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