| // |
| // Copyright 2021 The ANGLE Project Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| // |
| |
| // Based on CubeMapActivity.java from The Android Open Source Project ApiDemos |
| // https://android.googlesource.com/platform/development/+/refs/heads/master/samples/ApiDemos/src/com/example/android/apis/graphics/CubeMapActivity.java |
| |
| #include "SampleApplication.h" |
| #include "torus.h" |
| |
| class GLES1TorusLightingSample : public SampleApplication |
| { |
| public: |
| GLES1TorusLightingSample(int argc, char **argv) |
| : SampleApplication("GLES1 Torus Lighting", argc, argv, 1, 0) |
| {} |
| |
| bool initialize() override |
| { |
| glClearColor(0.0f, 0.0f, 0.0f, 0.0f); |
| |
| glShadeModel(GL_SMOOTH); |
| |
| GLfloat light_model_ambient[] = {1.0f, 1.0f, 1.0f, 1.0f}; |
| glLightModelfv(GL_LIGHT_MODEL_AMBIENT, light_model_ambient); |
| glEnable(GL_LIGHTING); |
| glEnable(GL_LIGHT0); |
| |
| GenerateTorus(&mVertexBuffer, &mIndexBuffer, &mIndexCount); |
| |
| return true; |
| } |
| |
| void destroy() override |
| { |
| glDeleteBuffers(1, &mVertexBuffer); |
| glDeleteBuffers(1, &mIndexBuffer); |
| } |
| |
| void draw() override |
| { |
| glViewport(0, 0, getWindow()->getWidth(), getWindow()->getHeight()); |
| glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); |
| |
| float ratio = (float)getWindow()->getWidth() / (float)getWindow()->getHeight(); |
| glMatrixMode(GL_PROJECTION); |
| glLoadIdentity(); |
| glFrustumf(-ratio, ratio, -1, 1, 1.0f, 20.0f); |
| |
| glEnable(GL_DEPTH_TEST); |
| glMatrixMode(GL_MODELVIEW); |
| glLoadIdentity(); |
| |
| glPushMatrix(); |
| |
| GLfloat lightDir[] = {0.0f, 0.0f, 1.0f, 0.0f}; |
| glLightfv(GL_LIGHT0, GL_POSITION, lightDir); |
| glPopMatrix(); |
| |
| glTranslatef(0, 0, -5); |
| |
| glRotatef(mAngle, 0, 1, 0); |
| glRotatef(mAngle * 0.25f, 1, 0, 0); |
| |
| glEnableClientState(GL_VERTEX_ARRAY); |
| |
| glBindBuffer(GL_ARRAY_BUFFER, mVertexBuffer); |
| glVertexPointer(3, GL_FLOAT, 6 * sizeof(GLfloat), nullptr); |
| |
| glEnableClientState(GL_NORMAL_ARRAY); |
| glNormalPointer(GL_FLOAT, 6 * sizeof(GLfloat), |
| reinterpret_cast<const void *>(3 * sizeof(GLfloat))); |
| |
| glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, mIndexBuffer); |
| glDrawElements(GL_TRIANGLES, mIndexCount, GL_UNSIGNED_SHORT, 0); |
| glDisableClientState(GL_VERTEX_ARRAY); |
| glDisableClientState(GL_NORMAL_ARRAY); |
| glBindBuffer(GL_ARRAY_BUFFER, 0); |
| glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0); |
| |
| mAngle++; |
| } |
| |
| private: |
| GLuint mVertexBuffer; |
| GLuint mIndexBuffer; |
| GLsizei mIndexCount; |
| float mAngle = 0; |
| }; |
| |
| int main(int argc, char **argv) |
| { |
| GLES1TorusLightingSample app(argc, argv); |
| return app.run(); |
| } |