From: Rémi Bernon rbernon@codeweavers.com
--- dlls/win32u/dce.c | 169 ++++++++++++++++++++++++++++++++++- dlls/win32u/win32u_private.h | 3 +- dlls/win32u/window.c | 4 +- 3 files changed, 171 insertions(+), 5 deletions(-)
diff --git a/dlls/win32u/dce.c b/dlls/win32u/dce.c index 8bad1949ebd..3b8bc699017 100644 --- a/dlls/win32u/dce.c +++ b/dlls/win32u/dce.c @@ -138,18 +138,183 @@ static void create_offscreen_window_surface( HWND hwnd, const RECT *surface_rect *window_surface = window_surface_create( sizeof(*surface), &offscreen_window_surface_funcs, hwnd, surface_rect, info, 0 ); }
-void create_window_surface( HWND hwnd, BOOL create_layered, const RECT *surface_rect, +struct scaled_surface +{ + struct window_surface header; + struct window_surface *target_surface; + UINT dpi_from; + UINT dpi_to; +}; + +static struct scaled_surface *get_scaled_surface( struct window_surface *window_surface ) +{ + return CONTAINING_RECORD( window_surface, struct scaled_surface, header ); +} + +static void scaled_surface_set_clip( struct window_surface *window_surface, const RECT *rects, UINT count ) +{ + struct scaled_surface *surface = get_scaled_surface( window_surface ); + HRGN hrgn = map_dpi_region( window_surface->clip_region, surface->dpi_from, surface->dpi_to ); + window_surface_set_clip( surface->target_surface, hrgn ); + if (hrgn) NtGdiDeleteObjectApp( hrgn ); +} + +static BOOL scaled_surface_flush( struct window_surface *window_surface, const RECT *rect, const RECT *dirty, + const BITMAPINFO *color_info, const void *color_bits, BOOL shape_changed, + const BITMAPINFO *shape_info, const void *shape_bits ) +{ + struct scaled_surface *surface = get_scaled_surface( window_surface ); + RECT src = *dirty, dst; + HDC hdc_dst, hdc_src; + + src.left &= ~7; + src.top &= ~7; + src.right = (src.right + 7) & ~7; + src.bottom = (src.bottom + 7) & ~7; + + dst = map_dpi_rect( src, surface->dpi_from, surface->dpi_to ); + + hdc_dst = NtGdiCreateCompatibleDC( 0 ); + hdc_src = NtGdiCreateCompatibleDC( 0 ); + + NtGdiSelectBitmap( hdc_src, window_surface->color_bitmap ); + NtGdiSelectBitmap( hdc_dst, surface->target_surface->color_bitmap ); + + /* FIXME: implement HALFTONE with alpha for layered surfaces */ + if (!window_surface->alpha_mask) set_stretch_blt_mode( hdc_dst, STRETCH_HALFTONE ); + + NtGdiStretchBlt( hdc_dst, dst.left, dst.top, dst.right - dst.left, dst.bottom - dst.top, + hdc_src, src.left, src.top, src.right - src.left, src.bottom - src.top, + SRCCOPY, 0 ); + + NtGdiDeleteObjectApp( hdc_dst ); + NtGdiDeleteObjectApp( hdc_src ); + + window_surface_lock( surface->target_surface ); + add_bounds_rect( &surface->target_surface->bounds, &dst ); + window_surface_unlock( surface->target_surface ); + + if (shape_changed) + { + HRGN hrgn = map_dpi_region( window_surface->shape_region, surface->dpi_from, surface->dpi_to ); + window_surface_set_shape( surface->target_surface, hrgn ); + if (hrgn) NtGdiDeleteObjectApp( hrgn ); + + window_surface_set_layered( surface->target_surface, window_surface->color_key, + window_surface->alpha_bits, window_surface->alpha_mask ); + } + + window_surface_flush( surface->target_surface ); + return TRUE; +} + +static void scaled_surface_destroy( struct window_surface *window_surface ) +{ + struct scaled_surface *surface = get_scaled_surface( window_surface ); + window_surface_release( surface->target_surface ); +} + +static const struct window_surface_funcs scaled_surface_funcs = +{ + scaled_surface_set_clip, + scaled_surface_flush, + scaled_surface_destroy +}; + +static void scaled_surface_set_target( struct scaled_surface *surface, struct window_surface *target, UINT dpi_to ) +{ + if (surface->target_surface) window_surface_release( surface->target_surface ); + window_surface_add_ref( (surface->target_surface = target) ); + surface->dpi_to = dpi_to; +} + +static struct window_surface *scaled_surface_create( HWND hwnd, const RECT *surface_rect, UINT dpi_from, UINT dpi_to, + struct window_surface *target_surface ) +{ + char buffer[FIELD_OFFSET( BITMAPINFO, bmiColors[256] )]; + BITMAPINFO *info = (BITMAPINFO *)buffer; + struct window_surface *window_surface; + struct scaled_surface *surface; + + memset( info, 0, sizeof(*info) ); + info->bmiHeader.biSize = sizeof(info->bmiHeader); + info->bmiHeader.biWidth = surface_rect->right; + info->bmiHeader.biHeight = -surface_rect->bottom; /* top-down */ + info->bmiHeader.biPlanes = 1; + info->bmiHeader.biBitCount = 32; + info->bmiHeader.biSizeImage = get_dib_image_size( info ); + info->bmiHeader.biCompression = BI_RGB; + + if ((window_surface = window_surface_create( sizeof(*surface), &scaled_surface_funcs, hwnd, surface_rect, info, 0 ))) + { + surface = get_scaled_surface( window_surface ); + surface->dpi_from = dpi_from; + scaled_surface_set_target( surface, target_surface, dpi_to ); + } + + return window_surface; +} + +static RECT get_surface_rect( RECT rect ) +{ + OffsetRect( &rect, -rect.left, -rect.top ); + + rect.left &= ~127; + rect.top &= ~127; + rect.right = max( rect.left + 128, (rect.right + 127) & ~127 ); + rect.bottom = max( rect.top + 128, (rect.bottom + 127) & ~127 ); + + return rect; +} + +void create_window_surface( HWND hwnd, BOOL create_layered, const RECT *surface_rect, UINT monitor_dpi, struct window_surface **window_surface ) { - if (!user_driver->pCreateWindowSurface( hwnd, create_layered, surface_rect, window_surface )) + struct window_surface *previous, *driver_surface; + UINT dpi = get_dpi_for_window( hwnd ); + RECT monitor_rect; + + if ((driver_surface = get_driver_window_surface( *window_surface, monitor_dpi ))) + window_surface_add_ref( driver_surface ); + + monitor_rect = get_surface_rect( map_dpi_rect( *surface_rect, dpi, monitor_dpi ) ); + if (!user_driver->pCreateWindowSurface( hwnd, create_layered, &monitor_rect, &driver_surface )) { + if (driver_surface) window_surface_release( driver_surface ); if (*window_surface) { window_surface_release( *window_surface ); /* create an offscreen window surface if the driver doesn't implement CreateWindowSurface */ create_offscreen_window_surface( hwnd, surface_rect, window_surface ); } + return; } + + if (!driver_surface || dpi == monitor_dpi) + { + if (*window_surface) window_surface_release( *window_surface ); + *window_surface = driver_surface; + return; + } + + /* reuse previous scaling surface, update its target to the driver surface */ + if ((previous = *window_surface) && previous->funcs == &scaled_surface_funcs) + { + struct scaled_surface *surface = get_scaled_surface( previous ); + scaled_surface_set_target( surface, driver_surface, monitor_dpi ); + return; + } + if (previous) window_surface_release( previous ); + + *window_surface = scaled_surface_create( hwnd, surface_rect, dpi, monitor_dpi, driver_surface ); +} + +struct window_surface *get_driver_window_surface( struct window_surface *surface, UINT monitor_dpi ) +{ + if (!surface || surface == &dummy_surface) return surface; + if (surface->funcs != &scaled_surface_funcs) return surface; + if (get_scaled_surface( surface )->dpi_to != monitor_dpi) return &dummy_surface; + return get_scaled_surface( surface )->target_surface; }
/* window surface common helpers */ diff --git a/dlls/win32u/win32u_private.h b/dlls/win32u/win32u_private.h index 6b7734d2af5..f7d869d1feb 100644 --- a/dlls/win32u/win32u_private.h +++ b/dlls/win32u/win32u_private.h @@ -45,8 +45,9 @@ extern ULONG_PTR set_icon_param( HICON handle, const struct free_icon_params *pa
/* dce.c */ extern struct window_surface dummy_surface; -extern void create_window_surface( HWND hwnd, BOOL create_layered, const RECT *surface_rect, +extern void create_window_surface( HWND hwnd, BOOL create_layered, const RECT *surface_rect, UINT monitor_dpi, struct window_surface **window_surface ); +extern struct window_surface *get_driver_window_surface( struct window_surface *surface, UINT monitor_dpi ); extern void erase_now( HWND hwnd, UINT rdw_flags ); extern void flush_window_surfaces( BOOL idle ); extern void move_window_bits( HWND hwnd, const RECT *visible_rect, const RECT *old_visible_rect, diff --git a/dlls/win32u/window.c b/dlls/win32u/window.c index 2aed22350e7..05a353ae53a 100644 --- a/dlls/win32u/window.c +++ b/dlls/win32u/window.c @@ -1940,7 +1940,7 @@ static struct window_surface *get_window_surface( HWND hwnd, UINT swp_flags, BOO else if (create_layered || is_layered) needs_surface = TRUE;
if (needs_surface) - create_window_surface( hwnd, create_layered, surface_rect, &new_surface ); + create_window_surface( hwnd, create_layered, surface_rect, monitor_dpi, &new_surface ); else if (new_surface && new_surface != &dummy_surface) { window_surface_release( new_surface ); @@ -2107,7 +2107,7 @@ static BOOL apply_window_pos( HWND hwnd, HWND insert_after, UINT swp_flags, stru } }
- user_driver->pWindowPosChanged( hwnd, insert_after, swp_flags, &monitor_rects, new_surface ); + user_driver->pWindowPosChanged( hwnd, insert_after, swp_flags, &monitor_rects, get_driver_window_surface( new_surface, monitor_dpi ) ); }
return ret;