From 70650d08fa3f4db2aea41e4ed47b271c3a3e7385 Mon Sep 17 00:00:00 2001 From: Ian Romanick Date: Tue, 18 Oct 2011 14:38:12 -0700 Subject: mesa: Add _mesa_uniform_{attach,detach_all}_driver_storage functions These functions are used to create and destroy the connections between a uniform and the storage used by the driver to hold its value. Signed-off-by: Ian Romanick Tested-by: Tom Stellard --- src/mesa/main/uniforms.c | 47 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 47 insertions(+) (limited to 'src/mesa/main/uniforms.c') diff --git a/src/mesa/main/uniforms.c b/src/mesa/main/uniforms.c index 49771336f79..13574ce9af0 100644 --- a/src/mesa/main/uniforms.c +++ b/src/mesa/main/uniforms.c @@ -75,6 +75,53 @@ _mesa_update_shader_textures_used(struct gl_program *prog) } } +/** + * Connect a piece of driver storage with a part of a uniform + * + * \param uni The uniform with which the storage will be associated + * \param element_stride Byte-stride between array elements. + * \sa gl_uniform_driver_storage::element_stride. + * \param vector_stride Byte-stride between vectors (in a matrix). + * \sa gl_uniform_driver_storage::vector_stride. + * \param format Conversion from native format to driver format + * required by the driver. + * \param data Location to dump the data. + */ +void +_mesa_uniform_attach_driver_storage(struct gl_uniform_storage *uni, + unsigned element_stride, + unsigned vector_stride, + enum gl_uniform_driver_format format, + void *data) +{ + uni->driver_storage = (struct gl_uniform_driver_storage*) + realloc(uni->driver_storage, + sizeof(struct gl_uniform_driver_storage) + * (uni->num_driver_storage + 1)); + + uni->driver_storage[uni->num_driver_storage].element_stride = element_stride; + uni->driver_storage[uni->num_driver_storage].vector_stride = vector_stride; + uni->driver_storage[uni->num_driver_storage].format = (uint8_t) format; + uni->driver_storage[uni->num_driver_storage].data = data; + + uni->num_driver_storage++; +} + +/** + * Sever all connections with all pieces of driver storage for all uniforms + * + * \warning + * This function does \b not release any of the \c data pointers + * previously passed in to \c _mesa_uniform_attach_driver_stoarge. + */ +void +_mesa_uniform_detach_all_driver_storage(struct gl_uniform_storage *uni) +{ + free(uni->driver_storage); + uni->driver_storage = NULL; + uni->num_driver_storage = 0; +} + void GLAPIENTRY _mesa_Uniform1fARB(GLint location, GLfloat v0) { -- cgit v1.2.3