-/* $Id: texobj.c,v 1.8 1999/11/11 01:22:28 brianp Exp $ */
/*
* Mesa 3-D graphics library
* Version: 3.3
*
- * Copyright (C) 1999 Brian Paul All Rights Reserved.
+ * Copyright (C) 1999-2000 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"),
{
struct gl_texture_object *obj;
- assert(dimensions <= 3);
+ ASSERT(dimensions <= 3);
+
+ obj = CALLOC_STRUCT(gl_texture_object);
- obj = (struct gl_texture_object *)
- calloc(1,sizeof(struct gl_texture_object));
if (obj) {
/* init the non-zero fields */
obj->RefCount = 1;
/* insert into linked list */
if (shared) {
+ _glthread_LOCK_MUTEX(shared->Mutex);
obj->Next = shared->TexObjectList;
shared->TexObjectList = obj;
+ _glthread_UNLOCK_MUTEX(shared->Mutex);
}
if (name > 0) {
/* insert into hash table */
- HashInsert(shared->TexObjects, name, obj);
+ _mesa_HashInsert(shared->TexObjects, name, obj);
}
}
return obj;
/* unlink t from the linked list */
if (shared) {
+ _glthread_LOCK_MUTEX(shared->Mutex);
tprev = NULL;
tcurr = shared->TexObjectList;
while (tcurr) {
tprev = tcurr;
tcurr = tcurr->Next;
}
+ _glthread_UNLOCK_MUTEX(shared->Mutex);
}
if (t->Name) {
/* remove from hash table */
- HashRemove(shared->TexObjects, t->Name);
+ _mesa_HashRemove(shared->TexObjects, t->Name);
}
/* free texture image */
GLuint i;
for (i=0;i<MAX_TEXTURE_LEVELS;i++) {
if (t->Image[i]) {
- gl_free_texture_image( t->Image[i] );
+ _mesa_free_texture_image( t->Image[i] );
}
}
}
t->Complete = GL_TRUE; /* be optimistic */
/* Always need level zero image */
- if (!t->Image[0] || !t->Image[0]->Data) {
+ if (!t->Image[0]) {
t->Complete = GL_FALSE;
return;
}
/* Test dimension-independent attributes */
for (i = minLevel; i <= maxLevel; i++) {
if (t->Image[i]) {
- if (!t->Image[i]->Data) {
- t->Complete = GL_FALSE;
- return;
- }
if (t->Image[i]->Format != t->Image[0]->Format) {
t->Complete = GL_FALSE;
return;
t->Complete = GL_FALSE;
return;
}
- if (!t->Image[i]->Data) {
- t->Complete = GL_FALSE;
- return;
- }
if (t->Image[i]->Width2 != width ) {
t->Complete = GL_FALSE;
return;
}
+_glthread_DECLARE_STATIC_MUTEX(GenTexturesLock);
+
/*
* Execute glGenTextures
return;
}
- first = HashFindFreeKeyBlock(ctx->Shared->TexObjects, n);
+
+ /*
+ * This must be atomic (generation and allocation of texture IDs)
+ */
+ _glthread_LOCK_MUTEX(GenTexturesLock);
+
+ first = _mesa_HashFindFreeKeyBlock(ctx->Shared->TexObjects, n);
/* Return the texture names */
for (i=0;i<n;i++) {
GLuint dims = 0;
(void) gl_alloc_texture_object(ctx->Shared, name, dims);
}
+
+ _glthread_UNLOCK_MUTEX(GenTexturesLock);
}
struct gl_texture_object *t;
if (texName[i]>0) {
t = (struct gl_texture_object *)
- HashLookup(ctx->Shared->TexObjects, texName[i]);
+ _mesa_HashLookup(ctx->Shared->TexObjects, texName[i]);
if (t) {
+ /* First check if this texture is currently bound.
+ * If so, unbind it and decrement the reference count.
+ */
GLuint u;
- for (u=0; u<MAX_TEXTURE_UNITS; u++) {
+ for (u = 0; u < MAX_TEXTURE_UNITS; u++) {
struct gl_texture_unit *unit = &ctx->Texture.Unit[u];
GLuint d;
for (d = 1 ; d <= 3 ; d++) {
- if (unit->CurrentD[d]==t) {
+ if (unit->CurrentD[d] == t) {
unit->CurrentD[d] = ctx->Shared->DefaultD[d];
ctx->Shared->DefaultD[d]->RefCount++;
t->RefCount--;
- assert( t->RefCount >= 0 );
+ ASSERT( t->RefCount >= 0 );
}
}
}
- /* tell device driver to delete texture */
- if (ctx->Driver.DeleteTexture) {
- (*ctx->Driver.DeleteTexture)( ctx, t );
- }
-
- if (t->RefCount==0) {
+ /* Decrement reference count and delete if zero */
+ t->RefCount--;
+ ASSERT( t->RefCount >= 0 );
+ if (t->RefCount == 0) {
+ if (ctx->Driver.DeleteTexture)
+ (*ctx->Driver.DeleteTexture)( ctx, t );
gl_free_texture_object(ctx->Shared, t);
}
}
ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx, "glBindTexture");
- dim = (GLuint) (target - GL_TEXTURE_1D);
-
- if (dim < 0 || dim > 2) {
- gl_error( ctx, GL_INVALID_ENUM, "glBindTexture" );
- return;
+ switch (target) {
+ case GL_TEXTURE_1D:
+ dim = 1;
+ break;
+ case GL_TEXTURE_2D:
+ dim = 2;
+ break;
+ case GL_TEXTURE_3D:
+ dim = 3;
+ break;
+ default:
+ gl_error( ctx, GL_INVALID_ENUM, "glBindTexture(target)" );
+ return;
}
- dim++;
oldTexObj = texUnit->CurrentD[dim];
if (oldTexObj->Name == texName)
if (texName == 0)
newTexObj = ctx->Shared->DefaultD[dim];
else {
- struct HashTable *hash = ctx->Shared->TexObjects;
- newTexObj = (struct gl_texture_object *) HashLookup(hash, texName);
+ struct _mesa_HashTable *hash = ctx->Shared->TexObjects;
+ newTexObj = (struct gl_texture_object *) _mesa_HashLookup(hash, texName);
if (!newTexObj)
newTexObj = gl_alloc_texture_object(ctx->Shared, texName, dim);
if (newTexObj->Dimensions != dim) {
if (newTexObj->Dimensions) {
+ /* the named texture object's dimensions don't match the target */
gl_error( ctx, GL_INVALID_OPERATION, "glBindTexture" );
return;
}
struct gl_texture_object *t;
if (texName[i]>0) {
t = (struct gl_texture_object *)
- HashLookup(ctx->Shared->TexObjects, texName[i]);
+ _mesa_HashLookup(ctx->Shared->TexObjects, texName[i]);
if (t) {
t->Priority = CLAMP( priorities[i], 0.0F, 1.0F );
return GL_FALSE;
}
t = (struct gl_texture_object *)
- HashLookup(ctx->Shared->TexObjects, texName[i]);
+ _mesa_HashLookup(ctx->Shared->TexObjects, texName[i]);
if (t) {
if (ctx->Driver.IsTextureResident)
residences[i] = ctx->Driver.IsTextureResident( ctx, t );
GET_CURRENT_CONTEXT(ctx);
ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH_WITH_RETVAL(ctx, "glIsTextures",
GL_FALSE);
- if (texture>0 && HashLookup(ctx->Shared->TexObjects, texture)) {
+ if (texture>0 && _mesa_HashLookup(ctx->Shared->TexObjects, texture)) {
return GL_TRUE;
}
else {
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