void cogl_program_attach_shader (CoglHandle program_handle, CoglHandle shader_handle) { CoglProgram *program; CoglShader *shader; _COGL_GET_CONTEXT (ctx, NO_RETVAL); if (!cogl_is_program (program_handle) || !cogl_is_shader (shader_handle)) return; program = _cogl_program_pointer_from_handle (program_handle); shader = _cogl_shader_pointer_from_handle (shader_handle); /* Only one shader is allowed if the type is ARBfp */ if (shader->language == COGL_SHADER_LANGUAGE_ARBFP) g_return_if_fail (program->attached_shaders == NULL); else if (shader->language == COGL_SHADER_LANGUAGE_GLSL) g_return_if_fail (_cogl_program_get_language (program) == COGL_SHADER_LANGUAGE_GLSL); program->attached_shaders = g_slist_prepend (program->attached_shaders, cogl_handle_ref (shader_handle)); program->age++; }
CoglShaderType cogl_shader_get_type (CoglHandle handle) { GLint type; CoglShader *shader; if (!cogl_is_shader (handle)) { g_warning ("Non shader handle type passed to cogl_shader_get_type"); return COGL_SHADER_TYPE_VERTEX; } shader = _cogl_shader_pointer_from_handle (handle); GE (glGetShaderiv (shader->gl_handle, GL_SHADER_TYPE, &type)); if (type == GL_VERTEX_SHADER) return COGL_SHADER_TYPE_VERTEX; else if (type == GL_FRAGMENT_SHADER) return COGL_SHADER_TYPE_VERTEX; else { g_warning ("Unexpected shader type 0x%08lX", (unsigned long)type); return COGL_SHADER_TYPE_VERTEX; } }
void cogl_shader_compile (CoglHandle handle) { CoglShader *shader; _COGL_GET_CONTEXT (ctx, NO_RETVAL); if (!cogl_is_shader (handle)) return; shader = _cogl_shader_pointer_from_handle (handle); glCompileShaderARB (shader->gl_handle); }
void cogl_shader_source (CoglHandle handle, const gchar *source) { CoglShader *shader; _COGL_GET_CONTEXT (ctx, NO_RETVAL); if (!cogl_is_shader (handle)) return; shader = _cogl_shader_pointer_from_handle (handle); glShaderSourceARB (shader->gl_handle, 1, &source, NULL); }
void cogl_shader_get_parameteriv (CoglHandle handle, COGLenum pname, COGLint *dest) { CoglShader *shader; _COGL_GET_CONTEXT (ctx, NO_RETVAL); if (!cogl_is_shader (handle)) return; shader = _cogl_shader_pointer_from_handle (handle); glGetObjectParameterivARB (shader->gl_handle, pname, dest); }
void cogl_program_attach_shader (CoglHandle program_handle, CoglHandle shader_handle) { CoglProgram *program; CoglShader *shader; _COGL_GET_CONTEXT (ctx, NO_RETVAL); if (!cogl_is_program (program_handle) || !cogl_is_shader (shader_handle)) return; program = _cogl_program_pointer_from_handle (program_handle); shader = _cogl_shader_pointer_from_handle (shader_handle); glAttachObject (program->gl_handle, shader->gl_handle); }
void cogl_shader_get_info_log (CoglHandle handle, guint size, gchar *buffer) { CoglShader *shader; COGLint len; _COGL_GET_CONTEXT (ctx, NO_RETVAL); if (!cogl_is_shader (handle)) return; shader = _cogl_shader_pointer_from_handle (handle); glGetInfoLogARB (shader->gl_handle, size-1, &len, buffer); buffer[len]='\0'; }
gboolean cogl_shader_is_compiled (CoglHandle handle) { GLint status; CoglShader *shader; if (!cogl_is_shader (handle)) return FALSE; shader = _cogl_shader_pointer_from_handle (handle); GE (glGetShaderiv (shader->gl_handle, GL_COMPILE_STATUS, &status)); if (status == GL_TRUE) return TRUE; else return FALSE; }
gchar * cogl_shader_get_info_log (CoglHandle handle) { CoglShader *shader; char buffer[512]; int len = 0; _COGL_GET_CONTEXT (ctx, NULL); if (!cogl_is_shader (handle)) return NULL; shader = _cogl_shader_pointer_from_handle (handle); glGetShaderInfoLog (shader->gl_handle, 511, &len, buffer); buffer[len] = '\0'; return g_strdup (buffer); }