void PointCloudApplication::setup_graphics() {
// Define Viewport
glViewport(0,
0,
context.viewport_width * ui_scale_factor,
context.viewport_height * ui_scale_factor);
setup_video_texture();
logo_texture = read_png_texture("pointcloud-logo.png");
point_texture = read_png_texture("trackpoint.png");
switch_to_ortho();
}
int main(int argc, char **argv)
{
if (argc < 2) {
printf("Usage: test_media <video_to_play>\n");
return EXIT_FAILURE;
}
player = android_media_new_player();
if (player == NULL) {
printf("Problem creating new media player.\n");
return EXIT_FAILURE;
}
// Set player event cb for when the video size is known:
android_media_set_video_size_cb(player, set_video_size_cb, NULL);
android_media_set_media_prepared_cb(player, media_prepared_cb, NULL);
printf("Setting data source to: %s.\n", argv[1]);
if (android_media_set_data_source(player, argv[1]) != OK) {
printf("Failed to set data source: %s\n", argv[1]);
return EXIT_FAILURE;
}
printf("Creating EGL surface.\n");
struct ClientWithSurface cs = client_with_surface(true /* Associate surface with egl. */);
if (!cs.surface) {
printf("Problem acquiring surface for preview");
return EXIT_FAILURE;
}
printf("Creating GL texture.\n");
GLuint preview_texture_id;
EGLDisplay disp = sf_client_get_egl_display(cs.client);
EGLSurface surface = sf_surface_get_egl_surface(cs.surface);
sf_surface_make_current(cs.surface);
if (setup_video_texture(&cs, &preview_texture_id) != OK) {
printf("Problem setting up GL texture for video surface.\n");
return EXIT_FAILURE;
}
printf("Starting video playback.\n");
android_media_play(player);
while (android_media_is_playing(player)) {
const GLfloat textureCoordinates[] = {
1.0f, 1.0f,
0.0f, 1.0f,
0.0f, 0.0f,
1.0f, 0.0f
};
android_media_update_surface_texture(player);
calculate_position_coordinates();
gProgram = create_program(vertex_shader(), fragment_shader());
gaPositionHandle = glGetAttribLocation(gProgram, "a_position");
gaTexHandle = glGetAttribLocation(gProgram, "a_texCoord");
gsTextureHandle = glGetUniformLocation(gProgram, "s_texture");
gmTexMatrix = glGetUniformLocation(gProgram, "m_texMatrix");
glClear(GL_COLOR_BUFFER_BIT);
// Use the program object
glUseProgram(gProgram);
// Enable attributes
glEnableVertexAttribArray(gaPositionHandle);
glEnableVertexAttribArray(gaTexHandle);
// Load the vertex position
glVertexAttribPointer(gaPositionHandle,
2,
GL_FLOAT,
GL_FALSE,
0,
positionCoordinates);
// Load the texture coordinate
glVertexAttribPointer(gaTexHandle,
2,
GL_FLOAT,
GL_FALSE,
0,
textureCoordinates);
GLfloat matrix[16];
android_media_surface_texture_get_transformation_matrix(player, matrix);
glUniformMatrix4fv(gmTexMatrix, 1, GL_FALSE, matrix);
glActiveTexture(GL_TEXTURE0);
// Set the sampler texture unit to 0
glUniform1i(gsTextureHandle, 0);
glUniform1i(gmTexMatrix, 0);
android_media_update_surface_texture(player);
glDrawArrays(GL_TRIANGLE_FAN, 0, 4);
glDisableVertexAttribArray(gaPositionHandle);
glDisableVertexAttribArray(gaTexHandle);
eglSwapBuffers(disp, surface);
}
android_media_stop(player);
return EXIT_SUCCESS;
}
