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opengl/gltexture: remove all the static things

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The static fbo is removed, and the rest is moved to OpenGlContext
This commit is contained in:
Xaver Hugl 2024-02-27 20:08:59 +01:00
parent feeacf37db
commit 1b4a9abbe3
5 changed files with 82 additions and 103 deletions
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103
src/opengl/gltexture.cpp
View file

@ -25,18 +25,6 @@
namespace KWin
{
//****************************************
// GLTexture
//****************************************
bool GLTexturePrivate::s_supportsARGB32 = false;
bool GLTexturePrivate::s_supportsUnpack = false;
bool GLTexturePrivate::s_supportsTextureStorage = false;
bool GLTexturePrivate::s_supportsTextureSwizzle = false;
bool GLTexturePrivate::s_supportsTextureFormatRG = false;
bool GLTexturePrivate::s_supportsTexture16Bit = false;
uint GLTexturePrivate::s_fbo = 0;
// Table of GL formats/types associated with different values of QImage::Format.
// Zero values indicate a direct upload is not feasible.
//
@ -140,40 +128,6 @@ GLTexturePrivate::~GLTexturePrivate()
}
}
void GLTexturePrivate::initStatic()
{
if (!GLPlatform::instance()->isGLES()) {
s_supportsTextureStorage = hasGLVersion(4, 2) || hasGLExtension(QByteArrayLiteral("GL_ARB_texture_storage"));
s_supportsTextureSwizzle = hasGLVersion(3, 3) || hasGLExtension(QByteArrayLiteral("GL_ARB_texture_swizzle"));
// see https://www.opengl.org/registry/specs/ARB/texture_rg.txt
s_supportsTextureFormatRG = hasGLVersion(3, 0) || hasGLExtension(QByteArrayLiteral("GL_ARB_texture_rg"));
s_supportsTexture16Bit = true;
s_supportsARGB32 = true;
s_supportsUnpack = true;
} else {
s_supportsTextureStorage = hasGLVersion(3, 0) || hasGLExtension(QByteArrayLiteral("GL_EXT_texture_storage"));
s_supportsTextureSwizzle = hasGLVersion(3, 0);
// see https://www.khronos.org/registry/gles/extensions/EXT/EXT_texture_rg.txt
s_supportsTextureFormatRG = hasGLVersion(3, 0) || hasGLExtension(QByteArrayLiteral("GL_EXT_texture_rg"));
s_supportsTexture16Bit = hasGLExtension(QByteArrayLiteral("GL_EXT_texture_norm16"));
// QImage::Format_ARGB32_Premultiplied is a packed-pixel format, so it's only
// equivalent to GL_BGRA/GL_UNSIGNED_BYTE on little-endian systems.
s_supportsARGB32 = QSysInfo::ByteOrder == QSysInfo::LittleEndian && hasGLExtension(QByteArrayLiteral("GL_EXT_texture_format_BGRA8888"));
s_supportsUnpack = hasGLExtension(QByteArrayLiteral("GL_EXT_unpack_subimage"));
}
}
void GLTexturePrivate::cleanup()
{
s_supportsARGB32 = false;
if (s_fbo) {
glDeleteFramebuffers(1, &s_fbo);
s_fbo = 0;
}
}
bool GLTexture::isNull() const
{
return GL_NONE == d->m_texture;
@ -208,7 +162,7 @@ void GLTexture::update(const QImage &image, const QPoint &offset, const QRect &s
const QImage::Format index = image.format();
if (index < sizeof(formatTable) / sizeof(formatTable[0]) && formatTable[index].internalFormat
&& !(formatTable[index].type == GL_UNSIGNED_SHORT && !d->s_supportsTexture16Bit)) {
&& !(formatTable[index].type == GL_UNSIGNED_SHORT && !OpenGlContext::currentContext()->supports16BitTextures())) {
glFormat = formatTable[index].format;
type = formatTable[index].type;
uploadFormat = index;
@ -218,7 +172,7 @@ void GLTexture::update(const QImage &image, const QPoint &offset, const QRect &s
uploadFormat = QImage::Format_ARGB32_Premultiplied;
}
} else {
if (d->s_supportsARGB32) {
if (OpenGlContext::currentContext()->supportsARGB32Textures()) {
glFormat = GL_BGRA_EXT;
type = GL_UNSIGNED_BYTE;
uploadFormat = QImage::Format_ARGB32_Premultiplied;
@ -228,7 +182,7 @@ void GLTexture::update(const QImage &image, const QPoint &offset, const QRect &s
uploadFormat = QImage::Format_RGBA8888_Premultiplied;
}
}
bool useUnpack = d->s_supportsUnpack && image.format() == uploadFormat && !src.isNull();
bool useUnpack = OpenGlContext::currentContext()->supportsTextureUnpack() && image.format() == uploadFormat && !src.isNull();
QImage im;
if (useUnpack) {
@ -419,38 +373,11 @@ GLenum GLTexture::internalFormat() const
void GLTexture::clear()
{
Q_ASSERT(d->m_owning);
if (!GLTexturePrivate::s_fbo && GLPlatform::instance()->driver() != Driver_Catalyst) { // fail. -> bug #323065
glGenFramebuffers(1, &GLTexturePrivate::s_fbo);
}
if (GLTexturePrivate::s_fbo) {
// Clear the texture
GLuint previousFramebuffer = 0;
glGetIntegerv(GL_DRAW_FRAMEBUFFER_BINDING, reinterpret_cast<GLint *>(&previousFramebuffer));
if (GLTexturePrivate::s_fbo != previousFramebuffer) {
glBindFramebuffer(GL_FRAMEBUFFER, GLTexturePrivate::s_fbo);
}
glClearColor(0, 0, 0, 0);
glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, d->m_texture, 0);
glClear(GL_COLOR_BUFFER_BIT);
if (GLTexturePrivate::s_fbo != previousFramebuffer) {
glBindFramebuffer(GL_FRAMEBUFFER, previousFramebuffer);
}
} else {
if (const int size = width() * height()) {
std::vector<uint32_t> buffer(size, 0);
bind();
if (!GLPlatform::instance()->isGLES()) {
glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, width(), height(),
GL_BGRA, GL_UNSIGNED_INT_8_8_8_8_REV, buffer.data());
} else {
const GLenum format = d->s_supportsARGB32 ? GL_BGRA_EXT : GL_RGBA;
glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, width(), height(),
format, GL_UNSIGNED_BYTE, buffer.data());
}
unbind();
}
}
GLFramebuffer fbo(this);
GLFramebuffer::pushFramebuffer(&fbo);
glClearColor(0, 0, 0, 0);
glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, d->m_texture, 0);
glClear(GL_COLOR_BUFFER_BIT);
}
bool GLTexture::isDirty() const
@ -551,12 +478,12 @@ QMatrix4x4 GLTexture::matrix(TextureCoordinateType type) const
bool GLTexture::supportsSwizzle()
{
return GLTexturePrivate::s_supportsTextureSwizzle;
return OpenGlContext::currentContext()->supportsTextureSwizzle();
}
bool GLTexture::supportsFormatRG()
{
return GLTexturePrivate::s_supportsTextureFormatRG;
return OpenGlContext::currentContext()->supportsRGTextures();
}
QImage GLTexture::toImage()
@ -601,7 +528,7 @@ std::unique_ptr<GLTexture> GLTexture::allocate(GLenum internalFormat, const QSiz
glBindTexture(GL_TEXTURE_2D, texture);
if (!GLPlatform::instance()->isGLES()) {
if (GLTexturePrivate::s_supportsTextureStorage) {
if (OpenGlContext::currentContext()->supportsTextureStorage()) {
glTexStorage2D(GL_TEXTURE_2D, levels, internalFormat, size.width(), size.height());
} else {
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAX_LEVEL, levels - 1);
@ -612,7 +539,7 @@ std::unique_ptr<GLTexture> GLTexture::allocate(GLenum internalFormat, const QSiz
// The format parameter in glTexSubImage() must match the internal format
// of the texture, so it's important that we allocate the texture with
// the format that will be used in update() and clear().
const GLenum format = GLTexturePrivate::s_supportsARGB32 ? GL_BGRA_EXT : GL_RGBA;
const GLenum format = OpenGlContext::currentContext()->supportsARGB32Textures() ? GL_BGRA_EXT : GL_RGBA;
glTexImage2D(GL_TEXTURE_2D, 0, format, size.width(), size.height(), 0,
format, GL_UNSIGNED_BYTE, nullptr);
@ -645,7 +572,7 @@ std::unique_ptr<GLTexture> GLTexture::upload(const QImage &image)
const QImage::Format index = image.format();
if (index < sizeof(formatTable) / sizeof(formatTable[0]) && formatTable[index].internalFormat
&& !(formatTable[index].type == GL_UNSIGNED_SHORT && !GLTexturePrivate::s_supportsTexture16Bit)) {
&& !(formatTable[index].type == GL_UNSIGNED_SHORT && !OpenGlContext::currentContext()->supports16BitTextures())) {
internalFormat = formatTable[index].internalFormat;
format = formatTable[index].format;
type = formatTable[index].type;
@ -657,7 +584,7 @@ std::unique_ptr<GLTexture> GLTexture::upload(const QImage &image)
type = GL_UNSIGNED_INT_8_8_8_8_REV;
}
if (GLTexturePrivate::s_supportsTextureStorage) {
if (OpenGlContext::currentContext()->supportsARGB32Textures()) {
glTexStorage2D(GL_TEXTURE_2D, 1, internalFormat, im.width(), im.height());
glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, im.width(), im.height(),
format, type, im.constBits());
@ -669,7 +596,7 @@ std::unique_ptr<GLTexture> GLTexture::upload(const QImage &image)
} else {
internalFormat = GL_RGBA8;
if (GLTexturePrivate::s_supportsARGB32) {
if (OpenGlContext::currentContext()->supportsARGB32Textures()) {
const QImage im = image.convertToFormat(QImage::Format_ARGB32_Premultiplied);
glTexImage2D(GL_TEXTURE_2D, 0, GL_BGRA_EXT, im.width(), im.height(),
0, GL_BGRA_EXT, GL_UNSIGNED_BYTE, im.constBits());

13
src/opengl/gltexture_p.h
View file

@ -56,19 +56,6 @@ public:
QRectF m_cachedSource;
OutputTransform m_cachedContentTransform;
static void initStatic();
static bool s_supportsARGB32;
static bool s_supportsUnpack;
static bool s_supportsTextureStorage;
static bool s_supportsTextureSwizzle;
static bool s_supportsTextureFormatRG;
static bool s_supportsTexture16Bit;
static GLuint s_fbo;
private:
friend void KWin::cleanupGL();
static void cleanup();
Q_DISABLE_COPY(GLTexturePrivate)
};

2
src/opengl/glutils.cpp
View file

@ -114,14 +114,12 @@ void initGL(const std::function<resolveFuncPtr(const char *)> &resolveFunction)
initDebugOutput();
GLTexturePrivate::initStatic();
GLFramebuffer::initStatic();
GLVertexBuffer::initStatic();
}
void cleanupGL()
{
GLTexturePrivate::cleanup();
GLFramebuffer::cleanup();
GLVertexBuffer::cleanup();
GLPlatform::cleanup();

54
src/opengl/openglcontext.cpp
View file

@ -37,6 +37,24 @@ static QSet<QByteArray> getExtensions(OpenGlContext *context)
return ret;
}
static bool checkTextureSwizzleSupport(OpenGlContext *context)
{
if (context->isOpenglES()) {
return context->hasVersion(Version(3, 0));
} else {
return context->hasVersion(Version(3, 3)) || context->hasOpenglExtension(QByteArrayLiteral("GL_ARB_texture_swizzle"));
}
}
static bool checkTextureStorageSupport(OpenGlContext *context)
{
if (context->isOpenglES()) {
return context->hasVersion(Version(3, 0)) || context->hasOpenglExtension(QByteArrayLiteral("GL_EXT_texture_storage"));
} else {
return context->hasVersion(Version(4, 2)) || context->hasOpenglExtension(QByteArrayLiteral("GL_ARB_texture_storage"));
}
}
OpenGlContext::OpenGlContext()
: m_versionString((const char *)glGetString(GL_VERSION))
, m_version(Version::parseString(m_versionString))
@ -45,6 +63,12 @@ OpenGlContext::OpenGlContext()
, m_isOpenglES(m_versionString.startsWith("OpenGL ES"))
, m_extensions(getExtensions(this))
, m_supportsTimerQueries(checkTimerQuerySupport())
, m_supportsTextureStorage(checkTextureStorageSupport(this))
, m_supportsTextureSwizzle(checkTextureSwizzleSupport(this))
, m_supportsARGB32Textures(!m_isOpenglES || hasOpenglExtension(QByteArrayLiteral("GL_EXT_texture_format_BGRA8888")))
, m_supportsTextureUnpack(!m_isOpenglES || hasOpenglExtension(QByteArrayLiteral("GL_EXT_unpack_subimage")))
, m_supportsRGTextures(hasVersion(Version(3, 0)) || hasOpenglExtension(QByteArrayLiteral("GL_ARB_texture_rg")) || hasOpenglExtension(QByteArrayLiteral("GL_EXT_texture_rg")))
, m_supports16BitTextures(!m_isOpenglES || hasOpenglExtension(QByteArrayLiteral("GL_EXT_texture_norm16")))
{
}
@ -109,6 +133,36 @@ bool OpenGlContext::supportsTimerQueries() const
return m_supportsTimerQueries;
}
bool OpenGlContext::supportsTextureStorage() const
{
return m_supportsTextureStorage;
}
bool OpenGlContext::supportsTextureSwizzle() const
{
return m_supportsTextureSwizzle;
}
bool OpenGlContext::supportsARGB32Textures() const
{
return m_supportsARGB32Textures;
}
bool OpenGlContext::supportsTextureUnpack() const
{
return m_supportsTextureUnpack;
}
bool OpenGlContext::supportsRGTextures() const
{
return m_supportsRGTextures;
}
bool OpenGlContext::supports16BitTextures() const
{
return m_supports16BitTextures;
}
ShaderManager *OpenGlContext::shaderManager() const
{
return m_shaderManager;

13
src/opengl/openglcontext.h
View file

@ -20,6 +20,7 @@ namespace KWin
{
class ShaderManager;
class GLFramebuffer;
class KWIN_EXPORT OpenGlContext
{
@ -37,6 +38,12 @@ public:
bool hasOpenglExtension(QByteArrayView name) const;
bool isSoftwareRenderer() const;
bool supportsTimerQueries() const;
bool supportsTextureSwizzle() const;
bool supportsTextureStorage() const;
bool supportsARGB32Textures() const;
bool supportsTextureUnpack() const;
bool supportsRGTextures() const;
bool supports16BitTextures() const;
ShaderManager *shaderManager() const;
/**
@ -59,6 +66,12 @@ protected:
const bool m_isOpenglES;
const QSet<QByteArray> m_extensions;
const bool m_supportsTimerQueries;
const bool m_supportsTextureStorage;
const bool m_supportsTextureSwizzle;
const bool m_supportsARGB32Textures;
const bool m_supportsTextureUnpack;
const bool m_supportsRGTextures;
const bool m_supports16BitTextures;
ShaderManager *m_shaderManager = nullptr;
};