1 files changed, 98 insertions, 0 deletions
diff --git a/tests/manual/rhi/shared/imgui/qrhiimgui_p.h b/tests/manual/rhi/shared/imgui/qrhiimgui_p.h
new file mode 100644
index 0000000000..ec86c2af7f
--- /dev/null
+++ b/tests/manual/rhi/shared/imgui/qrhiimgui_p.h
@@ -0,0 +1,98 @@
+// Copyright (C) 2022 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
+
+#ifndef QRHIIMGUI_P_H
+#define QRHIIMGUI_P_H
+
+#include <rhi/qrhi.h>
+
+QT_BEGIN_NAMESPACE
+
+class QEvent;
+
+class QRhiImguiRenderer
+{
+public:
+    ~QRhiImguiRenderer();
+
+    struct CmdListBuffer {
+        quint32 offset;
+        QByteArray data;
+    };
+
+    struct DrawCmd {
+        int cmdListBufferIdx;
+        int textureIndex;
+        quint32 indexOffset;
+        quint32 elemCount;
+        QPointF itemPixelOffset;
+        QVector4D clipRect;
+    };
+
+    struct StaticRenderData {
+        QImage fontTextureData;
+    };
+
+    struct FrameRenderData {
+        quint32 totalVbufSize = 0;
+        quint32 totalIbufSize = 0;
+        QVarLengthArray<CmdListBuffer, 4> vbuf;
+        QVarLengthArray<CmdListBuffer, 4> ibuf;
+        QVarLengthArray<DrawCmd, 4> draw;
+        QSize outputPixelSize;
+    };
+
+    StaticRenderData sf;
+    FrameRenderData f;
+
+    void prepare(QRhi *rhi,
+                 QRhiRenderTarget *rt,
+                 QRhiCommandBuffer *cb,
+                 const QMatrix4x4 &mvp,
+                 float opacity = 1.0f,
+                 float hdrWhiteLevelMultiplierOrZeroForSDRsRGB = 0.0f);
+    void render();
+    void releaseResources();
+
+private:
+    QRhi *m_rhi = nullptr;
+    QRhiRenderTarget *m_rt = nullptr;
+    QRhiCommandBuffer *m_cb = nullptr;
+
+    std::unique_ptr<QRhiBuffer> m_vbuf;
+    std::unique_ptr<QRhiBuffer> m_ibuf;
+    std::unique_ptr<QRhiBuffer> m_ubuf;
+    std::unique_ptr<QRhiGraphicsPipeline> m_ps;
+    QVector<quint32> m_renderPassFormat;
+    std::unique_ptr<QRhiSampler> m_sampler;
+
+    struct Texture {
+        QImage image;
+        QRhiTexture *tex = nullptr;
+        QRhiShaderResourceBindings *srb = nullptr;
+    };
+    QVector<Texture> m_textures;
+};
+
+class QRhiImgui
+{
+public:
+    QRhiImgui();
+    ~QRhiImgui();
+
+    using FrameFunc = std::function<void()>;
+    void nextFrame(const QSizeF &logicalOutputSize, float dpr, const QPointF &logicalOffset, FrameFunc frameFunc);
+    void syncRenderer(QRhiImguiRenderer *renderer);
+    bool processEvent(QEvent *e);
+
+    void rebuildFontAtlas();
+
+private:
+    QRhiImguiRenderer::StaticRenderData sf;
+    QRhiImguiRenderer::FrameRenderData f;
+    Qt::MouseButtons pressedMouseButtons;
+};
+
+QT_END_NAMESPACE
+
+#endif