void WebGLContext::BindBufferBase(GLenum target, GLuint index,
WebGLBuffer* buffer) {
const FuncScope funcScope(*this, "bindBufferBase");
if (IsContextLost()) return;
if (buffer && !ValidateObject("buffer", *buffer)) return;
WebGLRefPtr<WebGLBuffer>* genericBinding;
IndexedBufferBinding* indexedBinding;
if (!ValidateIndexedBufferBinding(target, index, &genericBinding,
&indexedBinding)) {
return;
}
if (buffer && !buffer->ValidateCanBindToTarget(target)) return;
////
gl->fBindBufferBase(target, index, buffer ? buffer->mGLName : 0);
////
WebGLBuffer::SetSlot(target, buffer, genericBinding);
WebGLBuffer::SetSlot(target, buffer, &indexedBinding->mBufferBinding);
indexedBinding->mRangeStart = 0;
indexedBinding->mRangeSize = 0;
if (buffer) {
buffer->SetContentAfterBind(target);
}
}
void
WebGLContext::BindBufferBase(GLenum target, GLuint index, WebGLBuffer* buffer)
{
const char funcName[] = "bindBufferBase";
if (IsContextLost())
return;
if (!ValidateObjectAllowDeletedOrNull(funcName, buffer))
return;
if (buffer && buffer->IsDeleted())
return ErrorInvalidOperation("%s: Cannot bind a deleted object.", funcName);
WebGLRefPtr<WebGLBuffer>* genericBinding;
IndexedBufferBinding* indexedBinding;
if (!ValidateIndexedBufferBinding(funcName, target, index, &genericBinding,
&indexedBinding))
{
return;
}
if (buffer && !buffer->ValidateCanBindToTarget(funcName, target))
return;
////
gl->MakeCurrent();
gl->fBindBufferBase(target, index, buffer ? buffer->mGLName : 0);
////
*genericBinding = buffer;
indexedBinding->mBufferBinding = buffer;
indexedBinding->mRangeStart = 0;
indexedBinding->mRangeSize = 0;
if (buffer) {
buffer->SetContentAfterBind(target);
}
switch (target) {
case LOCAL_GL_TRANSFORM_FEEDBACK_BUFFER:
mBoundTransformFeedback->OnIndexedBindingsChanged();
break;
case LOCAL_GL_UNIFORM:
OnUBIndexedBindingsChanged();
break;
}
}
void
WebGLContext::BindBufferRange(GLenum target, GLuint index, WebGLBuffer* buffer,
WebGLintptr offset, WebGLsizeiptr size)
{
const char funcName[] = "bindBufferRange";
if (IsContextLost())
return;
if (!ValidateObjectAllowDeletedOrNull(funcName, buffer))
return;
if (buffer && buffer->IsDeleted())
return ErrorInvalidOperation("%s: Cannot bind a deleted object.", funcName);
if (!ValidateNonNegative(funcName, "offset", offset) ||
!ValidateNonNegative(funcName, "size", size))
{
return;
}
WebGLRefPtr<WebGLBuffer>* genericBinding;
IndexedBufferBinding* indexedBinding;
if (!ValidateIndexedBufferBinding(funcName, target, index, &genericBinding,
&indexedBinding))
{
return;
}
if (buffer && !buffer->ValidateCanBindToTarget(funcName, target))
return;
////
gl->MakeCurrent();
switch (target) {
case LOCAL_GL_TRANSFORM_FEEDBACK_BUFFER:
if (offset % 4 != 0 || size % 4 != 0) {
ErrorInvalidValue("%s: For %s, `offset` and `size` must be multiples of 4.",
funcName, "TRANSFORM_FEEDBACK_BUFFER");
return;
}
break;
case LOCAL_GL_UNIFORM_BUFFER:
{
GLuint offsetAlignment = 0;
gl->GetUIntegerv(LOCAL_GL_UNIFORM_BUFFER_OFFSET_ALIGNMENT, &offsetAlignment);
if (offset % offsetAlignment != 0) {
ErrorInvalidValue("%s: For %s, `offset` must be a multiple of %s.",
funcName, "UNIFORM_BUFFER",
"UNIFORM_BUFFER_OFFSET_ALIGNMENT");
return;
}
}
break;
}
////
#ifdef XP_MACOSX
if (buffer && buffer->Content() == WebGLBuffer::Kind::Undefined &&
gl->WorkAroundDriverBugs())
{
// BindBufferRange will fail if the buffer's contents is undefined.
// Bind so driver initializes the buffer.
gl->fBindBuffer(target, buffer->mGLName);
}
#endif
gl->fBindBufferRange(target, index, buffer ? buffer->mGLName : 0, offset, size);
////
*genericBinding = buffer;
indexedBinding->mBufferBinding = buffer;
indexedBinding->mRangeStart = offset;
indexedBinding->mRangeSize = size;
if (buffer) {
buffer->SetContentAfterBind(target);
}
switch (target) {
case LOCAL_GL_TRANSFORM_FEEDBACK_BUFFER:
mBoundTransformFeedback->OnIndexedBindingsChanged();
break;
case LOCAL_GL_UNIFORM:
OnUBIndexedBindingsChanged();
break;
}
}
void WebGLContext::BindBufferRange(GLenum target, GLuint index,
WebGLBuffer* buffer, WebGLintptr offset,
WebGLsizeiptr size) {
const FuncScope funcScope(*this, "bindBufferRange");
if (IsContextLost()) return;
if (buffer && !ValidateObject("buffer", *buffer)) return;
if (!ValidateNonNegative("offset", offset) ||
!ValidateNonNegative("size", size)) {
return;
}
WebGLRefPtr<WebGLBuffer>* genericBinding;
IndexedBufferBinding* indexedBinding;
if (!ValidateIndexedBufferBinding(target, index, &genericBinding,
&indexedBinding)) {
return;
}
if (buffer && !buffer->ValidateCanBindToTarget(target)) return;
if (buffer && !size) {
ErrorInvalidValue("Size must be non-zero for non-null buffer.");
return;
}
////
switch (target) {
case LOCAL_GL_TRANSFORM_FEEDBACK_BUFFER:
if (offset % 4 != 0 || size % 4 != 0) {
ErrorInvalidValue("For %s, `offset` and `size` must be multiples of 4.",
"TRANSFORM_FEEDBACK_BUFFER");
return;
}
break;
case LOCAL_GL_UNIFORM_BUFFER: {
GLuint offsetAlignment = 0;
gl->GetUIntegerv(LOCAL_GL_UNIFORM_BUFFER_OFFSET_ALIGNMENT,
&offsetAlignment);
if (offset % offsetAlignment != 0) {
ErrorInvalidValue("For %s, `offset` must be a multiple of %s.",
"UNIFORM_BUFFER", "UNIFORM_BUFFER_OFFSET_ALIGNMENT");
return;
}
} break;
}
////
#ifdef XP_MACOSX
if (buffer && buffer->Content() == WebGLBuffer::Kind::Undefined &&
gl->WorkAroundDriverBugs()) {
// BindBufferRange will fail if the buffer's contents is undefined.
// Bind so driver initializes the buffer.
gl->fBindBuffer(target, buffer->mGLName);
}
#endif
gl->fBindBufferRange(target, index, buffer ? buffer->mGLName : 0, offset,
size);
////
WebGLBuffer::SetSlot(target, buffer, genericBinding);
WebGLBuffer::SetSlot(target, buffer, &indexedBinding->mBufferBinding);
indexedBinding->mRangeStart = offset;
indexedBinding->mRangeSize = size;
if (buffer) {
buffer->SetContentAfterBind(target);
}
}
