C++ piglit_link_check_status函数代码示例

void
piglit_init(int argc, char **argv)
{
	GLboolean try_to_render;
	GLuint vs;
	GLuint fs;

	piglit_require_gl_version(20);

	piglit_require_extension("GL_EXT_separate_shader_objects");

	glClearColor(0.3, 0.3, 0.3, 0.0);
	piglit_ortho_projection(piglit_width, piglit_height, GL_FALSE);

	vs = piglit_compile_shader_text(GL_VERTEX_SHADER, vs_text);
	fs = piglit_compile_shader_text(GL_FRAGMENT_SHADER, fs_text);

	prog[0] = piglit_link_simple_program(vs, 0);
	prog[1] = piglit_link_simple_program(0,  fs);

	glDeleteShader(vs);
	glDeleteShader(fs);

	/* Don't try to render if either program failed to link, and linking
	 * had better succeed!
	 */
	try_to_render = piglit_link_check_status(prog[0]);
	try_to_render = piglit_link_check_status(prog[1])
		&& try_to_render;

	if (!try_to_render)
		piglit_report_result(PIGLIT_FAIL);
}

void piglit_init(int argc, char **argv)
{
	unsigned glsl_version;
	GLuint vs_prog;
	GLuint fs_prog_same_declaration_order;
	GLuint fs_prog_same_location_order;
	char *source;

	piglit_require_vertex_shader();
	piglit_require_fragment_shader();
	piglit_require_extension("GL_ARB_separate_shader_objects");
	piglit_require_extension("GL_ARB_explicit_attrib_location");

	glsl_version = pick_a_glsl_version();

	(void)!asprintf(&source, vs_code_template, glsl_version);
	vs_prog = glCreateShaderProgramv(GL_VERTEX_SHADER, 1,
					 (const GLchar *const *) &source);
	piglit_link_check_status(vs_prog);
	free(source);

	(void)!asprintf(&source, fs_code_same_declaration_order_template, glsl_version);
	fs_prog_same_declaration_order =
		glCreateShaderProgramv(GL_FRAGMENT_SHADER, 1,
				       (const GLchar *const *) &source);
	piglit_link_check_status(fs_prog_same_declaration_order);
	free(source);

	(void)!asprintf(&source, fs_code_same_location_order_template, glsl_version);
	fs_prog_same_location_order =
		glCreateShaderProgramv(GL_FRAGMENT_SHADER, 1,
				       (const GLchar *const *) &source);
	piglit_link_check_status(fs_prog_same_location_order);
	free(source);

	glGenProgramPipelines(1, &pipeline_same_declaration_order);
	glUseProgramStages(pipeline_same_declaration_order,
			   GL_VERTEX_SHADER_BIT,
			   vs_prog);
	glUseProgramStages(pipeline_same_declaration_order,
			   GL_FRAGMENT_SHADER_BIT,
			   fs_prog_same_declaration_order);
	piglit_program_pipeline_check_status(pipeline_same_declaration_order);

	glGenProgramPipelines(1, &pipeline_same_location_order);
	glUseProgramStages(pipeline_same_location_order,
			   GL_VERTEX_SHADER_BIT,
			   vs_prog);
	glUseProgramStages(pipeline_same_location_order,
			   GL_FRAGMENT_SHADER_BIT,
			   fs_prog_same_location_order);
	piglit_program_pipeline_check_status(pipeline_same_location_order);

	if (!piglit_check_gl_error(0))
		piglit_report_result(PIGLIT_FAIL);
}

void run_test(struct get_tests *test)
{
	GLsizei size;
	GLenum type;
	GLuint vs;
	GLuint prog;
	char vstest[1024];

	snprintf(vstest, 1024, vstext, test->glsltype, test->glsltype);

	vs = piglit_compile_shader_text(GL_VERTEX_SHADER, vstest);
	prog = glCreateProgram();
	glAttachShader(prog, vs);
	glBindAttribLocation(prog, 0, "vertex");
	glTransformFeedbackVaryings(prog, ARRAY_SIZE(varyings),
				    varyings,
				    GL_INTERLEAVED_ATTRIBS_EXT);
	glLinkProgram(prog);
	if (!piglit_link_check_status(prog)) {
		glDeleteProgram(prog);
		piglit_report_result(PIGLIT_FAIL);
	}

	glGetTransformFeedbackVarying(prog, 0, 0, NULL, &size,
				      &type, NULL);
	if (size != test->size) {
		printf("For %s, size %d vs %d\n", test->glsltype, size, test->size);
		size_and_type_ok = false;
	}
	if (type != test->type) {
		printf("For %s, size %d vs %d\n", test->glsltype, type, test->type);
		size_and_type_ok = false;
	}
	glDeleteProgram(prog);
}

PIGLIT_GL_TEST_CONFIG_END

bool compile_simple_program(const char* vs_text, const char* fs_text)
{
	GLuint vs;
	GLuint fs;
	GLuint prog;
	bool status;

	prog = glCreateProgram();

	vs = piglit_compile_shader_text_nothrow(GL_VERTEX_SHADER, vs_text);
	fs = piglit_compile_shader_text_nothrow(GL_FRAGMENT_SHADER, fs_text);

	if (!vs || !fs)
		return false;

	glAttachShader(prog, vs);
	glAttachShader(prog, fs);
	glLinkProgram(prog);

	status = piglit_link_check_status(prog);
	glDeleteProgram(prog);
	return status;
}

void
piglit_init(int argc, char *argv[])
{
	GLuint vs, gs, prog;

	piglit_require_gl_version(15);
	piglit_require_GLSL();

	do_query_init(queries, ARRAY_SIZE(queries));

	prog = glCreateProgram();

	vs = piglit_compile_shader_text(GL_VERTEX_SHADER, vs_src);
	gs = piglit_compile_shader_text(GL_GEOMETRY_SHADER, gs_src);

#ifndef DISPLAY
	glEnable(GL_RASTERIZER_DISCARD);
#else
	glAttachShader(prog,
			piglit_compile_shader_text(GL_FRAGMENT_SHADER, fs_src));
#endif

	glAttachShader(prog, vs);
	glAttachShader(prog, gs);
	glLinkProgram(prog);

	if (!piglit_link_check_status(prog)) {
		glDeleteProgram(prog);
		piglit_report_result(PIGLIT_FAIL);
	}

	glUseProgram(prog);
}

void piglit_init(int argc, char **argv)
{
	GLint vert;
	GLint prog;
	GLboolean ok;

	piglit_require_gl_version(20);

	piglit_require_extension("GL_ARB_explicit_attrib_location");

	vert = piglit_compile_shader(GL_VERTEX_SHADER,
				     "shaders/glsl-explicit-location-01.vert");
	prog = glCreateProgram();
	glAttachShader(prog, vert);
	glLinkProgram(prog);

	ok = piglit_link_check_status(prog);
	if (ok) {
		GLint loc = glGetAttribLocation(prog, "vertex");

		if (loc != 0) {
			fprintf(stderr,
				"Expected location of 'vertex' to be 0, got "
				"%d instead.\n", loc);
			ok = GL_FALSE;
		}

	}

	piglit_report_result(ok ? PIGLIT_PASS : PIGLIT_FAIL);
}

static bool
build_and_use_program(GLint gs_invocation_n, const char *gs_template,
                      const char **gs_varyings, int array_size)
{
	GLuint prog;

	char *gs_text;

	asprintf(&gs_text, gs_template, gs_invocation_n);
	prog = piglit_build_simple_program_multiple_shaders(
				GL_VERTEX_SHADER, vs_pass_thru_text,
				GL_GEOMETRY_SHADER, gs_text, 0);
	free(gs_text);

	glTransformFeedbackVaryings(prog, array_size, gs_varyings,
				GL_INTERLEAVED_ATTRIBS);

	glLinkProgram(prog);
	if (!piglit_link_check_status(prog))
		return false;
	if (!piglit_check_gl_error(GL_NO_ERROR))
		return false;

	glUseProgram(prog);

	return true;
}

void
piglit_init(int argc, char **argv)
{
	GLint ok;
	GLuint prog;
	GLuint fs[2];

	if (piglit_get_gl_version() < 20) {
		printf("Requires OpenGL 2.0\n");
		piglit_report_result(PIGLIT_SKIP);
	}

	piglit_require_extension("GL_ARB_fragment_coord_conventions");

	fs[0] = piglit_compile_shader_text(GL_FRAGMENT_SHADER, layout_center);
	fs[1] = piglit_compile_shader_text(GL_FRAGMENT_SHADER, layout_upper);
	prog = glCreateProgram();
	glAttachShader(prog, fs[0]);
	glAttachShader(prog, fs[1]);
	glLinkProgram(prog);
	glDeleteShader(fs[0]);
	glDeleteShader(fs[1]);

	ok = piglit_link_check_status(prog);
	if (!ok) {
		fprintf(stderr,
			"Linking with gl_FragCoord layouts "
			"failed when it should have succeeded.\n");
		piglit_report_result(PIGLIT_FAIL);
	}

	piglit_report_result(PIGLIT_PASS);
}

void
piglit_init(int argc, char **argv)
{
	static const char *varyings[] = { "valOut1", "valOut2" };
	GLint inAttrib;

	/* Check the driver. */
	piglit_require_extension("GL_ARB_transform_feedback3");
	piglit_require_extension("GL_ARB_direct_state_access");

	/* Create shaders. */
	prog = piglit_build_simple_program_unlinked(vstext, NULL);
	glTransformFeedbackVaryings(prog, 2, varyings,
					GL_SEPARATE_ATTRIBS);
	glLinkProgram(prog);
	if (!piglit_link_check_status(prog)) {
		glDeleteProgram(prog);
		piglit_report_result(PIGLIT_FAIL);
	}
	glUseProgram(prog);

	/* Set up the Vertex Array Buffer */
	glEnable(GL_VERTEX_ARRAY);
	glGenVertexArrays(1, &vao);
	glBindVertexArray(vao);

	/* Set up the input data buffer */
	glGenBuffers(1, &input_buf);
	glBindBuffer(GL_ARRAY_BUFFER, input_buf);
	glBufferData(GL_ARRAY_BUFFER, sizeof(inputs), inputs, GL_STATIC_DRAW);
	inAttrib = glGetAttribLocation(prog, "valIn");
	piglit_check_gl_error(GL_NO_ERROR);
	glVertexAttribPointer(inAttrib, 1, GL_FLOAT, GL_FALSE, 0, 0);
	glEnableVertexAttribArray(inAttrib);
}

void
draw(const float *color, float x_offset)
{
	GLuint vs, fs, prog;
	GLint color_location;
	GLint offset_location;

	vs = piglit_compile_shader_text(GL_VERTEX_SHADER, vs_text);
	fs = piglit_compile_shader_text(GL_FRAGMENT_SHADER, fs_text);
	prog = piglit_link_simple_program(vs, fs);

	glBindAttribLocation(prog, 0, "vertex");
	glLinkProgram(prog);
	piglit_link_check_status(prog);

	glDeleteShader(vs);
	glDeleteShader(fs);

	glUseProgram(prog);
	color_location = glGetUniformLocation(prog, "color");
	offset_location = glGetUniformLocation(prog, "offset");

	glUniform4fv(color_location, 1, color);
	glUniform4f(offset_location, x_offset, 0.0f, 0.0f, 0.0f);
	glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
	glDeleteProgram(prog);
}

void
piglit_init(int argc, char **argv)
{
	GLuint vs;

	if (piglit_get_gl_version() < 20) {
		printf("Requires OpenGL 2.0\n");
		piglit_report_result(PIGLIT_SKIP);
	}

	glClearColor(0.3, 0.3, 0.3, 0.0);
	piglit_ortho_projection(piglit_width, piglit_height, GL_FALSE);

	vs = piglit_compile_shader_text(GL_VERTEX_SHADER, vs_text);

	prog = piglit_link_simple_program(vs, 0);

	glDeleteShader(vs);

	/* Don't try to render if the program failed to link, and linking
	 * had better succeed!
	 */
	if (!piglit_link_check_status(prog))
		piglit_report_result(PIGLIT_FAIL);

	glUseProgram(prog);
}

void
piglit_init(int argc, char *argv[])
{
	GLuint prog, array, buf;

	glGenVertexArrays(1, &array);
	glBindVertexArray(array);
	glGenBuffers(1, &buf);
	glBindBuffer(GL_ARRAY_BUFFER, buf);

	prog = piglit_build_simple_program(vs_src, fs_src);

	glVertexAttribPointer(0, /* index */
			      4, /* size */
			      GL_FLOAT, /* type */
			      GL_FALSE, /* normalized */
			      0, /* stride */
			      NULL /* pointer */);
	glEnableVertexAttribArray(0);

#ifndef DISPLAY
	glEnable(GL_RASTERIZER_DISCARD);
#endif

	do_query_init(queries, ARRAY_SIZE(queries));

	if (!piglit_link_check_status(prog)) {
		glDeleteProgram(prog);
		piglit_report_result(PIGLIT_FAIL);
	}

	glUseProgram(prog);
}

void piglit_init(int argc, char **argv)
{
	GLuint vs;
	GLint maxcomps, maxattrs;
	unsigned i;

	piglit_ortho_projection(piglit_width, piglit_height, GL_FALSE);

	/* Check the driver. */
	if (piglit_get_gl_version() < 15) {
		fprintf(stderr, "OpenGL 1.5 required.\n");
		piglit_report_result(PIGLIT_SKIP);
	}
	piglit_require_GLSL();
	piglit_require_transform_feedback();

	glGetIntegerv(GL_MAX_TRANSFORM_FEEDBACK_SEPARATE_ATTRIBS_EXT, &maxattrs);
	if (maxattrs < 4) {
		fprintf(stderr, "Not enough separate attribs supported by transform feedback.\n");
		piglit_report_result(PIGLIT_SKIP);
	}
	glGetIntegerv(GL_MAX_TRANSFORM_FEEDBACK_SEPARATE_COMPONENTS_EXT, &maxcomps);
	if (maxcomps < 4) {
		fprintf(stderr, "Not enough separate components supported by transform feedback.\n");
		piglit_report_result(PIGLIT_SKIP);
	}

	/* Create shaders. */
	vs = piglit_compile_shader_text(GL_VERTEX_SHADER, vstext);
	prog = piglit_CreateProgram();
	piglit_AttachShader(prog, vs);
	piglit_TransformFeedbackVaryings(prog, sizeof(varyings)/sizeof(varyings[0]),
					 varyings, GL_SEPARATE_ATTRIBS_EXT);
	piglit_LinkProgram(prog);
	if (!piglit_link_check_status(prog)) {
		piglit_DeleteProgram(prog);
		piglit_report_result(PIGLIT_FAIL);
	}

	/* Set up the transform feedback buffer. */
	glGenBuffers(4, buf);
	for (i = 0; i < 4; i++) {
		unsigned j;
		float *ptr;
		glBindBuffer(GL_TRANSFORM_FEEDBACK_BUFFER_EXT, buf[i]);
		glBufferData(GL_TRANSFORM_FEEDBACK_BUFFER_EXT,
			     NUM_OUT_VERTICES*4*sizeof(float), NULL, GL_STREAM_READ);
		ptr = glMapBuffer(GL_TRANSFORM_FEEDBACK_BUFFER_EXT, GL_WRITE_ONLY);
		for (j = 0; j < NUM_OUT_VERTICES*4; j++) {
			ptr[j] = 0.123456;
		}
		glUnmapBuffer(GL_TRANSFORM_FEEDBACK_BUFFER_EXT);
		piglit_BindBufferBase(GL_TRANSFORM_FEEDBACK_BUFFER_EXT, i, buf[i]);
	}

	assert(glGetError() == 0);

	glClearColor(0.2, 0.2, 0.2, 1.0);
	glEnableClientState(GL_VERTEX_ARRAY);
}

void
piglit_init(int argc, char **argv)
{
	GLuint vs, fs;

	if (piglit_get_gl_version() < 20) {
		printf("Requires OpenGL 2.0\n");
		piglit_report_result(PIGLIT_SKIP);
	}

	vs = piglit_compile_shader(GL_VERTEX_SHADER,
				   "shaders/glsl-color-mvp.vert");
	fs = piglit_compile_shader(GL_FRAGMENT_SHADER,
				   "shaders/glsl-color.frag");

	prog = piglit_link_simple_program(vs, fs);

	glDeleteShader(vs);
	glDeleteShader(fs);

	/* Don't try to render if the program failed to link, and linking
	 * had better succeed!
	 */
	if (!piglit_link_check_status(prog))
		piglit_report_result(PIGLIT_FAIL);

	glUseProgram(prog);
}

void
piglit_init(int argc, char **argv)
{
	GLuint vs;
	int num_varyings;

	piglit_require_GLSL();
	piglit_require_transform_feedback();

	vs = piglit_compile_shader_text(GL_VERTEX_SHADER, vstext);
	for (num_varyings = 1; num_varyings <= 2; ++num_varyings) {
		GLuint prog = piglit_CreateProgram();
		piglit_AttachShader(prog, vs);
		piglit_BindAttribLocation(prog, 0, "vertex_num");
		piglit_TransformFeedbackVaryings(prog, num_varyings, varyings,
						 GL_INTERLEAVED_ATTRIBS);
		piglit_LinkProgram(prog);
		if (!piglit_link_check_status(prog)) {
			piglit_DeleteProgram(prog);
			piglit_report_result(PIGLIT_FAIL);
		}
		progs[num_varyings - 1] = prog;
	}

	glGenBuffers(1, &xfb_buf);
	glGenQueries(1, &query_prims_generated);
	glGenQueries(1, &query_prims_written);
}