forked from quickshell/quickshell
135 lines
3 KiB
C++
135 lines
3 KiB
C++
#pragma once
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#include <cstdint>
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#include <memory>
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#include <qhash.h>
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#include <qlist.h>
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#include <qmatrix4x4.h>
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#include <qobject.h>
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#include <qtclasshelpermacros.h>
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#include <qtmetamacros.h>
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#include <qvariant.h>
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#include <sys/types.h>
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#include <wayland-client-protocol.h>
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#include <wayland-client.h>
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#include "../../core/stacklist.hpp"
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class QQuickWindow;
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namespace qs::wayland::buffer {
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class WlBufferManagerPrivate;
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class WlBufferQSGTexture;
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struct WlBufferTransform {
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enum Transform : uint8_t {
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Normal0 = 0,
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Normal90 = 1,
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Normal180 = 2,
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Normal270 = 3,
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Flipped0 = 4,
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Flipped90 = 5,
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Flipped180 = 6,
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Flipped270 = 7,
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} transform = Normal0;
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WlBufferTransform() = default;
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WlBufferTransform(uint8_t transform): transform(static_cast<Transform>(transform)) {}
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[[nodiscard]] int degrees() const { return 90 * (this->transform & 0b11111011); }
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[[nodiscard]] bool flip() const { return this->transform & 0b00000100; }
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void apply(QMatrix4x4& matrix) const {
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matrix.rotate(this->flip() ? 180 : 0, 0, 1, 0);
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matrix.rotate(static_cast<float>(this->degrees()), 0, 0, 1);
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}
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};
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struct WlBufferRequest {
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uint32_t width = 0;
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uint32_t height = 0;
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struct DmaFormat {
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DmaFormat() = default;
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DmaFormat(uint32_t format): format(format) {}
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uint32_t format = 0;
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StackList<uint64_t, 10> modifiers;
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};
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struct {
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StackList<uint32_t, 1> formats;
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} shm;
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struct {
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dev_t device = 0;
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StackList<DmaFormat, 1> formats;
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} dmabuf;
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};
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class WlBuffer {
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public:
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virtual ~WlBuffer() = default;
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Q_DISABLE_COPY_MOVE(WlBuffer);
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[[nodiscard]] virtual wl_buffer* buffer() const = 0;
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[[nodiscard]] virtual QSize size() const = 0;
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[[nodiscard]] virtual bool isCompatible(const WlBufferRequest& request) const = 0;
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[[nodiscard]] operator bool() const { return this->buffer(); }
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// Must be called from render thread.
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[[nodiscard]] virtual WlBufferQSGTexture* createQsgTexture(QQuickWindow* window) const = 0;
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WlBufferTransform transform;
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protected:
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explicit WlBuffer() = default;
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};
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class WlBufferSwapchain {
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public:
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[[nodiscard]] WlBuffer*
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createBackbuffer(const WlBufferRequest& request, bool* newBuffer = nullptr);
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void swapBuffers() { this->presentSecondBuffer = !this->presentSecondBuffer; }
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[[nodiscard]] WlBuffer* backbuffer() const {
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return this->presentSecondBuffer ? this->buffer1.get() : this->buffer2.get();
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}
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[[nodiscard]] WlBuffer* frontbuffer() const {
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return this->presentSecondBuffer ? this->buffer2.get() : this->buffer1.get();
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}
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private:
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std::unique_ptr<WlBuffer> buffer1;
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std::unique_ptr<WlBuffer> buffer2;
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bool presentSecondBuffer = false;
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friend class WlBufferQSGDisplayNode;
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};
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class WlBufferManager: public QObject {
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Q_OBJECT;
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public:
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~WlBufferManager() override;
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Q_DISABLE_COPY_MOVE(WlBufferManager);
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static WlBufferManager* instance();
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[[nodiscard]] bool isReady() const;
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[[nodiscard]] WlBuffer* createBuffer(const WlBufferRequest& request);
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signals:
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void ready();
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private:
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explicit WlBufferManager();
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WlBufferManagerPrivate* p;
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};
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} // namespace qs::wayland::buffer
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