C++ (Cpp) can_render Examples

Example #1

File: gl-subsystem.c Project: AhmedAbdulSalam5/obs-studio

void device_draw(gs_device_t *device, enum gs_draw_mode draw_mode,
		uint32_t start_vert, uint32_t num_verts)
{
	struct gs_index_buffer *ib = device->cur_index_buffer;
	GLenum  topology = convert_gs_topology(draw_mode);
	gs_effect_t *effect = gs_get_effect();
	struct gs_program *program;

	if (!can_render(device))
		goto fail;

	if (effect)
		gs_effect_update_params(effect);

	program = get_shader_program(device);
	if (!program)
		goto fail;

	load_vb_buffers(program, device->cur_vertex_buffer);

	if (program != device->cur_program && device->cur_program) {
		glUseProgram(0);
		gl_success("glUseProgram (zero)");
	}

	if (program != device->cur_program) {
		device->cur_program = program;

		glUseProgram(program->obj);
		if (!gl_success("glUseProgram"))
			goto fail;
	}

	update_viewproj_matrix(device);

	program_update_params(program);

	if (ib) {
		if (num_verts == 0)
			num_verts = (uint32_t)device->cur_index_buffer->num;
		glDrawElements(topology, num_verts, ib->gl_type,
				(const GLvoid*)(start_vert * ib->width));
		if (!gl_success("glDrawElements"))
			goto fail;

	} else {
		if (num_verts == 0)
			num_verts = (uint32_t)device->cur_vertex_buffer->num;
		glDrawArrays(topology, start_vert, num_verts);
		if (!gl_success("glDrawArrays"))
			goto fail;
	}

	return;

fail:
	blog(LOG_ERROR, "device_draw (GL) failed");
}

Example #2

File: gl-subsystem.c Project: Tyrrr/obs-studio

void device_draw(device_t device, enum gs_draw_mode draw_mode,
		uint32_t start_vert, uint32_t num_verts)
{
	struct gs_index_buffer *ib = device->cur_index_buffer;
	GLenum  topology = convert_gs_topology(draw_mode);
	effect_t effect = gs_geteffect();

	if (!can_render(device))
		goto fail;

	if (effect)
		effect_updateparams(effect);

	shader_update_textures(device->cur_pixel_shader);

	update_viewproj_matrix(device);


#ifdef _DEBUG
	if (!check_shader_pipeline_validity(device))
		goto fail;
#endif

	if (ib) {
		if (num_verts == 0)
			num_verts = (uint32_t)device->cur_index_buffer->num;
		glDrawElements(topology, num_verts, ib->gl_type,
				(const GLvoid*)(start_vert * ib->width));
		if (!gl_success("glDrawElements"))
			goto fail;

	} else {
		if (num_verts == 0)
			num_verts = (uint32_t)device->cur_vertex_buffer->num;
		glDrawArrays(topology, start_vert, num_verts);
		if (!gl_success("glDrawArrays"))
			goto fail;
	}

	return;

fail:
	blog(LOG_ERROR, "device_draw (GL) failed");
}

Example #3

File: sdl.c Project: 0xheart0/xbmc

void display() {
	int i, wm;
	float size = 5;

	if (!can_render())
		return;

	glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
	glMatrixMode(GL_MODELVIEW);
	glLoadIdentity();

	if (render_mode == IR) {
		/* draw the IR stuff */

		glDisable(GL_LIGHTING);

		glBegin(GL_TRIANGLES);
			/* green center */
			glColor3f(0.0, 1.0, 0.0);
			DRAW_TRIANGLE(width/2, height/2, 0, size);
		glEnd();

		for (wm = 0; wm < MAX_WIIMOTES; ++wm) {
			glBegin(GL_TRIANGLES);
				/* red ir */
				glColor3f(1.0, 0.0, 0.0);
				for (i = 0; i < 4; ++i) {
					if (wiimotes[wm]->ir.dot[i].visible)
						DRAW_TRIANGLE(wiimotes[wm]->ir.dot[i].rx, wiimotes[wm]->ir.dot[i].ry, 0, size);
				}

				/* yellow corrected ir */
				glColor3f(1.0, 1.0, 0.0);
				for (i = 0; i < 4; ++i) {
					if (wiimotes[wm]->ir.dot[i].visible)
						DRAW_TRIANGLE(wiimotes[wm]->ir.dot[i].x, wiimotes[wm]->ir.dot[i].y, 0, size);
				}

				/* blue cursor */
				glColor3f(0.0, 0.0, 1.0);
				DRAW_TRIANGLE(wiimotes[wm]->ir.x, wiimotes[wm]->ir.y-size, 0, size);
			glEnd();
		}
	} else {
		/* draw the teapot */
		gluLookAt(0.0, 0.0, -5.0,
				  0.0, 0.0, 0.0,
				  0.0, 1.0, 0.0);

		glEnable(GL_LIGHTING);
		glEnable(GL_LIGHT0);
		update_light(GL_LIGHT0, &light);
		set_material(&red_plastic);

		glRotatef(wiimotes[0]->orient.roll, 0.0f, 0.0f, 1.0f);
		glRotatef(wiimotes[0]->orient.pitch, 1.0f, 0.0f, 0.0f);


		glutSolidTeapot(1);
	}

	SDL_GL_SwapBuffers();
}