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