void CL_GL1FrameBufferProvider::sync_texture()
{
if (pbuffer_changed && (!pbuffer.is_null()))
{
set_active();
CL_Size surface_size = selected_texture_provider->get_surface_size();
CLint old_viewport[4], old_matrix_mode;
CLfloat old_matrix_projection[16], old_matrix_modelview[16];
cl1GetIntegerv(CL_VIEWPORT, old_viewport);
cl1GetIntegerv(CL_MATRIX_MODE, &old_matrix_mode);
cl1GetFloatv(CL_PROJECTION_MATRIX, old_matrix_projection);
cl1GetFloatv(CL_MODELVIEW_MATRIX, old_matrix_modelview);
CLboolean blending = cl1IsEnabled(CL_BLEND);
cl1Disable(CL_BLEND);
cl1Viewport(0, 0, surface_size.width, surface_size.height);
cl1MatrixMode(CL_PROJECTION);
cl1LoadIdentity();
cl1MultMatrixf(CL_Mat4f::ortho_2d(0.0f, (float)surface_size.width, 0.0f, (float)surface_size.height));
cl1MatrixMode(CL_MODELVIEW);
cl1LoadIdentity();
if (cl1ActiveTexture != 0)
cl1ActiveTexture( CL_TEXTURE0 );
cl1PixelZoom(1.0f, 1.0f);
// Copy pbuffer to texture:
cl1Enable(CL_TEXTURE_2D);
cl1BindTexture(CL_TEXTURE_2D, selected_texture_provider->get_handle());
cl1CopyTexSubImage2D(
CL_TEXTURE_2D,
0,
0, 0,
0, 0,
surface_size.width, surface_size.height);
cl1Disable(CL_TEXTURE_2D);
cl1BindTexture(CL_TEXTURE_2D, 0);
if (blending)
cl1Enable(CL_BLEND);
cl1Viewport(old_viewport[0], old_viewport[1], old_viewport[2], old_viewport[3]);
cl1MatrixMode(CL_PROJECTION);
cl1LoadMatrixf(old_matrix_projection);
cl1MatrixMode(CL_MODELVIEW);
cl1LoadMatrixf(old_matrix_modelview);
cl1MatrixMode(old_matrix_mode);
#ifdef __APPLE__
cl1Flush();
#endif
}
pbuffer_changed = false;
}
void CL_GL1FrameBufferProvider::sync_pbuffer()
{
set_active();
CL_Size surface_size = selected_texture_provider->get_surface_size();
CL_Size texture_size = selected_texture_provider->get_texture_size();
CLint old_viewport[4], old_matrix_mode;
CLfloat old_matrix_projection[16], old_matrix_modelview[16];
cl1GetIntegerv(CL_VIEWPORT, old_viewport);
cl1GetIntegerv(CL_MATRIX_MODE, &old_matrix_mode);
cl1GetFloatv(CL_PROJECTION_MATRIX, old_matrix_projection);
cl1GetFloatv(CL_MODELVIEW_MATRIX, old_matrix_modelview);
CLboolean blending = cl1IsEnabled(CL_BLEND);
cl1Disable(CL_BLEND);
cl1Viewport(0, 0, surface_size.width, surface_size.height);
cl1MatrixMode(CL_PROJECTION);
cl1LoadIdentity();
cl1MultMatrixf(CL_Mat4f::ortho_2d(0.0f, (float)surface_size.width, 0.0f, (float)surface_size.height));
cl1MatrixMode(CL_MODELVIEW);
cl1LoadIdentity();
// Copy texture to pbuffer:
cl1ActiveTexture( CL_TEXTURE0 + 0 );
cl1Enable(CL_TEXTURE_2D);
cl1BindTexture(CL_TEXTURE_2D, selected_texture_provider->get_handle());
if (cl1ActiveTexture != 0)
cl1ActiveTexture( CL_TEXTURE0 + 0 );
cl1DisableClientState(CL_TEXTURE_COORD_ARRAY);
cl1MatrixMode(CL_TEXTURE);
CLfloat scale_matrix[16];
memset(scale_matrix, 0, sizeof(CLfloat)*16);
scale_matrix[0] = 1.0f/float(texture_size.width);
scale_matrix[5] = 1.0f/float(texture_size.height);
scale_matrix[10] = 1.0f;
scale_matrix[15] = 1.0f;
cl1LoadMatrixf(scale_matrix);
cl1MatrixMode(CL_MODELVIEW);
cl1Begin(CL_QUADS);
cl1Color3f(1.0f, 1.0f, 1.0f);
cl1TexCoord2f(float(surface_size.width), 0.0f);
cl1Vertex2f(float(surface_size.width), 0.0f);
cl1TexCoord2f(float(surface_size.width), float(surface_size.height));
cl1Vertex2f(float(surface_size.width), float(surface_size.height));
cl1TexCoord2f(0.0f, float(surface_size.height));
cl1Vertex2f(0.0f, float(surface_size.height));
cl1TexCoord2f(0.0f, 0.0f);
cl1Vertex2f(0.0f, 0.0f);
cl1End();
cl1Disable(CL_TEXTURE_2D);
cl1BindTexture(CL_TEXTURE_2D, 0);
cl1MatrixMode(CL_TEXTURE);
cl1LoadIdentity();
cl1MatrixMode(CL_MODELVIEW);
if (blending)
cl1Enable(CL_BLEND);
cl1Viewport(old_viewport[0], old_viewport[1], old_viewport[2], old_viewport[3]);
cl1MatrixMode(CL_PROJECTION);
cl1LoadMatrixf(old_matrix_projection);
cl1MatrixMode(CL_MODELVIEW);
cl1LoadMatrixf(old_matrix_modelview);
cl1MatrixMode(old_matrix_mode);
#ifdef __APPLE__
cl1Flush();
#endif
pbuffer_changed = true;
}
// The start of the Application
int App::start(const std::vector<CL_String> &args)
{
quit = false;
CL_GL1WindowDescription desc;
desc.set_title("ClanLib Object 3D Example");
desc.set_size(CL_Size(640, 480), true);
desc.set_multisampling(4);
desc.set_depth_size(16);
CL_DisplayWindow window(desc);
#ifdef _DEBUG
//struct aiLogStream stream;
//stream = aiGetPredefinedLogStream(aiDefaultLogStream_STDOUT,NULL);
//aiAttachLogStream(&stream);
//stream = aiGetPredefinedLogStream(aiDefaultLogStream_FILE,"assimp_log.txt");
//aiAttachLogStream(&stream);
#endif
// Connect the Window close event
CL_Slot slot_quit = window.sig_window_close().connect(this, &App::on_window_close);
// Connect a keyboard handler to on_key_up()
CL_Slot slot_input_up = (window.get_ic().get_keyboard()).sig_key_up().connect(this, &App::on_input_up);
// Get the graphic context
CL_GraphicContext gc = window.get_gc();
#ifdef USE_OPENGL_1
CL_GraphicContext_GL1 gc_gl1 = gc;
#endif
// Prepare the display
gc.set_map_mode(cl_user_projection);
CL_PolygonRasterizer polygon_rasterizer;
polygon_rasterizer.set_culled(true);
polygon_rasterizer.set_face_cull_mode(cl_cull_back);
polygon_rasterizer.set_front_face(cl_face_side_clockwise);
gc.set_polygon_rasterizer(polygon_rasterizer);
CL_BufferControl buffer_control;
buffer_control.enable_depth_test(true);
buffer_control.set_depth_compare_function(cl_comparefunc_lequal);
buffer_control.enable_depth_write(true);
gc.set_buffer_control(buffer_control);
#ifdef USE_OPENGL_1
// Set the lights
CL_LightModel_GL1 light_model;
light_model.enable_lighting(true);
light_model.set_flat_shading(false);
light_model.set_scene_ambient_light(CL_Colorf(0.2f, 0.2f, 0.2f, 1.0f));
gc_gl1.set_light_model(light_model);
CL_LightSource_GL1 light_distant;
light_distant.set_spot_cutoff(180.0f);
light_distant.set_diffuse_intensity(CL_Colorf(1.0f, 1.0f, 1.0f, 1.0f));
light_distant.set_position(CL_Vec4f(0.0f, -2.0f, 30.0f, 0.0f).normalize3());
gc_gl1.set_light(0, light_distant);
cl1Enable(GL_NORMALIZE);
#endif
#ifdef USE_OPENGL_2
Shader shader(gc);
#endif
// Create the objects
aiSetImportPropertyFloat(AI_CONFIG_PP_GSN_MAX_SMOOTHING_ANGLE,89.53f);
const struct aiScene* scene_teapot = aiImportFile("../Clan3D/Resources/teapot.dae",aiProcessPreset_TargetRealtime_MaxQuality);
if (!scene_teapot)
throw CL_Exception("Cannot load the teapot model");
const struct aiScene* scene_clanlib = aiImportFile("../Clan3D/Resources/clanlib.dae",aiProcessPreset_TargetRealtime_MaxQuality);
if (!scene_clanlib)
throw CL_Exception("Cannot load the clanlib model");
const struct aiScene* scene_tuxball = aiImportFile("../Clan3D/Resources/tux_ball.dae",aiProcessPreset_TargetRealtime_MaxQuality | aiProcess_FlipUVs);
if (!scene_tuxball)
throw CL_Exception("Cannot load the tux ball model");
// Load the texture
CL_Texture tux(gc, "../Clan3D/Resources/tux.png");
float angle = 0.0f;
// Run until someone presses escape
while (!quit)
{
CL_Mat4f perp = CL_Mat4f::perspective(45.0f, ((float) gc.get_width()) / ((float) gc.get_height()), 0.1f, 1000.0f);
gc.set_projection(perp);
gc.clear(CL_Colorf::black);
gc.clear_depth(1.0f);
angle += 1.0f;
if (angle >= 360.0f)
angle -= 360.0f;
#ifdef USE_OPENGL_2
shader.Set(gc);
shader.Use(gc);
#else
gc.set_program_object(cl_program_color_only);
#endif
CL_PrimitivesArray prim_array(gc);
gc.set_modelview(CL_Mat4f::identity());
gc.mult_scale(1.0f,1.0f, -1.0f); // So +'ve Z goes into the screen
gc.mult_translate(0.0f, 0.0f, 2.0f);
gc.mult_rotate(CL_Angle(angle, cl_degrees), 0.0f, 1.0f, 0.0f, false);
gc.push_modelview();
recursive_render(gc, scene_teapot, scene_teapot->mRootNode, false);
gc.pop_modelview();
gc.push_modelview();
gc.mult_scale(0.5f, 0.5f, 0.5f);
gc.mult_translate(0.0f, -0.5f, 0.0f);
recursive_render(gc, scene_clanlib, scene_clanlib->mRootNode, false);
gc.pop_modelview();
#ifdef USE_OPENGL_2
shader.Set(gc, 0);
shader.Use(gc);
#else
gc.set_program_object(cl_program_single_texture);
#endif
gc.set_texture(0, tux);
gc.set_modelview(CL_Mat4f::identity());
gc.mult_scale(1.0f,1.0f, -1.0f); // So +'ve Z goes into the screen
gc.mult_translate(0.7f, 0.5f, 2.0f);
gc.mult_scale(0.05f, 0.05f, 0.05f);
gc.mult_rotate(CL_Angle(angle * 4.0f, cl_degrees), 0.0f, 1.0f, 0.0f, false);
recursive_render(gc, scene_tuxball, scene_tuxball->mRootNode, true);
gc.reset_texture(0);
gc.reset_program_object();
// Flip the display, showing on the screen what we have drawed
// since last call to flip()
window.flip(1);
// This call processes user input and other events
CL_KeepAlive::process();
}
aiReleaseImport(scene_tuxball);
aiReleaseImport(scene_clanlib);
aiReleaseImport(scene_teapot);
aiDetachAllLogStreams();
return 0;
}