145
 146 /***********************************************************************
 147  *      EndBufferedPaint                                   (UXTHEME.@)
 148  */
 149 HRESULT WINAPI EndBufferedPaint(HPAINTBUFFER bufferhandle, BOOL update)
 150 {
 151     struct paintbuffer *buffer = get_buffer_obj(bufferhandle);
 152
 153     TRACE("(%p %d)\n", bufferhandle, update);
 154
 155     if (!buffer)
 156         return E_INVALIDARG;
 157
 158     if (update)
 159     {
 160         if (!BitBlt(buffer->targetdc, buffer->rect.left, buffer->rect.top,
 161                 buffer->rect.right - buffer->rect.left, buffer->rect.bottom - buffer->rect.top,
 162                 buffer->memorydc, buffer->rect.left, buffer->rect.top, SRCCOPY))
 163         {
 164             WARN("BitBlt() failed\n");
 165         }
 166     }
 167
 168     free_paintbuffer(buffer);
 169     return S_OK;
 170 }
 171
 172 /***********************************************************************
 173  *      BufferedPaintClear                                 (UXTHEME.@)
 174  */
 175 HRESULT WINAPI BufferedPaintClear(HPAINTBUFFER hBufferedPaint, const RECT *prc)
 176 {
 177     FIXME("Stub (%p %p)\n", hBufferedPaint, prc);
 178     return E_NOTIMPL;
 179 }
 180
 181 /***********************************************************************
 182  *      BufferedPaintSetAlpha                              (UXTHEME.@)
 183  */
 184 HRESULT WINAPI BufferedPaintSetAlpha(HPAINTBUFFER hBufferedPaint, const RECT *prc, BYTE alpha)
 185 {
 186     FIXME("Stub (%p %p %u)\n", hBufferedPaint, prc, alpha);
 187     return E_NOTIMPL;
 188 }
 189
 190 /***********************************************************************
 191  *      GetBufferedPaintBits                               (UXTHEME.@)
 192  */
 193 HRESULT WINAPI GetBufferedPaintBits(HPAINTBUFFER bufferhandle, RGBQUAD **bits, int *width)
 194 {
 195     struct paintbuffer *buffer = get_buffer_obj(bufferhandle);
 196
 197     TRACE("(%p %p %p)\n", buffer, bits, width);
 198
 199     if (!bits || !width)
 200         return E_POINTER;
 201
 202     if (!buffer || !buffer->bits)
 203         return E_FAIL;
 204
 205     *bits = buffer->bits;
 206     *width = buffer->rect.right - buffer->rect.left;
 207
 208     return S_OK;
 209 }
 210
 211 /***********************************************************************
 212  *      GetBufferedPaintDC                                 (UXTHEME.@)
 213  */
 214 HDC WINAPI GetBufferedPaintDC(HPAINTBUFFER bufferhandle)
 215 {
 216     struct paintbuffer *buffer = get_buffer_obj(bufferhandle);
 217
 218     TRACE("(%p)\n", buffer);
 219
 220     return buffer ? buffer->memorydc : NULL;
 221 }
 222
 223 /***********************************************************************
 224  *      GetBufferedPaintTargetDC                           (UXTHEME.@)
 225  */
 226 HDC WINAPI GetBufferedPaintTargetDC(HPAINTBUFFER bufferhandle)
 227 {
 228     struct paintbuffer *buffer = get_buffer_obj(bufferhandle);
 229
 230     TRACE("(%p)\n", buffer);
 231
 232     return buffer ? buffer->targetdc : NULL;
 233 }
 234
 235 /***********************************************************************
 236  *      GetBufferedPaintTargetRect                         (UXTHEME.@)
 237  */
 238 HRESULT WINAPI GetBufferedPaintTargetRect(HPAINTBUFFER bufferhandle, RECT *rect)
 239 {
 240     struct paintbuffer *buffer = get_buffer_obj(bufferhandle);
 241
 242     TRACE("(%p %p)\n", buffer, rect);
 243
 244     if (!rect)
 245         return E_POINTER;
 246
 247     if (!buffer)
 248         return E_FAIL;
 249
 250     *rect = buffer->rect;
 251     return S_OK;
 252 }
 253
 254 /***********************************************************************
 255  *      BeginBufferedAnimation                             (UXTHEME.@)
 256  */
 257 HANIMATIONBUFFER WINAPI BeginBufferedAnimation(HWND hwnd, HDC hdcTarget, const RECT *rcTarget,
 258                                                BP_BUFFERFORMAT dwFormat, BP_PAINTPARAMS *pPaintParams,
 259                                                BP_ANIMATIONPARAMS *pAnimationParams, HDC *phdcFrom,
 260                                                HDC *phdcTo)
 261 {
 262     FIXME("Stub (%p %p %p %u %p %p %p %p)\n", hwnd, hdcTarget, rcTarget, dwFormat,
 263           pPaintParams, pAnimationParams, phdcFrom, phdcTo);
 264
 265     return NULL;
 266 }
 267
 268 /***********************************************************************
 269  *      BufferedPaintRenderAnimation                       (UXTHEME.@)
 270  */
 271 BOOL WINAPI BufferedPaintRenderAnimation(HWND hwnd, HDC hdcTarget)
 272 {
 273     FIXME("Stub (%p %p)\n", hwnd, hdcTarget);
 274
 275     return FALSE;
 276 }
 277
 278 /***********************************************************************
 279  *      BufferedPaintStopAllAnimations                     (UXTHEME.@)
 280  */
 281 HRESULT WINAPI BufferedPaintStopAllAnimations(HWND hwnd)
 282 {
 283     FIXME("Stub (%p)\n", hwnd);
 284
 285     return E_NOTIMPL;
 286 }
 287
 288 /***********************************************************************
 289  *      EndBufferedAnimation                               (UXTHEME.@)
 290  */
 291 HRESULT WINAPI EndBufferedAnimation(HANIMATIONBUFFER hbpAnimation, BOOL fUpdateTarget)
 292 {
 293     FIXME("Stub (%p %u)\n", hbpAnimation, fUpdateTarget);
 294
 295     return E_NOTIMPL;
 296 }