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Diffstat (limited to 'gdk/directfb/gdkvisual-directfb.c')
| -rw-r--r-- | gdk/directfb/gdkvisual-directfb.c | 493 |
1 files changed, 0 insertions, 493 deletions
diff --git a/gdk/directfb/gdkvisual-directfb.c b/gdk/directfb/gdkvisual-directfb.c deleted file mode 100644 index fcbb1c30b9..0000000000 --- a/gdk/directfb/gdkvisual-directfb.c +++ /dev/null @@ -1,493 +0,0 @@ -/* GDK - The GIMP Drawing Kit - * Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald - * - * This library is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License as published by the Free Software Foundation; either - * version 2 of the License, or (at your option) any later version. - * - * This library is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with this library; if not, write to the - * Free Software Foundation, Inc., 59 Temple Place - Suite 330, - * Boston, MA 02111-1307, USA. - */ - -/* - * Modified by the GTK+ Team and others 1997-2000. See the AUTHORS - * file for a list of people on the GTK+ Team. - */ - -/* - * GTK+ DirectFB backend - * Copyright (C) 2001-2002 convergence integrated media GmbH - * Copyright (C) 2002-2004 convergence GmbH - * Written by Denis Oliver Kropp <dok@convergence.de> and - * Sven Neumann <sven@convergence.de> - */ - -#include "config.h" - -#include "gdkdirectfb.h" -#include "gdkprivate-directfb.h" - -#include "gdkscreen.h" -#include "gdkvisual.h" - - -struct _GdkVisualClass -{ - GObjectClass parent_class; -}; - - -static void gdk_visual_decompose_mask (gulong mask, - gint *shift, - gint *prec); -static GdkVisualDirectFB * gdk_directfb_visual_create (DFBSurfacePixelFormat pixelformat); - - -static DFBSurfacePixelFormat formats[] = -{ - DSPF_ARGB, - DSPF_LUT8, - DSPF_RGB32, - DSPF_RGB24, - DSPF_RGB16, - DSPF_ARGB1555, - DSPF_RGB332 -}; - -GdkVisual * system_visual = NULL; -static GdkVisualDirectFB * visuals[G_N_ELEMENTS (formats) + 1] = { NULL }; -static gint available_depths[G_N_ELEMENTS (formats) + 1] = {0}; -static GdkVisualType available_types[G_N_ELEMENTS (formats) + 1] = {0}; - - -static void -gdk_visual_finalize (GObject *object) -{ - g_error ("A GdkVisual object was finalized. This should not happen"); -} - -static void -gdk_visual_class_init (GObjectClass *class) -{ - class->finalize = gdk_visual_finalize; -} - -GType -gdk_visual_get_type (void) -{ - static GType object_type = 0; - - if (!object_type) - { - const GTypeInfo object_info = - { - sizeof (GdkVisualClass), - (GBaseInitFunc) NULL, - (GBaseFinalizeFunc) NULL, - (GClassInitFunc) gdk_visual_class_init, - NULL, /* class_finalize */ - NULL, /* class_data */ - sizeof (GdkVisualDirectFB), - 0, /* n_preallocs */ - (GInstanceInitFunc) NULL, - }; - - object_type = g_type_register_static (G_TYPE_OBJECT, - "GdkVisual", - &object_info, 0); - } - - return object_type; -} - -void -_gdk_visual_init () -{ - DFBDisplayLayerConfig dlc; - DFBSurfaceDescription desc; - IDirectFBSurface *dest; - gint i, c; - - - _gdk_display->layer->GetConfiguration (_gdk_display->layer, &dlc); - g_assert( dlc.pixelformat != DSPF_UNKNOWN); - - dest = gdk_display_dfb_create_surface(_gdk_display,dlc.pixelformat,8,8); - g_assert (dest != NULL); - - /* We could provide all visuals since DirectFB allows us to mix - surface formats. Blitting with format conversion can however - be incredibly slow, so we've choosen to register only those - visuals that can be blitted to the display layer in hardware. - - If you want to use a special pixelformat that is not registered - here, you can create it using the DirectFB-specific function - gdk_directfb_visual_by_format(). - Note: - changed to do all formats but we should redo this code - to ensure the base format ARGB LUT8 RGB etc then add ones supported - by the hardware - */ - for (i = 0; i < G_N_ELEMENTS (formats); i++) - { - IDirectFBSurface *src; - DFBAccelerationMask acc; - - desc.flags = DSDESC_WIDTH | DSDESC_HEIGHT | DSDESC_PIXELFORMAT; - desc.width = 8; - desc.height = 8; - desc.pixelformat = formats[i]; - //call direct so fail silently is ok - if (_gdk_display->directfb->CreateSurface (_gdk_display->directfb, - &desc, &src) != DFB_OK) - continue; - - visuals[i] = gdk_directfb_visual_create (formats[i]); - - dest->GetAccelerationMask (dest, src, &acc); - - if (acc & DFXL_BLIT || formats[i] == dlc.pixelformat) - { - system_visual = GDK_VISUAL (visuals[i]); - } - - src->Release (src); - } - - dest->Release (dest); - - //fallback to ARGB must be supported - if (!system_visual) - { - g_assert (visuals[DSPF_ARGB] != NULL); - system_visual = GDK_VISUAL(visuals[DSPF_ARGB]); - } - - g_assert (system_visual != NULL); -} - -gint -gdk_visual_get_best_depth (void) -{ - return system_visual->depth; -} - -GdkVisualType -gdk_visual_get_best_type (void) -{ - return system_visual->type; -} - -GdkVisual* -gdk_screen_get_system_visual (GdkScreen *screen) -{ - g_assert( system_visual); - return system_visual; -} - -GdkVisual* -gdk_visual_get_best (void) -{ - return system_visual; -} - -GdkVisual* -gdk_visual_get_best_with_depth (gint depth) -{ - gint i; - - for (i = 0; visuals[i]; i++) - { - if( visuals[i] ) { - GdkVisual *visual = GDK_VISUAL (visuals[i]); - - if (depth == visual->depth) - return visual; - } - } - - return NULL; -} - -GdkVisual* -gdk_visual_get_best_with_type (GdkVisualType visual_type) -{ - gint i; - - for (i = 0; visuals[i]; i++) - { - if( visuals[i] ) { - GdkVisual *visual = GDK_VISUAL (visuals[i]); - - if (visual_type == visual->type) - return visual; - } - } - - return NULL; -} - -GdkVisual* -gdk_visual_get_best_with_both (gint depth, - GdkVisualType visual_type) -{ - gint i; - - for (i = 0; visuals[i]; i++) - { - if( visuals[i] ) { - GdkVisual *visual = GDK_VISUAL (visuals[i]); - - if (depth == visual->depth && visual_type == visual->type) - return visual; - } - } - - return system_visual; -} - -void -gdk_query_depths (gint **depths, - gint *count) -{ - gint i; - - for (i = 0; available_depths[i]; i++) - ; - - *count = i; - *depths = available_depths; -} - -void -gdk_query_visual_types (GdkVisualType **visual_types, - gint *count) -{ - gint i; - - for (i = 0; available_types[i]; i++) - ; - - *count = i; - *visual_types = available_types; -} - -GList * -gdk_screen_list_visuals (GdkScreen *screen) -{ - GList *list = NULL; - gint i; - - for (i = 0; visuals[i]; i++) - if( visuals[i] ) { - GdkVisual * vis = GDK_VISUAL(visuals[i]); - list = g_list_append (list,vis); - } - - return list; -} - -/** - * gdk_directfb_visual_by_format: - * @pixel_format: the pixel_format of the requested visual - * - * This function is specific to the DirectFB backend. It allows - * to specify a GdkVisual by @pixel_format. - * - * At startup, only those visuals that can be blitted - * hardware-accelerated are registered. By using - * gdk_directfb_visual_by_format() you can retrieve visuals that - * don't match this criteria since this function will try to create - * a new visual for the desired @pixel_format for you. - * - * Return value: a pointer to the GdkVisual or %NULL if the - * pixel_format is unsupported. - **/ -GdkVisual * -gdk_directfb_visual_by_format (DFBSurfacePixelFormat pixel_format) -{ - gint i; - - /* first check if one the registered visuals matches */ - for (i = 0; visuals[i]; i++) - if ( visuals[i] && visuals[i]->format == pixel_format) - return GDK_VISUAL (visuals[i]); - - /* none matched, try to create a new one for this pixel_format */ - { - DFBSurfaceDescription desc; - IDirectFBSurface *test; - - desc.flags = DSDESC_WIDTH | DSDESC_HEIGHT | DSDESC_PIXELFORMAT; - desc.width = 8; - desc.height = 8; - desc.pixelformat = pixel_format; - - if ( _gdk_display->directfb->CreateSurface ( _gdk_display->directfb, &desc, &test) != DFB_OK) - return NULL; - - test->Release (test); - } - - return GDK_VISUAL(gdk_directfb_visual_create (pixel_format)); -} - -GdkScreen * -gdk_visual_get_screen (GdkVisual *visual) -{ - g_return_val_if_fail (GDK_IS_VISUAL (visual), NULL); - - return gdk_screen_get_default (); -} - -static void -gdk_visual_decompose_mask (gulong mask, - gint *shift, - gint *prec) -{ - *shift = 0; - *prec = 0; - - while (!(mask & 0x1)) - { - (*shift)++; - mask >>= 1; - } - - while (mask & 0x1) - { - (*prec)++; - mask >>= 1; - } -} - -static GdkVisualDirectFB * -gdk_directfb_visual_create (DFBSurfacePixelFormat pixelformat) -{ - GdkVisual *visual; - gint i; - - for (i = 0; i < G_N_ELEMENTS (formats); i++) - if (formats[i] == pixelformat) - break; - - if (i == G_N_ELEMENTS (formats)) - { - g_warning ("unsupported pixelformat"); - return NULL; - } - - visual = g_object_new (GDK_TYPE_VISUAL, NULL); - - switch (pixelformat) - { - case DSPF_LUT8: - visual->type = GDK_VISUAL_PSEUDO_COLOR; - visual->bits_per_rgb = 8; - break; - - case DSPF_RGB332: - visual->type = GDK_VISUAL_STATIC_COLOR; - visual->bits_per_rgb = 3; - break; - - case DSPF_ARGB1555: - visual->type = GDK_VISUAL_TRUE_COLOR; - visual->red_mask = 0x00007C00; - visual->green_mask = 0x000003E0; - visual->blue_mask = 0x0000001F; - visual->bits_per_rgb = 5; - break; - - case DSPF_RGB16: - visual->type = GDK_VISUAL_TRUE_COLOR; - visual->red_mask = 0x0000F800; - visual->green_mask = 0x000007E0; - visual->blue_mask = 0x0000001F; - visual->bits_per_rgb = 6; - break; - - case DSPF_RGB24: - case DSPF_RGB32: - case DSPF_ARGB: - visual->type = GDK_VISUAL_TRUE_COLOR; - visual->red_mask = 0x00FF0000; - visual->green_mask = 0x0000FF00; - visual->blue_mask = 0x000000FF; - visual->bits_per_rgb = 8; - break; - - default: - g_assert_not_reached (); - } - -#if G_BYTE_ORDER == G_BIG_ENDIAN - visual->byte_order = GDK_MSB_FIRST; -#else - visual->byte_order = GDK_LSB_FIRST; -#endif - - visual->depth = DFB_BITS_PER_PIXEL (pixelformat); - - switch (visual->type) - { - case GDK_VISUAL_TRUE_COLOR: - gdk_visual_decompose_mask (visual->red_mask, - &visual->red_shift, &visual->red_prec); - gdk_visual_decompose_mask (visual->green_mask, - &visual->green_shift, &visual->green_prec); - gdk_visual_decompose_mask (visual->blue_mask, - &visual->blue_shift, &visual->blue_prec); - - /* the number of possible levels per color component */ - visual->colormap_size = 1 << MAX (visual->red_prec, - MAX (visual->green_prec, - visual->blue_prec)); - break; - - case GDK_VISUAL_STATIC_COLOR: - case GDK_VISUAL_PSEUDO_COLOR: - visual->colormap_size = 1 << visual->depth; - - visual->red_mask = 0; - visual->red_shift = 0; - visual->red_prec = 0; - - visual->green_mask = 0; - visual->green_shift = 0; - visual->green_prec = 0; - - visual->blue_mask = 0; - visual->blue_shift = 0; - visual->blue_prec = 0; - - break; - - default: - g_assert_not_reached (); - } - - ((GdkVisualDirectFB *)visual)->format = pixelformat; - - for (i = 0; available_depths[i]; i++) - if (available_depths[i] == visual->depth) - break; - if (!available_depths[i]) - available_depths[i] = visual->depth; - - for (i = 0; available_types[i]; i++) - if (available_types[i] == visual->type) - break; - if (!available_types[i]) - available_types[i] = visual->type; - - return (GdkVisualDirectFB *) visual; -} |