52 lines
1.6 KiB
C++
52 lines
1.6 KiB
C++
/* ScummVM - Graphic Adventure Engine
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*
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* ScummVM is the legal property of its developers, whose names
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* are too numerous to list here. Please refer to the COPYRIGHT
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* file distributed with this source distribution.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program 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
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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#include "ags/engine/gfx/blender.h"
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#include "ags/lib/allegro.h"
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#include "ags/shared/core/types.h"
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namespace AGS3 {
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void set_my_trans_blender(int r, int g, int b, int a) {
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// use standard allegro 15 and 16 bit blenders, but customize
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// the 32-bit one to preserve the alpha channel
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set_blender_mode(kAlphaPreservedBlenderMode, r, g, b, a);
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}
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void set_additive_alpha_blender() {
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set_blender_mode(kAdditiveBlenderMode, 0, 0, 0, 0);
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}
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void set_argb2argb_blender(int alpha) {
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set_blender_mode(kArgbToArgbBlender, 0, 0, 0, alpha);
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}
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void set_opaque_alpha_blender() {
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set_blender_mode(kOpaqueBlenderMode, 0, 0, 0, 0);
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}
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void set_argb2any_blender() {
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// TODO: Properly implement this new mode
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set_blender_mode(kArgbToArgbBlender, 0, 0, 0, 0xff);
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}
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} // namespace AGS3
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