void
WebGLContext::DeleteBuffer(WebGLBuffer* buffer)
{
if (IsContextLost())
return;
if (!ValidateObjectAllowDeletedOrNull("deleteBuffer", buffer))
return;
if (!buffer || buffer->IsDeleted())
return;
////
const auto fnClearIfBuffer = [&](WebGLRefPtr<WebGLBuffer>& bindPoint) {
if (bindPoint == buffer) {
bindPoint = nullptr;
}
};
fnClearIfBuffer(mBoundArrayBuffer);
fnClearIfBuffer(mBoundVertexArray->mElementArrayBuffer);
// WebGL binding points
if (IsWebGL2()) {
fnClearIfBuffer(mBoundCopyReadBuffer);
fnClearIfBuffer(mBoundCopyWriteBuffer);
fnClearIfBuffer(mBoundPixelPackBuffer);
fnClearIfBuffer(mBoundPixelUnpackBuffer);
fnClearIfBuffer(mBoundUniformBuffer);
fnClearIfBuffer(mBoundTransformFeedback->mGenericBufferBinding);
if (!mBoundTransformFeedback->mIsActive) {
for (auto& binding : mBoundTransformFeedback->mIndexedBindings) {
fnClearIfBuffer(binding.mBufferBinding);
}
}
for (auto& binding : mIndexedUniformBufferBindings) {
fnClearIfBuffer(binding.mBufferBinding);
}
}
for (int32_t i = 0; i < mGLMaxVertexAttribs; i++) {
if (mBoundVertexArray->HasAttrib(i)) {
fnClearIfBuffer(mBoundVertexArray->mAttribs[i].mBuf);
}
}
////
buffer->RequestDelete();
}
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;
}
}
bool
WebGL2Context::IsTransformFeedback(WebGLTransformFeedback* tf)
{
if (IsContextLost())
return false;
if (!ValidateObjectAllowDeletedOrNull("isTransformFeedback", tf))
return false;
if (!tf || tf->IsDeleted())
return false;
MakeContextCurrent();
return gl->fIsTransformFeedback(tf->mGLName);
}
void
WebGL2Context::DeleteTransformFeedback(WebGLTransformFeedback* tf)
{
if (IsContextLost())
return;
if (!ValidateObjectAllowDeletedOrNull("deleteTransformFeedback", tf))
return;
if (!tf || tf->IsDeleted())
return;
if (mBoundTransformFeedback == tf)
BindTransformFeedback(LOCAL_GL_TRANSFORM_FEEDBACK, nullptr);
tf->RequestDelete();
}
void
WebGLContext::BindTexture(GLenum rawTarget, WebGLTexture* newTex)
{
if (IsContextLost())
return;
if (!ValidateObjectAllowDeletedOrNull("bindTexture", newTex))
return;
// Need to check rawTarget first before comparing against newTex->Target() as
// newTex->Target() returns a TexTarget, which will assert on invalid value.
WebGLRefPtr<WebGLTexture>* currentTexPtr = nullptr;
switch (rawTarget) {
case LOCAL_GL_TEXTURE_2D:
currentTexPtr = &mBound2DTextures[mActiveTexture];
break;
case LOCAL_GL_TEXTURE_CUBE_MAP:
currentTexPtr = &mBoundCubeMapTextures[mActiveTexture];
break;
case LOCAL_GL_TEXTURE_3D:
if (!IsWebGL2())
return ErrorInvalidEnum("bindTexture: target TEXTURE_3D is only available in WebGL version 2.0 or newer");
currentTexPtr = &mBound3DTextures[mActiveTexture];
break;
default:
return ErrorInvalidEnumInfo("bindTexture: target", rawTarget);
}
const TexTarget texTarget(rawTarget);
MakeContextCurrent();
if (newTex && !newTex->BindTexture(texTarget))
return;
if (!newTex) {
gl->fBindTexture(texTarget.get(), 0);
}
*currentTexPtr = newTex;
}
void
WebGL2Context::BindSampler(GLuint unit, WebGLSampler* sampler)
{
if (IsContextLost())
return;
if (!ValidateObjectAllowDeletedOrNull("bindSampler", sampler))
return;
if (GLint(unit) >= mGLMaxTextureUnits)
return ErrorInvalidValue("bindSampler: unit must be < %d", mGLMaxTextureUnits);
if (sampler && sampler->IsDeleted())
return ErrorInvalidOperation("bindSampler: binding deleted sampler");
WebGLContextUnchecked::BindSampler(unit, sampler);
mBoundSamplers[unit] = sampler;
}
void
WebGL2Context::DeleteSampler(WebGLSampler* sampler)
{
if (IsContextLost())
return;
if (!ValidateObjectAllowDeletedOrNull("deleteSampler", sampler))
return;
if (!sampler || sampler->IsDeleted())
return;
for (int n = 0; n < mGLMaxTextureUnits; n++) {
if (mBoundSamplers[n] == sampler) {
mBoundSamplers[n] = nullptr;
}
}
sampler->RequestDelete();
}
void
WebGLContext::BindBufferRange(GLenum target, GLuint index, WebGLBuffer* buffer,
WebGLintptr offset, WebGLsizeiptr size)
{
if (IsContextLost())
return;
if (!ValidateObjectAllowDeletedOrNull("bindBufferRange", buffer))
return;
// silently ignore a deleted buffer
if (buffer && buffer->IsDeleted())
return;
// ValidateBufferTarget
switch (target) {
case LOCAL_GL_TRANSFORM_FEEDBACK_BUFFER:
if (index >= mGLMaxTransformFeedbackSeparateAttribs)
return ErrorInvalidValue("bindBufferRange: index should be less than "
"MAX_TRANSFORM_FEEDBACK_SEPARATE_ATTRIBS");
break;
case LOCAL_GL_UNIFORM_BUFFER:
if (index >= mGLMaxUniformBufferBindings)
return ErrorInvalidValue("bindBufferRange: index should be less than "
"MAX_UNIFORM_BUFFER_BINDINGS");
break;
default:
return ErrorInvalidEnumInfo("bindBufferRange: target", target);
}
if (!ValidateBufferForTarget(target, buffer, "bindBufferRange"))
return;
WebGLContextUnchecked::BindBufferRange(target, index, buffer, offset, size);
UpdateBoundBufferIndexed(target, index, buffer);
}
void
WebGLContext::BindBuffer(GLenum target, WebGLBuffer* buffer)
{
if (IsContextLost())
return;
if (!ValidateObjectAllowDeletedOrNull("bindBuffer", buffer))
return;
// silently ignore a deleted buffer
if (buffer && buffer->IsDeleted())
return;
if (!ValidateBufferTarget(target, "bindBuffer"))
return;
if (!ValidateBufferForTarget(target, buffer, "bindBuffer"))
return;
WebGLContextUnchecked::BindBuffer(target, buffer);
UpdateBoundBuffer(target, buffer);
}
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::DeleteBuffer(WebGLBuffer* buffer)
{
if (IsContextLost())
return;
if (!ValidateObjectAllowDeletedOrNull("deleteBuffer", buffer))
return;
if (!buffer || buffer->IsDeleted())
return;
// TODO: Extract this into a helper function?
if (mBoundArrayBuffer == buffer) {
WebGLContextUnchecked::BindBuffer(LOCAL_GL_ARRAY_BUFFER, nullptr);
mBoundArrayBuffer = nullptr;
}
if (mBoundVertexArray->mElementArrayBuffer == buffer) {
WebGLContextUnchecked::BindBuffer(LOCAL_GL_ELEMENT_ARRAY_BUFFER, nullptr);
mBoundVertexArray->mElementArrayBuffer = nullptr;
}
// WebGL binding points
if (IsWebGL2()) {
if (mBoundCopyReadBuffer == buffer)
mBoundCopyReadBuffer = nullptr;
if (mBoundCopyWriteBuffer == buffer)
mBoundCopyWriteBuffer = nullptr;
if (mBoundPixelPackBuffer == buffer)
mBoundPixelPackBuffer = nullptr;
if (mBoundPixelUnpackBuffer == buffer)
mBoundPixelUnpackBuffer = nullptr;
if (mBoundTransformFeedbackBuffer == buffer)
mBoundTransformFeedbackBuffer = nullptr;
if (mBoundUniformBuffer == buffer)
mBoundUniformBuffer = nullptr;
const size_t xfBufferCount = mBoundTransformFeedbackBuffers.Length();
for (size_t n = 0; n < xfBufferCount; n++) {
if (mBoundTransformFeedbackBuffers[n] == buffer) {
mBoundTransformFeedbackBuffers[n] = nullptr;
}
}
const size_t uniformBufferCount = mBoundUniformBuffers.Length();
for (size_t n = 0; n < uniformBufferCount; n++) {
if (mBoundUniformBuffers[n] == buffer) {
mBoundUniformBuffers[n] = nullptr;
}
}
}
for (int32_t i = 0; i < mGLMaxVertexAttribs; i++) {
if (mBoundVertexArray->HasAttrib(i) &&
mBoundVertexArray->mAttribs[i].buf == buffer)
{
mBoundVertexArray->mAttribs[i].buf = nullptr;
}
}
buffer->RequestDelete();
}