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Use raw OpenGL textures rather than QOpenGLTexture, since that we're having

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issues with constants in that class.
This commit is contained in:
Andrzej Kapolka 2014-07-31 11:55:52 -07:00
parent 90ce73823a
commit a0886d4301
2 changed files with 44 additions and 50 deletions
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79
interface/src/MetavoxelSystem.cpp
View file

@ -29,7 +29,6 @@ REGISTER_META_OBJECT(DefaultMetavoxelRendererImplementation)
REGISTER_META_OBJECT(SphereRenderer)
REGISTER_META_OBJECT(StaticModelRenderer)
static int texturePointerMetaTypeId = qRegisterMetaType<TexturePointer>();
static int bufferPointVectorMetaTypeId = qRegisterMetaType<BufferPointVector>();
void MetavoxelSystem::init() {
@ -113,9 +112,9 @@ void MetavoxelSystem::render() {
guideToAugmented(renderVisitor);
}
void MetavoxelSystem::deleteTextures(const TexturePointer& height, const TexturePointer& color) {
delete height;
delete color;
void MetavoxelSystem::deleteTextures(int heightID, int colorID) {
glDeleteTextures(1, (GLuint*)&heightID);
glDeleteTextures(1, (GLuint*)&colorID);
}
MetavoxelClient* MetavoxelSystem::createClient(const SharedNodePointer& node) {
@ -267,18 +266,19 @@ HeightfieldBuffer::HeightfieldBuffer(const glm::vec3& translation, float scale,
_height(height),
_color(color),
_clearAfterLoading(clearAfterLoading),
_heightTexture(new QOpenGLTexture(QOpenGLTexture::Target2D)),
_colorTexture(new QOpenGLTexture(QOpenGLTexture::Target2D)) {
_heightTextureID(0),
_colorTextureID(0),
_heightSize(glm::sqrt(height.size())) {
}
HeightfieldBuffer::~HeightfieldBuffer() {
// the textures have to be deleted on the main thread (for its opengl context)
if (QThread::currentThread() != Application::getInstance()->thread()) {
QMetaObject::invokeMethod(Application::getInstance()->getMetavoxels(), "deleteTextures",
Q_ARG(const TexturePointer&, _heightTexture), Q_ARG(const TexturePointer&, _colorTexture));
Q_ARG(int, _heightTextureID), Q_ARG(int, _colorTextureID));
} else {
delete _heightTexture;
delete _colorTexture;
glDeleteTextures(1, &_heightTextureID);
glDeleteTextures(1, &_colorTextureID);
}
}
@ -290,49 +290,46 @@ public:
void HeightfieldBuffer::render() {
// initialize textures, etc. on first render
if (!_heightTexture->isCreated()) {
int heightSize = glm::sqrt(_height.size());
_heightTexture->setSize(heightSize, heightSize);
_heightTexture->setAutoMipMapGenerationEnabled(false);
_heightTexture->setMinificationFilter(QOpenGLTexture::Linear);
_heightTexture->setWrapMode(QOpenGLTexture::ClampToEdge);
_heightTexture->setFormat(QOpenGLTexture::LuminanceFormat);
_heightTexture->allocateStorage();
_heightTexture->setData(QOpenGLTexture::Luminance, QOpenGLTexture::UInt8, _height.data());
if (_heightTextureID == 0) {
glGenTextures(1, &_heightTextureID);
glBindTexture(GL_TEXTURE_2D, _heightTextureID);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
glTexImage2D(GL_TEXTURE_2D, 0, GL_LUMINANCE, _heightSize, _heightSize, 0,
GL_LUMINANCE, GL_UNSIGNED_BYTE, _height.constData());
if (_clearAfterLoading) {
_height.clear();
}
if (!_color.isEmpty()) {
glGenTextures(1, &_colorTextureID);
glBindTexture(GL_TEXTURE_2D, _colorTextureID);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
if (_color.isEmpty()) {
const quint8 WHITE_COLOR[] = { 255, 255, 255 };
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, 1, 1, 0, GL_RGB, GL_UNSIGNED_BYTE, WHITE_COLOR);
} else {
int colorSize = glm::sqrt(_color.size() / 3);
_colorTexture->setSize(colorSize, colorSize);
}
_colorTexture->setAutoMipMapGenerationEnabled(false);
_colorTexture->setMinificationFilter(QOpenGLTexture::Linear);
_colorTexture->setWrapMode(QOpenGLTexture::ClampToEdge);
_colorTexture->setFormat(QOpenGLTexture::RGBFormat);
_colorTexture->allocateStorage();
if (!_color.isEmpty()) {
_colorTexture->setData(QOpenGLTexture::RGB, QOpenGLTexture::UInt8, _color.data());
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, colorSize, colorSize, 0, GL_RGB, GL_UNSIGNED_BYTE, _color.constData());
if (_clearAfterLoading) {
_color.clear();
}
} else {
const quint8 WHITE_COLOR[] = { 255, 255, 255 };
_colorTexture->setData(QOpenGLTexture::RGB, QOpenGLTexture::UInt8, const_cast<quint8*>(WHITE_COLOR));
}
}
// create the buffer objects lazily
int size = _heightTexture->width();
int sizeWithSkirt = size + 2;
int sizeWithSkirt = _heightSize + 2;
int vertexCount = sizeWithSkirt * sizeWithSkirt;
int rows = sizeWithSkirt - 1;
int indexCount = rows * rows * 4;
BufferPair& bufferPair = _bufferPairs[size];
BufferPair& bufferPair = _bufferPairs[_heightSize];
if (!bufferPair.first.isCreated()) {
QVector<HeightfieldPoint> vertices(vertexCount);
HeightfieldPoint* point = vertices.data();
float step = 1.0f / (size - 1);
float step = 1.0f / (_heightSize - 1);
float z = -step;
for (int i = 0; i < sizeWithSkirt; i++, z += step) {
float x = -step;
@ -380,13 +377,17 @@ void HeightfieldBuffer::render() {
glTranslatef(_translation.x, _translation.y, _translation.z);
glScalef(_scale, _scale, _scale);
_heightTexture->bind(0);
_colorTexture->bind(1);
glBindTexture(GL_TEXTURE_2D, _heightTextureID);
glActiveTexture(GL_TEXTURE1);
glBindTexture(GL_TEXTURE_2D, _colorTextureID);
glDrawRangeElements(GL_QUADS, 0, vertexCount - 1, indexCount, GL_UNSIGNED_INT, 0);
_colorTexture->release(1);
_heightTexture->release(0);
glBindTexture(GL_TEXTURE_2D, 0);
glActiveTexture(GL_TEXTURE0);
glBindTexture(GL_TEXTURE_2D, 0);
glPopMatrix();

15
interface/src/MetavoxelSystem.h
View file

@ -12,12 +12,8 @@
#ifndef hifi_MetavoxelSystem_h
#define hifi_MetavoxelSystem_h
// include this before QOpenGLTexture, which includes an earlier version of OpenGL
#include "InterfaceConfig.h"
#include <QList>
#include <QOpenGLBuffer>
#include <QOpenGLTexture>
#include <QReadWriteLock>
#include <QVector>
@ -29,8 +25,6 @@
class Model;
typedef QOpenGLTexture* TexturePointer;
/// Renders a metavoxel tree.
class MetavoxelSystem : public MetavoxelClientManager {
Q_OBJECT
@ -47,7 +41,7 @@ public:
void simulate(float deltaTime);
void render();
Q_INVOKABLE void deleteTextures(const TexturePointer& height, const TexturePointer& color);
Q_INVOKABLE void deleteTextures(int heightID, int colorID);
protected:
@ -64,8 +58,6 @@ private:
QReadWriteLock _lodLock;
};
Q_DECLARE_METATYPE(TexturePointer)
/// Describes contents of a point in a point buffer.
class BufferPoint {
public:
@ -154,8 +146,9 @@ private:
QByteArray _height;
QByteArray _color;
bool _clearAfterLoading;
TexturePointer _heightTexture;
TexturePointer _colorTexture;
GLuint _heightTextureID;
GLuint _colorTextureID;
int _heightSize;
typedef QPair<QOpenGLBuffer, QOpenGLBuffer> BufferPair;
static QHash<int, BufferPair> _bufferPairs;