Commit e630271e authored by Marek Olšák's avatar Marek Olšák
Browse files

mesa: don't ever set NullBufferObj in gl_vertex_array_binding



This improves performance by 5% in the game "torcs", FPS: 98.83 -> 103.73

It does a lot of glPush/PopClientAttrib, which exacerbates the overhead
of setting NullBufferObj.
Reviewed-by: Pierre-Eric Pelloux-Prayer's avatarPierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>
Part-of: <!4466>
parent a0a0c681
......@@ -109,26 +109,29 @@ nouveau_init_array(struct nouveau_array *a, int attr, int stride,
a->type = type;
a->buf = NULL;
if (obj) {
if (nouveau_bufferobj_hw(obj)) {
struct nouveau_bufferobj *nbo =
to_nouveau_bufferobj(obj);
if (nouveau_bufferobj_hw(obj)) {
struct nouveau_bufferobj *nbo =
to_nouveau_bufferobj(obj);
nouveau_bo_ref(nbo->bo, &a->bo);
a->offset = (intptr_t)ptr;
nouveau_bo_ref(nbo->bo, &a->bo);
a->offset = (intptr_t)ptr;
if (map) {
nouveau_bo_map(a->bo, NOUVEAU_BO_RD, client);
a->buf = a->bo->map + a->offset;
}
if (map) {
nouveau_bo_map(a->bo, NOUVEAU_BO_RD, client);
a->buf = a->bo->map + a->offset;
}
} else {
nouveau_bo_ref(NULL, &a->bo);
a->offset = 0;
} else {
nouveau_bo_ref(NULL, &a->bo);
a->offset = 0;
if (map)
if (map) {
if (obj) {
a->buf = ADD_POINTERS(
nouveau_bufferobj_sys(obj), ptr);
} else {
a->buf = ptr;
}
}
}
......
......@@ -343,8 +343,13 @@ vbo_bind_vertices(struct gl_context *ctx, const struct tnl_vertex_array *arrays,
} else {
int n = max_index - min_index + 1;
char *sp = (char *)ADD_POINTERS(
const char *sp;
if (obj) {
sp = (char *)ADD_POINTERS(
nouveau_bufferobj_sys(obj), p) + delta;
} else {
sp = p + delta;
}
char *dp = nouveau_get_scratch(ctx, n * a->stride,
&bo[i], &offset[i]);
......
......@@ -1413,11 +1413,14 @@ attrib_src(const struct gl_vertex_array_object *vao,
{
const struct gl_vertex_buffer_binding *binding =
&vao->BufferBinding[array->BufferBindingIndex];
const GLubyte *src
= ADD_POINTERS(binding->BufferObj->Mappings[MAP_INTERNAL].Pointer,
_mesa_vertex_attrib_address(array, binding))
+ elt * binding->Stride;
return src;
const GLubyte *src = _mesa_vertex_attrib_address(array, binding);
if (_mesa_is_bufferobj(binding->BufferObj)) {
src = ADD_POINTERS(binding->BufferObj->Mappings[MAP_INTERNAL].Pointer,
src);
}
return src + elt * binding->Stride;
}
......
......@@ -398,12 +398,6 @@ _mesa_initialize_vao(struct gl_context *ctx,
vao->Name = name;
_mesa_reference_buffer_object(ctx, &vao->IndexBufferObj,
ctx->Shared->NullBufferObj);
/* Vertex array buffers */
for (unsigned i = 0; i < ARRAY_SIZE(vao->BufferBinding); i++) {
_mesa_reference_buffer_object(ctx, &vao->BufferBinding[i].BufferObj,
ctx->Shared->NullBufferObj);
}
}
......
......@@ -1171,7 +1171,7 @@ unbind(struct gl_context *ctx,
struct gl_buffer_object *obj)
{
if (vao->BufferBinding[index].BufferObj == obj) {
_mesa_bind_vertex_buffer(ctx, vao, index, ctx->Shared->NullBufferObj,
_mesa_bind_vertex_buffer(ctx, vao, index, NULL,
vao->BufferBinding[index].Offset,
vao->BufferBinding[index].Stride);
}
......
......@@ -90,7 +90,7 @@ check_array_data(struct gl_context *ctx, struct gl_vertex_array_object *vao,
array->Format.Type, array->Format.Size,
binding->Stride);
printf(" Address/offset %p in Buffer Object %u\n",
array->Ptr, bo->Name);
array->Ptr, bo ? bo->Name : 0);
f[k] = 1.0F; /* XXX replace the bad value! */
}
/*assert(!IS_INF_OR_NAN(f[k])); */
......@@ -255,7 +255,7 @@ print_draw_arrays(struct gl_context *ctx,
"ptr %p Bufobj %u\n",
gl_vert_attrib_name((gl_vert_attrib) i),
array->Format.Size, binding->Stride,
array->Ptr, bufObj->Name);
array->Ptr, bufObj ? bufObj->Name : 0);
if (_mesa_is_bufferobj(bufObj)) {
GLubyte *p = bufObj->Mappings[MAP_INTERNAL].Pointer;
......
......@@ -690,7 +690,7 @@ static const int extra_EXT_disjoint_timer_query[] = {
static void
find_custom_value(struct gl_context *ctx, const struct value_desc *d, union value *v)
{
struct gl_buffer_object **buffer_obj;
struct gl_buffer_object **buffer_obj, *buf;
struct gl_array_attributes *array;
GLuint unit, *p;
......@@ -1006,14 +1006,14 @@ find_custom_value(struct gl_context *ctx, const struct value_desc *d, union valu
case GL_FOG_COORDINATE_ARRAY_BUFFER_BINDING_ARB:
buffer_obj = (struct gl_buffer_object **)
((char *) ctx->Array.VAO + d->offset);
v->value_int = (*buffer_obj)->Name;
v->value_int = (*buffer_obj) ? (*buffer_obj)->Name : 0;
break;
case GL_ARRAY_BUFFER_BINDING_ARB:
v->value_int = ctx->Array.ArrayBufferObj->Name;
break;
case GL_TEXTURE_COORD_ARRAY_BUFFER_BINDING_ARB:
v->value_int =
ctx->Array.VAO->BufferBinding[VERT_ATTRIB_TEX(ctx->Array.ActiveTexture)].BufferObj->Name;
buf = ctx->Array.VAO->BufferBinding[VERT_ATTRIB_TEX(ctx->Array.ActiveTexture)].BufferObj;
v->value_int = buf ? buf->Name : 0;
break;
case GL_ELEMENT_ARRAY_BUFFER_BINDING_ARB:
v->value_int = ctx->Array.VAO->IndexBufferObj->Name;
......@@ -1079,7 +1079,8 @@ find_custom_value(struct gl_context *ctx, const struct value_desc *d, union valu
ctx->CurrentRenderbuffer ? ctx->CurrentRenderbuffer->Name : 0;
break;
case GL_POINT_SIZE_ARRAY_BUFFER_BINDING_OES:
v->value_int = ctx->Array.VAO->BufferBinding[VERT_ATTRIB_POINT_SIZE].BufferObj->Name;
buf = ctx->Array.VAO->BufferBinding[VERT_ATTRIB_POINT_SIZE].BufferObj;
v->value_int = buf ? buf->Name : 0;
break;
case GL_FOG_COLOR:
......@@ -2394,6 +2395,7 @@ static enum value_type
find_value_indexed(const char *func, GLenum pname, GLuint index, union value *v)
{
GET_CURRENT_CONTEXT(ctx);
struct gl_buffer_object *buf;
switch (pname) {
......@@ -2642,7 +2644,8 @@ find_value_indexed(const char *func, GLenum pname, GLuint index, union value *v)
goto invalid_enum;
if (index >= ctx->Const.Program[MESA_SHADER_VERTEX].MaxAttribs)
goto invalid_value;
v->value_int = ctx->Array.VAO->BufferBinding[VERT_ATTRIB_GENERIC(index)].BufferObj->Name;
buf = ctx->Array.VAO->BufferBinding[VERT_ATTRIB_GENERIC(index)].BufferObj;
v->value_int = buf ? buf->Name : 0;
return TYPE_INT;
/* ARB_shader_image_load_store */
......
......@@ -204,6 +204,8 @@ _mesa_bind_vertex_buffer(struct gl_context *ctx,
assert(!vao->SharedAndImmutable);
struct gl_vertex_buffer_binding *binding = &vao->BufferBinding[index];
assert(vbo != ctx->Shared->NullBufferObj);
if (ctx->Const.VertexBufferOffsetIsInt32 && (int)offset < 0 &&
_mesa_is_bufferobj(vbo)) {
/* The offset will be interpreted as a signed int, so make sure
......@@ -899,6 +901,10 @@ update_array(struct gl_context *ctx,
assert((vao->NewArrays | ~vao->Enabled) & VERT_BIT(attrib));
array->Ptr = ptr;
/* TODO: remove this hack by not using NullBufferObj in callers */
if (obj == ctx->Shared->NullBufferObj)
obj = NULL;
/* Update the vertex buffer binding */
GLsizei effectiveStride = stride != 0 ?
stride : array->Format._ElementSize;
......@@ -932,7 +938,7 @@ _lookup_vao_and_vbo_dsa(struct gl_context *ctx,
return false;
}
} else {
*vbo = ctx->Shared->NullBufferObj;
*vbo = NULL;
}
return true;
......@@ -2065,6 +2071,7 @@ get_vertex_array_attrib(struct gl_context *ctx,
const char *caller)
{
const struct gl_array_attributes *array;
struct gl_buffer_object *buf;
if (index >= ctx->Const.Program[MESA_SHADER_VERTEX].MaxAttribs) {
_mesa_error(ctx, GL_INVALID_VALUE, "%s(index=%u)", caller, index);
......@@ -2087,7 +2094,8 @@ get_vertex_array_attrib(struct gl_context *ctx,
case GL_VERTEX_ATTRIB_ARRAY_NORMALIZED_ARB:
return array->Format.Normalized;
case GL_VERTEX_ATTRIB_ARRAY_BUFFER_BINDING_ARB:
return vao->BufferBinding[array->BufferBindingIndex].BufferObj->Name;
buf = vao->BufferBinding[array->BufferBindingIndex].BufferObj;
return buf ? buf->Name : 0;
case GL_VERTEX_ATTRIB_ARRAY_INTEGER:
if ((_mesa_is_desktop_gl(ctx)
&& (ctx->Version >= 30 || ctx->Extensions.EXT_gpu_shader4))
......@@ -2329,6 +2337,7 @@ _mesa_GetVertexArrayIndexediv(GLuint vaobj, GLuint index,
{
GET_CURRENT_CONTEXT(ctx);
struct gl_vertex_array_object *vao;
struct gl_buffer_object *buf;
/* The ARB_direct_state_access specification says:
*
......@@ -2376,7 +2385,8 @@ _mesa_GetVertexArrayIndexediv(GLuint vaobj, GLuint index,
params[0] = vao->BufferBinding[VERT_ATTRIB_GENERIC(index)].InstanceDivisor;
break;
case GL_VERTEX_BINDING_BUFFER:
params[0] = vao->BufferBinding[VERT_ATTRIB_GENERIC(index)].BufferObj->Name;
buf = vao->BufferBinding[VERT_ATTRIB_GENERIC(index)].BufferObj;
params[0] = buf ? buf->Name : 0;
break;
default:
params[0] = get_vertex_array_attrib(ctx, vao, index, pname,
......@@ -2895,9 +2905,11 @@ vertex_array_vertex_buffer(struct gl_context *ctx,
GLsizei stride, bool no_error, const char *func)
{
struct gl_buffer_object *vbo;
if (buffer ==
vao->BufferBinding[VERT_ATTRIB_GENERIC(bindingIndex)].BufferObj->Name) {
vbo = vao->BufferBinding[VERT_ATTRIB_GENERIC(bindingIndex)].BufferObj;
struct gl_buffer_object *current_buf =
vao->BufferBinding[VERT_ATTRIB_GENERIC(bindingIndex)].BufferObj;
if (current_buf && buffer == current_buf->Name) {
vbo = current_buf;
} else if (buffer != 0) {
vbo = _mesa_lookup_bufferobj(ctx, buffer);
......@@ -2923,7 +2935,7 @@ vertex_array_vertex_buffer(struct gl_context *ctx,
* "If <buffer> is zero, any buffer object attached to this
* bindpoint is detached."
*/
vbo = ctx->Shared->NullBufferObj;
vbo = NULL;
}
_mesa_bind_vertex_buffer(ctx, vao, VERT_ATTRIB_GENERIC(bindingIndex),
......@@ -3090,11 +3102,9 @@ vertex_array_vertex_buffers(struct gl_context *ctx,
* associated with the binding points are set to default values,
* ignoring <offsets> and <strides>."
*/
struct gl_buffer_object *vbo = ctx->Shared->NullBufferObj;
for (i = 0; i < count; i++)
_mesa_bind_vertex_buffer(ctx, vao, VERT_ATTRIB_GENERIC(first + i),
vbo, 0, 16);
NULL, 0, 16);
return;
}
......@@ -3156,15 +3166,21 @@ vertex_array_vertex_buffers(struct gl_context *ctx,
struct gl_vertex_buffer_binding *binding =
&vao->BufferBinding[VERT_ATTRIB_GENERIC(first + i)];
if (buffers[i] == binding->BufferObj->Name)
if (buffers[i] == 0)
vbo = NULL;
else if (binding->BufferObj && binding->BufferObj->Name == buffers[i])
vbo = binding->BufferObj;
else
else {
vbo = _mesa_multi_bind_lookup_bufferobj(ctx, buffers, i, func);
if (!vbo)
continue;
if (!vbo)
continue;
/* TODO: remove this hack */
if (vbo == ctx->Shared->NullBufferObj)
vbo = NULL;
}
} else {
vbo = ctx->Shared->NullBufferObj;
vbo = NULL;
}
_mesa_bind_vertex_buffer(ctx, vao, VERT_ATTRIB_GENERIC(first + i),
......@@ -3783,8 +3799,8 @@ _mesa_print_arrays(struct gl_context *ctx)
gl_vert_attrib_name((gl_vert_attrib)i),
array->Ptr, _mesa_enum_to_string(array->Format.Type),
array->Format.Size,
array->Format._ElementSize, binding->Stride, bo->Name,
(unsigned long) bo->Size);
array->Format._ElementSize, binding->Stride, bo ? bo->Name : 0,
(unsigned long) bo ? bo->Size : 0);
}
}
......@@ -3903,6 +3919,7 @@ _mesa_GetVertexArrayIntegervEXT(GLuint vaobj, GLenum pname, GLint *param)
{
GET_CURRENT_CONTEXT(ctx);
struct gl_vertex_array_object* vao;
struct gl_buffer_object *buf;
void* ptr;
vao = _mesa_lookup_vao_err(ctx, vaobj, true,
......@@ -3932,7 +3949,8 @@ _mesa_GetVertexArrayIntegervEXT(GLuint vaobj, GLenum pname, GLint *param)
*param = vao->VertexAttrib[VERT_ATTRIB_POS].Stride;
break;
case GL_VERTEX_ARRAY_BUFFER_BINDING:
*param = vao->BufferBinding[VERT_ATTRIB_POS].BufferObj->Name;
buf = vao->BufferBinding[VERT_ATTRIB_POS].BufferObj;
*param = buf ? buf->Name : 0;
break;
case GL_COLOR_ARRAY_SIZE:
*param = vao->VertexAttrib[VERT_ATTRIB_COLOR0].Format.Size;
......@@ -3944,13 +3962,15 @@ _mesa_GetVertexArrayIntegervEXT(GLuint vaobj, GLenum pname, GLint *param)
*param = vao->VertexAttrib[VERT_ATTRIB_COLOR0].Stride;
break;
case GL_COLOR_ARRAY_BUFFER_BINDING:
*param = vao->BufferBinding[VERT_ATTRIB_COLOR0].BufferObj->Name;
buf = vao->BufferBinding[VERT_ATTRIB_COLOR0].BufferObj;
*param = buf ? buf->Name : 0;
break;
case GL_EDGE_FLAG_ARRAY_STRIDE:
*param = vao->VertexAttrib[VERT_ATTRIB_EDGEFLAG].Stride;
break;
case GL_EDGE_FLAG_ARRAY_BUFFER_BINDING:
*param = vao->BufferBinding[VERT_ATTRIB_EDGEFLAG].BufferObj->Name;
buf = vao->BufferBinding[VERT_ATTRIB_EDGEFLAG].BufferObj;
*param = buf ? buf->Name : 0;
break;
case GL_INDEX_ARRAY_TYPE:
*param = vao->VertexAttrib[VERT_ATTRIB_COLOR_INDEX].Format.Type;
......@@ -3959,7 +3979,8 @@ _mesa_GetVertexArrayIntegervEXT(GLuint vaobj, GLenum pname, GLint *param)
*param = vao->VertexAttrib[VERT_ATTRIB_COLOR_INDEX].Stride;
break;
case GL_INDEX_ARRAY_BUFFER_BINDING:
*param = vao->BufferBinding[VERT_ATTRIB_COLOR_INDEX].BufferObj->Name;
buf = vao->BufferBinding[VERT_ATTRIB_COLOR_INDEX].BufferObj;
*param = buf ? buf->Name : 0;
break;
case GL_NORMAL_ARRAY_TYPE:
*param = vao->VertexAttrib[VERT_ATTRIB_NORMAL].Format.Type;
......@@ -3968,7 +3989,8 @@ _mesa_GetVertexArrayIntegervEXT(GLuint vaobj, GLenum pname, GLint *param)
*param = vao->VertexAttrib[VERT_ATTRIB_NORMAL].Stride;
break;
case GL_NORMAL_ARRAY_BUFFER_BINDING:
*param = vao->BufferBinding[VERT_ATTRIB_NORMAL].BufferObj->Name;
buf = vao->BufferBinding[VERT_ATTRIB_NORMAL].BufferObj;
*param = buf ? buf->Name : 0;
break;
case GL_TEXTURE_COORD_ARRAY_SIZE:
*param = vao->VertexAttrib[VERT_ATTRIB_TEX(ctx->Array.ActiveTexture)].Format.Size;
......@@ -3980,7 +4002,8 @@ _mesa_GetVertexArrayIntegervEXT(GLuint vaobj, GLenum pname, GLint *param)
*param = vao->VertexAttrib[VERT_ATTRIB_TEX(ctx->Array.ActiveTexture)].Stride;
break;
case GL_TEXTURE_COORD_ARRAY_BUFFER_BINDING:
*param = vao->BufferBinding[VERT_ATTRIB_TEX(ctx->Array.ActiveTexture)].BufferObj->Name;
buf = vao->BufferBinding[VERT_ATTRIB_TEX(ctx->Array.ActiveTexture)].BufferObj;
*param = buf ? buf->Name : 0;
break;
case GL_FOG_COORD_ARRAY_TYPE:
*param = vao->VertexAttrib[VERT_ATTRIB_FOG].Format.Type;
......@@ -3989,7 +4012,8 @@ _mesa_GetVertexArrayIntegervEXT(GLuint vaobj, GLenum pname, GLint *param)
*param = vao->VertexAttrib[VERT_ATTRIB_FOG].Stride;
break;
case GL_FOG_COORD_ARRAY_BUFFER_BINDING:
*param = vao->BufferBinding[VERT_ATTRIB_FOG].BufferObj->Name;
buf = vao->BufferBinding[VERT_ATTRIB_FOG].BufferObj;
*param = buf ? buf->Name : 0;
break;
case GL_SECONDARY_COLOR_ARRAY_SIZE:
*param = vao->VertexAttrib[VERT_ATTRIB_COLOR1].Format.Size;
......@@ -4001,7 +4025,8 @@ _mesa_GetVertexArrayIntegervEXT(GLuint vaobj, GLenum pname, GLint *param)
*param = vao->VertexAttrib[VERT_ATTRIB_COLOR1].Stride;
break;
case GL_SECONDARY_COLOR_ARRAY_BUFFER_BINDING:
*param = vao->BufferBinding[VERT_ATTRIB_COLOR1].BufferObj->Name;
buf = vao->BufferBinding[VERT_ATTRIB_COLOR1].BufferObj;
*param = buf ? buf->Name : 0;
break;
/* Tokens using IsEnabled */
......@@ -4089,6 +4114,7 @@ _mesa_GetVertexArrayIntegeri_vEXT(GLuint vaobj, GLuint index, GLenum pname, GLin
{
GET_CURRENT_CONTEXT(ctx);
struct gl_vertex_array_object* vao;
struct gl_buffer_object *buf;
vao = _mesa_lookup_vao_err(ctx, vaobj, true,
"glGetVertexArrayIntegeri_vEXT");
......@@ -4120,7 +4146,8 @@ _mesa_GetVertexArrayIntegeri_vEXT(GLuint vaobj, GLuint index, GLenum pname, GLin
*param = vao->VertexAttrib[VERT_ATTRIB_TEX(index)].Stride;
break;
case GL_TEXTURE_COORD_ARRAY_BUFFER_BINDING:
*param = vao->BufferBinding[VERT_ATTRIB_TEX(index)].BufferObj->Name;
buf = vao->BufferBinding[VERT_ATTRIB_TEX(index)].BufferObj;
*param = buf ? buf->Name : 0;
break;
default:
*param = get_vertex_array_attrib(ctx, vao, index, pname, "glGetVertexArrayIntegeri_vEXT");
......
......@@ -455,13 +455,17 @@ replay_init(struct copy_context *copy)
copy->varying[j].size = attrib->Format._ElementSize;
copy->vertex_size += attrib->Format._ElementSize;
if (_mesa_is_bufferobj(vbo) &&
!_mesa_bufferobj_mapped(vbo, MAP_INTERNAL))
ctx->Driver.MapBufferRange(ctx, 0, vbo->Size, GL_MAP_READ_BIT, vbo,
MAP_INTERNAL);
if (_mesa_is_bufferobj(vbo)) {
if (!_mesa_bufferobj_mapped(vbo, MAP_INTERNAL)) {
ctx->Driver.MapBufferRange(ctx, 0, vbo->Size, GL_MAP_READ_BIT, vbo,
MAP_INTERNAL);
}
copy->varying[j].src_ptr =
ADD_POINTERS(vbo->Mappings[MAP_INTERNAL].Pointer, ptr);
copy->varying[j].src_ptr =
ADD_POINTERS(vbo->Mappings[MAP_INTERNAL].Pointer, ptr);
} else {
copy->varying[j].src_ptr = ptr;
}
copy->dstarray[i].VertexAttrib = &copy->varying[j].dstattribs;
copy->dstarray[i].BufferBinding = &copy->varying[j].dstbinding;
......@@ -532,7 +536,7 @@ replay_init(struct copy_context *copy)
dstattr->Format = srcattr->Format;
dstattr->Ptr = copy->dstbuf + offset;
dstbind->Stride = copy->vertex_size;
dstbind->BufferObj = ctx->Shared->NullBufferObj;
dstbind->BufferObj = NULL;
dst->BufferBinding = dstbind;
dst->VertexAttrib = dstattr;
......
......@@ -168,8 +168,7 @@ _vbo_CreateContext(struct gl_context *ctx, bool use_buffer_objects)
vbo->binding.Offset = 0;
vbo->binding.Stride = 0;
vbo->binding.InstanceDivisor = 0;
_mesa_reference_buffer_object(ctx, &vbo->binding.BufferObj,
ctx->Shared->NullBufferObj);
init_legacy_currval(ctx);
init_generic_currval(ctx);
init_mat_currval(ctx);
......@@ -202,7 +201,6 @@ _vbo_DestroyContext(struct gl_context *ctx)
struct vbo_context *vbo = vbo_context(ctx);
if (vbo) {
_mesa_reference_buffer_object(ctx, &vbo->binding.BufferObj, NULL);
vbo_exec_destroy(ctx);
......
......@@ -1013,10 +1013,7 @@ vbo_exec_vtx_init(struct vbo_exec_context *exec, bool use_buffer_objects)
assert(exec->vtx.buffer_ptr);
} else {
/* Use allocated memory for immediate mode. */
_mesa_reference_buffer_object(ctx,
&exec->vtx.bufferobj,
ctx->Shared->NullBufferObj);
exec->vtx.bufferobj = NULL;
exec->vtx.buffer_map =
_mesa_align_malloc(ctx->Const.glBeginEndBufferSize, 64);
exec->vtx.buffer_ptr = exec->vtx.buffer_map;
......@@ -1039,9 +1036,9 @@ vbo_exec_vtx_destroy(struct vbo_exec_context *exec)
/* True VBOs should already be unmapped
*/
if (exec->vtx.buffer_map) {
assert(exec->vtx.bufferobj->Name == 0 ||
assert(!exec->vtx.bufferobj ||
exec->vtx.bufferobj->Name == IMM_BUFFER_NAME);
if (exec->vtx.bufferobj->Name == 0) {
if (!exec->vtx.bufferobj) {
_mesa_align_free(exec->vtx.buffer_map);
exec->vtx.buffer_map = NULL;
exec->vtx.buffer_ptr = NULL;
......@@ -1050,7 +1047,8 @@ vbo_exec_vtx_destroy(struct vbo_exec_context *exec)
/* Free the vertex buffer. Unmap first if needed.
*/
if (_mesa_bufferobj_mapped(exec->vtx.bufferobj, MAP_INTERNAL)) {
if (exec->vtx.bufferobj &&
_mesa_bufferobj_mapped(exec->vtx.bufferobj, MAP_INTERNAL)) {
ctx->Driver.UnmapBuffer(ctx, exec->vtx.bufferobj, MAP_INTERNAL);
}
_mesa_reference_buffer_object(ctx, &exec->vtx.bufferobj, NULL);
......
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