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;
}
/**
* Generate a full program pipeline using the shader code provided in
* the \a sources array.
*/
static GLuint
generate_program_v(const struct grid_info grid, const char **sources)
{
const unsigned basic_stages = (GL_FRAGMENT_SHADER_BIT |
GL_VERTEX_SHADER_BIT);
const unsigned tess_stages = (GL_TESS_CONTROL_SHADER_BIT |
GL_TESS_EVALUATION_SHADER_BIT);
const unsigned graphic_stages = (basic_stages | tess_stages |
GL_GEOMETRY_SHADER_BIT);
const unsigned stages =
(grid.stages |
/* Make a full pipeline if a tesselation shader was
* requested. */
(grid.stages & tess_stages ? graphic_stages : 0) |
/* Make sure there is always a vertex and fragment
* shader if we're doing graphics. */
(grid.stages & graphic_stages ? basic_stages : 0));
GLuint prog = glCreateProgram();
const struct image_stage_info *stage;
for (stage = known_image_stages(); stage->stage; ++stage) {
if (stages & stage->bit) {
char *source = generate_stage_source(
grid, stage->stage,
sources[get_stage_idx(stage)]);
GLuint shader = piglit_compile_shader_text_nothrow(
stage->stage, source);
free(source);
if (!shader) {
glDeleteProgram(prog);
return 0;
}
glAttachShader(prog, shader);
glDeleteShader(shader);
}
}
glBindAttribLocation(prog, PIGLIT_ATTRIB_POS, "piglit_vertex");
glBindAttribLocation(prog, PIGLIT_ATTRIB_TEX, "piglit_texcoord");
glLinkProgram(prog);
if (!piglit_link_check_status(prog)) {
glDeleteProgram(prog);
return 0;
}
return prog;
}
