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59 lines
2.0 KiB
C++
59 lines
2.0 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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/*
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* This file is based on, or a modified version of code from TinyGL (C) 1997-2022 Fabrice Bellard,
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* which is licensed under the MIT license (see LICENSE).
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* It also has modifications by the ResidualVM-team, which are covered under the GPLv2 (or later).
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*/
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#include "graphics/tinygl/zgl.h"
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#include "graphics/tinygl/zdirtyrect.h"
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namespace TinyGL {
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void GLContext::glopClearColor(GLParam *p) {
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clear_color = Vector4(p[1].f, p[2].f, p[3].f, p[4].f);
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}
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void GLContext::glopClearDepth(GLParam *p) {
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clear_depth = p[1].f;
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}
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void GLContext::glopClearStencil(GLParam *p) {
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clear_stencil = p[1].i & 0xFF;
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}
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void GLContext::glopClear(GLParam *p) {
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int mask = p[1].i;
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int z = (int)(clear_depth * ((1 << ZB_Z_BITS) - 1));
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int r = (int)(clear_color.X * 255);
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int g = (int)(clear_color.Y * 255);
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int b = (int)(clear_color.Z * 255);
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int s = (int)(clear_stencil);
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issueDrawCall(new ClearBufferDrawCall(mask & TGL_DEPTH_BUFFER_BIT, z,
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mask & TGL_COLOR_BUFFER_BIT, r, g, b,
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mask & TGL_STENCIL_BUFFER_BIT, s));
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}
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} // end of namespace TinyGL
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