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-/****************************************************************************
-**
-** Copyright (C) 2019 The Qt Company Ltd.
-** Contact: http://www.qt.io/licensing/
-**
-** This file is part of the Qt Gui module
-**
-** $QT_BEGIN_LICENSE:LGPL3$
-** Commercial License Usage
-** Licensees holding valid commercial Qt licenses may use this file in
-** accordance with the commercial license agreement provided with the
-** Software or, alternatively, in accordance with the terms contained in
-** a written agreement between you and The Qt Company. For licensing terms
-** and conditions see http://www.qt.io/terms-conditions. For further
-** information use the contact form at http://www.qt.io/contact-us.
-**
-** GNU Lesser General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU Lesser
-** General Public License version 3 as published by the Free Software
-** Foundation and appearing in the file LICENSE.LGPLv3 included in the
-** packaging of this file. Please review the following information to
-** ensure the GNU Lesser General Public License version 3 requirements
-** will be met: https://www.gnu.org/licenses/lgpl.html.
-**
-** GNU General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU
-** General Public License version 2.0 or later as published by the Free
-** Software Foundation and appearing in the file LICENSE.GPL included in
-** the packaging of this file. Please review the following information to
-** ensure the GNU General Public License version 2.0 requirements will be
-** met: http://www.gnu.org/licenses/gpl-2.0.html.
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-#ifndef QRHIGLES2_P_H
-#define QRHIGLES2_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 "qrhigles2_p.h"
-#include "qrhi_p_p.h"
-#include "qshaderdescription_p.h"
-#include <qopengl.h>
-#include <QSurface>
-
-QT_BEGIN_NAMESPACE
-
-class QOpenGLExtensions;
-
-struct QGles2Buffer : public QRhiBuffer
-{
- QGles2Buffer(QRhiImplementation *rhi, Type type, UsageFlags usage, int size);
- ~QGles2Buffer();
- void destroy() override;
- bool create() override;
- QRhiBuffer::NativeBuffer nativeBuffer() override;
- char *beginFullDynamicBufferUpdateForCurrentFrame() override;
- void endFullDynamicBufferUpdateForCurrentFrame() override;
-
- int nonZeroSize = 0;
- GLuint buffer = 0;
- GLenum targetForDataOps;
- char *data = nullptr;
- enum Access {
- AccessNone,
- AccessVertex,
- AccessIndex,
- AccessUniform,
- AccessStorageRead,
- AccessStorageWrite,
- AccessStorageReadWrite,
- AccessUpdate
- };
- struct UsageState {
- Access access;
- };
- UsageState usageState;
- friend class QRhiGles2;
-};
-
-struct QGles2RenderBuffer : public QRhiRenderBuffer
-{
- QGles2RenderBuffer(QRhiImplementation *rhi, Type type, const QSize &pixelSize,
- int sampleCount, QRhiRenderBuffer::Flags flags,
- QRhiTexture::Format backingFormatHint);
- ~QGles2RenderBuffer();
- void destroy() override;
- bool create() override;
- QRhiTexture::Format backingFormat() const override;
-
- GLuint renderbuffer = 0;
- GLuint stencilRenderbuffer = 0; // when packed depth-stencil not supported
- int samples;
- friend class QRhiGles2;
-};
-
-struct QGles2SamplerData
-{
- GLenum glminfilter = 0;
- GLenum glmagfilter = 0;
- GLenum glwraps = 0;
- GLenum glwrapt = 0;
- GLenum gltexcomparefunc = 0;
-};
-
-inline bool operator==(const QGles2SamplerData &a, const QGles2SamplerData &b)
-{
- return a.glminfilter == b.glminfilter
- && a.glmagfilter == b.glmagfilter
- && a.glwraps == b.glwraps
- && a.glwrapt == b.glwrapt
- && a.gltexcomparefunc == b.gltexcomparefunc;
-}
-
-inline bool operator!=(const QGles2SamplerData &a, const QGles2SamplerData &b)
-{
- return !(a == b);
-}
-
-struct QGles2Texture : public QRhiTexture
-{
- QGles2Texture(QRhiImplementation *rhi, Format format, const QSize &pixelSize,
- int sampleCount, Flags flags);
- ~QGles2Texture();
- void destroy() override;
- bool create() override;
- bool createFrom(NativeTexture src) override;
- NativeTexture nativeTexture() override;
-
- bool prepareCreate(QSize *adjustedSize = nullptr);
-
- GLuint texture = 0;
- bool owns = true;
- GLenum target;
- GLenum glintformat;
- GLenum glsizedintformat;
- GLenum glformat;
- GLenum gltype;
- QGles2SamplerData samplerState;
- bool specified = false;
- bool compressedAtlasBuilt = false;
- int mipLevelCount = 0;
-
- enum Access {
- AccessNone,
- AccessSample,
- AccessFramebuffer,
- AccessStorageRead,
- AccessStorageWrite,
- AccessStorageReadWrite,
- AccessUpdate,
- AccessRead
- };
- struct UsageState {
- Access access;
- };
- UsageState usageState;
-
- uint generation = 0;
- friend class QRhiGles2;
-};
-
-struct QGles2Sampler : public QRhiSampler
-{
- QGles2Sampler(QRhiImplementation *rhi, Filter magFilter, Filter minFilter, Filter mipmapMode,
- AddressMode u, AddressMode v, AddressMode w);
- ~QGles2Sampler();
- void destroy() override;
- bool create() override;
-
- QGles2SamplerData d;
- uint generation = 0;
- friend class QRhiGles2;
-};
-
-struct QGles2RenderPassDescriptor : public QRhiRenderPassDescriptor
-{
- QGles2RenderPassDescriptor(QRhiImplementation *rhi);
- ~QGles2RenderPassDescriptor();
- void destroy() override;
- bool isCompatible(const QRhiRenderPassDescriptor *other) const override;
-};
-
-struct QGles2RenderTargetData
-{
- QGles2RenderTargetData(QRhiImplementation *) { }
-
- QGles2RenderPassDescriptor *rp = nullptr;
- QSize pixelSize;
- float dpr = 1;
- int sampleCount = 1;
- int colorAttCount = 0;
- int dsAttCount = 0;
- bool srgbUpdateAndBlend = false;
-};
-
-struct QGles2ReferenceRenderTarget : public QRhiRenderTarget
-{
- QGles2ReferenceRenderTarget(QRhiImplementation *rhi);
- ~QGles2ReferenceRenderTarget();
- void destroy() override;
-
- QSize pixelSize() const override;
- float devicePixelRatio() const override;
- int sampleCount() const override;
-
- QGles2RenderTargetData d;
-};
-
-struct QGles2TextureRenderTarget : public QRhiTextureRenderTarget
-{
- QGles2TextureRenderTarget(QRhiImplementation *rhi, const QRhiTextureRenderTargetDescription &desc, Flags flags);
- ~QGles2TextureRenderTarget();
- void destroy() override;
-
- QSize pixelSize() const override;
- float devicePixelRatio() const override;
- int sampleCount() const override;
-
- QRhiRenderPassDescriptor *newCompatibleRenderPassDescriptor() override;
- bool create() override;
-
- QGles2RenderTargetData d;
- GLuint framebuffer = 0;
- friend class QRhiGles2;
-};
-
-struct QGles2ShaderResourceBindings : public QRhiShaderResourceBindings
-{
- QGles2ShaderResourceBindings(QRhiImplementation *rhi);
- ~QGles2ShaderResourceBindings();
- void destroy() override;
- bool create() override;
-
- bool hasDynamicOffset = false;
- uint generation = 0;
- friend class QRhiGles2;
-};
-
-struct QGles2UniformDescription
-{
- QShaderDescription::VariableType type;
- int glslLocation;
- int binding;
- uint offset;
- int size;
- int arrayDim;
-};
-
-Q_DECLARE_TYPEINFO(QGles2UniformDescription, Q_MOVABLE_TYPE);
-
-struct QGles2SamplerDescription
-{
- int glslLocation;
- int binding;
-};
-
-Q_DECLARE_TYPEINFO(QGles2SamplerDescription, Q_MOVABLE_TYPE);
-
-using QGles2UniformDescriptionVector = QVarLengthArray<QGles2UniformDescription, 8>;
-using QGles2SamplerDescriptionVector = QVarLengthArray<QGles2SamplerDescription, 4>;
-
-struct QGles2UniformState
-{
- static constexpr int MAX_TRACKED_LOCATION = 1023;
- int componentCount;
- float v[4];
-};
-
-struct QGles2GraphicsPipeline : public QRhiGraphicsPipeline
-{
- QGles2GraphicsPipeline(QRhiImplementation *rhi);
- ~QGles2GraphicsPipeline();
- void destroy() override;
- bool create() override;
-
- GLuint program = 0;
- GLenum drawMode = GL_TRIANGLES;
- QGles2UniformDescriptionVector uniforms;
- QGles2SamplerDescriptionVector samplers;
- QGles2UniformState uniformState[QGles2UniformState::MAX_TRACKED_LOCATION + 1];
- uint generation = 0;
- friend class QRhiGles2;
-};
-
-struct QGles2ComputePipeline : public QRhiComputePipeline
-{
- QGles2ComputePipeline(QRhiImplementation *rhi);
- ~QGles2ComputePipeline();
- void destroy() override;
- bool create() override;
-
- GLuint program = 0;
- QGles2UniformDescriptionVector uniforms;
- QGles2SamplerDescriptionVector samplers;
- QGles2UniformState uniformState[QGles2UniformState::MAX_TRACKED_LOCATION + 1];
- uint generation = 0;
- friend class QRhiGles2;
-};
-
-struct QGles2CommandBuffer : public QRhiCommandBuffer
-{
- QGles2CommandBuffer(QRhiImplementation *rhi);
- ~QGles2CommandBuffer();
- void destroy() override;
-
- // keep at a reasonably low value otherwise sizeof Command explodes
- static const int MAX_DYNAMIC_OFFSET_COUNT = 8;
-
- struct Command {
- enum Cmd {
- BeginFrame,
- EndFrame,
- ResetFrame,
- Viewport,
- Scissor,
- BlendConstants,
- StencilRef,
- BindVertexBuffer,
- BindIndexBuffer,
- Draw,
- DrawIndexed,
- BindGraphicsPipeline,
- BindShaderResources,
- BindFramebuffer,
- Clear,
- BufferSubData,
- GetBufferSubData,
- CopyTex,
- ReadPixels,
- SubImage,
- CompressedImage,
- CompressedSubImage,
- BlitFromRenderbuffer,
- GenMip,
- BindComputePipeline,
- Dispatch,
- BarriersForPass,
- Barrier
- };
- Cmd cmd;
-
- // QRhi*/QGles2* references should be kept at minimum (so no
- // QRhiTexture/Buffer/etc. pointers).
- union Args {
- struct {
- float x, y, w, h;
- float d0, d1;
- } viewport;
- struct {
- int x, y, w, h;
- } scissor;
- struct {
- float r, g, b, a;
- } blendConstants;
- struct {
- quint32 ref;
- QRhiGraphicsPipeline *ps;
- } stencilRef;
- struct {
- QRhiGraphicsPipeline *ps;
- GLuint buffer;
- quint32 offset;
- int binding;
- } bindVertexBuffer;
- struct {
- GLuint buffer;
- quint32 offset;
- GLenum type;
- } bindIndexBuffer;
- struct {
- QRhiGraphicsPipeline *ps;
- quint32 vertexCount;
- quint32 firstVertex;
- quint32 instanceCount;
- quint32 baseInstance;
- } draw;
- struct {
- QRhiGraphicsPipeline *ps;
- quint32 indexCount;
- quint32 firstIndex;
- quint32 instanceCount;
- quint32 baseInstance;
- qint32 baseVertex;
- } drawIndexed;
- struct {
- QRhiGraphicsPipeline *ps;
- } bindGraphicsPipeline;
- struct {
- QRhiGraphicsPipeline *maybeGraphicsPs;
- QRhiComputePipeline *maybeComputePs;
- QRhiShaderResourceBindings *srb;
- int dynamicOffsetCount;
- uint dynamicOffsetPairs[MAX_DYNAMIC_OFFSET_COUNT * 2]; // binding, offset
- } bindShaderResources;
- struct {
- GLbitfield mask;
- float c[4];
- float d;
- quint32 s;
- } clear;
- struct {
- GLuint fbo;
- bool srgb;
- int colorAttCount;
- } bindFramebuffer;
- struct {
- GLenum target;
- GLuint buffer;
- int offset;
- int size;
- const void *data; // must come from retainData()
- } bufferSubData;
- struct {
- QRhiBufferReadbackResult *result;
- GLenum target;
- GLuint buffer;
- int offset;
- int size;
- } getBufferSubData;
- struct {
- GLenum srcFaceTarget;
- GLuint srcTexture;
- int srcLevel;
- int srcX;
- int srcY;
- GLenum dstTarget;
- GLuint dstTexture;
- GLenum dstFaceTarget;
- int dstLevel;
- int dstX;
- int dstY;
- int w;
- int h;
- } copyTex;
- struct {
- QRhiReadbackResult *result;
- GLuint texture;
- int w;
- int h;
- QRhiTexture::Format format;
- GLenum readTarget;
- int level;
- } readPixels;
- struct {
- GLenum target;
- GLuint texture;
- GLenum faceTarget;
- int level;
- int dx;
- int dy;
- int w;
- int h;
- GLenum glformat;
- GLenum gltype;
- int rowStartAlign;
- const void *data; // must come from retainImage()
- } subImage;
- struct {
- GLenum target;
- GLuint texture;
- GLenum faceTarget;
- int level;
- GLenum glintformat;
- int w;
- int h;
- int size;
- const void *data; // must come from retainData()
- } compressedImage;
- struct {
- GLenum target;
- GLuint texture;
- GLenum faceTarget;
- int level;
- int dx;
- int dy;
- int w;
- int h;
- GLenum glintformat;
- int size;
- const void *data; // must come from retainData()
- } compressedSubImage;
- struct {
- GLuint renderbuffer;
- int w;
- int h;
- GLenum target;
- GLuint texture;
- int dstLevel;
- } blitFromRb;
- struct {
- GLenum target;
- GLuint texture;
- } genMip;
- struct {
- QRhiComputePipeline *ps;
- } bindComputePipeline;
- struct {
- GLuint x;
- GLuint y;
- GLuint z;
- } dispatch;
- struct {
- int trackerIndex;
- } barriersForPass;
- struct {
- GLbitfield barriers;
- } barrier;
- } args;
- };
-
- enum PassType {
- NoPass,
- RenderPass,
- ComputePass
- };
-
- QRhiBackendCommandList<Command> commands;
- QVarLengthArray<QRhiPassResourceTracker, 8> passResTrackers;
- int currentPassResTrackerIndex;
-
- PassType recordingPass;
- bool passNeedsResourceTracking;
- QRhiRenderTarget *currentTarget;
- QRhiGraphicsPipeline *currentGraphicsPipeline;
- QRhiComputePipeline *currentComputePipeline;
- uint currentPipelineGeneration;
- QRhiShaderResourceBindings *currentGraphicsSrb;
- QRhiShaderResourceBindings *currentComputeSrb;
- uint currentSrbGeneration;
-
- struct GraphicsPassState {
- bool valid = false;
- bool scissor;
- bool cullFace;
- GLenum cullMode;
- GLenum frontFace;
- bool blendEnabled;
- struct ColorMask { bool r, g, b, a; } colorMask;
- struct Blend {
- GLenum srcColor;
- GLenum dstColor;
- GLenum srcAlpha;
- GLenum dstAlpha;
- GLenum opColor;
- GLenum opAlpha;
- } blend;
- bool depthTest;
- bool depthWrite;
- GLenum depthFunc;
- bool stencilTest;
- GLuint stencilReadMask;
- GLuint stencilWriteMask;
- struct StencilFace {
- GLenum func;
- GLenum failOp;
- GLenum zfailOp;
- GLenum zpassOp;
- } stencil[2]; // front, back
- bool polyOffsetFill;
- float polyOffsetFactor;
- float polyOffsetUnits;
- float lineWidth;
- void reset() { valid = false; }
- struct {
- // not part of QRhiGraphicsPipeline but used by setGraphicsPipeline()
- GLint stencilRef = 0;
- } dynamic;
- } graphicsPassState;
-
- struct ComputePassState {
- enum Access {
- Read = 0x01,
- Write = 0x02
- };
- QHash<QRhiResource *, QPair<int, bool> > writtenResources;
- void reset() {
- writtenResources.clear();
- }
- } computePassState;
-
- struct TextureUnitState {
- void *ps;
- uint psGeneration;
- uint texture;
- } textureUnitState[16];
-
- QVarLengthArray<QByteArray, 4> dataRetainPool;
- QVarLengthArray<QRhiBufferData, 4> bufferDataRetainPool;
- QVarLengthArray<QImage, 4> imageRetainPool;
-
- // relies heavily on implicit sharing (no copies of the actual data will be made)
- const void *retainData(const QByteArray &data) {
- dataRetainPool.append(data);
- return dataRetainPool.last().constData();
- }
- const uchar *retainBufferData(const QRhiBufferData &data) {
- bufferDataRetainPool.append(data);
- return reinterpret_cast<const uchar *>(bufferDataRetainPool.last().constData());
- }
- const void *retainImage(const QImage &image) {
- imageRetainPool.append(image);
- return imageRetainPool.last().constBits();
- }
- void resetCommands() {
- commands.reset();
- dataRetainPool.clear();
- bufferDataRetainPool.clear();
- imageRetainPool.clear();
-
- passResTrackers.clear();
- currentPassResTrackerIndex = -1;
- }
- void resetState() {
- recordingPass = NoPass;
- passNeedsResourceTracking = true;
- currentTarget = nullptr;
- resetCommands();
- resetCachedState();
- }
- void resetCachedState() {
- currentGraphicsPipeline = nullptr;
- currentComputePipeline = nullptr;
- currentPipelineGeneration = 0;
- currentGraphicsSrb = nullptr;
- currentComputeSrb = nullptr;
- currentSrbGeneration = 0;
- graphicsPassState.reset();
- computePassState.reset();
- memset(textureUnitState, 0, sizeof(textureUnitState));
- }
-};
-
-inline bool operator==(const QGles2CommandBuffer::GraphicsPassState::StencilFace &a,
- const QGles2CommandBuffer::GraphicsPassState::StencilFace &b)
-{
- return a.func == b.func
- && a.failOp == b.failOp
- && a.zfailOp == b.zfailOp
- && a.zpassOp == b.zpassOp;
-}
-
-inline bool operator!=(const QGles2CommandBuffer::GraphicsPassState::StencilFace &a,
- const QGles2CommandBuffer::GraphicsPassState::StencilFace &b)
-{
- return !(a == b);
-}
-
-inline bool operator==(const QGles2CommandBuffer::GraphicsPassState::ColorMask &a,
- const QGles2CommandBuffer::GraphicsPassState::ColorMask &b)
-{
- return a.r == b.r && a.g == b.g && a.b == b.b && a.a == b.a;
-}
-
-inline bool operator!=(const QGles2CommandBuffer::GraphicsPassState::ColorMask &a,
- const QGles2CommandBuffer::GraphicsPassState::ColorMask &b)
-{
- return !(a == b);
-}
-
-inline bool operator==(const QGles2CommandBuffer::GraphicsPassState::Blend &a,
- const QGles2CommandBuffer::GraphicsPassState::Blend &b)
-{
- return a.srcColor == b.srcColor
- && a.dstColor == b.dstColor
- && a.srcAlpha == b.srcAlpha
- && a.dstAlpha == b.dstAlpha
- && a.opColor == b.opColor
- && a.opAlpha == b.opAlpha;
-}
-
-inline bool operator!=(const QGles2CommandBuffer::GraphicsPassState::Blend &a,
- const QGles2CommandBuffer::GraphicsPassState::Blend &b)
-{
- return !(a == b);
-}
-
-struct QGles2SwapChain : public QRhiSwapChain
-{
- QGles2SwapChain(QRhiImplementation *rhi);
- ~QGles2SwapChain();
- void destroy() override;
-
- QRhiCommandBuffer *currentFrameCommandBuffer() override;
- QRhiRenderTarget *currentFrameRenderTarget() override;
-
- QSize surfacePixelSize() override;
-
- QRhiRenderPassDescriptor *newCompatibleRenderPassDescriptor() override;
- bool createOrResize() override;
-
- QSurface *surface = nullptr;
- QSize pixelSize;
- QGles2ReferenceRenderTarget rt;
- QGles2CommandBuffer cb;
- int frameCount = 0;
-};
-
-class QRhiGles2 : public QRhiImplementation
-{
-public:
- QRhiGles2(QRhiGles2InitParams *params, QRhiGles2NativeHandles *importDevice = nullptr);
-
- bool create(QRhi::Flags flags) override;
- void destroy() override;
-
- QRhiGraphicsPipeline *createGraphicsPipeline() override;
- QRhiComputePipeline *createComputePipeline() override;
- QRhiShaderResourceBindings *createShaderResourceBindings() override;
- QRhiBuffer *createBuffer(QRhiBuffer::Type type,
- QRhiBuffer::UsageFlags usage,
- int size) override;
- QRhiRenderBuffer *createRenderBuffer(QRhiRenderBuffer::Type type,
- const QSize &pixelSize,
- int sampleCount,
- QRhiRenderBuffer::Flags flags,
- QRhiTexture::Format backingFormatHint) override;
- QRhiTexture *createTexture(QRhiTexture::Format format,
- const QSize &pixelSize,
- int sampleCount,
- QRhiTexture::Flags flags) override;
- QRhiSampler *createSampler(QRhiSampler::Filter magFilter,
- QRhiSampler::Filter minFilter,
- QRhiSampler::Filter mipmapMode,
- QRhiSampler:: AddressMode u,
- QRhiSampler::AddressMode v,
- QRhiSampler::AddressMode w) override;
-
- QRhiTextureRenderTarget *createTextureRenderTarget(const QRhiTextureRenderTargetDescription &desc,
- QRhiTextureRenderTarget::Flags flags) override;
-
- QRhiSwapChain *createSwapChain() override;
- QRhi::FrameOpResult beginFrame(QRhiSwapChain *swapChain, QRhi::BeginFrameFlags flags) override;
- QRhi::FrameOpResult endFrame(QRhiSwapChain *swapChain, QRhi::EndFrameFlags flags) override;
- QRhi::FrameOpResult beginOffscreenFrame(QRhiCommandBuffer **cb, QRhi::BeginFrameFlags flags) override;
- QRhi::FrameOpResult endOffscreenFrame(QRhi::EndFrameFlags flags) override;
- QRhi::FrameOpResult finish() override;
-
- void resourceUpdate(QRhiCommandBuffer *cb, QRhiResourceUpdateBatch *resourceUpdates) override;
-
- void beginPass(QRhiCommandBuffer *cb,
- QRhiRenderTarget *rt,
- const QColor &colorClearValue,
- const QRhiDepthStencilClearValue &depthStencilClearValue,
- QRhiResourceUpdateBatch *resourceUpdates,
- QRhiCommandBuffer::BeginPassFlags flags) override;
- void endPass(QRhiCommandBuffer *cb, QRhiResourceUpdateBatch *resourceUpdates) override;
-
- void setGraphicsPipeline(QRhiCommandBuffer *cb,
- QRhiGraphicsPipeline *ps) override;
-
- void setShaderResources(QRhiCommandBuffer *cb,
- QRhiShaderResourceBindings *srb,
- int dynamicOffsetCount,
- const QRhiCommandBuffer::DynamicOffset *dynamicOffsets) override;
-
- void setVertexInput(QRhiCommandBuffer *cb,
- int startBinding, int bindingCount, const QRhiCommandBuffer::VertexInput *bindings,
- QRhiBuffer *indexBuf, quint32 indexOffset,
- QRhiCommandBuffer::IndexFormat indexFormat) override;
-
- void setViewport(QRhiCommandBuffer *cb, const QRhiViewport &viewport) override;
- void setScissor(QRhiCommandBuffer *cb, const QRhiScissor &scissor) override;
- void setBlendConstants(QRhiCommandBuffer *cb, const QColor &c) override;
- void setStencilRef(QRhiCommandBuffer *cb, quint32 refValue) override;
-
- void draw(QRhiCommandBuffer *cb, quint32 vertexCount,
- quint32 instanceCount, quint32 firstVertex, quint32 firstInstance) override;
-
- void drawIndexed(QRhiCommandBuffer *cb, quint32 indexCount,
- quint32 instanceCount, quint32 firstIndex,
- qint32 vertexOffset, quint32 firstInstance) override;
-
- void debugMarkBegin(QRhiCommandBuffer *cb, const QByteArray &name) override;
- void debugMarkEnd(QRhiCommandBuffer *cb) override;
- void debugMarkMsg(QRhiCommandBuffer *cb, const QByteArray &msg) override;
-
- void beginComputePass(QRhiCommandBuffer *cb,
- QRhiResourceUpdateBatch *resourceUpdates,
- QRhiCommandBuffer::BeginPassFlags flags) override;
- void endComputePass(QRhiCommandBuffer *cb, QRhiResourceUpdateBatch *resourceUpdates) override;
- void setComputePipeline(QRhiCommandBuffer *cb, QRhiComputePipeline *ps) override;
- void dispatch(QRhiCommandBuffer *cb, int x, int y, int z) override;
-
- const QRhiNativeHandles *nativeHandles(QRhiCommandBuffer *cb) override;
- void beginExternal(QRhiCommandBuffer *cb) override;
- void endExternal(QRhiCommandBuffer *cb) override;
-
- QList<int> supportedSampleCounts() const override;
- int ubufAlignment() const override;
- bool isYUpInFramebuffer() const override;
- bool isYUpInNDC() const override;
- bool isClipDepthZeroToOne() const override;
- QMatrix4x4 clipSpaceCorrMatrix() const override;
- bool isTextureFormatSupported(QRhiTexture::Format format, QRhiTexture::Flags flags) const override;
- bool isFeatureSupported(QRhi::Feature feature) const override;
- int resourceLimit(QRhi::ResourceLimit limit) const override;
- const QRhiNativeHandles *nativeHandles() override;
- void sendVMemStatsToProfiler() override;
- bool makeThreadLocalNativeContextCurrent() override;
- void releaseCachedResources() override;
- bool isDeviceLost() const override;
-
- bool ensureContext(QSurface *surface = nullptr) const;
- void executeDeferredReleases();
- void trackedBufferBarrier(QGles2CommandBuffer *cbD, QGles2Buffer *bufD, QGles2Buffer::Access access);
- void trackedImageBarrier(QGles2CommandBuffer *cbD, QGles2Texture *texD, QGles2Texture::Access access);
- void enqueueSubresUpload(QGles2Texture *texD, QGles2CommandBuffer *cbD,
- int layer, int level, const QRhiTextureSubresourceUploadDescription &subresDesc);
- void enqueueResourceUpdates(QRhiCommandBuffer *cb, QRhiResourceUpdateBatch *resourceUpdates);
- void trackedRegisterBuffer(QRhiPassResourceTracker *passResTracker,
- QGles2Buffer *bufD,
- QRhiPassResourceTracker::BufferAccess access,
- QRhiPassResourceTracker::BufferStage stage);
- void trackedRegisterTexture(QRhiPassResourceTracker *passResTracker,
- QGles2Texture *texD,
- QRhiPassResourceTracker::TextureAccess access,
- QRhiPassResourceTracker::TextureStage stage);
- void executeCommandBuffer(QRhiCommandBuffer *cb);
- void executeBindGraphicsPipeline(QGles2CommandBuffer *cbD, QGles2GraphicsPipeline *psD);
- void bindShaderResources(QGles2CommandBuffer *cbD,
- QRhiGraphicsPipeline *maybeGraphicsPs, QRhiComputePipeline *maybeComputePs,
- QRhiShaderResourceBindings *srb,
- const uint *dynOfsPairs, int dynOfsCount);
- QGles2RenderTargetData *enqueueBindFramebuffer(QRhiRenderTarget *rt, QGles2CommandBuffer *cbD,
- bool *wantsColorClear = nullptr, bool *wantsDsClear = nullptr);
- void enqueueBarriersForPass(QGles2CommandBuffer *cbD);
- int effectiveSampleCount(int sampleCount) const;
- QByteArray shaderSource(const QRhiShaderStage &shaderStage, int *glslVersion);
- bool compileShader(GLuint program, const QRhiShaderStage &shaderStage, int *glslVersion);
- bool linkProgram(GLuint program);
- void registerUniformIfActive(const QShaderDescription::BlockVariable &var,
- const QByteArray &namePrefix, int binding, int baseOffset,
- GLuint program,
- QSet<int> *activeUniformLocations,
- QGles2UniformDescriptionVector *dst);
- void gatherUniforms(GLuint program, const QShaderDescription::UniformBlock &ub,
- QSet<int> *activeUniformLocations, QGles2UniformDescriptionVector *dst);
- void gatherSamplers(GLuint program, const QShaderDescription::InOutVariable &v,
- QGles2SamplerDescriptionVector *dst);
- bool isProgramBinaryDiskCacheEnabled() const;
-
- enum DiskCacheResult {
- DiskCacheHit,
- DiskCacheMiss,
- DiskCacheError
- };
- DiskCacheResult tryLoadFromDiskCache(const QRhiShaderStage *stages,
- int stageCount,
- GLuint program,
- const QVector<QShaderDescription::InOutVariable> &inputVars,
- QByteArray *cacheKey);
- void trySaveToDiskCache(GLuint program, const QByteArray &cacheKey);
-
- QOpenGLContext *ctx = nullptr;
- bool importedContext = false;
- QSurfaceFormat requestedFormat;
- QSurface *fallbackSurface = nullptr;
- QWindow *maybeWindow = nullptr;
- mutable bool needsMakeCurrent = false;
- QOpenGLExtensions *f = nullptr;
- uint vao = 0;
- struct Caps {
- Caps()
- : ctxMajor(2),
- ctxMinor(0),
- maxTextureSize(2048),
- maxDrawBuffers(4),
- maxSamples(16),
- maxThreadGroupsPerDimension(0),
- maxThreadsPerThreadGroup(0),
- maxThreadGroupsX(0),
- maxThreadGroupsY(0),
- maxThreadGroupsZ(0),
- msaaRenderBuffer(false),
- multisampledTexture(false),
- npotTextureFull(true),
- gles(false),
- fixedIndexPrimitiveRestart(false),
- bgraExternalFormat(false),
- bgraInternalFormat(false),
- r8Format(false),
- r16Format(false),
- floatFormats(false),
- depthTexture(false),
- packedDepthStencil(false),
- needsDepthStencilCombinedAttach(false),
- srgbCapableDefaultFramebuffer(false),
- coreProfile(false),
- uniformBuffers(false),
- elementIndexUint(false),
- depth24(false),
- rgba8Format(false),
- instancing(false),
- baseVertex(false),
- compute(false),
- textureCompareMode(false),
- properMapBuffer(false),
- nonBaseLevelFramebufferTexture(false),
- texelFetch(false),
- intAttributes(true),
- screenSpaceDerivatives(false)
- { }
- int ctxMajor;
- int ctxMinor;
- int maxTextureSize;
- int maxDrawBuffers;
- int maxSamples;
- int maxThreadGroupsPerDimension;
- int maxThreadsPerThreadGroup;
- int maxThreadGroupsX;
- int maxThreadGroupsY;
- int maxThreadGroupsZ;
- // Multisample fb and blit are supported (GLES 3.0 or OpenGL 3.x). Not
- // the same as multisample textures!
- uint msaaRenderBuffer : 1;
- uint multisampledTexture : 1;
- uint npotTextureFull : 1;
- uint gles : 1;
- uint fixedIndexPrimitiveRestart : 1;
- uint bgraExternalFormat : 1;
- uint bgraInternalFormat : 1;
- uint r8Format : 1;
- uint r16Format : 1;
- uint floatFormats : 1;
- uint depthTexture : 1;
- uint packedDepthStencil : 1;
- uint needsDepthStencilCombinedAttach : 1;
- uint srgbCapableDefaultFramebuffer : 1;
- uint coreProfile : 1;
- uint uniformBuffers : 1;
- uint elementIndexUint : 1;
- uint depth24 : 1;
- uint rgba8Format : 1;
- uint instancing : 1;
- uint baseVertex : 1;
- uint compute : 1;
- uint textureCompareMode : 1;
- uint properMapBuffer : 1;
- uint nonBaseLevelFramebufferTexture : 1;
- uint texelFetch : 1;
- uint intAttributes : 1;
- uint screenSpaceDerivatives : 1;
- } caps;
- QGles2SwapChain *currentSwapChain = nullptr;
- QList<GLint> supportedCompressedFormats;
- mutable QList<int> supportedSampleCountList;
- QRhiGles2NativeHandles nativeHandlesStruct;
- mutable bool contextLost = false;
-
- struct DeferredReleaseEntry {
- enum Type {
- Buffer,
- Pipeline,
- Texture,
- RenderBuffer,
- TextureRenderTarget
- };
- Type type;
- union {
- struct {
- GLuint buffer;
- } buffer;
- struct {
- GLuint program;
- } pipeline;
- struct {
- GLuint texture;
- } texture;
- struct {
- GLuint renderbuffer;
- GLuint renderbuffer2;
- } renderbuffer;
- struct {
- GLuint framebuffer;
- } textureRenderTarget;
- };
- };
- QList<DeferredReleaseEntry> releaseQueue;
-
- struct OffscreenFrame {
- OffscreenFrame(QRhiImplementation *rhi) : cbWrapper(rhi) { }
- bool active = false;
- QGles2CommandBuffer cbWrapper;
- } ofr;
-
- QHash<QRhiShaderStage, uint> m_shaderCache;
-};
-
-Q_DECLARE_TYPEINFO(QRhiGles2::DeferredReleaseEntry, Q_MOVABLE_TYPE);
-
-QT_END_NAMESPACE
-
-#endif
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