/*
* Copyright (c) 2007 Hypertriton, Inc.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
* USE OF THIS SOFTWARE EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/*
* Generic program class. This is the base class for vertex and fragment
* shader programs.
*/
#include
#include
#include
#include
static void
Init(void *_Nonnull obj)
{
SG_Program *prog = obj;
prog->flags = 0;
}
static int
Load(void *_Nonnull obj, AG_DataSource *_Nonnull buf, const AG_Version *_Nonnull ver)
{
SG_Program *prog = obj;
prog->flags = (Uint)AG_ReadUint32(buf);
return (0);
}
static int
Save(void *_Nonnull obj, AG_DataSource *_Nonnull buf)
{
SG_Program *prog = obj;
AG_WriteUint32(buf, (Uint32)prog->flags);
return (0);
}
/* Compile, verify and upload a program to the hardware. */
int
SG_ProgramInstall(SG_Program *prog, SG_View *view)
{
int rv;
AG_ObjectLock(prog);
if (SG_PROGRAM_OPS(prog)->install != NULL) {
rv = SG_PROGRAM_OPS(prog)->install(prog, view);
} else {
rv = 0;
}
AG_ObjectUnlock(prog);
return (rv);
}
/* Uninstall a program from the hardware. */
void
SG_ProgramDeinstall(SG_Program *prog, SG_View *view)
{
AG_ObjectLock(prog);
if (SG_PROGRAM_OPS(prog)->deinstall != NULL) {
SG_PROGRAM_OPS(prog)->deinstall(prog, view);
}
AG_ObjectUnlock(prog);
}
/* Bind a program to the current rendering context. */
void
SG_ProgramBind(SG_Program *prog, SG_View *view)
{
AG_ObjectLock(prog);
if (SG_PROGRAM_OPS(prog)->bind != NULL) {
SG_PROGRAM_OPS(prog)->bind(prog, view);
}
AG_ObjectUnlock(prog);
}
/* Unbind a program from the current rendering context. */
void
SG_ProgramUnbind(SG_Program *prog, SG_View *view)
{
AG_ObjectLock(prog);
if (SG_PROGRAM_OPS(prog)->unbind != NULL) {
SG_PROGRAM_OPS(prog)->unbind(prog, view);
}
AG_ObjectUnlock(prog);
}
AG_ObjectClass sgProgramClass = {
"SG_Program",
sizeof(SG_Program),
{ 0,0 },
Init,
NULL, /* free */
NULL, /* destroy */
Load,
Save,
NULL, /* edit */
};