354              GLsizei n, const GLenum *buffers, const char *caller)  in draw_buffers()  argument
389        (n != 1 || (buffers[0] != GL_NONE && buffers[0] != GL_BACK))) {  in draw_buffers()
396       destMask[output] = draw_buffer_enum_to_bitmask(ctx, buffers[output]);  in draw_buffers()
404                      caller, _mesa_enum_to_string(buffers[output]));  in draw_buffers()
429              buffers[output] == GL_BACK) {  in draw_buffers()
437                         caller, _mesa_enum_to_string(buffers[output]));  in draw_buffers()
452           buffers[output] != GL_NONE &&  in draw_buffers()
453           (buffers[output] < GL_COLOR_ATTACHMENT0 ||  in draw_buffers()
454            buffers[output] >= GL_COLOR_ATTACHMENT0 + ctx->Const.MaxColorAttachments)) {  in draw_buffers()
459       if (buffers[output] == GL_NONE) {  in draw_buffers()
471          if (_mesa_is_user_fbo(fb) && buffers[output] >=  in draw_buffers()
493                         caller, _mesa_enum_to_string(buffers[output]));  in draw_buffers()
503              buffers[output] != GL_NONE &&  in draw_buffers()
504              buffers[output] != GL_COLOR_ATTACHMENT0 + output) {  in draw_buffers()
507                         caller, _mesa_enum_to_string(buffers[output]));  in draw_buffers()
519                         caller, _mesa_enum_to_string(buffers[output]));  in draw_buffers()
529    _mesa_drawbuffers(ctx, fb, n, buffers, destMask);  in draw_buffers()
539          ctx->Driver.DrawBuffers(ctx, n, buffers);  in draw_buffers()
541          ctx->Driver.DrawBuffer(ctx, n > 0 ? buffers[0] : GL_NONE);  in draw_buffers()
547 _mesa_DrawBuffers(GLsizei n, const GLenum *buffers)  in _mesa_DrawBuffers()  argument
550    draw_buffers(ctx, ctx->DrawBuffer, n, buffers, "glDrawBuffers");  in _mesa_DrawBuffers()
609                   GLuint n, const GLenum *buffers, const GLbitfield *destMask)  in _mesa_drawbuffers()  argument
619          mask[output] = draw_buffer_enum_to_bitmask(ctx, buffers[output]);  in _mesa_drawbuffers()
641       fb->ColorDrawBuffer[0] = buffers[0];  in _mesa_drawbuffers()
663          fb->ColorDrawBuffer[buf] = buffers[buf];  in _mesa_drawbuffers()