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); }