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/*
* Copyright (C) 2005-2013 Team XBMC
* http://xbmc.org
*
* 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 2, 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 XBMC; see the file COPYING. If not, see
* <http://www.gnu.org/licenses/>.
*
*/
#include "system.h"
#if HAS_GLES == 2
#include "GUIShader.h"
#include "MatrixGLES.h"
#include "utils/log.h"
using namespace Shaders;
CGUIShader::CGUIShader( const char *shader ) : CGLSLShaderProgram("guishader_vert.glsl", shader)
{
// Initialise values
m_hTex0 = 0;
m_hTex1 = 0;
m_hProj = 0;
m_hModel = 0;
m_hPos = 0;
m_hCol = 0;
m_hCord0 = 0;
m_hCord1 = 0;
m_hUniCol = 0;
m_hCoord0Matrix = 0;
m_proj = NULL;
m_model = NULL;
}
void CGUIShader::OnCompiledAndLinked()
{
// This is called after CompileAndLink()
// Variables passed directly to the Fragment shader
m_hTex0 = glGetUniformLocation(ProgramHandle(), "m_samp0");
m_hTex1 = glGetUniformLocation(ProgramHandle(), "m_samp1");
m_hUniCol = glGetUniformLocation(ProgramHandle(), "m_unicol");
// Variables passed directly to the Vertex shader
m_hProj = glGetUniformLocation(ProgramHandle(), "m_proj");
m_hModel = glGetUniformLocation(ProgramHandle(), "m_model");
m_hCoord0Matrix = glGetUniformLocation(ProgramHandle(), "m_coord0Matrix");
// Vertex attributes
m_hPos = glGetAttribLocation(ProgramHandle(), "m_attrpos");
m_hCol = glGetAttribLocation(ProgramHandle(), "m_attrcol");
m_hCord0 = glGetAttribLocation(ProgramHandle(), "m_attrcord0");
m_hCord1 = glGetAttribLocation(ProgramHandle(), "m_attrcord1");
// It's okay to do this only one time. Textures units never change.
glUseProgram( ProgramHandle() );
glUniform1i(m_hTex0, 0);
glUniform1i(m_hTex1, 1);
glUniform4f(m_hUniCol, 1.0, 1.0, 1.0, 1.0);
const float identity[16] = {
1.0f, 0.0f, 0.0f, 0.0f,
0.0f, 1.0f, 0.0f, 0.0f,
0.0f, 0.0f, 1.0f, 0.0f,
0.0f, 0.0f, 0.0f, 1.0f
};
glUniformMatrix4fv(m_hCoord0Matrix, 1, GL_FALSE, identity);
glUseProgram( 0 );
}
bool CGUIShader::OnEnabled()
{
// This is called after glUseProgram()
glUniformMatrix4fv(m_hProj, 1, GL_FALSE, g_matrices.GetMatrix(MM_PROJECTION));
glUniformMatrix4fv(m_hModel, 1, GL_FALSE, g_matrices.GetMatrix(MM_MODELVIEW));
return true;
}
void CGUIShader::Free()
{
// Do Cleanup here
CGLSLShaderProgram::Free();
}
#endif
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