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)
{
char *endptr;
GLuint vs, fs;
/* Interpret command line args */
if (argc != 2)
print_usage_and_exit(argv[0]);
endptr = argv[1];
additional_offset = strtoul(argv[1], &endptr, 0);
if (*endptr != '\0')
print_usage_and_exit(argv[0]);
if (additional_offset > 12 || additional_offset % 4 != 0)
print_usage_and_exit(argv[0]);
piglit_require_GLSL_version(130);
piglit_require_gl_version(30);
piglit_require_transform_feedback();
vs = piglit_compile_shader_text(GL_VERTEX_SHADER, vstext);
fs = piglit_compile_shader_text(GL_FRAGMENT_SHADER, fstext);
prog = piglit_CreateProgram();
piglit_AttachShader(prog, vs);
piglit_AttachShader(prog, fs);
piglit_TransformFeedbackVaryings(prog, 5, varyings,
GL_INTERLEAVED_ATTRIBS);
piglit_LinkProgram(prog);
if (!piglit_link_check_status(prog))
piglit_report_result(PIGLIT_FAIL);
glGenBuffers(1, &xfb_buf);
if (!piglit_check_gl_error(0))
piglit_report_result(PIGLIT_FAIL);
}
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);
}
static void
initialize_shader_and_xfb()
{
GLuint prog, vs;
const char *varying = "tf";
piglit_require_gl_version(30);
piglit_require_GLSL_version(130);
piglit_require_transform_feedback();
vs = piglit_compile_shader_text(GL_VERTEX_SHADER, vstext);
prog = piglit_CreateProgram();
piglit_AttachShader(prog, vs);
piglit_TransformFeedbackVaryings(prog, 1, &varying,
GL_INTERLEAVED_ATTRIBS);
piglit_LinkProgram(prog);
if (!piglit_link_check_status(prog)) {
piglit_DeleteProgram(prog);
piglit_report_result(PIGLIT_FAIL);
}
piglit_UseProgram(prog);
}
void piglit_init(int argc, char **argv)
{
GLuint vs;
unsigned i;
float data[BUF_FLOATS];
for (i = 0; i < BUF_FLOATS; i++) {
data[i] = DEFAULT_VALUE;
}
/* Parse params. */
for (i = 1; i < argc; i++) {
if (!strcmp(argv[i], "discard")) {
discard = GL_TRUE;
} else if (!strcmp(argv[i], "offset")) {
/* BindBufferOffset only exists in the EXT specification */
piglit_require_extension("GL_EXT_transform_feedback");
offset = OFFSET;
} else if (!strcmp(argv[i], "range")) {
offset = OFFSET;
range = MAX_RANGE-7;
} else if (!strcmp(argv[i], "render")) {
test = RENDER;
} else if (!strcmp(argv[i], "primgen")) {
test = PRIMGEN;
} else if (!strcmp(argv[i], "primwritten")) {
test = PRIMWRITTEN;
}
}
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();
/* Create shaders. */
vs = piglit_compile_shader_text(GL_VERTEX_SHADER, vstext);
prog = piglit_CreateProgram();
piglit_AttachShader(prog, vs);
piglit_TransformFeedbackVaryings(prog, 1, varyings, GL_INTERLEAVED_ATTRIBS_EXT);
piglit_LinkProgram(prog);
if (!piglit_link_check_status(prog)) {
piglit_DeleteProgram(prog);
piglit_report_result(PIGLIT_FAIL);
}
vs = piglit_compile_shader_text(GL_VERTEX_SHADER, vspassthrough);
prog_passthrough = piglit_CreateProgram();
piglit_AttachShader(prog_passthrough, vs);
piglit_TransformFeedbackVaryings(prog_passthrough, 1, varyings, GL_INTERLEAVED_ATTRIBS_EXT);
piglit_LinkProgram(prog_passthrough);
if (!piglit_link_check_status(prog_passthrough)) {
piglit_DeleteProgram(prog_passthrough);
piglit_report_result(PIGLIT_FAIL);
}
/* Set up the transform feedback buffer. */
glGenBuffers(1, &buf);
glBindBuffer(GL_TRANSFORM_FEEDBACK_BUFFER_EXT, buf);
glBufferData(GL_TRANSFORM_FEEDBACK_BUFFER_EXT,
BUF_FLOATS*sizeof(float), data, GL_STREAM_READ);
assert(glGetError() == 0);
if (range) {
puts("Testing BindBufferRange.");
piglit_BindBufferRange(GL_TRANSFORM_FEEDBACK_BUFFER_EXT,
0, buf, offset*sizeof(float), range*sizeof(float));
} else if (offset) {
puts("Testing BindBufferOffset.");
glBindBufferOffsetEXT(GL_TRANSFORM_FEEDBACK_BUFFER_EXT,
0, buf, offset*sizeof(float));
} else {
puts("Testing BindBufferBase.");
piglit_BindBufferBase(GL_TRANSFORM_FEEDBACK_BUFFER_EXT, 0, buf);
}
if (!range) {
range = MAX_RANGE;
} else {
range = MAX_RANGE/2; /* just one primitive is going to be written */
}
assert(glGetError() == 0);
glClearColor(0.2, 0.2, 0.2, 1.0);
glEnableClientState(GL_VERTEX_ARRAY);
}
