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b0e4be7fda
Depth of a rendernode should be determined by the textures used and the compositing colorstate requirements. Colors influence the colorstate choice, so they indirectly influence the depth, but they should not influence the depth directly. Otherwise a single color in a border being rec2100-pq would make us switch to 16bit float. Also remove gdk_color_get_depth(), because it was only used here and because again: Colors should not influence depth decisions.
107 lines
4.2 KiB
C
107 lines
4.2 KiB
C
/* GDK - The GIMP Drawing Kit
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*
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* Copyright (C) 2021 Benjamin Otte
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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 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, see <http://www.gnu.org/licenses/>.
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*/
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#pragma once
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#include <gdk/gdktypes.h>
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#include <gdk/gdkcolorstate.h>
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#include <gdk/gdkrgba.h>
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#include <gdk/gdkmemoryformatprivate.h>
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typedef struct _GdkColor GdkColor;
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/* The interpretation of the first 3 components depends on the color state.
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* values[3] is always alpha.
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*/
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struct _GdkColor
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{
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GdkColorState *color_state;
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union {
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float values[4];
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struct {
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float r;
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float g;
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float b;
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float a;
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};
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struct {
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float red;
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float green;
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float blue;
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float alpha;
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};
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};
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};
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G_STATIC_ASSERT (G_STRUCT_OFFSET (GdkColor, r) == G_STRUCT_OFFSET (GdkColor, red));
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G_STATIC_ASSERT (G_STRUCT_OFFSET (GdkColor, g) == G_STRUCT_OFFSET (GdkColor, green));
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G_STATIC_ASSERT (G_STRUCT_OFFSET (GdkColor, b) == G_STRUCT_OFFSET (GdkColor, blue));
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G_STATIC_ASSERT (G_STRUCT_OFFSET (GdkColor, a) == G_STRUCT_OFFSET (GdkColor, alpha));
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/* The committee notes that since all known implementations but one "get it right"
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* this may well not be a defect at all.
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* https://open-std.org/JTC1/SC22/WG14/www/docs/n2396.htm#dr_496
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*/
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#ifndef _MSC_VER
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G_STATIC_ASSERT (G_STRUCT_OFFSET (GdkColor, r) == G_STRUCT_OFFSET (GdkColor, values[0]));
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G_STATIC_ASSERT (G_STRUCT_OFFSET (GdkColor, g) == G_STRUCT_OFFSET (GdkColor, values[1]));
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G_STATIC_ASSERT (G_STRUCT_OFFSET (GdkColor, b) == G_STRUCT_OFFSET (GdkColor, values[2]));
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G_STATIC_ASSERT (G_STRUCT_OFFSET (GdkColor, a) == G_STRUCT_OFFSET (GdkColor, values[3]));
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#endif
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#define GDK_COLOR_SRGB(r,g,b,a) (GdkColor) { \
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.color_state = GDK_COLOR_STATE_SRGB, \
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.values = { (r), (g), (b), (a) } \
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}
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void gdk_color_init (GdkColor *self,
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GdkColorState *color_state,
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const float values[4]);
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void gdk_color_init_copy (GdkColor *self,
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const GdkColor *color);
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void gdk_color_init_from_rgba (GdkColor *self,
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const GdkRGBA *rgba);
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void gdk_color_finish (GdkColor *self);
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gboolean gdk_color_equal (const GdkColor *color1,
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const GdkColor *color2);
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gboolean gdk_color_is_clear (const GdkColor *self);
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gboolean gdk_color_is_opaque (const GdkColor *self);
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void gdk_color_convert (GdkColor *self,
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GdkColorState *color_state,
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const GdkColor *other);
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void gdk_color_to_float (const GdkColor *self,
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GdkColorState *target,
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float values[4]);
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void gdk_color_from_rgba (GdkColor *self,
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GdkColorState *color_state,
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const GdkRGBA *rgba);
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void gdk_color_print (const GdkColor *self,
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GString *string);
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char * gdk_color_to_string (const GdkColor *self);
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#include "gdkcolorimpl.h"
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G_END_DECLS
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