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-rw-r--r--src/gui/opengl/qopengltexture.cpp397
1 files changed, 387 insertions, 10 deletions
diff --git a/src/gui/opengl/qopengltexture.cpp b/src/gui/opengl/qopengltexture.cpp
index e0e1c72a6c..811505cecb 100644
--- a/src/gui/opengl/qopengltexture.cpp
+++ b/src/gui/opengl/qopengltexture.cpp
@@ -67,7 +67,7 @@ QOpenGLTexturePrivate::QOpenGLTexturePrivate(QOpenGLTexture::Target textureTarge
mipLevels(-1),
layers(1),
faces(1),
- samples(1),
+ samples(0),
fixedSamplePositions(true),
baseLevel(0),
maxLevel(1000),
@@ -200,7 +200,7 @@ void QOpenGLTexturePrivate::destroy()
mipLevels = -1;
layers = 1;
faces = 1;
- samples = 1;
+ samples = 0;
fixedSamplePositions = true,
baseLevel = 0;
maxLevel = 1000;
@@ -314,8 +314,239 @@ void QOpenGLTexturePrivate::allocateStorage()
allocateMutableStorage();
}
+static QOpenGLTexture::PixelFormat pixelFormatCompatibleWithInternalFormat(QOpenGLTexture::TextureFormat internalFormat)
+{
+ switch (internalFormat) {
+ case QOpenGLTexture::NoFormat:
+ return QOpenGLTexture::NoSourceFormat;
+
+ case QOpenGLTexture::R8_UNorm:
+ case QOpenGLTexture::RG8_UNorm:
+ case QOpenGLTexture::RGB8_UNorm:
+ case QOpenGLTexture::RGBA8_UNorm:
+ case QOpenGLTexture::R16_UNorm:
+ case QOpenGLTexture::RG16_UNorm:
+ case QOpenGLTexture::RGB16_UNorm:
+ case QOpenGLTexture::RGBA16_UNorm:
+ case QOpenGLTexture::R8_SNorm:
+ case QOpenGLTexture::RG8_SNorm:
+ case QOpenGLTexture::RGB8_SNorm:
+ case QOpenGLTexture::RGBA8_SNorm:
+ case QOpenGLTexture::R16_SNorm:
+ case QOpenGLTexture::RG16_SNorm:
+ case QOpenGLTexture::RGB16_SNorm:
+ case QOpenGLTexture::RGBA16_SNorm:
+ case QOpenGLTexture::R8U:
+ case QOpenGLTexture::RG8U:
+ case QOpenGLTexture::RGB8U:
+ case QOpenGLTexture::RGBA8U:
+ case QOpenGLTexture::R16U:
+ case QOpenGLTexture::RG16U:
+ case QOpenGLTexture::RGB16U:
+ case QOpenGLTexture::RGBA16U:
+ case QOpenGLTexture::R32U:
+ case QOpenGLTexture::RG32U:
+ case QOpenGLTexture::RGB32U:
+ case QOpenGLTexture::RGBA32U:
+ case QOpenGLTexture::R8I:
+ case QOpenGLTexture::RG8I:
+ case QOpenGLTexture::RGB8I:
+ case QOpenGLTexture::RGBA8I:
+ case QOpenGLTexture::R16I:
+ case QOpenGLTexture::RG16I:
+ case QOpenGLTexture::RGB16I:
+ case QOpenGLTexture::RGBA16I:
+ case QOpenGLTexture::R32I:
+ case QOpenGLTexture::RG32I:
+ case QOpenGLTexture::RGB32I:
+ case QOpenGLTexture::RGBA32I:
+ case QOpenGLTexture::R16F:
+ case QOpenGLTexture::RG16F:
+ case QOpenGLTexture::RGB16F:
+ case QOpenGLTexture::RGBA16F:
+ case QOpenGLTexture::R32F:
+ case QOpenGLTexture::RG32F:
+ case QOpenGLTexture::RGB32F:
+ case QOpenGLTexture::RGBA32F:
+ case QOpenGLTexture::RGB9E5:
+ case QOpenGLTexture::RG11B10F:
+ case QOpenGLTexture::RG3B2:
+ case QOpenGLTexture::R5G6B5:
+ case QOpenGLTexture::RGB5A1:
+ case QOpenGLTexture::RGBA4:
+ case QOpenGLTexture::RGB10A2:
+ return QOpenGLTexture::RGBA;
+
+ case QOpenGLTexture::D16:
+ case QOpenGLTexture::D24:
+ case QOpenGLTexture::D32:
+ case QOpenGLTexture::D32F:
+ return QOpenGLTexture::Depth;
+
+ case QOpenGLTexture::D24S8:
+ case QOpenGLTexture::D32FS8X24:
+ return QOpenGLTexture::DepthStencil;
+
+ case QOpenGLTexture::S8:
+ return QOpenGLTexture::Stencil;
+
+ case QOpenGLTexture::RGB_DXT1:
+ case QOpenGLTexture::RGBA_DXT1:
+ case QOpenGLTexture::RGBA_DXT3:
+ case QOpenGLTexture::RGBA_DXT5:
+ case QOpenGLTexture::R_ATI1N_UNorm:
+ case QOpenGLTexture::R_ATI1N_SNorm:
+ case QOpenGLTexture::RG_ATI2N_UNorm:
+ case QOpenGLTexture::RG_ATI2N_SNorm:
+ case QOpenGLTexture::RGB_BP_UNSIGNED_FLOAT:
+ case QOpenGLTexture::RGB_BP_SIGNED_FLOAT:
+ case QOpenGLTexture::RGB_BP_UNorm:
+ case QOpenGLTexture::SRGB8:
+ case QOpenGLTexture::SRGB8_Alpha8:
+ case QOpenGLTexture::SRGB_DXT1:
+ case QOpenGLTexture::SRGB_Alpha_DXT1:
+ case QOpenGLTexture::SRGB_Alpha_DXT3:
+ case QOpenGLTexture::SRGB_Alpha_DXT5:
+ case QOpenGLTexture::SRGB_BP_UNorm:
+ return QOpenGLTexture::RGBA;
+
+ case QOpenGLTexture::DepthFormat:
+ return QOpenGLTexture::Depth;
+
+ case QOpenGLTexture::AlphaFormat:
+ return QOpenGLTexture::Alpha;
+
+ case QOpenGLTexture::RGBFormat:
+ case QOpenGLTexture::RGBAFormat:
+ return QOpenGLTexture::RGBA;
+
+ case QOpenGLTexture::LuminanceFormat:
+ return QOpenGLTexture::Luminance;
+
+ case QOpenGLTexture::LuminanceAlphaFormat:
+ return QOpenGLTexture::LuminanceAlpha;
+ }
+
+ Q_UNREACHABLE();
+ return QOpenGLTexture::NoSourceFormat;
+}
+
+static QOpenGLTexture::PixelType pixelTypeCompatibleWithInternalFormat(QOpenGLTexture::TextureFormat internalFormat)
+{
+ switch (internalFormat) {
+ case QOpenGLTexture::NoFormat:
+ return QOpenGLTexture::NoPixelType;
+
+ case QOpenGLTexture::R8_UNorm:
+ case QOpenGLTexture::RG8_UNorm:
+ case QOpenGLTexture::RGB8_UNorm:
+ case QOpenGLTexture::RGBA8_UNorm:
+ case QOpenGLTexture::R16_UNorm:
+ case QOpenGLTexture::RG16_UNorm:
+ case QOpenGLTexture::RGB16_UNorm:
+ case QOpenGLTexture::RGBA16_UNorm:
+ case QOpenGLTexture::R8_SNorm:
+ case QOpenGLTexture::RG8_SNorm:
+ case QOpenGLTexture::RGB8_SNorm:
+ case QOpenGLTexture::RGBA8_SNorm:
+ case QOpenGLTexture::R16_SNorm:
+ case QOpenGLTexture::RG16_SNorm:
+ case QOpenGLTexture::RGB16_SNorm:
+ case QOpenGLTexture::RGBA16_SNorm:
+ case QOpenGLTexture::R8U:
+ case QOpenGLTexture::RG8U:
+ case QOpenGLTexture::RGB8U:
+ case QOpenGLTexture::RGBA8U:
+ case QOpenGLTexture::R16U:
+ case QOpenGLTexture::RG16U:
+ case QOpenGLTexture::RGB16U:
+ case QOpenGLTexture::RGBA16U:
+ case QOpenGLTexture::R32U:
+ case QOpenGLTexture::RG32U:
+ case QOpenGLTexture::RGB32U:
+ case QOpenGLTexture::RGBA32U:
+ case QOpenGLTexture::R8I:
+ case QOpenGLTexture::RG8I:
+ case QOpenGLTexture::RGB8I:
+ case QOpenGLTexture::RGBA8I:
+ case QOpenGLTexture::R16I:
+ case QOpenGLTexture::RG16I:
+ case QOpenGLTexture::RGB16I:
+ case QOpenGLTexture::RGBA16I:
+ case QOpenGLTexture::R32I:
+ case QOpenGLTexture::RG32I:
+ case QOpenGLTexture::RGB32I:
+ case QOpenGLTexture::RGBA32I:
+ case QOpenGLTexture::R16F:
+ case QOpenGLTexture::RG16F:
+ case QOpenGLTexture::RGB16F:
+ case QOpenGLTexture::RGBA16F:
+ case QOpenGLTexture::R32F:
+ case QOpenGLTexture::RG32F:
+ case QOpenGLTexture::RGB32F:
+ case QOpenGLTexture::RGBA32F:
+ case QOpenGLTexture::RGB9E5:
+ case QOpenGLTexture::RG11B10F:
+ case QOpenGLTexture::RG3B2:
+ case QOpenGLTexture::R5G6B5:
+ case QOpenGLTexture::RGB5A1:
+ case QOpenGLTexture::RGBA4:
+ case QOpenGLTexture::RGB10A2:
+ return QOpenGLTexture::UInt8;
+
+ case QOpenGLTexture::D16:
+ case QOpenGLTexture::D24:
+ case QOpenGLTexture::D32:
+ case QOpenGLTexture::D32F:
+ return QOpenGLTexture::UInt8;
+
+ case QOpenGLTexture::D24S8:
+ return QOpenGLTexture::UInt32_D24S8;
+
+ case QOpenGLTexture::D32FS8X24:
+ return QOpenGLTexture::Float32_D32_UInt32_S8_X24;
+
+ case QOpenGLTexture::S8:
+ return QOpenGLTexture::UInt8;
+
+ case QOpenGLTexture::RGB_DXT1:
+ case QOpenGLTexture::RGBA_DXT1:
+ case QOpenGLTexture::RGBA_DXT3:
+ case QOpenGLTexture::RGBA_DXT5:
+ case QOpenGLTexture::R_ATI1N_UNorm:
+ case QOpenGLTexture::R_ATI1N_SNorm:
+ case QOpenGLTexture::RG_ATI2N_UNorm:
+ case QOpenGLTexture::RG_ATI2N_SNorm:
+ case QOpenGLTexture::RGB_BP_UNSIGNED_FLOAT:
+ case QOpenGLTexture::RGB_BP_SIGNED_FLOAT:
+ case QOpenGLTexture::RGB_BP_UNorm:
+ case QOpenGLTexture::SRGB8:
+ case QOpenGLTexture::SRGB8_Alpha8:
+ case QOpenGLTexture::SRGB_DXT1:
+ case QOpenGLTexture::SRGB_Alpha_DXT1:
+ case QOpenGLTexture::SRGB_Alpha_DXT3:
+ case QOpenGLTexture::SRGB_Alpha_DXT5:
+ case QOpenGLTexture::SRGB_BP_UNorm:
+ return QOpenGLTexture::UInt8;
+
+ case QOpenGLTexture::DepthFormat:
+ case QOpenGLTexture::AlphaFormat:
+ case QOpenGLTexture::RGBFormat:
+ case QOpenGLTexture::RGBAFormat:
+ case QOpenGLTexture::LuminanceFormat:
+ case QOpenGLTexture::LuminanceAlphaFormat:
+ return QOpenGLTexture::UInt8;
+ }
+
+ Q_UNREACHABLE();
+ return QOpenGLTexture::NoPixelType;
+}
+
void QOpenGLTexturePrivate::allocateMutableStorage()
{
+ const QOpenGLTexture::PixelFormat pixelFormat = pixelFormatCompatibleWithInternalFormat(format);
+ const QOpenGLTexture::PixelType pixelType = pixelTypeCompatibleWithInternalFormat(format);
+
switch (target) {
case QOpenGLTexture::TargetBuffer:
// Buffer textures get their storage from an external OpenGL buffer
@@ -328,7 +559,7 @@ void QOpenGLTexturePrivate::allocateMutableStorage()
texFuncs->glTextureImage1D(textureId, target, bindingTarget, level, format,
mipLevelSize(level, dimensions[0]),
0,
- QOpenGLTexture::RGBA, QOpenGLTexture::UInt8, 0);
+ pixelFormat, pixelType, 0);
} else {
qWarning("1D textures are not supported");
return;
@@ -343,7 +574,7 @@ void QOpenGLTexturePrivate::allocateMutableStorage()
mipLevelSize(level, dimensions[0]),
layers,
0,
- QOpenGLTexture::RGBA, QOpenGLTexture::UInt8, 0);
+ pixelFormat, pixelType, 0);
} else {
qWarning("1D array textures are not supported");
return;
@@ -357,7 +588,7 @@ void QOpenGLTexturePrivate::allocateMutableStorage()
mipLevelSize(level, dimensions[0]),
mipLevelSize(level, dimensions[1]),
0,
- QOpenGLTexture::RGBA, QOpenGLTexture::UInt8, 0);
+ pixelFormat, pixelType, 0);
break;
case QOpenGLTexture::TargetCubeMap: {
@@ -377,7 +608,7 @@ void QOpenGLTexturePrivate::allocateMutableStorage()
mipLevelSize(level, dimensions[0]),
mipLevelSize(level, dimensions[1]),
0,
- QOpenGLTexture::RGBA, QOpenGLTexture::UInt8, 0);
+ pixelFormat, pixelType, 0);
}
}
break;
@@ -391,7 +622,7 @@ void QOpenGLTexturePrivate::allocateMutableStorage()
mipLevelSize(level, dimensions[1]),
layers,
0,
- QOpenGLTexture::RGBA, QOpenGLTexture::UInt8, 0);
+ pixelFormat, pixelType, 0);
} else {
qWarning("Array textures are not supported");
return;
@@ -407,7 +638,7 @@ void QOpenGLTexturePrivate::allocateMutableStorage()
mipLevelSize(level, dimensions[1]),
6 * layers,
0,
- QOpenGLTexture::RGBA, QOpenGLTexture::UInt8, 0);
+ pixelFormat, pixelType, 0);
} else {
qWarning("Cubemap Array textures are not supported");
return;
@@ -422,7 +653,7 @@ void QOpenGLTexturePrivate::allocateMutableStorage()
mipLevelSize(level, dimensions[1]),
mipLevelSize(level, dimensions[2]),
0,
- QOpenGLTexture::RGBA, QOpenGLTexture::UInt8, 0);
+ pixelFormat, pixelType, 0);
} else {
qWarning("3D textures are not supported");
return;
@@ -1289,6 +1520,7 @@ QOpenGLTexture *QOpenGLTexturePrivate::createTextureView(QOpenGLTexture::Target
\value D32 Equivalent to GL_DEPTH_COMPONENT32
\value D32F Equivalent to GL_DEPTH_COMPONENT32F
\value D32FS8X24 Equivalent to GL_DEPTH32F_STENCIL8
+ \value S8 Equivalent to GL_STENCIL_INDEX8. Introduced in Qt 5.4
\value RGB_DXT1 Equivalent to GL_COMPRESSED_RGB_S3TC_DXT1_EXT
\value RGBA_DXT1 Equivalent to GL_COMPRESSED_RGBA_S3TC_DXT1_EXT
@@ -1348,6 +1580,7 @@ QOpenGLTexture *QOpenGLTexturePrivate::createTextureView(QOpenGLTexture::Target
\value BGR_Integer Equivalent to GL_BGR_INTEGER
\value RGBA_Integer Equivalent to GL_RGBA_INTEGER
\value BGRA_Integer Equivalent to GL_BGRA_INTEGER
+ \value Stencil Equivalent to GL_STENCIL_INDEX. Introduced in Qt 5.4
\value Depth Equivalent to GL_DEPTH_COMPONENT
\value DepthStencil Equivalent to GL_DEPTH_STENCIL
\value Alpha Equivalent to GL_ALPHA (OpenGL ES 2 only)
@@ -1380,8 +1613,12 @@ QOpenGLTexture *QOpenGLTexturePrivate::createTextureView(QOpenGLTexture::Target
\value UInt16_R5G6B5_Rev Equivalent to GL_UNSIGNED_SHORT_5_6_5_REV
\value UInt16_RGBA4 Equivalent to GL_UNSIGNED_SHORT_4_4_4_4
\value UInt16_RGBA4_Rev Equivalent to GL_UNSIGNED_SHORT_4_4_4_4_REV
+ \value UInt32_RGBA8 Equivalent to GL_UNSIGNED_INT_8_8_8_8
+ \value UInt32_RGBA8_Rev Equivalent to GL_UNSIGNED_INT_8_8_8_8_REV
\value UInt32_RGB10A2 Equivalent to GL_UNSIGNED_INT_10_10_10_2
\value UInt32_RGB10A2_Rev Equivalent to GL_UNSIGNED_INT_2_10_10_10_REV
+ \value UInt32_D24S8 Equivalent to GL_UNSIGNED_INT_24_8. Introduced in Qt 5.4
+ \value Float32_D32_UInt32_S8_X24 Equivalent to GL_FLOAT_32_UNSIGNED_INT_24_8_REV. Introduced in Qt 5.4
*/
/*!
@@ -1483,6 +1720,17 @@ QOpenGLTexture::~QOpenGLTexture()
}
/*!
+ Returns the binding target of this texture.
+
+ \since 5.4
+*/
+QOpenGLTexture::Target QOpenGLTexture::target() const
+{
+ Q_D(const QOpenGLTexture);
+ return d->target;
+}
+
+/*!
Creates the underlying OpenGL texture object. This requires a current valid
OpenGL context. If the texture object already exists, this function does
nothing.
@@ -1820,6 +2068,7 @@ void QOpenGLTexture::setFormat(TextureFormat format)
case D32:
case D32F:
case D32FS8X24:
+ case S8:
case DepthFormat:
case AlphaFormat:
case RGBFormat:
@@ -2063,6 +2312,125 @@ int QOpenGLTexture::faces() const
}
/*!
+ Sets the number of \a samples to allocate storage for when rendering to
+ a multisample capable texture target. This function should
+ be called before storage is allocated for the texture.
+
+ For targets that do not support multisampling this function has
+ no effect.
+
+ \sa samples(), isStorageAllocated()
+*/
+void QOpenGLTexture::setSamples(int samples)
+{
+ Q_D(QOpenGLTexture);
+ d->create();
+ if (isStorageAllocated()) {
+ qWarning("Cannot set sample count on a texture that already has storage allocated.\n"
+ "To do so, destroy() the texture and then create() and setSamples()");
+ return;
+ }
+
+ switch (d->target) {
+ case QOpenGLTexture::Target2DMultisample:
+ case QOpenGLTexture::Target2DMultisampleArray:
+ d->samples = samples;
+ break;
+
+ case QOpenGLTexture::Target1D:
+ case QOpenGLTexture::Target2D:
+ case QOpenGLTexture::Target3D:
+ case QOpenGLTexture::Target1DArray:
+ case QOpenGLTexture::Target2DArray:
+ case QOpenGLTexture::TargetCubeMap:
+ case QOpenGLTexture::TargetCubeMapArray:
+ case QOpenGLTexture::TargetBuffer:
+ case QOpenGLTexture::TargetRectangle:
+
+ qWarning("Texture target does not support multisampling");
+ break;
+ }
+}
+
+/*!
+ Returns the number of multisample sample points for this texture.
+ If storage has not yet been allocated for this texture then
+ this function returns the requested number of samples.
+
+ For texture targets that do not support multisampling this
+ will return 0.
+
+ \sa setSamples(), isStorageAllocated()
+*/
+int QOpenGLTexture::samples() const
+{
+ Q_D(const QOpenGLTexture);
+ return d->samples;
+}
+
+/*!
+ Sets whether the sample positions and number of samples used with
+ a multisample capable texture target to \a fixed. If set to \c true
+ the sample positions and number of samples used are the same for
+ all texels in the image and will not depend upon the image size or
+ internal format. This function should be called before storage is allocated
+ for the texture.
+
+ For targets that do not support multisampling this function has
+ no effect.
+
+ The default value is \c true.
+
+ \sa isFixedSamplePositions(), isStorageAllocated()
+*/
+void QOpenGLTexture::setFixedSamplePositions(bool fixed)
+{
+ Q_D(QOpenGLTexture);
+ d->create();
+ if (isStorageAllocated()) {
+ qWarning("Cannot set sample positions on a texture that already has storage allocated.\n"
+ "To do so, destroy() the texture and then create() and setFixedSamplePositions()");
+ return;
+ }
+
+ switch (d->target) {
+ case QOpenGLTexture::Target2DMultisample:
+ case QOpenGLTexture::Target2DMultisampleArray:
+ d->fixedSamplePositions = fixed;
+ break;
+
+ case QOpenGLTexture::Target1D:
+ case QOpenGLTexture::Target2D:
+ case QOpenGLTexture::Target3D:
+ case QOpenGLTexture::Target1DArray:
+ case QOpenGLTexture::Target2DArray:
+ case QOpenGLTexture::TargetCubeMap:
+ case QOpenGLTexture::TargetCubeMapArray:
+ case QOpenGLTexture::TargetBuffer:
+ case QOpenGLTexture::TargetRectangle:
+
+ qWarning("Texture target does not support multisampling");
+ break;
+ }
+}
+
+/*!
+ Returns whether this texture uses a fixed pattern of multisample
+ samples. If storage has not yet been allocated for this texture then
+ this function returns the requested fixed sample position setting.
+
+ For texture targets that do not support multisampling this
+ will return \c true.
+
+ \sa setFixedSamplePositions(), isStorageAllocated()
+*/
+bool QOpenGLTexture::isFixedSamplePositions() const
+{
+ Q_D(const QOpenGLTexture);
+ return d->fixedSamplePositions;
+}
+
+/*!
Allocates server-side storage for this texture object taking
into account, the format, dimensions, mipmap levels, array
layers and cubemap faces.
@@ -2298,7 +2666,16 @@ void QOpenGLTexture::setData(PixelFormat sourceFormat, PixelType sourceType,
*/
void QOpenGLTexture::setData(const QImage& image, MipMapGeneration genMipMaps)
{
- setFormat(QOpenGLTexture::RGBA8_UNorm);
+ QOpenGLContext *context = QOpenGLContext::currentContext();
+ if (!context) {
+ qWarning("QOpenGLTexture::setData() requires a valid current context");
+ return;
+ }
+ if (context->isOpenGLES() && context->format().majorVersion() < 3)
+ setFormat(QOpenGLTexture::RGBAFormat);
+ else
+ setFormat(QOpenGLTexture::RGBA8_UNorm);
+
setSize(image.width(), image.height());
setMipLevels(genMipMaps == GenerateMipMaps ? maximumMipLevels() : 1);
allocateStorage();
generated by cgit v1.2.3 (git 2.25.1) at 2024-04-26 04:02:16 +0000