static bool
test_tes_layout(const char *const layout1, const char *const layout2,
const char *const layout_name)
{
unsigned int prog;
bool link_status;
sprintf(tes_source1, tes_source_template, layout1, 1);
sprintf(tes_source2, tes_source_template, layout2, 2);
prog = piglit_build_simple_program_unlinked_multiple_shaders(
GL_VERTEX_SHADER, vs_source,
GL_TESS_CONTROL_SHADER, tcs_source_main,
GL_TESS_EVALUATION_SHADER, tes_source_main_no_pm,
GL_TESS_EVALUATION_SHADER, tes_source1,
GL_TESS_EVALUATION_SHADER, tes_source2,
GL_FRAGMENT_SHADER, fs_source,
0);
glLinkProgram(prog);
link_status = piglit_link_check_status_quiet(prog);
glDeleteProgram(prog);
if (link_status && (layout1 != layout2)) {
fprintf(stderr, "Program with different %s "
"specifications linked succesfully\n", layout_name);
return false;
}
if (!link_status && (layout1 == layout2)) {
fprintf(stderr, "Program with identical %s "
"specifications failed to link\n", layout_name);
return false;
}
return true;
}
static GLuint
build_shaders(const char *vs_prefix, int vs_blocks,
const char *fs_prefix, int fs_blocks)
{
char *vs_source, *fs_source;
GLuint vs, fs, prog;
vs_source = get_shader(GL_VERTEX_SHADER, vs_prefix, vs_blocks);
fs_source = get_shader(GL_FRAGMENT_SHADER, fs_prefix, fs_blocks);
vs = piglit_compile_shader_text(GL_VERTEX_SHADER, vs_source);
fs = piglit_compile_shader_text(GL_FRAGMENT_SHADER, fs_source);
prog = glCreateProgram();
glAttachShader(prog, vs);
glAttachShader(prog, fs);
glLinkProgram(prog);
if (!piglit_link_check_status_quiet(prog)) {
glDeleteProgram(prog);
prog = 0;
}
glDeleteShader(vs);
glDeleteShader(fs);
return prog;
}
void
piglit_init(int argc, char **argv)
{
GLint ok;
GLuint prog;
GLuint vs;
if (piglit_get_gl_version() < 20) {
printf("Requires OpenGL 2.0\n");
piglit_report_result(PIGLIT_SKIP);
}
vs = piglit_compile_shader_text(GL_VERTEX_SHADER, bad_vs_text);
prog = glCreateProgram();
glAttachShader(prog, vs);
glLinkProgram(prog);
glDeleteShader(vs);
ok = piglit_link_check_status_quiet(prog);
if (ok) {
fprintf(stderr,
"Linking with unresolved symbol succeeded when it "
"should have failed.\n");
piglit_report_result(PIGLIT_FAIL);
}
piglit_report_result(PIGLIT_PASS);
}
void
piglit_init(int argc, char **argv)
{
const char *glsl_version_string;
float glsl_version;
GLint ok;
GLuint prog;
GLuint vs;
GLuint fs;
piglit_require_GLSL();
glsl_version_string = (char *)
glGetString(GL_SHADING_LANGUAGE_VERSION);
glsl_version = (glsl_version_string == NULL)
? 0.0 : strtod(glsl_version_string, NULL);
if (glsl_version <= 1.299999) {
printf("Test requires GLSL version >= 1.3. "
"Actual version is %.1f.\n",
glsl_version);
piglit_report_result(PIGLIT_SKIP);
}
vs = piglit_compile_shader_text(GL_VERTEX_SHADER, vert);
fs = piglit_compile_shader_text(GL_FRAGMENT_SHADER, frag);
prog = glCreateProgram();
glAttachShader(prog, vs);
glAttachShader(prog, fs);
glLinkProgram(prog);
glDeleteShader(vs);
glDeleteShader(fs);
ok = piglit_link_check_status_quiet(prog);
if (ok) {
fprintf(stderr,
"Linking with a shader that accesses both "
"gl_ClipDistance and gl_ClipVertex succeeded when it "
"should have failed.\n");
piglit_report_result(PIGLIT_FAIL);
}
piglit_report_result(PIGLIT_PASS);
}
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-04.vert");
prog = glCreateProgram();
glAttachShader(prog, vert);
glLinkProgram(prog);
ok = piglit_link_check_status_quiet(prog);
if (ok)
fprintf(stderr,
"Linking with invalid explicit attribute location "
"succeeded when it should have failed.\n");
piglit_report_result(!ok ? PIGLIT_PASS : PIGLIT_FAIL);
}
void piglit_init(int argc, char **argv)
{
GLint program;
bool expect = false;
bool result;
unsigned i;
const char *invalid_file = NULL;
piglit_require_gl_version(20);
piglit_require_GLSL();
program = glCreateProgram();
for (i = 1; i < argc; i++) {
size_t len;
GLint shader;
GLenum target;
if (strcmp(argv[i], "pass") == 0) {
expect = true;
break;
}
if (strcmp(argv[i], "fail") == 0) {
expect = false;
break;
}
/* Expect that the name is at least one character plus
* ".vert", ".geom", or ".frag"
*/
len = strlen(argv[i]);
if (len < 6) {
invalid_file = argv[i];
break;
}
if (strcmp(argv[i] + len - 5, ".vert") == 0) {
target = GL_VERTEX_SHADER;
} else if (strcmp(argv[i] + len - 5, ".geom") == 0) {
target = GL_GEOMETRY_SHADER;
if (piglit_get_gl_version() < 32 && !piglit_is_extension_supported("GL_ARB_geometry_shader4")) {
printf("Requires geometry shaders.\n");
piglit_report_result(PIGLIT_SKIP);
}
} else if (strcmp(argv[i] + len - 5, ".frag") == 0) {
target = GL_FRAGMENT_SHADER;
} else {
invalid_file = argv[i];
break;
}
shader = piglit_compile_shader(target, argv[i]);
glAttachShader(program, shader);
glDeleteShader(shader);
}
/* The loop above will break when an option of either 'pass' or 'fail'
* is encountered. If this happens at the last commandline argument,
* the loop counter will be (argc-1). Any other value is an error.
*/
if (i != (argc - 1)) {
fprintf(stderr, "Last command line option must be either "
"\"pass\" or \"fail\".\n");
piglit_report_result(PIGLIT_FAIL);
}
if (invalid_file != NULL) {
fprintf(stderr, "Invalid shader file name \"%s\".\n",
invalid_file);
piglit_report_result(PIGLIT_FAIL);
}
glLinkProgram(program);
result = piglit_link_check_status_quiet(program);
if (result != expect)
fprintf(stderr,
"Program should have %s linking, but "
"it was (incorrectly) %s.\n",
expect ? "succeeded" : "failed",
expect ? "unsuccesful" : "succesful");
piglit_report_result((result == expect) ? PIGLIT_PASS : PIGLIT_FAIL);
}
enum piglit_result
piglit_display(void)
{
const char *vs_ssbo_template =
"#version 130\n"
"#extension GL_ARB_shader_storage_buffer_object : enable\n"
"#extension GL_ARB_uniform_buffer_object : enable\n"
"\n"
"varying vec4 vary;"
"in vec4 piglit_vertex;\n"
"\n"
"layout(std140) buffer ssbo {\n"
" vec4 v[%d];\n"
"};\n"
"uniform int i;\n"
"\n"
"void main() {\n"
" gl_Position = piglit_vertex;\n"
" vary = v[i];\n"
"}\n";
const char *fs_template =
"#version 130\n"
"#extension GL_ARB_shader_storage_buffer_object : enable\n"
"\n"
"varying vec4 vary;"
"\n"
"void main() {\n"
" gl_FragColor = vary;\n"
"}\n";
const char *vs_template =
"#version 130\n"
"#extension GL_ARB_shader_storage_buffer_object : enable\n"
"in vec4 piglit_vertex;\n"
"\n"
"void main() {\n"
" gl_Position = piglit_vertex;\n"
"}\n";
const char *fs_ssbo_template =
"#version 130\n"
"#extension GL_ARB_shader_storage_buffer_object : enable\n"
"#extension GL_ARB_uniform_buffer_object : enable\n"
"\n"
"layout(std140) buffer ssbo {\n"
" vec4 v[%d];\n"
"};\n"
"uniform int i;\n"
"\n"
"void main() {\n"
" gl_FragColor = v[i];\n"
"}\n";
char *vs_source, *fs_source;
GLint max_size, vec4s, i_location;
GLuint vs, fs, prog, bo;
GLenum target;
float *data;
size_t size;
bool pass = true;
bool link_should_fail;
const float green[4] = { 0, 1, 0, 0 };
int test_index;
piglit_require_extension("GL_ARB_shader_storage_buffer_object");
piglit_require_extension("GL_ARB_uniform_buffer_object");
glGetIntegerv(GL_MAX_SHADER_STORAGE_BLOCK_SIZE, &max_size);
printf("Max shader storage block size: %d\n", max_size);
vec4s = max_size / 4 / 4;
switch (mode) {
case VS:
target = GL_VERTEX_SHADER;
link_should_fail = false;
test_index = vec4s - 1;
break;
case VS_EXCEED:
target = GL_VERTEX_SHADER;
link_should_fail = true;
vec4s++;
test_index = vec4s - 2;
break;
case FS:
target = GL_FRAGMENT_SHADER;
link_should_fail = false;
test_index = vec4s - 1;
break;
case FS_EXCEED:
target = GL_FRAGMENT_SHADER;
link_should_fail = true;
vec4s++;
test_index = vec4s - 2;
break;
default:
assert(false);
target = GL_NONE;
link_should_fail = false;
}
switch (target) {
case GL_VERTEX_SHADER:
(void)!asprintf(&vs_source, vs_ssbo_template, vec4s);
(void)!asprintf(&fs_source, "%s", fs_template);
printf("Testing VS with shader storage block vec4 v[%d]\n", vec4s);
break;
case GL_FRAGMENT_SHADER:
(void)!asprintf(&vs_source, "%s", vs_template);
(void)!asprintf(&fs_source, fs_ssbo_template, vec4s);
printf("Testing FS with shader storage block vec4 v[%d]\n", vec4s);
break;
default:
piglit_report_result(PIGLIT_FAIL);
}
vs = piglit_compile_shader_text(GL_VERTEX_SHADER, vs_source);
fs = piglit_compile_shader_text(GL_FRAGMENT_SHADER, fs_source);
prog = glCreateProgram();
glAttachShader(prog, vs);
glAttachShader(prog, fs);
glLinkProgram(prog);
if (link_should_fail) {
if (!piglit_link_check_status_quiet(prog)) {
printf("Failed to link with shader storage block vec4 "
"v[%d]\n", vec4s);
piglit_report_result(PIGLIT_PASS);
}
} else {
if (!piglit_link_check_status_quiet(prog)) {
fprintf(stderr,
"Failed to link with shader storage block vec4 "
"v[%d]\n", vec4s);
return PIGLIT_FAIL;
}
}
size = vec4s * 4 * sizeof(float);
glGenBuffers(1, &bo);
glBindBuffer(GL_SHADER_STORAGE_BUFFER, bo);
glBufferData(GL_SHADER_STORAGE_BUFFER, size, NULL, GL_DYNAMIC_DRAW);
data = glMapBuffer(GL_SHADER_STORAGE_BUFFER, GL_READ_WRITE);
memset(data, 0, size);
/* The whole shader storage buffer will be zeros, except for the
* entry at v[test_index] which will be green.
*/
data[test_index * 4 + 0] = green[0];
data[test_index * 4 + 1] = green[1];
data[test_index * 4 + 2] = green[2];
data[test_index * 4 + 3] = green[3];
glUnmapBuffer(GL_SHADER_STORAGE_BUFFER);
glUseProgram(prog);
i_location = glGetUniformLocation(prog, "i");
glUniform1i(i_location, test_index);
glShaderStorageBlockBinding(prog, 0, 0);
glBindBufferBase(GL_SHADER_STORAGE_BUFFER, 0, bo);
piglit_draw_rect(-1, -1, 2, 2);
pass = piglit_probe_rect_rgba(0, 0, piglit_width, piglit_height, green);
glDeleteProgram(prog);
piglit_present_results();
return pass ? PIGLIT_PASS : PIGLIT_FAIL;
}
static bool
draw(int num_varyings)
{
int data_varying;
float vertex[4][4] = { {0.0, 0.0, 0.0, 1.0},
{0.0, 0.0, 0.0, 1.0},
{0.0, 0.0, 0.0, 1.0},
{0.0, 0.0, 0.0, 1.0} };
float green[4][4] = { {0.0, 1.0, 0.0, 0.0},
{0.0, 1.0, 0.0, 0.0},
{0.0, 1.0, 0.0, 0.0},
{0.0, 1.0, 0.0, 0.0} };
float red[4][4] = { {1.0, 0.0, 0.0, 0.0},
{1.0, 0.0, 0.0, 0.0},
{1.0, 0.0, 0.0, 0.0},
{1.0, 0.0, 0.0, 0.0} };
glVertexAttribPointer(0, 4, GL_FLOAT, GL_FALSE, 4 * sizeof(float),
vertex);
glVertexAttribPointer(1, 4, GL_FLOAT, GL_FALSE, 4 * sizeof(float),
green);
glVertexAttribPointer(2, 4, GL_FLOAT, GL_FALSE, 4 * sizeof(float),
red);
glEnableVertexAttribArray(0);
glEnableVertexAttribArray(1);
glEnableVertexAttribArray(2);
for (data_varying = 0; data_varying < num_varyings; data_varying++) {
GLuint prog, vs, fs;
GLint loc;
float x, y;
vs = get_vs(num_varyings, data_varying);
fs = get_fs(num_varyings, data_varying);
prog = glCreateProgram();
glAttachShader(prog, vs);
glAttachShader(prog, fs);
glBindAttribLocation(prog, 0, "vertex");
glBindAttribLocation(prog, 1, "green");
glBindAttribLocation(prog, 2, "red");
glLinkProgram(prog);
if (!piglit_link_check_status_quiet(prog)) {
if (num_varyings > max_varyings) {
printf("Failed to link with %d out of %d "
"varyings used\n",
num_varyings, max_varyings);
return false;
} else {
piglit_report_result(PIGLIT_FAIL);
}
}
glUseProgram(prog);
loc = glGetUniformLocation(prog, "zero");
if (loc != -1) /* not used for num_varyings == 1 */
glUniform1f(loc, 0.0);
loc = glGetUniformLocation(prog, "one");
assert(loc != -1); /* should always be used */
glUniform1f(loc, 1.0);
x = coord_from_index(data_varying);
y = coord_from_index(num_varyings - 1);
vertex[0][0] = x;
vertex[0][1] = y;
vertex[1][0] = x + 2;
vertex[1][1] = y;
vertex[2][0] = x;
vertex[2][1] = y + 2;
vertex[3][0] = x + 2;
vertex[3][1] = y + 2;
glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
glDeleteShader(vs);
glDeleteShader(fs);
glDeleteProgram(prog);
}
return true;
}
void
piglit_init(int argc, char **argv)
{
enum piglit_result result = PIGLIT_PASS;
GLenum err;
GLint ok;
GLuint prog;
GLuint vs;
if (piglit_get_gl_version() < 20) {
printf("Requires OpenGL 2.0\n");
piglit_report_result(PIGLIT_SKIP);
}
piglit_require_extension("GL_EXT_separate_shader_objects");
printf("Trying shader with unresolved external symbol...\n");
vs = piglit_compile_shader_text(GL_VERTEX_SHADER, bad_vs_text);
prog = glCreateProgram();
glAttachShader(prog, vs);
glLinkProgram(prog);
glDeleteShader(vs);
ok = piglit_link_check_status_quiet(prog);
if (ok) {
fprintf(stderr,
"Linking with unresolved symbol succeeded when it "
"should have failed.\n");
piglit_report_result(PIGLIT_FAIL);
}
/* There shouldn't be any GL errors, but clear them all just to be
* sure.
*/
while (glGetError() != 0)
/* empty */ ;
/* The specified program is not linked. This should generate
* the error GL_INVALID_OPERATION.
*/
glActiveProgramEXT(prog);
err = glGetError();
if (err != GL_INVALID_OPERATION) {
printf("Unexpected OpenGL error state 0x%04x for "
"glActiveProgramEXT called with\n"
"an unlinked shader program (expected 0x%04x).\n",
err, GL_INVALID_OPERATION);
result = PIGLIT_FAIL;
}
glDeleteProgram(prog);
glUseProgram(0);
/* Try again with a shader program that could be linked but wasn't.
*/
printf("Trying unlinked, valid shader...\n");
vs = piglit_compile_shader_text(GL_VERTEX_SHADER, good_vs_text);
prog = glCreateProgram();
glAttachShader(prog, vs);
glDeleteShader(vs);
/* There shouldn't be any GL errors, but clear them all just to be
* sure.
*/
while (glGetError() != 0)
/* empty */ ;
/* The specified program is not linked. This should generate
* the error GL_INVALID_OPERATION.
*/
glActiveProgramEXT(prog);
err = glGetError();
if (err != GL_INVALID_OPERATION) {
printf("Unexpected OpenGL error state 0x%04x for "
"glActiveProgramEXT called with\n"
"an unlinked shader program (expected 0x%04x).\n",
err, GL_INVALID_OPERATION);
result = PIGLIT_FAIL;
}
glDeleteProgram(prog);
glUseProgram(0);
piglit_report_result(result);
}
void
piglit_init(int argc, char **argv)
{
bool pass = true;
GLuint vs = 0, gs = 0;
int i;
prog = glCreateProgram();
vs = piglit_compile_shader_text(GL_VERTEX_SHADER, vstext);
gs = piglit_compile_shader_text(GL_GEOMETRY_SHADER, gstext);
glAttachShader(prog, vs);
glAttachShader(prog, gs);
/* check that invalid_varying_names fail to link */
for (i = 0; i < ARRAY_SIZE(invalid_varying_names); i++) {
glTransformFeedbackVaryings(prog,
1,
&invalid_varying_names[i],
GL_INTERLEAVED_ATTRIBS);
glLinkProgram(prog);
if (piglit_link_check_status_quiet(prog)) {
printf("%s is not valid but it was allowed.\n",
invalid_varying_names[i]);
pass = false;
}
}
/* check that valid_varying_names link properly */
glTransformFeedbackVaryings(prog,
ARRAY_SIZE(valid_varying_names),
valid_varying_names,
GL_INTERLEAVED_ATTRIBS);
glLinkProgram(prog);
if (!piglit_link_check_status(prog)) {
glDeleteProgram(prog);
printf("Transform feedback varyings failed to link properly"
" with valid names.\n");
piglit_report_result(PIGLIT_FAIL);
}
glUseProgram(prog);
for (i = 0; i < ARRAY_SIZE(valid_varying_names); i++) {
char varName[50];
GLsizei nameLength = 0, varSize = 0;
GLenum varType = GL_NONE;
glGetTransformFeedbackVarying( prog,
i,
sizeof(varName),
&nameLength,
&varSize,
&varType,
varName);
printf("Name: %s\t\tType: %s\n",
varName, piglit_get_gl_enum_name(varType));
}
pass = piglit_check_gl_error(GL_NO_ERROR) && pass;
piglit_report_result(pass ? PIGLIT_PASS : PIGLIT_FAIL);
}