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141 lines
4.6 KiB
141 lines
4.6 KiB
/*
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* Copyright (c) 2010-2012 OTClient <https://github.com/edubart/otclient>
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include "paintershaderprogram.h"
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#include "painter.h"
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#include "texture.h"
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#include "texturemanager.h"
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#include <framework/core/clock.h>
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PainterShaderProgram::PainterShaderProgram()
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{
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m_textures.fill(std::make_tuple(-1, 0));
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m_startTime = g_clock.time();
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}
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bool PainterShaderProgram::link()
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{
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bindAttributeLocation(VERTEX_COORDS_ATTR, "vertexCoord");
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bindAttributeLocation(TEXTURE_COORDS_ATTR, "textureCoord");
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if(ShaderProgram::link()) {
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bindUniformLocation(PROJECTION_MATRIX_UNIFORM, "projectionMatrix");
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bindUniformLocation(TEXTURE_TRANSFORM_MATRIX_UNIFORM, "textureTransformMatrix");
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bindUniformLocation(COLOR_UNIFORM, "color");
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bindUniformLocation(OPACITY_UNIFORM, "opacity");
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bindUniformLocation(TEXTURE_UNIFORM, "texture");
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bindUniformLocation(TIME_UNIFORM, "time");
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return true;
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}
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m_startTime = g_clock.time();
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return false;
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}
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void PainterShaderProgram::setProjectionMatrix(const Matrix3& projectionMatrix)
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{
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bind();
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setUniformValue(PROJECTION_MATRIX_UNIFORM, projectionMatrix);
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}
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void PainterShaderProgram::setColor(const Color& color)
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{
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bind();
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setUniformValue(COLOR_UNIFORM, color);
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}
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void PainterShaderProgram::setOpacity(float opacity)
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{
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bind();
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setUniformValue(OPACITY_UNIFORM, opacity);
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}
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void PainterShaderProgram::setUniformTexture(int location, const TexturePtr& texture, int index)
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{
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assert(index >= 0 && index <= 1);
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m_textures[index] = std::make_tuple(location, texture ? texture->getId() : 0);
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}
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void PainterShaderProgram::setTexture(const TexturePtr& texture)
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{
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if(!texture)
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return;
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float w = texture->getWidth();
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float h = texture->getHeight();
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Matrix2 textureTransformMatrix = { 1.0f/w, 0.0f,
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0.0f, 1.0f/h };
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textureTransformMatrix.transpose();
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bind();
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setUniformTexture(TEXTURE_UNIFORM, texture, 0);
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setUniformValue(TEXTURE_TRANSFORM_MATRIX_UNIFORM, textureTransformMatrix);
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}
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void PainterShaderProgram::draw(const CoordsBuffer& coordsBuffer, DrawMode drawMode)
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{
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bind();
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setUniformValue(TIME_UNIFORM, g_clock.timeElapsed(m_startTime));
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int numVertices = coordsBuffer.getVertexCount();
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if(numVertices == 0)
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return;
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bool mustDisableVertexArray = false;
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if(coordsBuffer.getVertexCount() > 0) {
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enableAttributeArray(PainterShaderProgram::VERTEX_COORDS_ATTR);
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setAttributeArray(PainterShaderProgram::VERTEX_COORDS_ATTR, coordsBuffer.getVertices(), 2);
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mustDisableVertexArray = true;
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}
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bool mustDisableTexCoordsArray = false;
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if(coordsBuffer.getTextureCoordsCount() > 0) {
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enableAttributeArray(PainterShaderProgram::TEXTURE_COORDS_ATTR);
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setAttributeArray(PainterShaderProgram::TEXTURE_COORDS_ATTR, coordsBuffer.getTextureCoords(), 2);
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mustDisableTexCoordsArray = true;
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}
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for(int i=0;i<(int)m_textures.size();++i) {
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int location = std::get<0>(m_textures[i]);
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if(location == -1)
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break;
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int id = std::get<1>(m_textures[i]);
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setUniformValue(location, i);
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glActiveTexture(GL_TEXTURE0+i);
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glBindTexture(GL_TEXTURE_2D, id);
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}
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glActiveTexture(GL_TEXTURE0);
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glDrawArrays(drawMode, 0, numVertices);
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if(mustDisableVertexArray)
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disableAttributeArray(PainterShaderProgram::VERTEX_COORDS_ATTR);
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if(mustDisableTexCoordsArray)
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disableAttributeArray(PainterShaderProgram::TEXTURE_COORDS_ATTR);
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//release();
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}
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