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Abandon seperate vertex formats for now

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This commit is contained in:
Brad Davis 2016-06-28 19:18:16 -07:00
parent 542601fd9d
commit f93a91a97f
4 changed files with 176 additions and 234 deletions
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2
libraries/gpu-gl/src/gpu/gl/GLBackend.h
View file

@ -186,7 +186,7 @@ protected:
virtual void killInput() final;
virtual void syncInputStateCache() final;
virtual void resetInputStage() final;
virtual void updateInput() = 0;
virtual void updateInput();
struct InputStageState {
bool _invalidFormat { true };

173
libraries/gpu-gl/src/gpu/gl/GLBackendInput.cpp
View file

@ -150,3 +150,176 @@ void GLBackend::do_setIndirectBuffer(Batch& batch, size_t paramOffset) {
(void)CHECK_GL_ERROR();
}
// Core 41 doesn't expose the features to really separate the vertex format from the vertex buffers binding
// Core 43 does :)
// FIXME crashing problem with glVertexBindingDivisor / glVertexAttribFormat
// Once resolved, break this up into the GL 4.1 and 4.5 backends
#if 1 || (GPU_INPUT_PROFILE == GPU_CORE_41)
#define NO_SUPPORT_VERTEX_ATTRIB_FORMAT
#else
#define SUPPORT_VERTEX_ATTRIB_FORMAT
#endif
void GLBackend::updateInput() {
#if defined(SUPPORT_VERTEX_ATTRIB_FORMAT)
if (_input._invalidFormat) {
InputStageState::ActivationCache newActivation;
// Assign the vertex format required
if (_input._format) {
for (auto& it : _input._format->getAttributes()) {
const Stream::Attribute& attrib = (it).second;
GLuint slot = attrib._slot;
GLuint count = attrib._element.getLocationScalarCount();
uint8_t locationCount = attrib._element.getLocationCount();
GLenum type = _elementTypeToGL41Type[attrib._element.getType()];
GLuint offset = attrib._offset;;
GLboolean isNormalized = attrib._element.isNormalized();
GLenum perLocationSize = attrib._element.getLocationSize();
for (size_t locNum = 0; locNum < locationCount; ++locNum) {
newActivation.set(slot + locNum);
glVertexAttribFormat(slot + locNum, count, type, isNormalized, offset + locNum * perLocationSize);
glVertexAttribBinding(slot + locNum, attrib._channel);
}
glVertexBindingDivisor(attrib._channel, attrib._frequency);
}
(void)CHECK_GL_ERROR();
}
// Manage Activation what was and what is expected now
for (size_t i = 0; i < newActivation.size(); i++) {
bool newState = newActivation[i];
if (newState != _input._attributeActivation[i]) {
if (newState) {
glEnableVertexAttribArray(i);
} else {
glDisableVertexAttribArray(i);
}
_input._attributeActivation.flip(i);
}
}
(void)CHECK_GL_ERROR();
_input._invalidFormat = false;
_stats._ISNumFormatChanges++;
}
if (_input._invalidBuffers.any()) {
int numBuffers = _input._buffers.size();
auto buffer = _input._buffers.data();
auto vbo = _input._bufferVBOs.data();
auto offset = _input._bufferOffsets.data();
auto stride = _input._bufferStrides.data();
for (int bufferNum = 0; bufferNum < numBuffers; bufferNum++) {
if (_input._invalidBuffers.test(bufferNum)) {
glBindVertexBuffer(bufferNum, (*vbo), (*offset), (*stride));
}
buffer++;
vbo++;
offset++;
stride++;
}
_input._invalidBuffers.reset();
(void)CHECK_GL_ERROR();
}
#else
if (_input._invalidFormat || _input._invalidBuffers.any()) {
if (_input._invalidFormat) {
InputStageState::ActivationCache newActivation;
_stats._ISNumFormatChanges++;
// Check expected activation
if (_input._format) {
for (auto& it : _input._format->getAttributes()) {
const Stream::Attribute& attrib = (it).second;
uint8_t locationCount = attrib._element.getLocationCount();
for (int i = 0; i < locationCount; ++i) {
newActivation.set(attrib._slot + i);
}
}
}
// Manage Activation what was and what is expected now
for (unsigned int i = 0; i < newActivation.size(); i++) {
bool newState = newActivation[i];
if (newState != _input._attributeActivation[i]) {
if (newState) {
glEnableVertexAttribArray(i);
} else {
glDisableVertexAttribArray(i);
}
(void)CHECK_GL_ERROR();
_input._attributeActivation.flip(i);
}
}
}
// now we need to bind the buffers and assign the attrib pointers
if (_input._format) {
const Buffers& buffers = _input._buffers;
const Offsets& offsets = _input._bufferOffsets;
const Offsets& strides = _input._bufferStrides;
const Stream::Format::AttributeMap& attributes = _input._format->getAttributes();
auto& inputChannels = _input._format->getChannels();
_stats._ISNumInputBufferChanges++;
GLuint boundVBO = 0;
for (auto& channelIt : inputChannels) {
const Stream::Format::ChannelMap::value_type::second_type& channel = (channelIt).second;
if ((channelIt).first < buffers.size()) {
int bufferNum = (channelIt).first;
if (_input._invalidBuffers.test(bufferNum) || _input._invalidFormat) {
// GLuint vbo = gpu::GL41Backend::getBufferID((*buffers[bufferNum]));
GLuint vbo = _input._bufferVBOs[bufferNum];
if (boundVBO != vbo) {
glBindBuffer(GL_ARRAY_BUFFER, vbo);
(void)CHECK_GL_ERROR();
boundVBO = vbo;
}
_input._invalidBuffers[bufferNum] = false;
for (unsigned int i = 0; i < channel._slots.size(); i++) {
const Stream::Attribute& attrib = attributes.at(channel._slots[i]);
GLuint slot = attrib._slot;
GLuint count = attrib._element.getLocationScalarCount();
uint8_t locationCount = attrib._element.getLocationCount();
GLenum type = gl::ELEMENT_TYPE_TO_GL[attrib._element.getType()];
// GLenum perLocationStride = strides[bufferNum];
GLenum perLocationStride = attrib._element.getLocationSize();
GLuint stride = (GLuint)strides[bufferNum];
GLuint pointer = (GLuint)(attrib._offset + offsets[bufferNum]);
GLboolean isNormalized = attrib._element.isNormalized();
for (size_t locNum = 0; locNum < locationCount; ++locNum) {
glVertexAttribPointer(slot + (GLuint)locNum, count, type, isNormalized, stride,
reinterpret_cast<GLvoid*>(pointer + perLocationStride * (GLuint)locNum));
glVertexAttribDivisor(slot + (GLuint)locNum, attrib._frequency);
}
// TODO: Support properly the IAttrib version
(void)CHECK_GL_ERROR();
}
}
}
}
}
// everything format related should be in sync now
_input._invalidFormat = false;
}
#endif
}

168
libraries/gpu-gl/src/gpu/gl41/GL41BackendInput.cpp
View file

@ -13,173 +13,7 @@
using namespace gpu;
using namespace gpu::gl41;
// Core 41 doesn't expose the features to really separate the vertex format from the vertex buffers binding
// Core 43 does :)
// FIXME crashing problem with glVertexBindingDivisor / glVertexAttribFormat
#if 1 || (GPU_INPUT_PROFILE == GPU_CORE_41)
#define NO_SUPPORT_VERTEX_ATTRIB_FORMAT
#else
#define SUPPORT_VERTEX_ATTRIB_FORMAT
#endif
void GL41Backend::updateInput() {
#if defined(SUPPORT_VERTEX_ATTRIB_FORMAT)
if (_input._invalidFormat) {
InputStageState::ActivationCache newActivation;
// Assign the vertex format required
if (_input._format) {
for (auto& it : _input._format->getAttributes()) {
const Stream::Attribute& attrib = (it).second;
GLuint slot = attrib._slot;
GLuint count = attrib._element.getLocationScalarCount();
uint8_t locationCount = attrib._element.getLocationCount();
GLenum type = _elementTypeToGL41Type[attrib._element.getType()];
GLuint offset = attrib._offset;;
GLboolean isNormalized = attrib._element.isNormalized();
GLenum perLocationSize = attrib._element.getLocationSize();
for (size_t locNum = 0; locNum < locationCount; ++locNum) {
newActivation.set(slot + locNum);
glVertexAttribFormat(slot + locNum, count, type, isNormalized, offset + locNum * perLocationSize);
glVertexAttribBinding(slot + locNum, attrib._channel);
}
glVertexBindingDivisor(attrib._channel, attrib._frequency);
}
(void) CHECK_GL_ERROR();
}
// Manage Activation what was and what is expected now
for (size_t i = 0; i < newActivation.size(); i++) {
bool newState = newActivation[i];
if (newState != _input._attributeActivation[i]) {
if (newState) {
glEnableVertexAttribArray(i);
} else {
glDisableVertexAttribArray(i);
}
_input._attributeActivation.flip(i);
}
}
(void) CHECK_GL_ERROR();
_input._invalidFormat = false;
_stats._ISNumFormatChanges++;
}
if (_input._invalidBuffers.any()) {
int numBuffers = _input._buffers.size();
auto buffer = _input._buffers.data();
auto vbo = _input._bufferVBOs.data();
auto offset = _input._bufferOffsets.data();
auto stride = _input._bufferStrides.data();
for (int bufferNum = 0; bufferNum < numBuffers; bufferNum++) {
if (_input._invalidBuffers.test(bufferNum)) {
glBindVertexBuffer(bufferNum, (*vbo), (*offset), (*stride));
}
buffer++;
vbo++;
offset++;
stride++;
}
_input._invalidBuffers.reset();
(void) CHECK_GL_ERROR();
}
#else
if (_input._invalidFormat || _input._invalidBuffers.any()) {
if (_input._invalidFormat) {
InputStageState::ActivationCache newActivation;
_stats._ISNumFormatChanges++;
// Check expected activation
if (_input._format) {
for (auto& it : _input._format->getAttributes()) {
const Stream::Attribute& attrib = (it).second;
uint8_t locationCount = attrib._element.getLocationCount();
for (int i = 0; i < locationCount; ++i) {
newActivation.set(attrib._slot + i);
}
}
}
// Manage Activation what was and what is expected now
for (unsigned int i = 0; i < newActivation.size(); i++) {
bool newState = newActivation[i];
if (newState != _input._attributeActivation[i]) {
if (newState) {
glEnableVertexAttribArray(i);
} else {
glDisableVertexAttribArray(i);
}
(void) CHECK_GL_ERROR();
_input._attributeActivation.flip(i);
}
}
}
// now we need to bind the buffers and assign the attrib pointers
if (_input._format) {
const Buffers& buffers = _input._buffers;
const Offsets& offsets = _input._bufferOffsets;
const Offsets& strides = _input._bufferStrides;
const Stream::Format::AttributeMap& attributes = _input._format->getAttributes();
auto& inputChannels = _input._format->getChannels();
_stats._ISNumInputBufferChanges++;
GLuint boundVBO = 0;
for (auto& channelIt : inputChannels) {
const Stream::Format::ChannelMap::value_type::second_type& channel = (channelIt).second;
if ((channelIt).first < buffers.size()) {
int bufferNum = (channelIt).first;
if (_input._invalidBuffers.test(bufferNum) || _input._invalidFormat) {
// GLuint vbo = gpu::GL41Backend::getBufferID((*buffers[bufferNum]));
GLuint vbo = _input._bufferVBOs[bufferNum];
if (boundVBO != vbo) {
glBindBuffer(GL_ARRAY_BUFFER, vbo);
(void) CHECK_GL_ERROR();
boundVBO = vbo;
}
_input._invalidBuffers[bufferNum] = false;
for (unsigned int i = 0; i < channel._slots.size(); i++) {
const Stream::Attribute& attrib = attributes.at(channel._slots[i]);
GLuint slot = attrib._slot;
GLuint count = attrib._element.getLocationScalarCount();
uint8_t locationCount = attrib._element.getLocationCount();
GLenum type = gl::ELEMENT_TYPE_TO_GL[attrib._element.getType()];
// GLenum perLocationStride = strides[bufferNum];
GLenum perLocationStride = attrib._element.getLocationSize();
GLuint stride = (GLuint)strides[bufferNum];
GLuint pointer = (GLuint)(attrib._offset + offsets[bufferNum]);
GLboolean isNormalized = attrib._element.isNormalized();
for (size_t locNum = 0; locNum < locationCount; ++locNum) {
glVertexAttribPointer(slot + (GLuint)locNum, count, type, isNormalized, stride,
reinterpret_cast<GLvoid*>(pointer + perLocationStride * (GLuint)locNum));
glVertexAttribDivisor(slot + (GLuint)locNum, attrib._frequency);
}
// TODO: Support properly the IAttrib version
(void) CHECK_GL_ERROR();
}
}
}
}
}
// everything format related should be in sync now
_input._invalidFormat = false;
}
#endif
Parent::updateInput();
}

67
libraries/gpu-gl/src/gpu/gl45/GL45BackendInput.cpp
View file

@ -14,70 +14,5 @@ using namespace gpu;
using namespace gpu::gl45;
void GL45Backend::updateInput() {
if (_input._invalidFormat) {
InputStageState::ActivationCache newActivation;
// Assign the vertex format required
if (_input._format) {
for (auto& it : _input._format->getAttributes()) {
const Stream::Attribute& attrib = (it).second;
GLuint slot = attrib._slot;
GLuint count = attrib._element.getLocationScalarCount();
uint8_t locationCount = attrib._element.getLocationCount();
GLenum type = gl::ELEMENT_TYPE_TO_GL[attrib._element.getType()];
GLuint offset = (GLuint)attrib._offset;;
GLboolean isNormalized = attrib._element.isNormalized();
GLenum perLocationSize = attrib._element.getLocationSize();
for (uint8_t locNum = 0; locNum < locationCount; ++locNum) {
newActivation.set(slot + locNum);
glVertexAttribFormat(slot + locNum, count, type, isNormalized, offset + locNum * perLocationSize);
glVertexAttribBinding(slot + locNum, attrib._channel);
}
glVertexBindingDivisor(attrib._channel, attrib._frequency);
}
(void) CHECK_GL_ERROR();
}
// Manage Activation what was and what is expected now
for (uint32_t i = 0; i < newActivation.size(); i++) {
bool newState = newActivation[i];
if (newState != _input._attributeActivation[i]) {
if (newState) {
glEnableVertexAttribArray(i);
} else {
glDisableVertexAttribArray(i);
}
_input._attributeActivation.flip(i);
}
}
(void) CHECK_GL_ERROR();
_input._invalidFormat = false;
_stats._ISNumFormatChanges++;
}
if (_input._invalidBuffers.any()) {
auto numBuffers = _input._buffers.size();
auto buffer = _input._buffers.data();
auto vbo = _input._bufferVBOs.data();
auto offset = _input._bufferOffsets.data();
auto stride = _input._bufferStrides.data();
for (uint32_t bufferNum = 0; bufferNum < numBuffers; bufferNum++) {
if (_input._invalidBuffers.test(bufferNum)) {
glBindVertexBuffer(bufferNum, (*vbo), (GLuint)(*offset), (GLuint)(*stride));
}
buffer++;
vbo++;
offset++;
stride++;
}
_input._invalidBuffers.reset();
(void) CHECK_GL_ERROR();
}
Parent::updateInput();
}