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/*
* Copyright © 2012 Linaro Limited
*
* This file is part of the glmark2 OpenGL (ES) 2.0 benchmark.
*
* glmark2 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.
*
* glmark2 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
* glmark2. If not, see <http://www.gnu.org/licenses/>.
*
* Authors:
* Alexandros Frantzis
*/
#include "scene.h"
#include "renderer.h"
#include "shader-source.h"
LibMatrix::vec2 SimplexNoiseRenderer::uv_scale_(1.5f, 1.5);
SimplexNoiseRenderer::SimplexNoiseRenderer(const LibMatrix::vec2 &size) :
TextureRenderer(size, *noise_program(true))
{
noise_program_ = noise_program(false);
}
Program *
SimplexNoiseRenderer::noise_program(bool create_new)
{
static Program *noise_program(0);
if (create_new)
noise_program = 0;
if (!noise_program) {
noise_program = new Program();
ShaderSource vtx_shader(GLMARK_DATA_PATH"/shaders/terrain-texture.vert");
ShaderSource frg_shader(GLMARK_DATA_PATH"/shaders/terrain-noise.frag");
Scene::load_shaders_from_strings(*noise_program, vtx_shader.str(), frg_shader.str());
noise_program->start();
(*noise_program)["time"] = 1.0f;
(*noise_program)["uvOffset"] = LibMatrix::vec2(0.0f, 0.0f);
(*noise_program)["uvScale"] = uv_scale_;
noise_program->stop();
}
return noise_program;
}
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