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mesa: Add _mesa_uniform_{attach,detach_all}_driver_storage functions

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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 <ian.d.romanick@intel.com>
Tested-by: Tom Stellard <thomas.stellard@amd.com>
This commit is contained in:
Ian Romanick 2011-10-18 14:38:12 -07:00
parent 9516182e80
commit 70650d08fa
3 changed files with 59 additions and 0 deletions
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1
src/mesa/main/uniform_query.cpp
View file

@ -25,6 +25,7 @@
#include "main/core.h"
#include "main/context.h"
#include "ir.h"
#include "ir_uniform.h"
#include "../glsl/program.h"
#include "../glsl/ir_uniform.h"

47
src/mesa/main/uniforms.c
View file

@ -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)
{

11
src/mesa/main/uniforms.h
View file

@ -27,6 +27,7 @@
#include "glheader.h"
#include "program/prog_parameter.h"
#include "../glsl/ir_uniform.h"
struct gl_program;
struct _glapi_table;
@ -188,6 +189,16 @@ void
_mesa_get_uniform(struct gl_context *ctx, GLuint program, GLint location,
GLsizei bufSize, GLenum returnType, GLvoid *paramsOut);
extern void
_mesa_uniform_attach_driver_storage(struct gl_uniform_storage *,
unsigned element_stride,
unsigned vector_stride,
enum gl_uniform_driver_format format,
void *data);
extern void
_mesa_uniform_detach_all_driver_storage(struct gl_uniform_storage *uni);
extern void
_mesa_propagate_uniforms_to_driver_storage(struct gl_uniform_storage *uni,
unsigned array_index,