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/*
* Mesa 3-D graphics library
* Version: 6.6
*
* Copyright (C) 2006 Brian Paul All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
* AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
/**
* \file slang_link.c
* slang linker
* \author Michal Krol
*/
#include "imports.h"
#include "context.h"
#include "hash.h"
#include "macros.h"
#include "program.h"
#include "shaderobjects.h"
#include "slang_link.h"
#define RELEASE_GENERIC(x)\
(**x)._unknown.Release ((struct gl2_unknown_intf **) (x))
#define RELEASE_CONTAINER(x)\
(**x)._generic._unknown.Release ((struct gl2_unknown_intf **) (x))
#define RELEASE_PROGRAM(x)\
(**x)._container._generic._unknown.Release ((struct gl2_unknown_intf **) (x))
#define RELEASE_SHADER(x)\
(**x)._generic._unknown.Release ((struct gl2_unknown_intf **) (x))
static struct gl2_unknown_intf **
lookup_handle(GLcontext * ctx, GLhandleARB handle, enum gl2_uiid uiid,
const char *function)
{
struct gl2_unknown_intf **unk;
/*
* Note: _mesa_HashLookup() requires non-zero input values, so the
* passed-in handle value must be checked beforehand.
*/
if (handle == 0) {
_mesa_error(ctx, GL_INVALID_VALUE, function);
return NULL;
}
_glthread_LOCK_MUTEX(ctx->Shared->Mutex);
unk = (struct gl2_unknown_intf **) _mesa_HashLookup(ctx->Shared->GL2Objects,
handle);
_glthread_UNLOCK_MUTEX(ctx->Shared->Mutex);
if (unk == NULL) {
_mesa_error(ctx, GL_INVALID_VALUE, function);
}
else {
unk = (**unk).QueryInterface(unk, uiid);
if (unk == NULL)
_mesa_error(ctx, GL_INVALID_OPERATION, function);
}
return unk;
}
#define GET_GENERIC(x, handle, function)\
struct gl2_generic_intf **x = (struct gl2_generic_intf **)\
lookup_handle (ctx, handle, UIID_GENERIC, function);
#define GET_CONTAINER(x, handle, function)\
struct gl2_container_intf **x = (struct gl2_container_intf **)\
lookup_handle (ctx, handle, UIID_CONTAINER, function);
#define GET_PROGRAM(x, handle, function)\
struct gl2_program_intf **x = (struct gl2_program_intf **)\
lookup_handle (ctx, handle, UIID_PROGRAM, function);
#define GET_SHADER(x, handle, function)\
struct gl2_shader_intf **x = (struct gl2_shader_intf **)\
lookup_handle (ctx, handle, UIID_SHADER, function);
static void
prelink(GLhandleARB programObj, struct gl_linked_program *linked)
{
GET_CURRENT_CONTEXT(ctx);
linked->VertexProgram = NULL;
linked->FragmentProgram = NULL;
if (programObj != 0) {
GET_PROGRAM(program, programObj, "glUseProgramObjectARB(program)");
if (program == NULL)
return;
/* XXX terrible hack to find the real vertex/fragment programs */
{
GLuint handle;
GLsizei cnt, i;
cnt = (**program)._container.GetAttachedCount((struct gl2_container_intf **) (program));
for (i = 0; i < cnt; i++) {
struct gl2_generic_intf **x
= (**program)._container.GetAttached((struct gl2_container_intf **) program, i);
handle = (**x).GetName(x);
{
struct gl_program *prog;
GET_SHADER(sha, handle, "foo");
if (sha && (*sha)->Program) {
prog = (*sha)->Program;
if (prog->Target == GL_VERTEX_PROGRAM_ARB)
linked->VertexProgram = (struct gl_vertex_program *) prog;
else if (prog->Target == GL_FRAGMENT_PROGRAM_ARB)
linked->FragmentProgram = (struct gl_fragment_program *) prog;
}
}
#if 0
if (linked->VertexProgram)
printf("Found vert prog %p %d\n",
linked->VertexProgram,
linked->VertexProgram->Base.NumInstructions);
if (linked->FragmentProgram)
printf("Found frag prog %p %d\n",
linked->FragmentProgram,
linked->FragmentProgram->Base.NumInstructions);
#endif
RELEASE_GENERIC(x);
}
}
}
}
void
_slang_link2(GLcontext *ctx,
GLhandleARB programObj,
struct gl_linked_program *linked)
{
struct gl_vertex_program *vertProg;
struct gl_fragment_program *fragProg;
prelink(programObj, linked);
vertProg = linked->VertexProgram;
fragProg = linked->FragmentProgram;
/* free old linked data, if any */
if (linked->NumUniforms > 0) {
GLuint i;
for (i = 0; i < linked->NumUniforms; i++) {
_mesa_free((char *) linked->Uniforms[i].Name);
linked->Uniforms[i].Name = NULL;
linked->Uniforms[i].Value = NULL;
}
linked->NumUniforms = 0;
}
/*
* Find uniforms.
* XXX what about dups?
*/
if (vertProg) {
GLuint i;
for (i = 0; i < vertProg->Base.Parameters->NumParameters; i++) {
struct gl_program_parameter *p
= vertProg->Base.Parameters->Parameters + i;
if (p->Name) {
struct gl_uniform *u = linked->Uniforms + linked->NumUniforms;
u->Name = _mesa_strdup(p->Name);
u->Value = &vertProg->Base.Parameters->ParameterValues[i][0];
linked->NumUniforms++;
assert(linked->NumUniforms < MAX_UNIFORMS);
}
}
}
if (fragProg) {
GLuint i;
for (i = 0; i < fragProg->Base.Parameters->NumParameters; i++) {
struct gl_program_parameter *p
= fragProg->Base.Parameters->Parameters + i;
if (p->Name) {
struct gl_uniform *u = linked->Uniforms + linked->NumUniforms;
u->Name = _mesa_strdup(p->Name);
u->Value = &fragProg->Base.Parameters->ParameterValues[i][0];
linked->NumUniforms++;
assert(linked->NumUniforms < MAX_UNIFORMS);
}
}
}
/* For varying:
* scan both programs for varyings, rewrite programs so they agree
* on locations of varyings.
*/
/**
* Linking should _copy_ the vertex and fragment shader code,
* rewriting varying references as we go along...
*/
linked->LinkStatus = (vertProg && fragProg);
}
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