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     if (!handle)
  56         return NULL;
  57     return handle;
  58 }
  59
  60 /***********************************************************************
  61  *      BufferedPaintInit                                  (UXTHEME.@)
  62  */
  63 HRESULT WINAPI BufferedPaintInit(VOID)
  64 {
  65     FIXME("Stub ()\n");
  66     return S_OK;
  67 }
  68
  69 /***********************************************************************
  70  *      BufferedPaintUnInit                                (UXTHEME.@)
  71  */
  72 HRESULT WINAPI BufferedPaintUnInit(VOID)
  73 {
  74     FIXME("Stub ()\n");
  75     return S_OK;
  76 }
  77
  78 /***********************************************************************
  79  *      BeginBufferedPaint                                 (UXTHEME.@)
  80  */
  81 HPAINTBUFFER WINAPI BeginBufferedPaint(HDC targetdc, const RECT *rect,
  82         BP_BUFFERFORMAT format, BP_PAINTPARAMS *params, HDC *retdc)
  83 {
  84     char bmibuf[FIELD_OFFSET(BITMAPINFO, bmiColors[256])];
  85     BITMAPINFO *bmi = (BITMAPINFO *)bmibuf;
  86     struct paintbuffer *buffer;
  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 = heap_alloc(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         buffer->bitmap = CreateCompatibleBitmap(targetdc, 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         buffer->bitmap = CreateDIBSection(buffer->memorydc, bmi, DIB_RGB_COLORS, &buffer->bits, NULL, 0);
 124         break;
 125     default:
 126         WARN("Unknown buffer format %d\n", format);
 127         buffer->bitmap = NULL;
 128         free_paintbuffer(buffer);
 129         return NULL;
 130     }
 131
 132     if (!buffer->bitmap)
 133     {
 134         WARN("Failed to create buffer bitmap\n");
 135         free_paintbuffer(buffer);
 136         return NULL;
 137     }
 138
 139     SetWindowOrgEx(buffer->memorydc, rect->left, rect->top, NULL);
 140     IntersectClipRect(buffer->memorydc, rect->left, rect->top, rect->right, rect->bottom);
 141     DeleteObject(SelectObject(buffer->memorydc, buffer->bitmap));
 142
 143     *retdc = buffer->memorydc;
 144
 145     return (HPAINTBUFFER)buffer;
 146 }
 147
 148 /***********************************************************************
 149  *      EndBufferedPaint                                   (UXTHEME.@)
 150  */
 151 HRESULT WINAPI EndBufferedPaint(HPAINTBUFFER bufferhandle, BOOL update)
 152 {
 153     struct paintbuffer *buffer = get_buffer_obj(bufferhandle);
 154
 155     TRACE("(%p %d)\n", bufferhandle, update);
 156
 157     if (!buffer)
 158         return E_INVALIDARG;
 159
 160     if (update)
 161     {
 162         if (!BitBlt(buffer->targetdc, buffer->rect.left, buffer->rect.top,
 163                 buffer->rect.right - buffer->rect.left, buffer->rect.bottom - buffer->rect.top,
 164                 buffer->memorydc, buffer->rect.left, buffer->rect.top, SRCCOPY))
 165         {
 166             WARN("BitBlt() failed\n");
 167         }
 168     }
 169
 170     free_paintbuffer(buffer);
 171     return S_OK;
 172 }
 173
 174 /***********************************************************************
 175  *      BufferedPaintClear                                 (UXTHEME.@)
 176  */
 177 HRESULT WINAPI BufferedPaintClear(HPAINTBUFFER hBufferedPaint, const RECT *prc)
 178 {
 179     FIXME("Stub (%p %p)\n", hBufferedPaint, prc);
 180     return E_NOTIMPL;
 181 }
 182
 183 /***********************************************************************
 184  *      BufferedPaintSetAlpha                              (UXTHEME.@)
 185  */
 186 HRESULT WINAPI BufferedPaintSetAlpha(HPAINTBUFFER hBufferedPaint, const RECT *prc, BYTE alpha)
 187 {
 188     FIXME("Stub (%p %p %u)\n", hBufferedPaint, prc, alpha);
 189     return E_NOTIMPL;
 190 }
 191
 192 /***********************************************************************
 193  *      GetBufferedPaintBits                               (UXTHEME.@)
 194  */
 195 HRESULT WINAPI GetBufferedPaintBits(HPAINTBUFFER bufferhandle, RGBQUAD **bits, int *width)
 196 {
 197     struct paintbuffer *buffer = get_buffer_obj(bufferhandle);
 198
 199     TRACE("(%p %p %p)\n", buffer, bits, width);
 200
 201     if (!bits || !width)
 202         return E_POINTER;
 203
 204     if (!buffer || !buffer->bits)
 205         return E_FAIL;
 206
 207     *bits = buffer->bits;
 208     *width = buffer->rect.right - buffer->rect.left;
 209
 210     return S_OK;
 211 }
 212
 213 /***********************************************************************
 214  *      GetBufferedPaintDC                                 (UXTHEME.@)
 215  */
 216 HDC WINAPI GetBufferedPaintDC(HPAINTBUFFER bufferhandle)
 217 {
 218     struct paintbuffer *buffer = get_buffer_obj(bufferhandle);
 219
 220     TRACE("(%p)\n", buffer);
 221
 222     return buffer ? buffer->memorydc : NULL;
 223 }
 224
 225 /***********************************************************************
 226  *      GetBufferedPaintTargetDC                           (UXTHEME.@)
 227  */
 228 HDC WINAPI GetBufferedPaintTargetDC(HPAINTBUFFER bufferhandle)
 229 {
 230     struct paintbuffer *buffer = get_buffer_obj(bufferhandle);
 231
 232     TRACE("(%p)\n", buffer);
 233
 234     return buffer ? buffer->targetdc : NULL;
 235 }
 236
 237 /***********************************************************************
 238  *      GetBufferedPaintTargetRect                         (UXTHEME.@)
 239  */
 240 HRESULT WINAPI GetBufferedPaintTargetRect(HPAINTBUFFER bufferhandle, RECT *rect)
 241 {
 242     struct paintbuffer *buffer = get_buffer_obj(bufferhandle);
 243
 244     TRACE("(%p %p)\n", buffer, rect);
 245
 246     if (!rect)
 247         return E_POINTER;
 248
 249     if (!buffer)
 250         return E_FAIL;
 251
 252     *rect = buffer->rect;
 253     return S_OK;
 254 }
 255
 256 /***********************************************************************
 257  *      BeginBufferedAnimation                             (UXTHEME.@)
 258  */
 259 HANIMATIONBUFFER WINAPI BeginBufferedAnimation(HWND hwnd, HDC hdcTarget, const RECT *rcTarget,
 260                                                BP_BUFFERFORMAT dwFormat, BP_PAINTPARAMS *pPaintParams,
 261                                                BP_ANIMATIONPARAMS *pAnimationParams, HDC *phdcFrom,
 262                                                HDC *phdcTo)
 263 {
 264     FIXME("Stub (%p %p %p %u %p %p %p %p)\n", hwnd, hdcTarget, rcTarget, dwFormat,
 265           pPaintParams, pAnimationParams, phdcFrom, phdcTo);
 266
 267     return NULL;
 268 }
 269
 270 /***********************************************************************
 271  *      BufferedPaintRenderAnimation                       (UXTHEME.@)
 272  */
 273 BOOL WINAPI BufferedPaintRenderAnimation(HWND hwnd, HDC hdcTarget)
 274 {
 275     FIXME("Stub (%p %p)\n", hwnd, hdcTarget);
 276
 277     return FALSE;
 278 }
 279
 280 /***********************************************************************
 281  *      BufferedPaintStopAllAnimations                     (UXTHEME.@)
 282  */
 283 HRESULT WINAPI BufferedPaintStopAllAnimations(HWND hwnd)
 284 {
 285     FIXME("Stub (%p)\n", hwnd);
 286
 287     return E_NOTIMPL;
 288 }
 289
 290 /***********************************************************************
 291  *      EndBufferedAnimation                               (UXTHEME.@)
 292  */
 293 HRESULT WINAPI EndBufferedAnimation(HANIMATIONBUFFER hbpAnimation, BOOL fUpdateTarget)
 294 {
 295     FIXME("Stub (%p %u)\n", hbpAnimation, fUpdateTarget);
 296
 297     return E_NOTIMPL;
 298 }