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 #include "wine/heap.h"
  36
  37 WINE_DEFAULT_DEBUG_CHANNEL(uxtheme);
  38
  39 struct paintbuffer
  40 {
  41     HDC targetdc;
  42     HDC memorydc;
  43     HBITMAP bitmap;
  44     RECT rect;
  45     void *bits;
  46 };
  47
  48 static void free_paintbuffer(struct paintbuffer *buffer)
  49 {
  50     DeleteObject(buffer->bitmap);
  51     DeleteDC(buffer->memorydc);
  52     heap_free(buffer);
  53 }
  54
  55 static struct paintbuffer *get_buffer_obj(HPAINTBUFFER handle)
  56 {
  57     if (!handle)
  58         return NULL;
  59     return handle;
  60 }
  61
  62 /***********************************************************************
  63  *      BufferedPaintInit                                  (UXTHEME.@)
  64  */
  65 HRESULT WINAPI BufferedPaintInit(VOID)
  66 {
  67     FIXME("Stub ()\n");
  68     return S_OK;
  69 }
  70
  71 /***********************************************************************
  72  *      BufferedPaintUnInit                                (UXTHEME.@)
  73  */
  74 HRESULT WINAPI BufferedPaintUnInit(VOID)
  75 {
  76     FIXME("Stub ()\n");
  77     return S_OK;
  78 }
  79
  80 /***********************************************************************
  81  *      BeginBufferedPaint                                 (UXTHEME.@)
  82  */
  83 HPAINTBUFFER WINAPI BeginBufferedPaint(HDC targetdc, const RECT *rect,
  84         BP_BUFFERFORMAT format, BP_PAINTPARAMS *params, HDC *retdc)
  85 {
  86     char bmibuf[FIELD_OFFSET(BITMAPINFO, bmiColors[256])];
  87     BITMAPINFO *bmi = (BITMAPINFO *)bmibuf;
  88     struct paintbuffer *buffer;
  89
  90     TRACE("(%p %s %d %p %p)\n", targetdc, wine_dbgstr_rect(rect), format,
  91           params, retdc);
  92
  93     if (retdc)
  94         *retdc = NULL;
  95
  96     if (!targetdc || IsRectEmpty(rect))
  97         return NULL;
  98
  99     if (params)
 100         FIXME("painting parameters are ignored\n");
 101
 102     buffer = heap_alloc(sizeof(*buffer));
 103     buffer->targetdc = targetdc;
 104     buffer->rect = *rect;
 105     buffer->memorydc = CreateCompatibleDC(targetdc);
 106
 107     switch (format)
 108     {
 109     case BPBF_COMPATIBLEBITMAP:
 110         buffer->bitmap = CreateCompatibleBitmap(targetdc, rect->right - rect->left, rect->bottom - rect->top);
 111         buffer->bits = NULL;
 112         break;
 113     case BPBF_DIB:
 114     case BPBF_TOPDOWNDIB:
 115     case BPBF_TOPDOWNMONODIB:
 116         /* create DIB section */
 117         memset(bmi, 0, sizeof(bmibuf));
 118         bmi->bmiHeader.biSize = sizeof(bmi->bmiHeader);
 119         bmi->bmiHeader.biHeight = format == BPBF_DIB ? rect->bottom - rect->top :
 120                 -(rect->bottom - rect->top);
 121         bmi->bmiHeader.biWidth = rect->right - rect->left;
 122         bmi->bmiHeader.biBitCount = format == BPBF_TOPDOWNMONODIB ? 1 : 32;
 123         bmi->bmiHeader.biPlanes = 1;
 124         bmi->bmiHeader.biCompression = BI_RGB;
 125         buffer->bitmap = CreateDIBSection(buffer->memorydc, bmi, DIB_RGB_COLORS, &buffer->bits, NULL, 0);
 126         break;
 127     default:
 128         WARN("Unknown buffer format %d\n", format);
 129         buffer->bitmap = NULL;
 130         free_paintbuffer(buffer);
 131         return NULL;
 132     }
 133
 134     if (!buffer->bitmap)
 135     {
 136         WARN("Failed to create buffer bitmap\n");
 137         free_paintbuffer(buffer);
 138         return NULL;
 139     }
 140
 141     SetWindowOrgEx(buffer->memorydc, rect->left, rect->top, NULL);
 142     IntersectClipRect(buffer->memorydc, rect->left, rect->top, rect->right, rect->bottom);
 143     DeleteObject(SelectObject(buffer->memorydc, buffer->bitmap));
 144
 145     *retdc = buffer->memorydc;
 146
 147     return (HPAINTBUFFER)buffer;
 148 }
 149
 150 /***********************************************************************
 151  *      EndBufferedPaint                                   (UXTHEME.@)
 152  */
 153 HRESULT WINAPI EndBufferedPaint(HPAINTBUFFER bufferhandle, BOOL update)
 154 {
 155     struct paintbuffer *buffer = get_buffer_obj(bufferhandle);
 156
 157     TRACE("(%p %d)\n", bufferhandle, update);
 158
 159     if (!buffer)
 160         return E_INVALIDARG;
 161
 162     if (update)
 163     {
 164         if (!BitBlt(buffer->targetdc, buffer->rect.left, buffer->rect.top,
 165                 buffer->rect.right - buffer->rect.left, buffer->rect.bottom - buffer->rect.top,
 166                 buffer->memorydc, buffer->rect.left, buffer->rect.top, SRCCOPY))
 167         {
 168             WARN("BitBlt() failed\n");
 169         }
 170     }
 171
 172     free_paintbuffer(buffer);
 173     return S_OK;
 174 }
 175
 176 /***********************************************************************
 177  *      BufferedPaintClear                                 (UXTHEME.@)
 178  */
 179 HRESULT WINAPI BufferedPaintClear(HPAINTBUFFER hBufferedPaint, const RECT *prc)
 180 {
 181     FIXME("Stub (%p %p)\n", hBufferedPaint, prc);
 182     return E_NOTIMPL;
 183 }
 184
 185 /***********************************************************************
 186  *      BufferedPaintSetAlpha                              (UXTHEME.@)
 187  */
 188 HRESULT WINAPI BufferedPaintSetAlpha(HPAINTBUFFER hBufferedPaint, const RECT *prc, BYTE alpha)
 189 {
 190     FIXME("Stub (%p %p %u)\n", hBufferedPaint, prc, alpha);
 191     return E_NOTIMPL;
 192 }
 193
 194 /***********************************************************************
 195  *      GetBufferedPaintBits                               (UXTHEME.@)
 196  */
 197 HRESULT WINAPI GetBufferedPaintBits(HPAINTBUFFER bufferhandle, RGBQUAD **bits, int *width)
 198 {
 199     struct paintbuffer *buffer = get_buffer_obj(bufferhandle);
 200
 201     TRACE("(%p %p %p)\n", buffer, bits, width);
 202
 203     if (!bits || !width)
 204         return E_POINTER;
 205
 206     if (!buffer || !buffer->bits)
 207         return E_FAIL;
 208
 209     *bits = buffer->bits;
 210     *width = buffer->rect.right - buffer->rect.left;
 211
 212     return S_OK;
 213 }
 214
 215 /***********************************************************************
 216  *      GetBufferedPaintDC                                 (UXTHEME.@)
 217  */
 218 HDC WINAPI GetBufferedPaintDC(HPAINTBUFFER bufferhandle)
 219 {
 220     struct paintbuffer *buffer = get_buffer_obj(bufferhandle);
 221
 222     TRACE("(%p)\n", buffer);
 223
 224     return buffer ? buffer->memorydc : NULL;
 225 }
 226
 227 /***********************************************************************
 228  *      GetBufferedPaintTargetDC                           (UXTHEME.@)
 229  */
 230 HDC WINAPI GetBufferedPaintTargetDC(HPAINTBUFFER bufferhandle)
 231 {
 232     struct paintbuffer *buffer = get_buffer_obj(bufferhandle);
 233
 234     TRACE("(%p)\n", buffer);
 235
 236     return buffer ? buffer->targetdc : NULL;
 237 }
 238
 239 /***********************************************************************
 240  *      GetBufferedPaintTargetRect                         (UXTHEME.@)
 241  */
 242 HRESULT WINAPI GetBufferedPaintTargetRect(HPAINTBUFFER bufferhandle, RECT *rect)
 243 {
 244     struct paintbuffer *buffer = get_buffer_obj(bufferhandle);
 245
 246     TRACE("(%p %p)\n", buffer, rect);
 247
 248     if (!rect)
 249         return E_POINTER;
 250
 251     if (!buffer)
 252         return E_FAIL;
 253
 254     *rect = buffer->rect;
 255     return S_OK;
 256 }
 257
 258 /***********************************************************************
 259  *      BeginBufferedAnimation                             (UXTHEME.@)
 260  */
 261 HANIMATIONBUFFER WINAPI BeginBufferedAnimation(HWND hwnd, HDC hdcTarget, const RECT *rcTarget,
 262                                                BP_BUFFERFORMAT dwFormat, BP_PAINTPARAMS *pPaintParams,
 263                                                BP_ANIMATIONPARAMS *pAnimationParams, HDC *phdcFrom,
 264                                                HDC *phdcTo)
 265 {
 266     FIXME("Stub (%p %p %p %u %p %p %p %p)\n", hwnd, hdcTarget, rcTarget, dwFormat,
 267           pPaintParams, pAnimationParams, phdcFrom, phdcTo);
 268
 269     return NULL;
 270 }
 271
 272 /***********************************************************************
 273  *      BufferedPaintRenderAnimation                       (UXTHEME.@)
 274  */
 275 BOOL WINAPI BufferedPaintRenderAnimation(HWND hwnd, HDC hdcTarget)
 276 {
 277     FIXME("Stub (%p %p)\n", hwnd, hdcTarget);
 278
 279     return FALSE;
 280 }
 281
 282 /***********************************************************************
 283  *      BufferedPaintStopAllAnimations                     (UXTHEME.@)
 284  */
 285 HRESULT WINAPI BufferedPaintStopAllAnimations(HWND hwnd)
 286 {
 287     FIXME("Stub (%p)\n", hwnd);
 288
 289     return E_NOTIMPL;
 290 }
 291
 292 /***********************************************************************
 293  *      EndBufferedAnimation                               (UXTHEME.@)
 294  */
 295 HRESULT WINAPI EndBufferedAnimation(HANIMATIONBUFFER hbpAnimation, BOOL fUpdateTarget)
 296 {
 297     FIXME("Stub (%p %u)\n", hbpAnimation, fUpdateTarget);
 298
 299     return E_NOTIMPL;
 300 }