*/
#include <stdbool.h>
+#include <inttypes.h> /* for PRId64 macro */
#include "glheader.h"
#include "enums.h"
#include "hash.h"
return &ctx->AtomicBuffer;
}
break;
+ case GL_EXTERNAL_VIRTUAL_MEMORY_BUFFER_AMD:
+ if (ctx->Extensions.AMD_pinned_memory) {
+ return &ctx->ExternalVirtualMemoryBuffer;
+ }
+ break;
default:
return NULL;
}
* Default callback for the \c dd_function_table::NewBufferObject() hook.
*/
static struct gl_buffer_object *
-_mesa_new_buffer_object( struct gl_context *ctx, GLuint name, GLenum target )
+_mesa_new_buffer_object(struct gl_context *ctx, GLuint name)
{
struct gl_buffer_object *obj;
(void) ctx;
obj = MALLOC_STRUCT(gl_buffer_object);
- _mesa_initialize_buffer_object(ctx, obj, name, target);
+ _mesa_initialize_buffer_object(ctx, obj, name);
return obj;
}
struct gl_buffer_object *oldObj = *ptr;
mtx_lock(&oldObj->Mutex);
- ASSERT(oldObj->RefCount > 0);
+ assert(oldObj->RefCount > 0);
oldObj->RefCount--;
#if 0
printf("BufferObj %p %d DECR to %d\n",
/* some sanity checking: don't delete a buffer still in use */
#if 0
/* unfortunately, these tests are invalid during context tear-down */
- ASSERT(ctx->Array.ArrayBufferObj != bufObj);
- ASSERT(ctx->Array.VAO->IndexBufferObj != bufObj);
- ASSERT(ctx->Array.VAO->Vertex.BufferObj != bufObj);
+ assert(ctx->Array.ArrayBufferObj != bufObj);
+ assert(ctx->Array.VAO->IndexBufferObj != bufObj);
+ assert(ctx->Array.VAO->Vertex.BufferObj != bufObj);
#endif
- ASSERT(ctx->Driver.DeleteBuffer);
+ assert(ctx->Driver.DeleteBuffer);
ctx->Driver.DeleteBuffer(ctx, oldObj);
}
*ptr = NULL;
}
- ASSERT(!*ptr);
+ assert(!*ptr);
if (bufObj) {
/* reference new buffer */
* Initialize a buffer object to default values.
*/
void
-_mesa_initialize_buffer_object( struct gl_context *ctx,
- struct gl_buffer_object *obj,
- GLuint name, GLenum target )
+_mesa_initialize_buffer_object(struct gl_context *ctx,
+ struct gl_buffer_object *obj,
+ GLuint name)
{
- (void) target;
-
memset(obj, 0, sizeof(struct gl_buffer_object));
mtx_init(&obj->Mutex, mtx_plain);
obj->RefCount = 1;
(void) ctx;
/* this should have been caught in _mesa_BufferSubData() */
- ASSERT(size + offset <= bufObj->Size);
+ assert(size + offset <= bufObj->Size);
if (bufObj->Data) {
memcpy( (GLubyte *) bufObj->Data + offset, data, size );
GLsizeiptr i;
GLubyte *dest;
- ASSERT(ctx->Driver.MapBufferRange);
+ assert(ctx->Driver.MapBufferRange);
dest = ctx->Driver.MapBufferRange(ctx, offset, size,
GL_MAP_WRITE_BIT |
GL_MAP_INVALIDATE_RANGE_BIT,
_mesa_reference_buffer_object(ctx, &ctx->UniformBuffer,
ctx->Shared->NullBufferObj);
+ _mesa_reference_buffer_object(ctx, &ctx->AtomicBuffer,
+ ctx->Shared->NullBufferObj);
+
_mesa_reference_buffer_object(ctx, &ctx->DrawIndirectBuffer,
ctx->Shared->NullBufferObj);
ctx->UniformBufferBindings[i].Offset = -1;
ctx->UniformBufferBindings[i].Size = -1;
}
+
+ for (i = 0; i < MAX_COMBINED_ATOMIC_BUFFERS; i++) {
+ _mesa_reference_buffer_object(ctx,
+ &ctx->AtomicBufferBindings[i].BufferObject,
+ ctx->Shared->NullBufferObj);
+ ctx->AtomicBufferBindings[i].Offset = -1;
+ ctx->AtomicBufferBindings[i].Size = -1;
+ }
}
_mesa_reference_buffer_object(ctx, &ctx->UniformBuffer, NULL);
+ _mesa_reference_buffer_object(ctx, &ctx->AtomicBuffer, NULL);
+
_mesa_reference_buffer_object(ctx, &ctx->DrawIndirectBuffer, NULL);
for (i = 0; i < MAX_COMBINED_UNIFORM_BUFFERS; i++) {
&ctx->UniformBufferBindings[i].BufferObject,
NULL);
}
+
+ for (i = 0; i < MAX_COMBINED_ATOMIC_BUFFERS; i++) {
+ _mesa_reference_buffer_object(ctx,
+ &ctx->AtomicBufferBindings[i].BufferObject,
+ NULL);
+ }
+
}
bool
/* If this is a new buffer object id, or one which was generated but
* never used before, allocate a buffer object now.
*/
- ASSERT(ctx->Driver.NewBufferObject);
- buf = ctx->Driver.NewBufferObject(ctx, buffer, target);
+ assert(ctx->Driver.NewBufferObject);
+ buf = ctx->Driver.NewBufferObject(ctx, buffer);
if (!buf) {
_mesa_error(ctx, GL_OUT_OF_MEMORY, "%s", caller);
return false;
for (i = 0; i < MAP_COUNT; i++) {
if (_mesa_bufferobj_mapped(bufObj, i)) {
ctx->Driver.UnmapBuffer(ctx, bufObj, i);
- ASSERT(bufObj->Mappings[i].Pointer == NULL);
+ assert(bufObj->Mappings[i].Pointer == NULL);
bufObj->Mappings[i].AccessFlags = 0;
}
}
struct gl_vertex_array_object *vao = ctx->Array.VAO;
GLuint j;
- ASSERT(bufObj->Name == ids[i] || bufObj == &DummyBufferObject);
+ assert(bufObj->Name == ids[i] || bufObj == &DummyBufferObject);
_mesa_buffer_unmap_all_mappings(ctx, bufObj);
/* unbind any vertex pointers bound to this buffer */
- for (j = 0; j < Elements(vao->VertexBinding); j++) {
+ for (j = 0; j < ARRAY_SIZE(vao->VertexBinding); j++) {
unbind(ctx, &vao->VertexBinding[j].BufferObj, bufObj);
}
_mesa_BindBuffer( GL_UNIFORM_BUFFER, 0 );
}
+ /* unbind Atomci Buffer binding points */
+ for (j = 0; j < ctx->Const.MaxAtomicBufferBindings; j++) {
+ if (ctx->AtomicBufferBindings[j].BufferObject == bufObj) {
+ _mesa_BindBufferBase( GL_ATOMIC_COUNTER_BUFFER, j, 0 );
+ }
+ }
+
+ if (ctx->AtomicBuffer == bufObj) {
+ _mesa_BindBuffer( GL_ATOMIC_COUNTER_BUFFER, 0 );
+ }
+
/* unbind any pixel pack/unpack pointers bound to this buffer */
if (ctx->Pack.BufferObj == bufObj) {
_mesa_BindBuffer( GL_PIXEL_PACK_BUFFER_EXT, 0 );
_mesa_BindBuffer( GL_TEXTURE_BUFFER, 0 );
}
+ if (ctx->ExternalVirtualMemoryBuffer == bufObj) {
+ _mesa_BindBuffer(GL_EXTERNAL_VIRTUAL_MEMORY_BUFFER_AMD, 0);
+ }
+
/* The ID is immediately freed for re-use */
_mesa_HashRemove(ctx->Shared->BufferObjects, ids[i]);
/* Make sure we do not run into the classic ABA problem on bind.
bufObj->Written = GL_TRUE;
bufObj->Immutable = GL_TRUE;
- ASSERT(ctx->Driver.BufferData);
+ assert(ctx->Driver.BufferData);
if (!ctx->Driver.BufferData(ctx, target, size, data, GL_DYNAMIC_DRAW,
flags, bufObj)) {
- _mesa_error(ctx, GL_OUT_OF_MEMORY, "glBufferStorage()");
+ if (target == GL_EXTERNAL_VIRTUAL_MEMORY_BUFFER_AMD) {
+ /* Even though the interaction between AMD_pinned_memory and
+ * glBufferStorage is not described in the spec, Graham Sellers
+ * said that it should behave the same as glBufferData.
+ */
+ _mesa_error(ctx, GL_INVALID_OPERATION, "glBufferStorage()");
+ }
+ else {
+ _mesa_error(ctx, GL_OUT_OF_MEMORY, "glBufferStorage()");
+ }
}
}
size += 100;
#endif
- ASSERT(ctx->Driver.BufferData);
+ assert(ctx->Driver.BufferData);
if (!ctx->Driver.BufferData(ctx, target, size, data, usage,
GL_MAP_READ_BIT |
GL_MAP_WRITE_BIT |
GL_DYNAMIC_STORAGE_BIT,
bufObj)) {
- _mesa_error(ctx, GL_OUT_OF_MEMORY, "glBufferDataARB()");
+ if (target == GL_EXTERNAL_VIRTUAL_MEMORY_BUFFER_AMD) {
+ /* From GL_AMD_pinned_memory:
+ *
+ * INVALID_OPERATION is generated by BufferData if <target> is
+ * EXTERNAL_VIRTUAL_MEMORY_BUFFER_AMD, and the store cannot be
+ * mapped to the GPU address space.
+ */
+ _mesa_error(ctx, GL_INVALID_OPERATION, "glBufferData()");
+ }
+ else {
+ _mesa_error(ctx, GL_OUT_OF_MEMORY, "glBufferData()");
+ }
}
}
bufObj->Written = GL_TRUE;
- ASSERT(ctx->Driver.BufferSubData);
+ assert(ctx->Driver.BufferSubData);
ctx->Driver.BufferSubData( ctx, offset, size, data, bufObj );
}
return;
}
- ASSERT(ctx->Driver.GetBufferSubData);
+ assert(ctx->Driver.GetBufferSubData);
ctx->Driver.GetBufferSubData( ctx, offset, size, data, bufObj );
}
return NULL;
}
- ASSERT(ctx->Driver.MapBufferRange);
+ assert(ctx->Driver.MapBufferRange);
map = ctx->Driver.MapBufferRange(ctx, 0, bufObj->Size, accessFlags, bufObj,
MAP_USER);
if (!map) {
* This is important because other modules (like VBO) might call
* the driver function directly.
*/
- ASSERT(bufObj->Mappings[MAP_USER].Pointer == map);
- ASSERT(bufObj->Mappings[MAP_USER].Length == bufObj->Size);
- ASSERT(bufObj->Mappings[MAP_USER].Offset == 0);
+ assert(bufObj->Mappings[MAP_USER].Pointer == map);
+ assert(bufObj->Mappings[MAP_USER].Length == bufObj->Size);
+ assert(bufObj->Mappings[MAP_USER].Offset == 0);
bufObj->Mappings[MAP_USER].AccessFlags = accessFlags;
}
status = ctx->Driver.UnmapBuffer(ctx, bufObj, MAP_USER);
bufObj->Mappings[MAP_USER].AccessFlags = 0;
- ASSERT(bufObj->Mappings[MAP_USER].Pointer == NULL);
- ASSERT(bufObj->Mappings[MAP_USER].Offset == 0);
- ASSERT(bufObj->Mappings[MAP_USER].Length == 0);
+ assert(bufObj->Mappings[MAP_USER].Pointer == NULL);
+ assert(bufObj->Mappings[MAP_USER].Offset == 0);
+ assert(bufObj->Mappings[MAP_USER].Length == 0);
return status;
}
return bufObj->Mappings[MAP_USER].Pointer;
}
- ASSERT(ctx->Driver.MapBufferRange);
+ assert(ctx->Driver.MapBufferRange);
map = ctx->Driver.MapBufferRange(ctx, offset, length, access, bufObj,
MAP_USER);
if (!map) {
* This is important because other modules (like VBO) might call
* the driver function directly.
*/
- ASSERT(bufObj->Mappings[MAP_USER].Pointer == map);
- ASSERT(bufObj->Mappings[MAP_USER].Length == length);
- ASSERT(bufObj->Mappings[MAP_USER].Offset == offset);
- ASSERT(bufObj->Mappings[MAP_USER].AccessFlags == access);
+ assert(bufObj->Mappings[MAP_USER].Pointer == map);
+ assert(bufObj->Mappings[MAP_USER].Length == length);
+ assert(bufObj->Mappings[MAP_USER].Offset == offset);
+ assert(bufObj->Mappings[MAP_USER].AccessFlags == access);
}
return map;
return;
}
- ASSERT(bufObj->Mappings[MAP_USER].AccessFlags & GL_MAP_WRITE_BIT);
+ assert(bufObj->Mappings[MAP_USER].AccessFlags & GL_MAP_WRITE_BIT);
if (ctx->Driver.FlushMappedBufferRange)
ctx->Driver.FlushMappedBufferRange(ctx, offset, length, bufObj,
}
}
+/**
+ * Binds a buffer object to a uniform buffer binding point.
+ *
+ * The caller is responsible for flushing vertices and updating
+ * NewDriverState.
+ */
static void
set_ubo_binding(struct gl_context *ctx,
- int index,
- struct gl_buffer_object *bufObj,
- GLintptr offset,
- GLsizeiptr size,
- GLboolean autoSize)
+ struct gl_uniform_buffer_binding *binding,
+ struct gl_buffer_object *bufObj,
+ GLintptr offset,
+ GLsizeiptr size,
+ GLboolean autoSize)
{
- struct gl_uniform_buffer_binding *binding;
+ _mesa_reference_buffer_object(ctx, &binding->BufferObject, bufObj);
+
+ binding->Offset = offset;
+ binding->Size = size;
+ binding->AutomaticSize = autoSize;
+
+ /* If this is a real buffer object, mark it has having been used
+ * at some point as a UBO.
+ */
+ if (size >= 0)
+ bufObj->UsageHistory |= USAGE_UNIFORM_BUFFER;
+}
+
+/**
+ * Binds a buffer object to a uniform buffer binding point.
+ *
+ * Unlike set_ubo_binding(), this function also flushes vertices
+ * and updates NewDriverState. It also checks if the binding
+ * has actually changed before updating it.
+ */
+static void
+bind_uniform_buffer(struct gl_context *ctx,
+ GLuint index,
+ struct gl_buffer_object *bufObj,
+ GLintptr offset,
+ GLsizeiptr size,
+ GLboolean autoSize)
+{
+ struct gl_uniform_buffer_binding *binding =
+ &ctx->UniformBufferBindings[index];
- binding = &ctx->UniformBufferBindings[index];
if (binding->BufferObject == bufObj &&
binding->Offset == offset &&
binding->Size == size &&
FLUSH_VERTICES(ctx, 0);
ctx->NewDriverState |= ctx->DriverFlags.NewUniformBuffer;
- _mesa_reference_buffer_object(ctx, &binding->BufferObject, bufObj);
- binding->Offset = offset;
- binding->Size = size;
- binding->AutomaticSize = autoSize;
+ set_ubo_binding(ctx, binding, bufObj, offset, size, autoSize);
}
/**
if (offset & (ctx->Const.UniformBufferOffsetAlignment - 1)) {
_mesa_error(ctx, GL_INVALID_VALUE,
- "glBindBufferRange(offset misalgned %d/%d)", (int) offset,
+ "glBindBufferRange(offset misaligned %d/%d)", (int) offset,
ctx->Const.UniformBufferOffsetAlignment);
return;
}
}
_mesa_reference_buffer_object(ctx, &ctx->UniformBuffer, bufObj);
- set_ubo_binding(ctx, index, bufObj, offset, size, GL_FALSE);
+ bind_uniform_buffer(ctx, index, bufObj, offset, size, GL_FALSE);
}
}
_mesa_reference_buffer_object(ctx, &ctx->UniformBuffer, bufObj);
+
if (bufObj == ctx->Shared->NullBufferObj)
- set_ubo_binding(ctx, index, bufObj, -1, -1, GL_TRUE);
+ bind_uniform_buffer(ctx, index, bufObj, -1, -1, GL_TRUE);
else
- set_ubo_binding(ctx, index, bufObj, 0, 0, GL_TRUE);
+ bind_uniform_buffer(ctx, index, bufObj, 0, 0, GL_TRUE);
}
/**
} else {
binding->Offset = offset;
binding->Size = size;
+ bufObj->UsageHistory |= USAGE_ATOMIC_COUNTER_BUFFER;
}
}
if (offset & (ATOMIC_COUNTER_SIZE - 1)) {
_mesa_error(ctx, GL_INVALID_VALUE,
- "%s(offset misalgned %d/%d)", name, (int) offset,
+ "%s(offset misaligned %d/%d)", name, (int) offset,
ATOMIC_COUNTER_SIZE);
return;
}
set_atomic_buffer_binding(ctx, binding, bufObj, offset, size);
}
+static inline bool
+bind_buffers_check_offset_and_size(struct gl_context *ctx,
+ GLuint index,
+ const GLintptr *offsets,
+ const GLsizeiptr *sizes)
+{
+ if (offsets[index] < 0) {
+ /* The ARB_multi_bind spec says:
+ *
+ * "An INVALID_VALUE error is generated by BindBuffersRange if any
+ * value in <offsets> is less than zero (per binding)."
+ */
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "glBindBuffersRange(offsets[%u]=%" PRId64 " < 0)",
+ index, (int64_t) offsets[index]);
+ return false;
+ }
+
+ if (sizes[index] <= 0) {
+ /* The ARB_multi_bind spec says:
+ *
+ * "An INVALID_VALUE error is generated by BindBuffersRange if any
+ * value in <sizes> is less than or equal to zero (per binding)."
+ */
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "glBindBuffersRange(sizes[%u]=%" PRId64 " <= 0)",
+ index, (int64_t) sizes[index]);
+ return false;
+ }
+
+ return true;
+}
+
+static bool
+error_check_bind_uniform_buffers(struct gl_context *ctx,
+ GLuint first, GLsizei count,
+ const char *caller)
+{
+ if (!ctx->Extensions.ARB_uniform_buffer_object) {
+ _mesa_error(ctx, GL_INVALID_ENUM,
+ "%s(target=GL_UNIFORM_BUFFER)", caller);
+ return false;
+ }
+
+ /* The ARB_multi_bind_spec says:
+ *
+ * "An INVALID_OPERATION error is generated if <first> + <count> is
+ * greater than the number of target-specific indexed binding points,
+ * as described in section 6.7.1."
+ */
+ if (first + count > ctx->Const.MaxUniformBufferBindings) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "%s(first=%u + count=%d > the value of "
+ "GL_MAX_UNIFORM_BUFFER_BINDINGS=%u)",
+ caller, first, count,
+ ctx->Const.MaxUniformBufferBindings);
+ return false;
+ }
+
+ return true;
+}
+
+/**
+ * Unbind all uniform buffers in the range
+ * <first> through <first>+<count>-1
+ */
+static void
+unbind_uniform_buffers(struct gl_context *ctx, GLuint first, GLsizei count)
+{
+ struct gl_buffer_object *bufObj = ctx->Shared->NullBufferObj;
+ GLint i;
+
+ for (i = 0; i < count; i++)
+ set_ubo_binding(ctx, &ctx->UniformBufferBindings[first + i],
+ bufObj, -1, -1, GL_TRUE);
+}
+
+static void
+bind_uniform_buffers_base(struct gl_context *ctx, GLuint first, GLsizei count,
+ const GLuint *buffers)
+{
+ GLint i;
+
+ if (!error_check_bind_uniform_buffers(ctx, first, count, "glBindBuffersBase"))
+ return;
+
+ /* Assume that at least one binding will be changed */
+ FLUSH_VERTICES(ctx, 0);
+ ctx->NewDriverState |= ctx->DriverFlags.NewUniformBuffer;
+
+ if (!buffers) {
+ /* The ARB_multi_bind spec says:
+ *
+ * "If <buffers> is NULL, all bindings from <first> through
+ * <first>+<count>-1 are reset to their unbound (zero) state."
+ */
+ unbind_uniform_buffers(ctx, first, count);
+ return;
+ }
+
+ /* Note that the error semantics for multi-bind commands differ from
+ * those of other GL commands.
+ *
+ * The Issues section in the ARB_multi_bind spec says:
+ *
+ * "(11) Typically, OpenGL specifies that if an error is generated by a
+ * command, that command has no effect. This is somewhat
+ * unfortunate for multi-bind commands, because it would require a
+ * first pass to scan the entire list of bound objects for errors
+ * and then a second pass to actually perform the bindings.
+ * Should we have different error semantics?
+ *
+ * RESOLVED: Yes. In this specification, when the parameters for
+ * one of the <count> binding points are invalid, that binding point
+ * is not updated and an error will be generated. However, other
+ * binding points in the same command will be updated if their
+ * parameters are valid and no other error occurs."
+ */
+
+ _mesa_begin_bufferobj_lookups(ctx);
+
+ for (i = 0; i < count; i++) {
+ struct gl_uniform_buffer_binding *binding =
+ &ctx->UniformBufferBindings[first + i];
+ struct gl_buffer_object *bufObj;
+
+ if (binding->BufferObject && binding->BufferObject->Name == buffers[i])
+ bufObj = binding->BufferObject;
+ else
+ bufObj = _mesa_multi_bind_lookup_bufferobj(ctx, buffers, i,
+ "glBindBuffersBase");
+
+ if (bufObj) {
+ if (bufObj == ctx->Shared->NullBufferObj)
+ set_ubo_binding(ctx, binding, bufObj, -1, -1, GL_TRUE);
+ else
+ set_ubo_binding(ctx, binding, bufObj, 0, 0, GL_TRUE);
+ }
+ }
+
+ _mesa_end_bufferobj_lookups(ctx);
+}
+
+static void
+bind_uniform_buffers_range(struct gl_context *ctx, GLuint first, GLsizei count,
+ const GLuint *buffers,
+ const GLintptr *offsets, const GLsizeiptr *sizes)
+{
+ GLint i;
+
+ if (!error_check_bind_uniform_buffers(ctx, first, count,
+ "glBindBuffersRange"))
+ return;
+
+ /* Assume that at least one binding will be changed */
+ FLUSH_VERTICES(ctx, 0);
+ ctx->NewDriverState |= ctx->DriverFlags.NewUniformBuffer;
+
+ if (!buffers) {
+ /* The ARB_multi_bind spec says:
+ *
+ * "If <buffers> is NULL, all bindings from <first> through
+ * <first>+<count>-1 are reset to their unbound (zero) state.
+ * In this case, the offsets and sizes associated with the
+ * binding points are set to default values, ignoring
+ * <offsets> and <sizes>."
+ */
+ unbind_uniform_buffers(ctx, first, count);
+ return;
+ }
+
+ /* Note that the error semantics for multi-bind commands differ from
+ * those of other GL commands.
+ *
+ * The Issues section in the ARB_multi_bind spec says:
+ *
+ * "(11) Typically, OpenGL specifies that if an error is generated by a
+ * command, that command has no effect. This is somewhat
+ * unfortunate for multi-bind commands, because it would require a
+ * first pass to scan the entire list of bound objects for errors
+ * and then a second pass to actually perform the bindings.
+ * Should we have different error semantics?
+ *
+ * RESOLVED: Yes. In this specification, when the parameters for
+ * one of the <count> binding points are invalid, that binding point
+ * is not updated and an error will be generated. However, other
+ * binding points in the same command will be updated if their
+ * parameters are valid and no other error occurs."
+ */
+
+ _mesa_begin_bufferobj_lookups(ctx);
+
+ for (i = 0; i < count; i++) {
+ struct gl_uniform_buffer_binding *binding =
+ &ctx->UniformBufferBindings[first + i];
+ struct gl_buffer_object *bufObj;
+
+ if (!bind_buffers_check_offset_and_size(ctx, i, offsets, sizes))
+ continue;
+
+ /* The ARB_multi_bind spec says:
+ *
+ * "An INVALID_VALUE error is generated by BindBuffersRange if any
+ * pair of values in <offsets> and <sizes> does not respectively
+ * satisfy the constraints described for those parameters for the
+ * specified target, as described in section 6.7.1 (per binding)."
+ *
+ * Section 6.7.1 refers to table 6.5, which says:
+ *
+ * "┌───────────────────────────────────────────────────────────────┐
+ * │ Uniform buffer array bindings (see sec. 7.6) │
+ * ├─────────────────────┬─────────────────────────────────────────┤
+ * │ ... │ ... │
+ * │ offset restriction │ multiple of value of UNIFORM_BUFFER_- │
+ * │ │ OFFSET_ALIGNMENT │
+ * │ ... │ ... │
+ * │ size restriction │ none │
+ * └─────────────────────┴─────────────────────────────────────────┘"
+ */
+ if (offsets[i] & (ctx->Const.UniformBufferOffsetAlignment - 1)) {
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "glBindBuffersRange(offsets[%u]=%" PRId64
+ " is misaligned; it must be a multiple of the value of "
+ "GL_UNIFORM_BUFFER_OFFSET_ALIGNMENT=%u when "
+ "target=GL_UNIFORM_BUFFER)",
+ i, (int64_t) offsets[i],
+ ctx->Const.UniformBufferOffsetAlignment);
+ continue;
+ }
+
+ if (binding->BufferObject && binding->BufferObject->Name == buffers[i])
+ bufObj = binding->BufferObject;
+ else
+ bufObj = _mesa_multi_bind_lookup_bufferobj(ctx, buffers, i,
+ "glBindBuffersRange");
+
+ if (bufObj) {
+ if (bufObj == ctx->Shared->NullBufferObj)
+ set_ubo_binding(ctx, binding, bufObj, -1, -1, GL_FALSE);
+ else
+ set_ubo_binding(ctx, binding, bufObj,
+ offsets[i], sizes[i], GL_FALSE);
+ }
+ }
+
+ _mesa_end_bufferobj_lookups(ctx);
+}
+
+static bool
+error_check_bind_xfb_buffers(struct gl_context *ctx,
+ struct gl_transform_feedback_object *tfObj,
+ GLuint first, GLsizei count, const char *caller)
+{
+ if (!ctx->Extensions.EXT_transform_feedback) {
+ _mesa_error(ctx, GL_INVALID_ENUM,
+ "%s(target=GL_TRANSFORM_FEEDBACK_BUFFER)", caller);
+ return false;
+ }
+
+ /* Page 398 of the PDF of the OpenGL 4.4 (Core Profile) spec says:
+ *
+ * "An INVALID_OPERATION error is generated :
+ *
+ * ...
+ * • by BindBufferRange or BindBufferBase if target is TRANSFORM_-
+ * FEEDBACK_BUFFER and transform feedback is currently active."
+ *
+ * We assume that this is also meant to apply to BindBuffersRange
+ * and BindBuffersBase.
+ */
+ if (tfObj->Active) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "%s(Changing transform feedback buffers while "
+ "transform feedback is active)", caller);
+ return false;
+ }
+
+ /* The ARB_multi_bind_spec says:
+ *
+ * "An INVALID_OPERATION error is generated if <first> + <count> is
+ * greater than the number of target-specific indexed binding points,
+ * as described in section 6.7.1."
+ */
+ if (first + count > ctx->Const.MaxTransformFeedbackBuffers) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "%s(first=%u + count=%d > the value of "
+ "GL_MAX_TRANSFORM_FEEDBACK_BUFFERS=%u)",
+ caller, first, count,
+ ctx->Const.MaxTransformFeedbackBuffers);
+ return false;
+ }
+
+ return true;
+}
+
+/**
+ * Unbind all transform feedback buffers in the range
+ * <first> through <first>+<count>-1
+ */
+static void
+unbind_xfb_buffers(struct gl_context *ctx,
+ struct gl_transform_feedback_object *tfObj,
+ GLuint first, GLsizei count)
+{
+ struct gl_buffer_object * const bufObj = ctx->Shared->NullBufferObj;
+ GLint i;
+
+ for (i = 0; i < count; i++)
+ _mesa_set_transform_feedback_binding(ctx, tfObj, first + i,
+ bufObj, 0, 0);
+}
+
+static void
+bind_xfb_buffers_base(struct gl_context *ctx,
+ GLuint first, GLsizei count,
+ const GLuint *buffers)
+{
+ struct gl_transform_feedback_object *tfObj =
+ ctx->TransformFeedback.CurrentObject;
+ GLint i;
+
+ if (!error_check_bind_xfb_buffers(ctx, tfObj, first, count,
+ "glBindBuffersBase"))
+ return;
+
+ /* Assume that at least one binding will be changed */
+ FLUSH_VERTICES(ctx, 0);
+ ctx->NewDriverState |= ctx->DriverFlags.NewTransformFeedback;
+
+ if (!buffers) {
+ /* The ARB_multi_bind spec says:
+ *
+ * "If <buffers> is NULL, all bindings from <first> through
+ * <first>+<count>-1 are reset to their unbound (zero) state."
+ */
+ unbind_xfb_buffers(ctx, tfObj, first, count);
+ return;
+ }
+
+ /* Note that the error semantics for multi-bind commands differ from
+ * those of other GL commands.
+ *
+ * The Issues section in the ARB_multi_bind spec says:
+ *
+ * "(11) Typically, OpenGL specifies that if an error is generated by a
+ * command, that command has no effect. This is somewhat
+ * unfortunate for multi-bind commands, because it would require a
+ * first pass to scan the entire list of bound objects for errors
+ * and then a second pass to actually perform the bindings.
+ * Should we have different error semantics?
+ *
+ * RESOLVED: Yes. In this specification, when the parameters for
+ * one of the <count> binding points are invalid, that binding point
+ * is not updated and an error will be generated. However, other
+ * binding points in the same command will be updated if their
+ * parameters are valid and no other error occurs."
+ */
+
+ _mesa_begin_bufferobj_lookups(ctx);
+
+ for (i = 0; i < count; i++) {
+ struct gl_buffer_object * const boundBufObj = tfObj->Buffers[first + i];
+ struct gl_buffer_object *bufObj;
+
+ if (boundBufObj && boundBufObj->Name == buffers[i])
+ bufObj = boundBufObj;
+ else
+ bufObj = _mesa_multi_bind_lookup_bufferobj(ctx, buffers, i,
+ "glBindBuffersBase");
+
+ if (bufObj)
+ _mesa_set_transform_feedback_binding(ctx, tfObj, first + i,
+ bufObj, 0, 0);
+ }
+
+ _mesa_end_bufferobj_lookups(ctx);
+}
+
+static void
+bind_xfb_buffers_range(struct gl_context *ctx,
+ GLuint first, GLsizei count,
+ const GLuint *buffers,
+ const GLintptr *offsets,
+ const GLsizeiptr *sizes)
+{
+ struct gl_transform_feedback_object *tfObj =
+ ctx->TransformFeedback.CurrentObject;
+ GLint i;
+
+ if (!error_check_bind_xfb_buffers(ctx, tfObj, first, count,
+ "glBindBuffersRange"))
+ return;
+
+ /* Assume that at least one binding will be changed */
+ FLUSH_VERTICES(ctx, 0);
+ ctx->NewDriverState |= ctx->DriverFlags.NewTransformFeedback;
+
+ if (!buffers) {
+ /* The ARB_multi_bind spec says:
+ *
+ * "If <buffers> is NULL, all bindings from <first> through
+ * <first>+<count>-1 are reset to their unbound (zero) state.
+ * In this case, the offsets and sizes associated with the
+ * binding points are set to default values, ignoring
+ * <offsets> and <sizes>."
+ */
+ unbind_xfb_buffers(ctx, tfObj, first, count);
+ return;
+ }
+
+ /* Note that the error semantics for multi-bind commands differ from
+ * those of other GL commands.
+ *
+ * The Issues section in the ARB_multi_bind spec says:
+ *
+ * "(11) Typically, OpenGL specifies that if an error is generated by a
+ * command, that command has no effect. This is somewhat
+ * unfortunate for multi-bind commands, because it would require a
+ * first pass to scan the entire list of bound objects for errors
+ * and then a second pass to actually perform the bindings.
+ * Should we have different error semantics?
+ *
+ * RESOLVED: Yes. In this specification, when the parameters for
+ * one of the <count> binding points are invalid, that binding point
+ * is not updated and an error will be generated. However, other
+ * binding points in the same command will be updated if their
+ * parameters are valid and no other error occurs."
+ */
+
+ _mesa_begin_bufferobj_lookups(ctx);
+
+ for (i = 0; i < count; i++) {
+ const GLuint index = first + i;
+ struct gl_buffer_object * const boundBufObj = tfObj->Buffers[index];
+ struct gl_buffer_object *bufObj;
+
+ if (!bind_buffers_check_offset_and_size(ctx, i, offsets, sizes))
+ continue;
+
+ /* The ARB_multi_bind spec says:
+ *
+ * "An INVALID_VALUE error is generated by BindBuffersRange if any
+ * pair of values in <offsets> and <sizes> does not respectively
+ * satisfy the constraints described for those parameters for the
+ * specified target, as described in section 6.7.1 (per binding)."
+ *
+ * Section 6.7.1 refers to table 6.5, which says:
+ *
+ * "┌───────────────────────────────────────────────────────────────┐
+ * │ Transform feedback array bindings (see sec. 13.2.2) │
+ * ├───────────────────────┬───────────────────────────────────────┤
+ * │ ... │ ... │
+ * │ offset restriction │ multiple of 4 │
+ * │ ... │ ... │
+ * │ size restriction │ multiple of 4 │
+ * └───────────────────────┴───────────────────────────────────────┘"
+ */
+ if (offsets[i] & 0x3) {
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "glBindBuffersRange(offsets[%u]=%" PRId64
+ " is misaligned; it must be a multiple of 4 when "
+ "target=GL_TRANSFORM_FEEDBACK_BUFFER)",
+ i, (int64_t) offsets[i]);
+ continue;
+ }
+
+ if (sizes[i] & 0x3) {
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "glBindBuffersRange(sizes[%u]=%" PRId64
+ " is misaligned; it must be a multiple of 4 when "
+ "target=GL_TRANSFORM_FEEDBACK_BUFFER)",
+ i, (int64_t) sizes[i]);
+ continue;
+ }
+
+ if (boundBufObj && boundBufObj->Name == buffers[i])
+ bufObj = boundBufObj;
+ else
+ bufObj = _mesa_multi_bind_lookup_bufferobj(ctx, buffers, i,
+ "glBindBuffersRange");
+
+ if (bufObj)
+ _mesa_set_transform_feedback_binding(ctx, tfObj, index, bufObj,
+ offsets[i], sizes[i]);
+ }
+
+ _mesa_end_bufferobj_lookups(ctx);
+}
+
+static bool
+error_check_bind_atomic_buffers(struct gl_context *ctx,
+ GLuint first, GLsizei count,
+ const char *caller)
+{
+ if (!ctx->Extensions.ARB_shader_atomic_counters) {
+ _mesa_error(ctx, GL_INVALID_ENUM,
+ "%s(target=GL_ATOMIC_COUNTER_BUFFER)", caller);
+ return false;
+ }
+
+ /* The ARB_multi_bind_spec says:
+ *
+ * "An INVALID_OPERATION error is generated if <first> + <count> is
+ * greater than the number of target-specific indexed binding points,
+ * as described in section 6.7.1."
+ */
+ if (first + count > ctx->Const.MaxAtomicBufferBindings) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "%s(first=%u + count=%d > the value of "
+ "GL_MAX_ATOMIC_BUFFER_BINDINGS=%u)",
+ caller, first, count, ctx->Const.MaxAtomicBufferBindings);
+ return false;
+ }
+
+ return true;
+}
+
+/**
+ * Unbind all atomic counter buffers in the range
+ * <first> through <first>+<count>-1
+ */
+static void
+unbind_atomic_buffers(struct gl_context *ctx, GLuint first, GLsizei count)
+{
+ struct gl_buffer_object * const bufObj = ctx->Shared->NullBufferObj;
+ GLint i;
+
+ for (i = 0; i < count; i++)
+ set_atomic_buffer_binding(ctx, &ctx->AtomicBufferBindings[first + i],
+ bufObj, -1, -1);
+}
+
+static void
+bind_atomic_buffers_base(struct gl_context *ctx,
+ GLuint first,
+ GLsizei count,
+ const GLuint *buffers)
+{
+ GLint i;
+
+ if (!error_check_bind_atomic_buffers(ctx, first, count,
+ "glBindBuffersBase"))
+ return;
+
+ /* Assume that at least one binding will be changed */
+ FLUSH_VERTICES(ctx, 0);
+ ctx->NewDriverState |= ctx->DriverFlags.NewAtomicBuffer;
+
+ if (!buffers) {
+ /* The ARB_multi_bind spec says:
+ *
+ * "If <buffers> is NULL, all bindings from <first> through
+ * <first>+<count>-1 are reset to their unbound (zero) state."
+ */
+ unbind_atomic_buffers(ctx, first, count);
+ return;
+ }
+
+ /* Note that the error semantics for multi-bind commands differ from
+ * those of other GL commands.
+ *
+ * The Issues section in the ARB_multi_bind spec says:
+ *
+ * "(11) Typically, OpenGL specifies that if an error is generated by a
+ * command, that command has no effect. This is somewhat
+ * unfortunate for multi-bind commands, because it would require a
+ * first pass to scan the entire list of bound objects for errors
+ * and then a second pass to actually perform the bindings.
+ * Should we have different error semantics?
+ *
+ * RESOLVED: Yes. In this specification, when the parameters for
+ * one of the <count> binding points are invalid, that binding point
+ * is not updated and an error will be generated. However, other
+ * binding points in the same command will be updated if their
+ * parameters are valid and no other error occurs."
+ */
+
+ _mesa_begin_bufferobj_lookups(ctx);
+
+ for (i = 0; i < count; i++) {
+ struct gl_atomic_buffer_binding *binding =
+ &ctx->AtomicBufferBindings[first + i];
+ struct gl_buffer_object *bufObj;
+
+ if (binding->BufferObject && binding->BufferObject->Name == buffers[i])
+ bufObj = binding->BufferObject;
+ else
+ bufObj = _mesa_multi_bind_lookup_bufferobj(ctx, buffers, i,
+ "glBindBuffersBase");
+
+ if (bufObj)
+ set_atomic_buffer_binding(ctx, binding, bufObj, 0, 0);
+ }
+
+ _mesa_end_bufferobj_lookups(ctx);
+}
+
+static void
+bind_atomic_buffers_range(struct gl_context *ctx,
+ GLuint first,
+ GLsizei count,
+ const GLuint *buffers,
+ const GLintptr *offsets,
+ const GLsizeiptr *sizes)
+{
+ GLint i;
+
+ if (!error_check_bind_atomic_buffers(ctx, first, count,
+ "glBindBuffersRange"))
+ return;
+
+ /* Assume that at least one binding will be changed */
+ FLUSH_VERTICES(ctx, 0);
+ ctx->NewDriverState |= ctx->DriverFlags.NewAtomicBuffer;
+
+ if (!buffers) {
+ /* The ARB_multi_bind spec says:
+ *
+ * "If <buffers> is NULL, all bindings from <first> through
+ * <first>+<count>-1 are reset to their unbound (zero) state.
+ * In this case, the offsets and sizes associated with the
+ * binding points are set to default values, ignoring
+ * <offsets> and <sizes>."
+ */
+ unbind_atomic_buffers(ctx, first, count);
+ return;
+ }
+
+ /* Note that the error semantics for multi-bind commands differ from
+ * those of other GL commands.
+ *
+ * The Issues section in the ARB_multi_bind spec says:
+ *
+ * "(11) Typically, OpenGL specifies that if an error is generated by a
+ * command, that command has no effect. This is somewhat
+ * unfortunate for multi-bind commands, because it would require a
+ * first pass to scan the entire list of bound objects for errors
+ * and then a second pass to actually perform the bindings.
+ * Should we have different error semantics?
+ *
+ * RESOLVED: Yes. In this specification, when the parameters for
+ * one of the <count> binding points are invalid, that binding point
+ * is not updated and an error will be generated. However, other
+ * binding points in the same command will be updated if their
+ * parameters are valid and no other error occurs."
+ */
+
+ _mesa_begin_bufferobj_lookups(ctx);
+
+ for (i = 0; i < count; i++) {
+ struct gl_atomic_buffer_binding *binding =
+ &ctx->AtomicBufferBindings[first + i];
+ struct gl_buffer_object *bufObj;
+
+ if (!bind_buffers_check_offset_and_size(ctx, i, offsets, sizes))
+ continue;
+
+ /* The ARB_multi_bind spec says:
+ *
+ * "An INVALID_VALUE error is generated by BindBuffersRange if any
+ * pair of values in <offsets> and <sizes> does not respectively
+ * satisfy the constraints described for those parameters for the
+ * specified target, as described in section 6.7.1 (per binding)."
+ *
+ * Section 6.7.1 refers to table 6.5, which says:
+ *
+ * "┌───────────────────────────────────────────────────────────────┐
+ * │ Atomic counter array bindings (see sec. 7.7.2) │
+ * ├───────────────────────┬───────────────────────────────────────┤
+ * │ ... │ ... │
+ * │ offset restriction │ multiple of 4 │
+ * │ ... │ ... │
+ * │ size restriction │ none │
+ * └───────────────────────┴───────────────────────────────────────┘"
+ */
+ if (offsets[i] & (ATOMIC_COUNTER_SIZE - 1)) {
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "glBindBuffersRange(offsets[%u]=%" PRId64
+ " is misaligned; it must be a multiple of %d when "
+ "target=GL_ATOMIC_COUNTER_BUFFER)",
+ i, (int64_t) offsets[i], ATOMIC_COUNTER_SIZE);
+ continue;
+ }
+
+ if (binding->BufferObject && binding->BufferObject->Name == buffers[i])
+ bufObj = binding->BufferObject;
+ else
+ bufObj = _mesa_multi_bind_lookup_bufferobj(ctx, buffers, i,
+ "glBindBuffersRange");
+
+ if (bufObj)
+ set_atomic_buffer_binding(ctx, binding, bufObj, offsets[i], sizes[i]);
+ }
+
+ _mesa_end_bufferobj_lookups(ctx);
+}
+
void GLAPIENTRY
_mesa_BindBufferRange(GLenum target, GLuint index,
GLuint buffer, GLintptr offset, GLsizeiptr size)
const GLuint *buffers,
const GLintptr *offsets, const GLsizeiptr *sizes)
{
+ GET_CURRENT_CONTEXT(ctx);
+
+ switch (target) {
+ case GL_TRANSFORM_FEEDBACK_BUFFER:
+ bind_xfb_buffers_range(ctx, first, count, buffers, offsets, sizes);
+ return;
+ case GL_UNIFORM_BUFFER:
+ bind_uniform_buffers_range(ctx, first, count, buffers, offsets, sizes);
+ return;
+ case GL_ATOMIC_COUNTER_BUFFER:
+ bind_atomic_buffers_range(ctx, first, count, buffers,
+ offsets, sizes);
+ return;
+ default:
+ _mesa_error(ctx, GL_INVALID_ENUM, "glBindBuffersRange(target=%s)",
+ _mesa_lookup_enum_by_nr(target));
+ break;
+ }
}
void GLAPIENTRY
_mesa_BindBuffersBase(GLenum target, GLuint first, GLsizei count,
const GLuint *buffers)
{
+ GET_CURRENT_CONTEXT(ctx);
+
+ switch (target) {
+ case GL_TRANSFORM_FEEDBACK_BUFFER:
+ bind_xfb_buffers_base(ctx, first, count, buffers);
+ return;
+ case GL_UNIFORM_BUFFER:
+ bind_uniform_buffers_base(ctx, first, count, buffers);
+ return;
+ case GL_ATOMIC_COUNTER_BUFFER:
+ bind_atomic_buffers_base(ctx, first, count, buffers);
+ return;
+ default:
+ _mesa_error(ctx, GL_INVALID_ENUM, "glBindBuffersBase(target=%s)",
+ _mesa_lookup_enum_by_nr(target));
+ break;
+ }
}
void GLAPIENTRY
projects / mesa.git / blobdiff