445 lines
15 KiB
C
445 lines
15 KiB
C
/*
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* Mac driver window surface implementation
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*
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* Copyright 1993, 1994, 2011 Alexandre Julliard
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* Copyright 2006 Damjan Jovanovic
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* Copyright 2012, 2013 Ken Thomases for CodeWeavers, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#include "config.h"
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#include "macdrv.h"
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#include "winuser.h"
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WINE_DEFAULT_DEBUG_CHANNEL(macdrv);
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/* only for use on sanitized BITMAPINFO structures */
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static inline int get_dib_info_size(const BITMAPINFO *info, UINT coloruse)
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{
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if (info->bmiHeader.biCompression == BI_BITFIELDS)
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return sizeof(BITMAPINFOHEADER) + 3 * sizeof(DWORD);
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if (coloruse == DIB_PAL_COLORS)
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return sizeof(BITMAPINFOHEADER) + info->bmiHeader.biClrUsed * sizeof(WORD);
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return FIELD_OFFSET(BITMAPINFO, bmiColors[info->bmiHeader.biClrUsed]);
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}
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static inline int get_dib_stride(int width, int bpp)
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{
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return ((width * bpp + 31) >> 3) & ~3;
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}
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static inline int get_dib_image_size(const BITMAPINFO *info)
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{
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return get_dib_stride(info->bmiHeader.biWidth, info->bmiHeader.biBitCount)
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* abs(info->bmiHeader.biHeight);
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}
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static inline void reset_bounds(RECT *bounds)
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{
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bounds->left = bounds->top = INT_MAX;
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bounds->right = bounds->bottom = INT_MIN;
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}
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struct macdrv_window_surface
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{
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struct window_surface header;
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macdrv_window window;
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RECT bounds;
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HRGN region;
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HRGN drawn;
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BOOL use_alpha;
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RGNDATA *blit_data;
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BYTE *bits;
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pthread_mutex_t mutex;
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BITMAPINFO info; /* variable size, must be last */
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};
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static struct macdrv_window_surface *get_mac_surface(struct window_surface *surface)
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{
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return (struct macdrv_window_surface *)surface;
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}
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/***********************************************************************
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* update_blit_data
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*/
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static void update_blit_data(struct macdrv_window_surface *surface)
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{
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HeapFree(GetProcessHeap(), 0, surface->blit_data);
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surface->blit_data = NULL;
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if (surface->drawn)
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{
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HRGN blit = CreateRectRgn(0, 0, 0, 0);
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if (CombineRgn(blit, surface->drawn, 0, RGN_COPY) > NULLREGION &&
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(!surface->region || CombineRgn(blit, blit, surface->region, RGN_AND) > NULLREGION) &&
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OffsetRgn(blit, surface->header.rect.left, surface->header.rect.top) > NULLREGION)
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surface->blit_data = get_region_data(blit, 0);
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DeleteObject(blit);
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}
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}
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/***********************************************************************
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* macdrv_surface_lock
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*/
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static void macdrv_surface_lock(struct window_surface *window_surface)
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{
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struct macdrv_window_surface *surface = get_mac_surface(window_surface);
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pthread_mutex_lock(&surface->mutex);
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}
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/***********************************************************************
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* macdrv_surface_unlock
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*/
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static void macdrv_surface_unlock(struct window_surface *window_surface)
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{
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struct macdrv_window_surface *surface = get_mac_surface(window_surface);
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pthread_mutex_unlock(&surface->mutex);
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}
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/***********************************************************************
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* macdrv_surface_get_bitmap_info
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*/
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static void *macdrv_surface_get_bitmap_info(struct window_surface *window_surface,
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BITMAPINFO *info)
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{
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struct macdrv_window_surface *surface = get_mac_surface(window_surface);
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memcpy(info, &surface->info, get_dib_info_size(&surface->info, DIB_RGB_COLORS));
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return surface->bits;
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}
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/***********************************************************************
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* macdrv_surface_get_bounds
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*/
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static RECT *macdrv_surface_get_bounds(struct window_surface *window_surface)
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{
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struct macdrv_window_surface *surface = get_mac_surface(window_surface);
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return &surface->bounds;
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}
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/***********************************************************************
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* macdrv_surface_set_region
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*/
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static void macdrv_surface_set_region(struct window_surface *window_surface, HRGN region)
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{
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struct macdrv_window_surface *surface = get_mac_surface(window_surface);
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TRACE("updating surface %p with %p\n", surface, region);
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window_surface->funcs->lock(window_surface);
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if (region)
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{
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if (!surface->region) surface->region = CreateRectRgn(0, 0, 0, 0);
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CombineRgn(surface->region, region, 0, RGN_COPY);
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}
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else
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{
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if (surface->region) DeleteObject(surface->region);
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surface->region = 0;
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}
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update_blit_data(surface);
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window_surface->funcs->unlock(window_surface);
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}
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/***********************************************************************
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* macdrv_surface_flush
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*/
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static void macdrv_surface_flush(struct window_surface *window_surface)
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{
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struct macdrv_window_surface *surface = get_mac_surface(window_surface);
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CGRect rect;
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HRGN region;
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window_surface->funcs->lock(window_surface);
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TRACE("flushing %p %s bounds %s bits %p\n", surface, wine_dbgstr_rect(&surface->header.rect),
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wine_dbgstr_rect(&surface->bounds), surface->bits);
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rect = cgrect_from_rect(surface->bounds);
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rect = CGRectOffset(rect, surface->header.rect.left, surface->header.rect.top);
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if (!IsRectEmpty(&surface->bounds) && (region = CreateRectRgnIndirect(&surface->bounds)))
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{
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if (surface->drawn)
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{
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CombineRgn(surface->drawn, surface->drawn, region, RGN_OR);
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DeleteObject(region);
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}
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else
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surface->drawn = region;
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}
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update_blit_data(surface);
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reset_bounds(&surface->bounds);
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window_surface->funcs->unlock(window_surface);
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if (!CGRectIsEmpty(rect))
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macdrv_window_needs_display(surface->window, rect);
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}
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/***********************************************************************
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* macdrv_surface_destroy
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*/
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static void macdrv_surface_destroy(struct window_surface *window_surface)
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{
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struct macdrv_window_surface *surface = get_mac_surface(window_surface);
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TRACE("freeing %p bits %p\n", surface, surface->bits);
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HeapFree(GetProcessHeap(), 0, surface->bits);
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pthread_mutex_destroy(&surface->mutex);
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HeapFree(GetProcessHeap(), 0, surface);
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}
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static const struct window_surface_funcs macdrv_surface_funcs =
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{
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macdrv_surface_lock,
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macdrv_surface_unlock,
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macdrv_surface_get_bitmap_info,
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macdrv_surface_get_bounds,
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macdrv_surface_set_region,
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macdrv_surface_flush,
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macdrv_surface_destroy,
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};
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/***********************************************************************
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* create_surface
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*/
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struct window_surface *create_surface(macdrv_window window, const RECT *rect,
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struct window_surface *old_surface, BOOL use_alpha)
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{
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struct macdrv_window_surface *surface;
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struct macdrv_window_surface *old_mac_surface = get_mac_surface(old_surface);
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int width = rect->right - rect->left, height = rect->bottom - rect->top;
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DWORD *colors;
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pthread_mutexattr_t attr;
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int err;
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DWORD window_background;
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surface = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY,
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FIELD_OFFSET(struct macdrv_window_surface, info.bmiColors[3]));
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if (!surface) return NULL;
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err = pthread_mutexattr_init(&attr);
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if (!err)
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{
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err = pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_RECURSIVE);
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if (!err)
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err = pthread_mutex_init(&surface->mutex, &attr);
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pthread_mutexattr_destroy(&attr);
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}
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if (err)
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{
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HeapFree(GetProcessHeap(), 0, surface);
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return NULL;
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}
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surface->info.bmiHeader.biSize = sizeof(surface->info.bmiHeader);
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surface->info.bmiHeader.biWidth = width;
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surface->info.bmiHeader.biHeight = height; /* bottom-up */
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surface->info.bmiHeader.biPlanes = 1;
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surface->info.bmiHeader.biBitCount = 32;
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surface->info.bmiHeader.biSizeImage = get_dib_image_size(&surface->info);
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surface->info.bmiHeader.biCompression = BI_RGB;
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surface->info.bmiHeader.biClrUsed = 0;
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colors = (DWORD *)((char *)&surface->info + surface->info.bmiHeader.biSize);
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colors[0] = 0x00ff0000;
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colors[1] = 0x0000ff00;
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colors[2] = 0x000000ff;
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surface->header.funcs = &macdrv_surface_funcs;
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surface->header.rect = *rect;
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surface->header.ref = 1;
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surface->window = window;
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reset_bounds(&surface->bounds);
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if (old_mac_surface && old_mac_surface->drawn)
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{
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surface->drawn = CreateRectRgnIndirect(rect);
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OffsetRgn(surface->drawn, -rect->left, -rect->top);
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if (CombineRgn(surface->drawn, surface->drawn, old_mac_surface->drawn, RGN_AND) <= NULLREGION)
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{
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DeleteObject(surface->drawn);
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surface->drawn = 0;
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}
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}
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update_blit_data(surface);
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surface->use_alpha = use_alpha;
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surface->bits = HeapAlloc(GetProcessHeap(), 0, surface->info.bmiHeader.biSizeImage);
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if (!surface->bits) goto failed;
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window_background = macdrv_window_background_color();
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memset_pattern4(surface->bits, &window_background, surface->info.bmiHeader.biSizeImage);
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TRACE("created %p for %p %s bits %p-%p\n", surface, window, wine_dbgstr_rect(rect),
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surface->bits, surface->bits + surface->info.bmiHeader.biSizeImage);
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return &surface->header;
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failed:
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macdrv_surface_destroy(&surface->header);
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return NULL;
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}
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/***********************************************************************
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* set_surface_use_alpha
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*/
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void set_surface_use_alpha(struct window_surface *window_surface, BOOL use_alpha)
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{
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struct macdrv_window_surface *surface = get_mac_surface(window_surface);
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surface->use_alpha = use_alpha;
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}
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/***********************************************************************
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* set_window_surface
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*/
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void set_window_surface(macdrv_window window, struct window_surface *window_surface)
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{
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struct macdrv_window_surface *surface = get_mac_surface(window_surface);
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macdrv_set_window_surface(window, window_surface, surface ? &surface->mutex : NULL);
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}
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/***********************************************************************
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* get_surface_blit_rects
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*
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* Caller must hold the surface lock. Indirectly returns the surface
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* blit region rects. Returns zero if the surface has nothing to blit;
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* returns non-zero if the surface does have rects to blit (drawn area
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* which isn't clipped away by a surface region).
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*
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* IMPORTANT: This function is called from non-Wine threads, so it
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* must not use Win32 or Wine functions, including debug
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* logging.
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*/
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int get_surface_blit_rects(void *window_surface, const CGRect **rects, int *count)
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{
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struct macdrv_window_surface *surface = get_mac_surface(window_surface);
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if (surface->blit_data)
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{
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*rects = (const CGRect*)surface->blit_data->Buffer;
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*count = surface->blit_data->rdh.nCount;
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}
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else
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{
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*rects = NULL;
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*count = 0;
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}
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return (surface->blit_data != NULL);
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}
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/***********************************************************************
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* create_surface_image
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*
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* Caller must hold the surface lock. On input, *rect is the requested
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* image rect, relative to the window whole_rect, a.k.a. visible_rect.
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* On output, it's been intersected with that part backed by the surface
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* and is the actual size of the returned image. copy_data indicates if
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* the caller will keep the returned image beyond the point where the
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* surface bits can be guaranteed to remain valid and unchanged. If so,
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* the bits are copied instead of merely referenced by the image.
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*
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* IMPORTANT: This function is called from non-Wine threads, so it
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* must not use Win32 or Wine functions, including debug
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* logging.
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*/
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CGImageRef create_surface_image(void *window_surface, CGRect *rect, int copy_data)
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{
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CGImageRef cgimage = NULL;
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struct macdrv_window_surface *surface = get_mac_surface(window_surface);
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int width, height;
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width = surface->header.rect.right - surface->header.rect.left;
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height = surface->header.rect.bottom - surface->header.rect.top;
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*rect = CGRectIntersection(cgrect_from_rect(surface->header.rect), *rect);
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if (!CGRectIsEmpty(*rect))
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{
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CGRect visrect;
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CGColorSpaceRef colorspace;
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CGDataProviderRef provider;
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int bytes_per_row, offset, size;
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CGImageAlphaInfo alphaInfo;
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visrect = CGRectOffset(*rect, -surface->header.rect.left, -surface->header.rect.top);
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colorspace = CGColorSpaceCreateWithName(kCGColorSpaceGenericRGB);
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bytes_per_row = get_dib_stride(width, 32);
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offset = CGRectGetMinX(visrect) * 4 + (height - CGRectGetMaxY(visrect)) * bytes_per_row;
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size = min(CGRectGetHeight(visrect) * bytes_per_row,
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surface->info.bmiHeader.biSizeImage - offset);
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if (copy_data)
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{
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CFDataRef data = CFDataCreate(NULL, (UInt8*)surface->bits + offset, size);
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provider = CGDataProviderCreateWithCFData(data);
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CFRelease(data);
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}
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else
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provider = CGDataProviderCreateWithData(NULL, surface->bits + offset, size, NULL);
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alphaInfo = surface->use_alpha ? kCGImageAlphaPremultipliedFirst : kCGImageAlphaNoneSkipFirst;
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cgimage = CGImageCreate(CGRectGetWidth(visrect), CGRectGetHeight(visrect),
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8, 32, bytes_per_row, colorspace,
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alphaInfo | kCGBitmapByteOrder32Little,
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provider, NULL, FALSE, kCGRenderingIntentDefault);
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CGDataProviderRelease(provider);
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CGColorSpaceRelease(colorspace);
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}
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return cgimage;
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}
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/***********************************************************************
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* surface_clip_to_visible_rect
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*
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* Intersect the accumulated drawn region with a new visible rect,
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* effectively discarding stale drawing in the surface slack area.
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*/
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void surface_clip_to_visible_rect(struct window_surface *window_surface, const RECT *visible_rect)
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{
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struct macdrv_window_surface *surface = get_mac_surface(window_surface);
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window_surface->funcs->lock(window_surface);
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if (surface->drawn)
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{
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RECT rect;
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HRGN region;
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rect = *visible_rect;
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OffsetRect(&rect, -rect.left, -rect.top);
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if ((region = CreateRectRgnIndirect(&rect)))
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{
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CombineRgn(surface->drawn, surface->drawn, region, RGN_AND);
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DeleteObject(region);
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update_blit_data(surface);
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}
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}
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window_surface->funcs->unlock(window_surface);
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}
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