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| |
| #ifndef QOPENGLFRAMEBUFFEROBJECT_P_H |
| #define QOPENGLFRAMEBUFFEROBJECT_P_H |
| |
| // |
| // W A R N I N G |
| // ------------- |
| // |
| // This file is not part of the Qt API. It exists purely as an |
| // implementation detail. This header file may change from version to |
| // version without notice, or even be removed. |
| // |
| // We mean it. |
| // |
| |
| #include <QtGui/private/qtguiglobal_p.h> |
| #include <qopenglframebufferobject.h> |
| #include <private/qopenglcontext_p.h> |
| #include <private/qopenglextensions_p.h> |
| |
| QT_BEGIN_NAMESPACE |
| |
| class QOpenGLFramebufferObjectFormatPrivate |
| { |
| public: |
| QOpenGLFramebufferObjectFormatPrivate() |
| : ref(1), |
| samples(0), |
| attachment(QOpenGLFramebufferObject::NoAttachment), |
| target(GL_TEXTURE_2D), |
| mipmap(false) |
| { |
| #ifndef QT_OPENGL_ES_2 |
| // There is nothing that says QOpenGLFramebufferObjectFormat needs a current |
| // context, so we need a fallback just to be safe, even though in pratice there |
| // will usually be a context current. |
| QOpenGLContext *ctx = QOpenGLContext::currentContext(); |
| const bool isES = ctx ? ctx->isOpenGLES() : QOpenGLContext::openGLModuleType() != QOpenGLContext::LibGL; |
| internal_format = isES ? GL_RGBA : GL_RGBA8; |
| #else |
| internal_format = GL_RGBA; |
| #endif |
| } |
| QOpenGLFramebufferObjectFormatPrivate |
| (const QOpenGLFramebufferObjectFormatPrivate *other) |
| : ref(1), |
| samples(other->samples), |
| attachment(other->attachment), |
| target(other->target), |
| internal_format(other->internal_format), |
| mipmap(other->mipmap) |
| { |
| } |
| bool equals(const QOpenGLFramebufferObjectFormatPrivate *other) |
| { |
| return samples == other->samples && |
| attachment == other->attachment && |
| target == other->target && |
| internal_format == other->internal_format && |
| mipmap == other->mipmap; |
| } |
| |
| QAtomicInt ref; |
| int samples; |
| QOpenGLFramebufferObject::Attachment attachment; |
| GLenum target; |
| GLenum internal_format; |
| uint mipmap : 1; |
| }; |
| |
| class QOpenGLFramebufferObjectPrivate |
| { |
| public: |
| QOpenGLFramebufferObjectPrivate() : fbo_guard(nullptr), depth_buffer_guard(nullptr) |
| , stencil_buffer_guard(nullptr) |
| , valid(false) {} |
| ~QOpenGLFramebufferObjectPrivate() {} |
| |
| void init(QOpenGLFramebufferObject *q, const QSize &size, |
| QOpenGLFramebufferObject::Attachment attachment, |
| GLenum texture_target, GLenum internal_format, |
| GLint samples = 0, bool mipmap = false); |
| void initTexture(int idx); |
| void initColorBuffer(int idx, GLint *samples); |
| void initDepthStencilAttachments(QOpenGLContext *ctx, QOpenGLFramebufferObject::Attachment attachment); |
| |
| bool checkFramebufferStatus(QOpenGLContext *ctx) const; |
| QOpenGLSharedResourceGuard *fbo_guard; |
| QOpenGLSharedResourceGuard *depth_buffer_guard; |
| QOpenGLSharedResourceGuard *stencil_buffer_guard; |
| GLenum target; |
| QSize dsSize; |
| QOpenGLFramebufferObjectFormat format; |
| int requestedSamples; |
| uint valid : 1; |
| QOpenGLFramebufferObject::Attachment fbo_attachment; |
| QOpenGLExtensions funcs; |
| |
| struct ColorAttachment { |
| ColorAttachment() : internalFormat(0), guard(nullptr) { } |
| ColorAttachment(const QSize &size, GLenum internalFormat) |
| : size(size), internalFormat(internalFormat), guard(nullptr) { } |
| QSize size; |
| GLenum internalFormat; |
| QOpenGLSharedResourceGuard *guard; |
| }; |
| QVector<ColorAttachment> colorAttachments; |
| |
| inline GLuint fbo() const { return fbo_guard ? fbo_guard->id() : 0; } |
| }; |
| |
| |
| QT_END_NAMESPACE |
| |
| #endif // QOPENGLFRAMEBUFFEROBJECT_P_H |