mirror of
https://github.com/thorvg/thorvg.git
synced 2025-07-26 16:16:46 +00:00
b77f3ca024
Support the bindings to be more integrable with a system's coherent memory management. Pleaes note that thorvg now only allow the desinated memory allocators here: malloc -> tvg::malloc calloc -> tvg::calloc realloc -> tvg::realloc free -> tvg::free issue: https://github.com/thorvg/thorvg/issues/2652
106 lines
No EOL
3.3 KiB
C++
106 lines
No EOL
3.3 KiB
C++
/*
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* Copyright (c) 2020 - 2025 the ThorVG project. All rights reserved.
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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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* The above copyright notice and this permission notice shall be included in all
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* copies or substantial portions of the Software.
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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 THE
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* SOFTWARE.
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*/
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#include "tvgGlShader.h"
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/************************************************************************/
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/* Internal Class Implementation */
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/************************************************************************/
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uint32_t GlShader::compileShader(uint32_t type, char* shaderSrc)
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{
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GLuint shader;
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GLint compiled;
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// Create the shader object
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shader = glCreateShader(type);
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/**
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* [0] shader version string
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* [1] precision declaration
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* [2] shader source
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*/
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const char* shaderPack[3];
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// but in general All Desktop GPU should use OpenGL version ( #version 330 core )
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#if defined (THORVG_GL_TARGET_GLES)
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shaderPack[0] ="#version 300 es\n";
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#else
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shaderPack[0] ="#version 330 core\n";
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#endif
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shaderPack[1] = "precision highp float;\n precision highp int;\n";
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shaderPack[2] = shaderSrc;
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// Load the shader source
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glShaderSource(shader, 3, shaderPack, NULL);
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// Compile the shader
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glCompileShader(shader);
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// Check the compile status
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glGetShaderiv(shader, GL_COMPILE_STATUS, &compiled);
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if (!compiled)
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{
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GLint infoLen = 0;
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glGetShaderiv(shader, GL_INFO_LOG_LENGTH, &infoLen);
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if (infoLen > 0)
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{
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auto infoLog = tvg::malloc<char*>(sizeof(char)*infoLen);
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glGetShaderInfoLog(shader, infoLen, NULL, infoLog);
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TVGERR("GL_ENGINE", "Error compiling shader: %s", infoLog);
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tvg::free(infoLog);
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}
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glDeleteShader(shader);
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}
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return shader;
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}
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/************************************************************************/
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/* External Class Implementation */
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/************************************************************************/
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GlShader::GlShader(const char* vertSrc, const char* fragSrc)
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{
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mVtShader = compileShader(GL_VERTEX_SHADER, const_cast<char*>(vertSrc));
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mFrShader = compileShader(GL_FRAGMENT_SHADER, const_cast<char*>(fragSrc));
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}
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GlShader::~GlShader()
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{
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glDeleteShader(mVtShader);
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glDeleteShader(mFrShader);
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}
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uint32_t GlShader::getVertexShader()
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{
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return mVtShader;
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}
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uint32_t GlShader::getFragmentShader()
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{
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return mFrShader;
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} |