C++ (Cpp) ms_fbo_and_draw_buffers_setup Examples

Example #1

File: draw-buffers-alpha-to-coverage.cpp Project: BNieuwenhuizen/piglit

void
piglit_init(int argc, char **argv)
{
	int samples;
	/* At present fragment shader supports only fixed number of
	 * attachments (3)
	 */
	int num_attachments = 3;

	if (argc < 2)
		print_usage_and_exit(argv[0]);
	{
		char *endptr = NULL;
		samples = strtol(argv[1], &endptr, 0);
		if (endptr != argv[1] + strlen(argv[1]))
			print_usage_and_exit(argv[0]);
	}

	piglit_require_gl_version(21);
	piglit_require_extension("GL_ARB_framebuffer_object");
	piglit_require_extension("GL_ARB_vertex_array_object");

	int pattern_width = piglit_width / 2;
	int pattern_height = piglit_height / num_attachments;

	piglit_ortho_projection(pattern_width,
				pattern_height,
				GL_TRUE);

	/* Skip the test if samples > GL_MAX_SAMPLES */
	GLint max_samples;
	glGetIntegerv(GL_MAX_SAMPLES, &max_samples);

	if (samples > max_samples)
		piglit_report_result(PIGLIT_SKIP);

	ms_fbo_and_draw_buffers_setup(samples,
				      pattern_width,
				      pattern_height,
				      num_attachments,
				      GL_COLOR_BUFFER_BIT,
				      GL_RGBA);
	shader_compile(true /* sample_alpha_to_coverage */,
		       false /* dual_src_blend */);
}

Example #2

File: alpha-to-coverage-dual-src-blend.cpp Project: chemecse/piglit

void
piglit_init(int argc, char **argv)
{
	int samples;
	const int num_attachments = 1;

	if (argc < 2)
		print_usage_and_exit(argv[0]);
	{
		char *endptr = NULL;
		samples = strtol(argv[1], &endptr, 0);
		if (endptr != argv[1] + strlen(argv[1]))
			print_usage_and_exit(argv[0]);
	}

	piglit_require_gl_version(30);

	int pattern_width = piglit_width / 2;
	int pattern_height = piglit_height / num_attachments;

	piglit_ortho_projection(pattern_width,
				pattern_height,
				GL_TRUE);

	/* Skip the test if samples > GL_MAX_SAMPLES */
	GLint max_samples;
	glGetIntegerv(GL_MAX_SAMPLES, &max_samples);

	if (samples > max_samples)
		piglit_report_result(PIGLIT_SKIP);

	ms_fbo_and_draw_buffers_setup(samples,
				      pattern_width,
				      pattern_height,
				      num_attachments,
				      GL_COLOR_BUFFER_BIT,
				      GL_RGBA);

	shader_compile(true /* sample_alpha_to_coverage */,
		       true /* dual_src_blend */,
		       true /* frag_out_zero_write */);
}

Example #3

File: int-draw-buffers-alpha-to-one.cpp Project: RAOF/piglit

void
piglit_init(int argc, char **argv)
{

	if (argc < 2)
		print_usage_and_exit(argv[0]);
	{
		char *endptr = NULL;
		samples = strtol(argv[1], &endptr, 0);
		if (endptr != argv[1] + strlen(argv[1]))
			print_usage_and_exit(argv[0]);
	}

	piglit_require_gl_version(30);

	int pattern_width = piglit_width / 2;
	int pattern_height = piglit_height / num_attachments;

	piglit_ortho_projection(pattern_width,
				pattern_height,
				GL_TRUE);
	/* Skip the test if samples > GL_MAX_SAMPLES */
	GLint max_samples;
	glGetIntegerv(GL_MAX_SAMPLES, &max_samples);

	if (samples > max_samples)
		piglit_report_result(PIGLIT_SKIP);
	/* Testing of integer formats other than GL_RGBA8I is not supported
	 * by utility functions in draw-buffers-common.cpp.
	 */
	ms_fbo_and_draw_buffers_setup(samples,
				      pattern_width,
				      pattern_height,
				      num_attachments,
				      GL_COLOR_BUFFER_BIT,
				      GL_RGBA8I);
	shader_compile(false /* sample_alpha_to_coverage */,
		       false /* dual_src_blend */);
}

Example #4

File: alpha-to-one-single-sample-buffer.cpp Project: RAOF/piglit

PIGLIT_GL_TEST_CONFIG_END

void
piglit_init(int argc, char **argv)
{
	const int num_attachments = 1;
	/* For single sample buffer */
	const int samples = 0;

	piglit_require_gl_version(21);
	piglit_require_extension("GL_ARB_framebuffer_object");
	piglit_require_extension("GL_ARB_vertex_array_object");

	int pattern_width = piglit_width / 2;
	int pattern_height = piglit_height / num_attachments;

	piglit_ortho_projection(pattern_width,
				pattern_height,
				GL_TRUE);

	/* Skip the test if samples > GL_MAX_SAMPLES */
	GLint max_samples;
	glGetIntegerv(GL_MAX_SAMPLES, &max_samples);

	if (samples > max_samples)
		piglit_report_result(PIGLIT_SKIP);

	ms_fbo_and_draw_buffers_setup(samples,
				      pattern_width,
				      pattern_height,
				      num_attachments,
				      GL_COLOR_BUFFER_BIT,
				      GL_RGBA);
	shader_compile(false /* sample_alpha_to_coverage */,
		       false /* dual_src_blend */);
}