diff options
Diffstat (limited to 'src/mesa/main/arrayobj.c')
| -rw-r--r-- | src/mesa/main/arrayobj.c | 442 |
1 files changed, 293 insertions, 149 deletions
diff --git a/src/mesa/main/arrayobj.c b/src/mesa/main/arrayobj.c index f3f482f8c8..fd35d4e38c 100644 --- a/src/mesa/main/arrayobj.c +++ b/src/mesa/main/arrayobj.c @@ -1,9 +1,10 @@ /* * Mesa 3-D graphics library - * Version: 7.2 + * Version: 7.6 * * Copyright (C) 1999-2008 Brian Paul All Rights Reserved. * (C) Copyright IBM Corporation 2006 + * Copyright (C) 2009 VMware, Inc. 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"), @@ -46,6 +47,7 @@ #include "bufferobj.h" #endif #include "arrayobj.h" +#include "macros.h" #include "glapi/dispatch.h" @@ -61,10 +63,38 @@ static INLINE struct gl_array_object * lookup_arrayobj(GLcontext *ctx, GLuint id) { - return (id == 0) - ? NULL - : (struct gl_array_object *) _mesa_HashLookup(ctx->Shared->ArrayObjects, - id); + if (id == 0) + return NULL; + else + return (struct gl_array_object *) + _mesa_HashLookup(ctx->Array.Objects, id); +} + + +/** + * For all the vertex arrays in the array object, unbind any pointers + * to any buffer objects (VBOs). + * This is done just prior to array object destruction. + */ +static void +unbind_array_object_vbos(GLcontext *ctx, struct gl_array_object *obj) +{ + GLuint i; + + _mesa_reference_buffer_object(ctx, &obj->Vertex.BufferObj, NULL); + _mesa_reference_buffer_object(ctx, &obj->Weight.BufferObj, NULL); + _mesa_reference_buffer_object(ctx, &obj->Normal.BufferObj, NULL); + _mesa_reference_buffer_object(ctx, &obj->Color.BufferObj, NULL); + _mesa_reference_buffer_object(ctx, &obj->SecondaryColor.BufferObj, NULL); + _mesa_reference_buffer_object(ctx, &obj->FogCoord.BufferObj, NULL); + _mesa_reference_buffer_object(ctx, &obj->Index.BufferObj, NULL); + _mesa_reference_buffer_object(ctx, &obj->EdgeFlag.BufferObj, NULL); + + for (i = 0; i < Elements(obj->TexCoord); i++) + _mesa_reference_buffer_object(ctx, &obj->TexCoord[i].BufferObj, NULL); + + for (i = 0; i < Elements(obj->VertexAttrib); i++) + _mesa_reference_buffer_object(ctx, &obj->VertexAttrib[i].BufferObj,NULL); } @@ -94,10 +124,93 @@ void _mesa_delete_array_object( GLcontext *ctx, struct gl_array_object *obj ) { (void) ctx; + unbind_array_object_vbos(ctx, obj); + _glthread_DESTROY_MUTEX(obj->Mutex); _mesa_free(obj); } +/** + * Set ptr to arrayObj w/ reference counting. + */ +void +_mesa_reference_array_object(GLcontext *ctx, + struct gl_array_object **ptr, + struct gl_array_object *arrayObj) +{ + if (*ptr == arrayObj) + return; + + if (*ptr) { + /* Unreference the old array object */ + GLboolean deleteFlag = GL_FALSE; + struct gl_array_object *oldObj = *ptr; + + _glthread_LOCK_MUTEX(oldObj->Mutex); + ASSERT(oldObj->RefCount > 0); + oldObj->RefCount--; +#if 0 + printf("ArrayObj %p %d DECR to %d\n", + (void *) oldObj, oldObj->Name, oldObj->RefCount); +#endif + deleteFlag = (oldObj->RefCount == 0); + _glthread_UNLOCK_MUTEX(oldObj->Mutex); + + if (deleteFlag) { + ASSERT(ctx->Driver.DeleteArrayObject); + ctx->Driver.DeleteArrayObject(ctx, oldObj); + } + + *ptr = NULL; + } + ASSERT(!*ptr); + + if (arrayObj) { + /* reference new array object */ + _glthread_LOCK_MUTEX(arrayObj->Mutex); + if (arrayObj->RefCount == 0) { + /* this array's being deleted (look just above) */ + /* Not sure this can every really happen. Warn if it does. */ + _mesa_problem(NULL, "referencing deleted array object"); + *ptr = NULL; + } + else { + arrayObj->RefCount++; +#if 0 + printf("ArrayObj %p %d INCR to %d\n", + (void *) arrayObj, arrayObj->Name, arrayObj->RefCount); +#endif + *ptr = arrayObj; + } + _glthread_UNLOCK_MUTEX(arrayObj->Mutex); + } +} + + + +static void +init_array(GLcontext *ctx, + struct gl_client_array *array, GLint size, GLint type) +{ + array->Size = size; + array->Type = type; + array->Format = GL_RGBA; /* only significant for GL_EXT_vertex_array_bgra */ + array->Stride = 0; + array->StrideB = 0; + array->Ptr = NULL; + array->Enabled = GL_FALSE; + array->Normalized = GL_FALSE; +#if FEATURE_ARB_vertex_buffer_object + /* Vertex array buffers */ + _mesa_reference_buffer_object(ctx, &array->BufferObj, + ctx->Shared->NullBufferObj); +#endif +} + + +/** + * Initialize a gl_array_object's arrays. + */ void _mesa_initialize_array_object( GLcontext *ctx, struct gl_array_object *obj, @@ -107,87 +220,27 @@ _mesa_initialize_array_object( GLcontext *ctx, obj->Name = name; - /* Vertex arrays */ - obj->Vertex.Size = 4; - obj->Vertex.Type = GL_FLOAT; - obj->Vertex.Stride = 0; - obj->Vertex.StrideB = 0; - obj->Vertex.Ptr = NULL; - obj->Vertex.Enabled = GL_FALSE; - obj->Normal.Type = GL_FLOAT; - obj->Normal.Stride = 0; - obj->Normal.StrideB = 0; - obj->Normal.Ptr = NULL; - obj->Normal.Enabled = GL_FALSE; - obj->Color.Size = 4; - obj->Color.Type = GL_FLOAT; - obj->Color.Stride = 0; - obj->Color.StrideB = 0; - obj->Color.Ptr = NULL; - obj->Color.Enabled = GL_FALSE; - obj->SecondaryColor.Size = 4; - obj->SecondaryColor.Type = GL_FLOAT; - obj->SecondaryColor.Stride = 0; - obj->SecondaryColor.StrideB = 0; - obj->SecondaryColor.Ptr = NULL; - obj->SecondaryColor.Enabled = GL_FALSE; - obj->FogCoord.Size = 1; - obj->FogCoord.Type = GL_FLOAT; - obj->FogCoord.Stride = 0; - obj->FogCoord.StrideB = 0; - obj->FogCoord.Ptr = NULL; - obj->FogCoord.Enabled = GL_FALSE; - obj->Index.Type = GL_FLOAT; - obj->Index.Stride = 0; - obj->Index.StrideB = 0; - obj->Index.Ptr = NULL; - obj->Index.Enabled = GL_FALSE; - for (i = 0; i < MAX_TEXTURE_COORD_UNITS; i++) { - obj->TexCoord[i].Size = 4; - obj->TexCoord[i].Type = GL_FLOAT; - obj->TexCoord[i].Stride = 0; - obj->TexCoord[i].StrideB = 0; - obj->TexCoord[i].Ptr = NULL; - obj->TexCoord[i].Enabled = GL_FALSE; + _glthread_INIT_MUTEX(obj->Mutex); + obj->RefCount = 1; + + /* Init the individual arrays */ + init_array(ctx, &obj->Vertex, 4, GL_FLOAT); + init_array(ctx, &obj->Weight, 1, GL_FLOAT); + init_array(ctx, &obj->Normal, 3, GL_FLOAT); + init_array(ctx, &obj->Color, 4, GL_FLOAT); + init_array(ctx, &obj->SecondaryColor, 4, GL_FLOAT); + init_array(ctx, &obj->FogCoord, 1, GL_FLOAT); + init_array(ctx, &obj->Index, 1, GL_FLOAT); + for (i = 0; i < Elements(obj->TexCoord); i++) { + init_array(ctx, &obj->TexCoord[i], 4, GL_FLOAT); } - obj->EdgeFlag.Stride = 0; - obj->EdgeFlag.StrideB = 0; - obj->EdgeFlag.Ptr = NULL; - obj->EdgeFlag.Enabled = GL_FALSE; - for (i = 0; i < VERT_ATTRIB_MAX; i++) { - obj->VertexAttrib[i].Size = 4; - obj->VertexAttrib[i].Type = GL_FLOAT; - obj->VertexAttrib[i].Stride = 0; - obj->VertexAttrib[i].StrideB = 0; - obj->VertexAttrib[i].Ptr = NULL; - obj->VertexAttrib[i].Enabled = GL_FALSE; - obj->VertexAttrib[i].Normalized = GL_FALSE; + init_array(ctx, &obj->EdgeFlag, 1, GL_BOOL); + for (i = 0; i < Elements(obj->VertexAttrib); i++) { + init_array(ctx, &obj->VertexAttrib[i], 4, GL_FLOAT); } #if FEATURE_point_size_array - obj->PointSize.Type = GL_FLOAT; - obj->PointSize.Stride = 0; - obj->PointSize.StrideB = 0; - obj->PointSize.Ptr = NULL; - obj->PointSize.Enabled = GL_FALSE; - obj->PointSize.BufferObj = ctx->Array.NullBufferObj; -#endif - -#if FEATURE_ARB_vertex_buffer_object - /* Vertex array buffers */ - obj->Vertex.BufferObj = ctx->Array.NullBufferObj; - obj->Normal.BufferObj = ctx->Array.NullBufferObj; - obj->Color.BufferObj = ctx->Array.NullBufferObj; - obj->SecondaryColor.BufferObj = ctx->Array.NullBufferObj; - obj->FogCoord.BufferObj = ctx->Array.NullBufferObj; - obj->Index.BufferObj = ctx->Array.NullBufferObj; - for (i = 0; i < MAX_TEXTURE_COORD_UNITS; i++) { - obj->TexCoord[i].BufferObj = ctx->Array.NullBufferObj; - } - obj->EdgeFlag.BufferObj = ctx->Array.NullBufferObj; - for (i = 0; i < VERT_ATTRIB_MAX; i++) { - obj->VertexAttrib[i].BufferObj = ctx->Array.NullBufferObj; - } + init_array(ctx, &obj->PointSize, 1, GL_FLOAT); #endif } @@ -195,12 +248,12 @@ _mesa_initialize_array_object( GLcontext *ctx, /** * Add the given array object to the array object pool. */ -void -_mesa_save_array_object( GLcontext *ctx, struct gl_array_object *obj ) +static void +save_array_object( GLcontext *ctx, struct gl_array_object *obj ) { if (obj->Name > 0) { /* insert into hash table */ - _mesa_HashInsert(ctx->Shared->ArrayObjects, obj->Name, obj); + _mesa_HashInsert(ctx->Array.Objects, obj->Name, obj); } } @@ -209,22 +262,90 @@ _mesa_save_array_object( GLcontext *ctx, struct gl_array_object *obj ) * Remove the given array object from the array object pool. * Do not deallocate the array object though. */ -void -_mesa_remove_array_object( GLcontext *ctx, struct gl_array_object *obj ) +static void +remove_array_object( GLcontext *ctx, struct gl_array_object *obj ) { if (obj->Name > 0) { /* remove from hash table */ - _mesa_HashRemove(ctx->Shared->ArrayObjects, obj->Name); + _mesa_HashRemove(ctx->Array.Objects, obj->Name); } } + +/** + * Compute the index of the last array element that can be safely accessed + * in a vertex array. We can really only do this when the array lives in + * a VBO. + * The array->_MaxElement field will be updated. + * Later in glDrawArrays/Elements/etc we can do some bounds checking. + */ static void -unbind_buffer_object( GLcontext *ctx, struct gl_buffer_object *bufObj ) +compute_max_element(struct gl_client_array *array) { - if (bufObj != ctx->Array.NullBufferObj) { - _mesa_reference_buffer_object(ctx, &bufObj, NULL); + if (array->BufferObj->Name) { + /* Compute the max element we can access in the VBO without going + * out of bounds. + */ + array->_MaxElement = ((GLsizeiptrARB) array->BufferObj->Size + - (GLsizeiptrARB) array->Ptr + array->StrideB + - array->_ElementSize) / array->StrideB; + if (0) + _mesa_printf("%s Object %u Size %u MaxElement %u\n", + __FUNCTION__, + array->BufferObj->Name, + (GLuint) array->BufferObj->Size, + array->_MaxElement); } + else { + /* user-space array, no idea how big it is */ + array->_MaxElement = 2 * 1000 * 1000 * 1000; /* just a big number */ + } +} + + +/** + * Helper for update_arrays(). + * \return min(current min, array->_MaxElement). + */ +static GLuint +update_min(GLuint min, struct gl_client_array *array) +{ + compute_max_element(array); + if (array->Enabled) + return MIN2(min, array->_MaxElement); + else + return min; +} + + +/** + * Examine vertex arrays to update the gl_array_object::_MaxElement field. + */ +void +_mesa_update_array_object_max_element(GLcontext *ctx, + struct gl_array_object *arrayObj) +{ + GLuint i, min = ~0; + + min = update_min(min, &arrayObj->Vertex); + min = update_min(min, &arrayObj->Weight); + min = update_min(min, &arrayObj->Normal); + min = update_min(min, &arrayObj->Color); + min = update_min(min, &arrayObj->SecondaryColor); + min = update_min(min, &arrayObj->FogCoord); + min = update_min(min, &arrayObj->Index); + min = update_min(min, &arrayObj->EdgeFlag); +#if FEATURE_point_size_array + min = update_min(min, &arrayObj->PointSize); +#endif + for (i = 0; i < ctx->Const.MaxTextureCoordUnits; i++) + min = update_min(min, &arrayObj->TexCoord[i]); + for (i = 0; i < Elements(arrayObj->VertexAttrib); i++) + min = update_min(min, &arrayObj->VertexAttrib[i]); + + /* _MaxElement is one past the last legal array element */ + arrayObj->_MaxElement = min; } @@ -232,18 +353,15 @@ unbind_buffer_object( GLcontext *ctx, struct gl_buffer_object *bufObj ) /* API Functions */ /**********************************************************************/ + /** - * Bind a new array. - * - * \todo - * The binding could be done more efficiently by comparing the non-NULL - * pointers in the old and new objects. The only arrays that are "dirty" are - * the ones that are non-NULL in either object. + * Helper for _mesa_BindVertexArray() and _mesa_BindVertexArrayAPPLE(). + * \param genRequired specifies behavour when id was not generated with + * glGenVertexArrays(). */ -void GLAPIENTRY -_mesa_BindVertexArrayAPPLE( GLuint id ) +static void +bind_vertex_array(GLcontext *ctx, GLuint id, GLboolean genRequired) { - GET_CURRENT_CONTEXT(ctx); struct gl_array_object * const oldObj = ctx->Array.ArrayObj; struct gl_array_object *newObj = NULL; ASSERT_OUTSIDE_BEGIN_END(ctx); @@ -254,7 +372,7 @@ _mesa_BindVertexArrayAPPLE( GLuint id ) return; /* rebinding the same array object- no change */ /* - * Get pointer to new array object (newBufObj) + * Get pointer to new array object (newObj) */ if (id == 0) { /* The spec says there is no array object named 0, but we use @@ -266,27 +384,58 @@ _mesa_BindVertexArrayAPPLE( GLuint id ) /* non-default array object */ newObj = lookup_arrayobj(ctx, id); if (!newObj) { - /* If this is a new array object id, allocate an array object now. - */ + if (genRequired) { + _mesa_error(ctx, GL_INVALID_OPERATION, "glBindVertexArray(id)"); + return; + } + /* For APPLE version, generate a new array object now */ newObj = (*ctx->Driver.NewArrayObject)(ctx, id); if (!newObj) { _mesa_error(ctx, GL_OUT_OF_MEMORY, "glBindVertexArrayAPPLE"); return; } - _mesa_save_array_object(ctx, newObj); + save_array_object(ctx, newObj); } } - ctx->NewState |= _NEW_ARRAY; ctx->Array.NewState |= _NEW_ARRAY_ALL; - ctx->Array.ArrayObj = newObj; - + _mesa_reference_array_object(ctx, &ctx->Array.ArrayObj, newObj); /* Pass BindVertexArray call to device driver */ if (ctx->Driver.BindArrayObject && newObj) - (*ctx->Driver.BindArrayObject)( ctx, newObj ); + ctx->Driver.BindArrayObject(ctx, newObj); +} + + +/** + * ARB version of glBindVertexArray() + * This function behaves differently from glBindVertexArrayAPPLE() in + * that this function requires all ids to have been previously generated + * by glGenVertexArrays[APPLE](). + */ +void GLAPIENTRY +_mesa_BindVertexArray( GLuint id ) +{ + GET_CURRENT_CONTEXT(ctx); + bind_vertex_array(ctx, id, GL_TRUE); +} + + +/** + * Bind a new array. + * + * \todo + * The binding could be done more efficiently by comparing the non-NULL + * pointers in the old and new objects. The only arrays that are "dirty" are + * the ones that are non-NULL in either object. + */ +void GLAPIENTRY +_mesa_BindVertexArrayAPPLE( GLuint id ) +{ + GET_CURRENT_CONTEXT(ctx); + bind_vertex_array(ctx, id, GL_FALSE); } @@ -308,15 +457,12 @@ _mesa_DeleteVertexArraysAPPLE(GLsizei n, const GLuint *ids) return; } - _glthread_LOCK_MUTEX(ctx->Shared->Mutex); - for (i = 0; i < n; i++) { struct gl_array_object *obj = lookup_arrayobj(ctx, ids[i]); if ( obj != NULL ) { ASSERT( obj->Name == ids[i] ); - /* If the array object is currently bound, the spec says "the binding * for that object reverts to zero and the default vertex array * becomes current." @@ -325,45 +471,28 @@ _mesa_DeleteVertexArraysAPPLE(GLsizei n, const GLuint *ids) CALL_BindVertexArrayAPPLE( ctx->Exec, (0) ); } -#if FEATURE_ARB_vertex_buffer_object - /* Unbind any buffer objects that might be bound to arrays in - * this array object. - */ - unbind_buffer_object( ctx, obj->Vertex.BufferObj ); - unbind_buffer_object( ctx, obj->Normal.BufferObj ); - unbind_buffer_object( ctx, obj->Color.BufferObj ); - unbind_buffer_object( ctx, obj->SecondaryColor.BufferObj ); - unbind_buffer_object( ctx, obj->FogCoord.BufferObj ); - unbind_buffer_object( ctx, obj->Index.BufferObj ); - for (i = 0; i < MAX_TEXTURE_COORD_UNITS; i++) { - unbind_buffer_object( ctx, obj->TexCoord[i].BufferObj ); - } - unbind_buffer_object( ctx, obj->EdgeFlag.BufferObj ); - for (i = 0; i < VERT_ATTRIB_MAX; i++) { - unbind_buffer_object( ctx, obj->VertexAttrib[i].BufferObj ); - } -#endif - /* The ID is immediately freed for re-use */ - _mesa_remove_array_object(ctx, obj); - ctx->Driver.DeleteArrayObject(ctx, obj); + remove_array_object(ctx, obj); + + /* Unreference the array object. + * If refcount hits zero, the object will be deleted. + */ + _mesa_reference_array_object(ctx, &obj, NULL); } } - - _glthread_UNLOCK_MUTEX(ctx->Shared->Mutex); } /** * Generate a set of unique array object IDs and store them in \c arrays. - * + * Helper for _mesa_GenVertexArrays[APPLE]() functions below. * \param n Number of IDs to generate. * \param arrays Array of \c n locations to store the IDs. + * \param vboOnly Will arrays have to reside in VBOs? */ -void GLAPIENTRY -_mesa_GenVertexArraysAPPLE(GLsizei n, GLuint *arrays) +static void +gen_vertex_arrays(GLcontext *ctx, GLsizei n, GLuint *arrays, GLboolean vboOnly) { - GET_CURRENT_CONTEXT(ctx); GLuint first; GLint i; ASSERT_OUTSIDE_BEGIN_END(ctx); @@ -377,12 +506,7 @@ _mesa_GenVertexArraysAPPLE(GLsizei n, GLuint *arrays) return; } - /* - * This must be atomic (generation and allocation of array object IDs) - */ - _glthread_LOCK_MUTEX(ctx->Shared->Mutex); - - first = _mesa_HashFindFreeKeyBlock(ctx->Shared->ArrayObjects, n); + first = _mesa_HashFindFreeKeyBlock(ctx->Array.Objects, n); /* Allocate new, empty array objects and return identifiers */ for (i = 0; i < n; i++) { @@ -391,15 +515,37 @@ _mesa_GenVertexArraysAPPLE(GLsizei n, GLuint *arrays) obj = (*ctx->Driver.NewArrayObject)( ctx, name ); if (!obj) { - _glthread_UNLOCK_MUTEX(ctx->Shared->Mutex); _mesa_error(ctx, GL_OUT_OF_MEMORY, "glGenVertexArraysAPPLE"); return; } - _mesa_save_array_object(ctx, obj); + obj->VBOonly = vboOnly; + save_array_object(ctx, obj); arrays[i] = first + i; } +} + + +/** + * ARB version of glGenVertexArrays() + * All arrays will be required to live in VBOs. + */ +void GLAPIENTRY +_mesa_GenVertexArrays(GLsizei n, GLuint *arrays) +{ + GET_CURRENT_CONTEXT(ctx); + gen_vertex_arrays(ctx, n, arrays, GL_TRUE); +} + - _glthread_UNLOCK_MUTEX(ctx->Shared->Mutex); +/** + * APPLE version of glGenVertexArraysAPPLE() + * Arrays may live in VBOs or ordinary memory. + */ +void GLAPIENTRY +_mesa_GenVertexArraysAPPLE(GLsizei n, GLuint *arrays) +{ + GET_CURRENT_CONTEXT(ctx); + gen_vertex_arrays(ctx, n, arrays, GL_FALSE); } @@ -420,9 +566,7 @@ _mesa_IsVertexArrayAPPLE( GLuint id ) if (id == 0) return GL_FALSE; - _glthread_LOCK_MUTEX(ctx->Shared->Mutex); obj = lookup_arrayobj(ctx, id); - _glthread_UNLOCK_MUTEX(ctx->Shared->Mutex); return (obj != NULL) ? GL_TRUE : GL_FALSE; } |