diff options
Diffstat (limited to 'src/gui/rhi/qrhigles2.cpp')
| -rw-r--r-- | src/gui/rhi/qrhigles2.cpp | 441 |
1 files changed, 342 insertions, 99 deletions
diff --git a/src/gui/rhi/qrhigles2.cpp b/src/gui/rhi/qrhigles2.cpp index b394354787..3ba83464d2 100644 --- a/src/gui/rhi/qrhigles2.cpp +++ b/src/gui/rhi/qrhigles2.cpp @@ -137,13 +137,6 @@ QT_BEGIN_NAMESPACE \brief Holds the OpenGL context used by the QRhi. */ -/*! - \class QRhiGles2TextureNativeHandles - \internal - \inmodule QtGui - \brief Holds the OpenGL texture object that is backing a QRhiTexture instance. - */ - #ifndef GL_BGRA #define GL_BGRA 0x80E1 #endif @@ -172,6 +165,14 @@ QT_BEGIN_NAMESPACE #define GL_RGBA16F 0x881A #endif +#ifndef GL_R16F +#define GL_R16F 0x822D +#endif + +#ifndef GL_R32F +#define GL_R32F 0x822E +#endif + #ifndef GL_HALF_FLOAT #define GL_HALF_FLOAT 0x140B #endif @@ -268,6 +269,14 @@ QT_BEGIN_NAMESPACE #define GL_ALL_BARRIER_BITS 0xFFFFFFFF #endif +#ifndef GL_SHADER_IMAGE_ACCESS_BARRIER_BIT +#define GL_SHADER_IMAGE_ACCESS_BARRIER_BIT 0x00000020 +#endif + +#ifndef GL_SHADER_STORAGE_BARRIER_BIT +#define GL_SHADER_STORAGE_BARRIER_BIT 0x00002000 +#endif + #ifndef GL_VERTEX_PROGRAM_POINT_SIZE #define GL_VERTEX_PROGRAM_POINT_SIZE 0x8642 #endif @@ -505,6 +514,8 @@ bool QRhiGles2::create(QRhi::Flags flags) else caps.nonBaseLevelFramebufferTexture = true; + caps.texelFetch = caps.ctxMajor >= 3; // 3.0 or ES 3.0 + if (!caps.gles) { f->glEnable(GL_VERTEX_PROGRAM_POINT_SIZE); f->glEnable(GL_POINT_SPRITE); @@ -688,7 +699,6 @@ bool QRhiGles2::isTextureFormatSupported(QRhiTexture::Format format, QRhiTexture switch (format) { case QRhiTexture::D16: - Q_FALLTHROUGH(); case QRhiTexture::D32F: return caps.depthTexture; @@ -702,10 +712,13 @@ bool QRhiGles2::isTextureFormatSupported(QRhiTexture::Format format, QRhiTexture return caps.r16Format; case QRhiTexture::RGBA16F: - Q_FALLTHROUGH(); case QRhiTexture::RGBA32F: return caps.floatFormats; + case QRhiTexture::R16F: + case QRhiTexture::R32F: + return caps.floatFormats; + default: break; } @@ -756,6 +769,8 @@ bool QRhiGles2::isFeatureSupported(QRhi::Feature feature) const return !caps.gles || caps.properMapBuffer; case QRhi::ReadBackNonBaseMipLevel: return caps.nonBaseLevelFramebufferTexture; + case QRhi::TexelFetch: + return caps.texelFetch; default: Q_UNREACHABLE(); return false; @@ -772,7 +787,11 @@ int QRhiGles2::resourceLimit(QRhi::ResourceLimit limit) const case QRhi::MaxColorAttachments: return caps.maxDrawBuffers; case QRhi::FramesInFlight: - return 2; // dummy + // From our perspective. What the GL impl does internally is another + // question, but that's out of our hands and does not concern us here. + return 1; + case QRhi::MaxAsyncReadbackFrames: + return 1; default: Q_UNREACHABLE(); return 0; @@ -827,9 +846,9 @@ QRhiTexture *QRhiGles2::createTexture(QRhiTexture::Format format, const QSize &p QRhiSampler *QRhiGles2::createSampler(QRhiSampler::Filter magFilter, QRhiSampler::Filter minFilter, QRhiSampler::Filter mipmapMode, - QRhiSampler::AddressMode u, QRhiSampler::AddressMode v) + QRhiSampler::AddressMode u, QRhiSampler::AddressMode v, QRhiSampler::AddressMode w) { - return new QGles2Sampler(this, magFilter, minFilter, mipmapMode, u, v); + return new QGles2Sampler(this, magFilter, minFilter, mipmapMode, u, v, w); } QRhiTextureRenderTarget *QRhiGles2::createTextureRenderTarget(const QRhiTextureRenderTargetDescription &desc, @@ -900,15 +919,15 @@ void QRhiGles2::setShaderResources(QRhiCommandBuffer *cb, QRhiShaderResourceBind hasDynamicOffsetInSrb = true; break; case QRhiShaderResourceBinding::SampledTexture: - trackedRegisterTexture(&passResTracker, - QRHI_RES(QGles2Texture, b->u.stex.tex), - QRhiPassResourceTracker::TexSample, - QRhiPassResourceTracker::toPassTrackerTextureStage(b->stage)); + for (int elem = 0; elem < b->u.stex.count; ++elem) { + trackedRegisterTexture(&passResTracker, + QRHI_RES(QGles2Texture, b->u.stex.texSamplers[elem].tex), + QRhiPassResourceTracker::TexSample, + QRhiPassResourceTracker::toPassTrackerTextureStage(b->stage)); + } break; case QRhiShaderResourceBinding::ImageLoad: - Q_FALLTHROUGH(); case QRhiShaderResourceBinding::ImageStore: - Q_FALLTHROUGH(); case QRhiShaderResourceBinding::ImageLoadStore: { QGles2Texture *texD = QRHI_RES(QGles2Texture, b->u.simage.tex); @@ -924,9 +943,7 @@ void QRhiGles2::setShaderResources(QRhiCommandBuffer *cb, QRhiShaderResourceBind } break; case QRhiShaderResourceBinding::BufferLoad: - Q_FALLTHROUGH(); case QRhiShaderResourceBinding::BufferStore: - Q_FALLTHROUGH(); case QRhiShaderResourceBinding::BufferLoadStore: { QGles2Buffer *bufD = QRHI_RES(QGles2Buffer, b->u.sbuf.buf); @@ -1308,6 +1325,21 @@ QRhi::FrameOpResult QRhiGles2::finish() return QRhi::FrameOpSuccess; } +static bool bufferAccessIsWrite(QGles2Buffer::Access access) +{ + return access == QGles2Buffer::AccessStorageWrite + || access == QGles2Buffer::AccessStorageReadWrite + || access == QGles2Buffer::AccessUpdate; +} + +static bool textureAccessIsWrite(QGles2Texture::Access access) +{ + return access == QGles2Texture::AccessStorageWrite + || access == QGles2Texture::AccessStorageReadWrite + || access == QGles2Texture::AccessUpdate + || access == QGles2Texture::AccessFramebuffer; +} + void QRhiGles2::trackedBufferBarrier(QGles2CommandBuffer *cbD, QGles2Buffer *bufD, QGles2Buffer::Access access) { Q_ASSERT(cbD->recordingPass == QGles2CommandBuffer::NoPass); // this is for resource updates only @@ -1315,7 +1347,7 @@ void QRhiGles2::trackedBufferBarrier(QGles2CommandBuffer *cbD, QGles2Buffer *buf if (access == prevAccess) return; - if (prevAccess == QGles2Buffer::AccessStorageWrite || prevAccess == QGles2Buffer::AccessStorageReadWrite) { + if (bufferAccessIsWrite(prevAccess)) { // Generating the minimal barrier set is way too complicated to do // correctly (prevAccess is overwritten so we won't have proper // tracking across multiple passes) so setting all barrier bits will do @@ -1336,7 +1368,7 @@ void QRhiGles2::trackedImageBarrier(QGles2CommandBuffer *cbD, QGles2Texture *tex if (access == prevAccess) return; - if (prevAccess == QGles2Texture::AccessStorageWrite || prevAccess == QGles2Texture::AccessStorageReadWrite) { + if (textureAccessIsWrite(prevAccess)) { QGles2CommandBuffer::Command cmd; cmd.cmd = QGles2CommandBuffer::Command::Barrier; cmd.args.barrier.barriers = GL_ALL_BARRIER_BITS; @@ -1661,11 +1693,8 @@ static inline GLenum toGlBlendFactor(QRhiGraphicsPipeline::BlendFactor f) case QRhiGraphicsPipeline::SrcAlphaSaturate: return GL_SRC_ALPHA_SATURATE; case QRhiGraphicsPipeline::Src1Color: - Q_FALLTHROUGH(); case QRhiGraphicsPipeline::OneMinusSrc1Color: - Q_FALLTHROUGH(); case QRhiGraphicsPipeline::Src1Alpha: - Q_FALLTHROUGH(); case QRhiGraphicsPipeline::OneMinusSrc1Alpha: qWarning("Unsupported blend factor %d", f); return GL_ZERO; @@ -1785,11 +1814,6 @@ static inline GLenum toGlWrapMode(QRhiSampler::AddressMode m) return GL_CLAMP_TO_EDGE; case QRhiSampler::Mirror: return GL_MIRRORED_REPEAT; - case QRhiSampler::MirrorOnce: - Q_FALLTHROUGH(); - case QRhiSampler::Border: - qWarning("Unsupported wrap mode %d", m); - return GL_CLAMP_TO_EDGE; default: Q_UNREACHABLE(); return GL_CLAMP_TO_EDGE; @@ -2282,26 +2306,21 @@ void QRhiGles2::executeCommandBuffer(QRhiCommandBuffer *cb) // subsequent pass. for (auto it = tracker.cbeginBuffers(), itEnd = tracker.cendBuffers(); it != itEnd; ++it) { QGles2Buffer::Access accessBeforePass = QGles2Buffer::Access(it->stateAtPassBegin.access); - if (accessBeforePass == QGles2Buffer::AccessStorageWrite - || accessBeforePass == QGles2Buffer::AccessStorageReadWrite) - { + if (bufferAccessIsWrite(accessBeforePass)) barriers |= GL_ALL_BARRIER_BITS; - } } for (auto it = tracker.cbeginTextures(), itEnd = tracker.cendTextures(); it != itEnd; ++it) { QGles2Texture::Access accessBeforePass = QGles2Texture::Access(it->stateAtPassBegin.access); - if (accessBeforePass == QGles2Texture::AccessStorageWrite - || accessBeforePass == QGles2Texture::AccessStorageReadWrite) - { + if (textureAccessIsWrite(accessBeforePass)) barriers |= GL_ALL_BARRIER_BITS; - } } - if (barriers) + if (barriers && caps.compute) f->glMemoryBarrier(barriers); } break; case QGles2CommandBuffer::Command::Barrier: - f->glMemoryBarrier(cmd.args.barrier.barriers); + if (caps.compute) + f->glMemoryBarrier(cmd.args.barrier.barriers); break; default: break; @@ -2377,18 +2396,36 @@ void QRhiGles2::executeBindGraphicsPipeline(QRhiGraphicsPipeline *ps) f->glDisable(GL_STENCIL_TEST); } - if (psD->topology() == QRhiGraphicsPipeline::Lines || psD->topology() == QRhiGraphicsPipeline::LineStrip) + if (psD->m_depthBias != 0 || !qFuzzyIsNull(psD->m_slopeScaledDepthBias)) { + f->glPolygonOffset(psD->m_slopeScaledDepthBias, psD->m_depthBias); + f->glEnable(GL_POLYGON_OFFSET_FILL); + } else { + f->glDisable(GL_POLYGON_OFFSET_FILL); + } + + if (psD->m_topology == QRhiGraphicsPipeline::Lines || psD->m_topology == QRhiGraphicsPipeline::LineStrip) f->glLineWidth(psD->m_lineWidth); f->glUseProgram(psD->program); } +static inline void qrhi_std140_to_packed(float *dst, int vecSize, int elemCount, const void *src) +{ + const float *p = reinterpret_cast<const float *>(src); + for (int i = 0; i < elemCount; ++i) { + for (int j = 0; j < vecSize; ++j) + dst[vecSize * i + j] = *p++; + p += 4 - vecSize; + } +} + void QRhiGles2::bindShaderResources(QRhiGraphicsPipeline *maybeGraphicsPs, QRhiComputePipeline *maybeComputePs, QRhiShaderResourceBindings *srb, const uint *dynOfsPairs, int dynOfsCount) { QGles2ShaderResourceBindings *srbD = QRHI_RES(QGles2ShaderResourceBindings, srb); int texUnit = 0; + QVarLengthArray<float, 256> packedFloatArray; for (int i = 0, ie = srbD->m_bindings.count(); i != ie; ++i) { const QRhiShaderResourceBinding::Data *b = srbD->m_bindings.at(i).data(); @@ -2416,24 +2453,78 @@ void QRhiGles2::bindShaderResources(QRhiGraphicsPipeline *maybeGraphicsPs, QRhiC // so this should not cause unaligned reads const void *src = bufView.constData() + uniform.offset; + if (uniform.arrayDim > 0 + && uniform.type != QShaderDescription::Float + && uniform.type != QShaderDescription::Vec2 + && uniform.type != QShaderDescription::Vec3 + && uniform.type != QShaderDescription::Vec4) + { + qWarning("Uniform with buffer binding %d, buffer offset %d, type %d is an array, " + "but arrays are only supported for float, vec2, vec3, and vec4. " + "Only the first element will be set.", + uniform.binding, uniform.offset, uniform.type); + } + + // Our input is an std140 layout uniform block. See + // "Standard Uniform Block Layout" in section 7.6.2.2 of + // the OpenGL spec. This has some peculiar alignment + // requirements, which is not what glUniform* wants. Hence + // the unpacking/repacking for arrays and certain types. + switch (uniform.type) { case QShaderDescription::Float: - f->glUniform1f(uniform.glslLocation, *reinterpret_cast<const float *>(src)); + { + const int elemCount = uniform.arrayDim; + if (elemCount < 1) { + f->glUniform1f(uniform.glslLocation, *reinterpret_cast<const float *>(src)); + } else { + // input is 16 bytes per element as per std140, have to convert to packed + packedFloatArray.resize(elemCount); + qrhi_std140_to_packed(packedFloatArray.data(), 1, elemCount, src); + f->glUniform1fv(uniform.glslLocation, elemCount, packedFloatArray.constData()); + } + } break; case QShaderDescription::Vec2: - f->glUniform2fv(uniform.glslLocation, 1, reinterpret_cast<const float *>(src)); + { + const int elemCount = uniform.arrayDim; + if (elemCount < 1) { + f->glUniform2fv(uniform.glslLocation, 1, reinterpret_cast<const float *>(src)); + } else { + packedFloatArray.resize(elemCount * 2); + qrhi_std140_to_packed(packedFloatArray.data(), 2, elemCount, src); + f->glUniform2fv(uniform.glslLocation, elemCount, packedFloatArray.constData()); + } + } break; case QShaderDescription::Vec3: - f->glUniform3fv(uniform.glslLocation, 1, reinterpret_cast<const float *>(src)); + { + const int elemCount = uniform.arrayDim; + if (elemCount < 1) { + f->glUniform3fv(uniform.glslLocation, 1, reinterpret_cast<const float *>(src)); + } else { + packedFloatArray.resize(elemCount * 3); + qrhi_std140_to_packed(packedFloatArray.data(), 3, elemCount, src); + f->glUniform3fv(uniform.glslLocation, elemCount, packedFloatArray.constData()); + } + } break; case QShaderDescription::Vec4: - f->glUniform4fv(uniform.glslLocation, 1, reinterpret_cast<const float *>(src)); + f->glUniform4fv(uniform.glslLocation, qMax(1, uniform.arrayDim), reinterpret_cast<const float *>(src)); break; case QShaderDescription::Mat2: f->glUniformMatrix2fv(uniform.glslLocation, 1, GL_FALSE, reinterpret_cast<const float *>(src)); break; case QShaderDescription::Mat3: - f->glUniformMatrix3fv(uniform.glslLocation, 1, GL_FALSE, reinterpret_cast<const float *>(src)); + { + // 4 floats per column (or row, if row-major) + float mat[9]; + const float *srcMat = reinterpret_cast<const float *>(src); + memcpy(mat, srcMat, 3 * sizeof(float)); + memcpy(mat + 3, srcMat + 4, 3 * sizeof(float)); + memcpy(mat + 6, srcMat + 8, 3 * sizeof(float)); + f->glUniformMatrix3fv(uniform.glslLocation, 1, GL_FALSE, mat); + } break; case QShaderDescription::Mat4: f->glUniformMatrix4fv(uniform.glslLocation, 1, GL_FALSE, reinterpret_cast<const float *>(src)); @@ -2474,8 +2565,9 @@ void QRhiGles2::bindShaderResources(QRhiGraphicsPipeline *maybeGraphicsPs, QRhiC case QShaderDescription::Bool4: f->glUniform4iv(uniform.glslLocation, 1, reinterpret_cast<const qint32 *>(src)); break; - // ### more types default: + qWarning("Uniform with buffer binding %d, buffer offset %d has unsupported type %d", + uniform.binding, uniform.offset, uniform.type); break; } } @@ -2484,44 +2576,43 @@ void QRhiGles2::bindShaderResources(QRhiGraphicsPipeline *maybeGraphicsPs, QRhiC break; case QRhiShaderResourceBinding::SampledTexture: { - QGles2Texture *texD = QRHI_RES(QGles2Texture, b->u.stex.tex); - QGles2Sampler *samplerD = QRHI_RES(QGles2Sampler, b->u.stex.sampler); QVector<QGles2SamplerDescription> &samplers(maybeGraphicsPs ? QRHI_RES(QGles2GraphicsPipeline, maybeGraphicsPs)->samplers : QRHI_RES(QGles2ComputePipeline, maybeComputePs)->samplers); - - for (QGles2SamplerDescription &sampler : samplers) { - if (sampler.binding == b->binding) { - f->glActiveTexture(GL_TEXTURE0 + uint(texUnit)); - f->glBindTexture(texD->target, texD->texture); - - if (texD->samplerState != samplerD->d) { - f->glTexParameteri(texD->target, GL_TEXTURE_MIN_FILTER, GLint(samplerD->d.glminfilter)); - f->glTexParameteri(texD->target, GL_TEXTURE_MAG_FILTER, GLint(samplerD->d.glmagfilter)); - f->glTexParameteri(texD->target, GL_TEXTURE_WRAP_S, GLint(samplerD->d.glwraps)); - f->glTexParameteri(texD->target, GL_TEXTURE_WRAP_T, GLint(samplerD->d.glwrapt)); - // 3D textures not supported by GLES 2.0 or by us atm... - //f->glTexParameteri(texD->target, GL_TEXTURE_WRAP_R, samplerD->d.glwrapr); - if (caps.textureCompareMode) { - if (samplerD->d.gltexcomparefunc != GL_NEVER) { - f->glTexParameteri(texD->target, GL_TEXTURE_COMPARE_MODE, GL_COMPARE_REF_TO_TEXTURE); - f->glTexParameteri(texD->target, GL_TEXTURE_COMPARE_FUNC, GLint(samplerD->d.gltexcomparefunc)); - } else { - f->glTexParameteri(texD->target, GL_TEXTURE_COMPARE_MODE, GL_NONE); + for (int elem = 0; elem < b->u.stex.count; ++elem) { + QGles2Texture *texD = QRHI_RES(QGles2Texture, b->u.stex.texSamplers[elem].tex); + QGles2Sampler *samplerD = QRHI_RES(QGles2Sampler, b->u.stex.texSamplers[elem].sampler); + for (QGles2SamplerDescription &sampler : samplers) { + if (sampler.binding == b->binding) { + f->glActiveTexture(GL_TEXTURE0 + uint(texUnit)); + f->glBindTexture(texD->target, texD->texture); + + if (texD->samplerState != samplerD->d) { + f->glTexParameteri(texD->target, GL_TEXTURE_MIN_FILTER, GLint(samplerD->d.glminfilter)); + f->glTexParameteri(texD->target, GL_TEXTURE_MAG_FILTER, GLint(samplerD->d.glmagfilter)); + f->glTexParameteri(texD->target, GL_TEXTURE_WRAP_S, GLint(samplerD->d.glwraps)); + f->glTexParameteri(texD->target, GL_TEXTURE_WRAP_T, GLint(samplerD->d.glwrapt)); + // 3D textures not supported by GLES 2.0 or by us atm... + //f->glTexParameteri(texD->target, GL_TEXTURE_WRAP_R, samplerD->d.glwrapr); + if (caps.textureCompareMode) { + if (samplerD->d.gltexcomparefunc != GL_NEVER) { + f->glTexParameteri(texD->target, GL_TEXTURE_COMPARE_MODE, GL_COMPARE_REF_TO_TEXTURE); + f->glTexParameteri(texD->target, GL_TEXTURE_COMPARE_FUNC, GLint(samplerD->d.gltexcomparefunc)); + } else { + f->glTexParameteri(texD->target, GL_TEXTURE_COMPARE_MODE, GL_NONE); + } } + texD->samplerState = samplerD->d; } - texD->samplerState = samplerD->d; - } - f->glUniform1i(sampler.glslLocation, texUnit); - ++texUnit; + f->glUniform1i(sampler.glslLocation + elem, texUnit); + ++texUnit; + } } } } break; case QRhiShaderResourceBinding::ImageLoad: - Q_FALLTHROUGH(); case QRhiShaderResourceBinding::ImageStore: - Q_FALLTHROUGH(); case QRhiShaderResourceBinding::ImageLoadStore: { QGles2Texture *texD = QRHI_RES(QGles2Texture, b->u.simage.tex); @@ -2537,9 +2628,7 @@ void QRhiGles2::bindShaderResources(QRhiGraphicsPipeline *maybeGraphicsPs, QRhiC } break; case QRhiShaderResourceBinding::BufferLoad: - Q_FALLTHROUGH(); case QRhiShaderResourceBinding::BufferStore: - Q_FALLTHROUGH(); case QRhiShaderResourceBinding::BufferLoadStore: { QGles2Buffer *bufD = QRHI_RES(QGles2Buffer, b->u.sbuf.buf); @@ -2738,6 +2827,8 @@ void QRhiGles2::beginComputePass(QRhiCommandBuffer *cb, QRhiResourceUpdateBatch cbD->recordingPass = QGles2CommandBuffer::ComputePass; cbD->resetCachedState(); + + cbD->computePassState.reset(); } void QRhiGles2::endComputePass(QRhiCommandBuffer *cb, QRhiResourceUpdateBatch *resourceUpdates) @@ -2770,11 +2861,96 @@ void QRhiGles2::setComputePipeline(QRhiCommandBuffer *cb, QRhiComputePipeline *p } } +template<typename T> +inline void qrhigl_accumulateComputeResource(T *writtenResources, QRhiResource *resource, + QRhiShaderResourceBinding::Type bindingType, + int loadTypeVal, int storeTypeVal, int loadStoreTypeVal) +{ + int access = 0; + if (bindingType == loadTypeVal) { + access = QGles2CommandBuffer::ComputePassState::Read; + } else { + access = QGles2CommandBuffer::ComputePassState::Write; + if (bindingType == loadStoreTypeVal) + access |= QGles2CommandBuffer::ComputePassState::Read; + } + auto it = writtenResources->find(resource); + if (it != writtenResources->end()) + it->first |= access; + else if (bindingType == storeTypeVal || bindingType == loadStoreTypeVal) + writtenResources->insert(resource, { access, true }); +} + void QRhiGles2::dispatch(QRhiCommandBuffer *cb, int x, int y, int z) { QGles2CommandBuffer *cbD = QRHI_RES(QGles2CommandBuffer, cb); Q_ASSERT(cbD->recordingPass == QGles2CommandBuffer::ComputePass); + if (cbD->currentComputeSrb) { + GLbitfield barriers = 0; + + // The key in the writtenResources map indicates that the resource was + // written in a previous dispatch, whereas the value accumulates the + // access mask in the current one. + for (auto &accessAndIsNewFlag : cbD->computePassState.writtenResources) + accessAndIsNewFlag = { 0, false }; + + QGles2ShaderResourceBindings *srbD = QRHI_RES(QGles2ShaderResourceBindings, cbD->currentComputeSrb); + const int bindingCount = srbD->m_bindings.count(); + for (int i = 0; i < bindingCount; ++i) { + const QRhiShaderResourceBinding::Data *b = srbD->m_bindings.at(i).data(); + switch (b->type) { + case QRhiShaderResourceBinding::ImageLoad: + case QRhiShaderResourceBinding::ImageStore: + case QRhiShaderResourceBinding::ImageLoadStore: + qrhigl_accumulateComputeResource(&cbD->computePassState.writtenResources, + b->u.simage.tex, + b->type, + QRhiShaderResourceBinding::ImageLoad, + QRhiShaderResourceBinding::ImageStore, + QRhiShaderResourceBinding::ImageLoadStore); + break; + case QRhiShaderResourceBinding::BufferLoad: + case QRhiShaderResourceBinding::BufferStore: + case QRhiShaderResourceBinding::BufferLoadStore: + qrhigl_accumulateComputeResource(&cbD->computePassState.writtenResources, + b->u.sbuf.buf, + b->type, + QRhiShaderResourceBinding::BufferLoad, + QRhiShaderResourceBinding::BufferStore, + QRhiShaderResourceBinding::BufferLoadStore); + break; + default: + break; + } + } + + for (auto it = cbD->computePassState.writtenResources.begin(); it != cbD->computePassState.writtenResources.end(); ) { + const int accessInThisDispatch = it->first; + const bool isNewInThisDispatch = it->second; + if (accessInThisDispatch && !isNewInThisDispatch) { + if (it.key()->resourceType() == QRhiResource::Texture) + barriers |= GL_SHADER_IMAGE_ACCESS_BARRIER_BIT; + else + barriers |= GL_SHADER_STORAGE_BARRIER_BIT; + } + // Anything that was previously written, but is only read now, can be + // removed from the written list (because that previous write got a + // corresponding barrier now). + if (accessInThisDispatch == QGles2CommandBuffer::ComputePassState::Read) + it = cbD->computePassState.writtenResources.erase(it); + else + ++it; + } + + if (barriers) { + QGles2CommandBuffer::Command cmd; + cmd.cmd = QGles2CommandBuffer::Command::Barrier; + cmd.args.barrier.barriers = barriers; + cbD->commands.append(cmd); + } + } + QGles2CommandBuffer::Command cmd; cmd.cmd = QGles2CommandBuffer::Command::Dispatch; cmd.args.dispatch.x = GLuint(x); @@ -2924,21 +3100,65 @@ bool QRhiGles2::linkProgram(GLuint program) return true; } -void QRhiGles2::gatherUniforms(GLuint program, const QShaderDescription::UniformBlock &ub, +void QRhiGles2::registerUniformIfActive(const QShaderDescription::BlockVariable &var, + const QByteArray &namePrefix, + int binding, + int baseOffset, + GLuint program, + QVector<QGles2UniformDescription> *dst) +{ + if (var.type == QShaderDescription::Struct) { + qWarning("Nested structs are not supported at the moment. '%s' ignored.", + qPrintable(var.name)); + return; + } + QGles2UniformDescription uniform; + uniform.type = var.type; + const QByteArray name = namePrefix + var.name.toUtf8(); + uniform.glslLocation = f->glGetUniformLocation(program, name.constData()); + if (uniform.glslLocation >= 0) { + if (var.arrayDims.count() > 1) { + qWarning("Array '%s' has more than one dimension. This is not supported.", + qPrintable(var.name)); + return; + } + uniform.binding = binding; + uniform.offset = uint(baseOffset + var.offset); + uniform.size = var.size; + uniform.arrayDim = var.arrayDims.isEmpty() ? 0 : var.arrayDims.first(); + dst->append(uniform); + } +} + +void QRhiGles2::gatherUniforms(GLuint program, + const QShaderDescription::UniformBlock &ub, QVector<QGles2UniformDescription> *dst) { - const QByteArray prefix = ub.structName.toUtf8() + '.'; + QByteArray prefix = ub.structName.toUtf8() + '.'; for (const QShaderDescription::BlockVariable &blockMember : ub.members) { - // ### no array support for now - QGles2UniformDescription uniform; - uniform.type = blockMember.type; - const QByteArray name = prefix + blockMember.name.toUtf8(); - uniform.glslLocation = f->glGetUniformLocation(program, name.constData()); - if (uniform.glslLocation >= 0) { - uniform.binding = ub.binding; - uniform.offset = uint(blockMember.offset); - uniform.size = blockMember.size; - dst->append(uniform); + if (blockMember.type == QShaderDescription::Struct) { + prefix += blockMember.name.toUtf8(); + const int baseOffset = blockMember.offset; + if (blockMember.arrayDims.isEmpty()) { + for (const QShaderDescription::BlockVariable &structMember : blockMember.structMembers) + registerUniformIfActive(structMember, prefix, ub.binding, baseOffset, program, dst); + } else { + if (blockMember.arrayDims.count() > 1) { + qWarning("Array of struct '%s' has more than one dimension. Only the first dimension is used.", + qPrintable(blockMember.name)); + } + const int dim = blockMember.arrayDims.first(); + const int elemSize = blockMember.size / dim; + int elemOffset = baseOffset; + for (int di = 0; di < dim; ++di) { + const QByteArray arrayPrefix = prefix + '[' + QByteArray::number(di) + ']' + '.'; + for (const QShaderDescription::BlockVariable &structMember : blockMember.structMembers) + registerUniformIfActive(structMember, arrayPrefix, ub.binding, elemOffset, program, dst); + elemOffset += elemSize; + } + } + } else { + registerUniformIfActive(blockMember, prefix, ub.binding, 0, program, dst); } } } @@ -3086,6 +3306,14 @@ bool QGles2Buffer::build() return true; } +QRhiBuffer::NativeBuffer QGles2Buffer::nativeBuffer() +{ + if (m_usage.testFlag(QRhiBuffer::UniformBuffer)) + return { {}, 0 }; + + return { { &buffer }, 1 }; +} + QGles2RenderBuffer::QGles2RenderBuffer(QRhiImplementation *rhi, Type type, const QSize &pixelSize, int sampleCount, QRhiRenderBuffer::Flags flags) : QRhiRenderBuffer(rhi, type, pixelSize, sampleCount, flags) @@ -3219,7 +3447,6 @@ void QGles2Texture::release() texture = 0; specified = false; - nativeHandlesStruct.texture = 0; QRHI_RES_RHI(QRhiGles2); if (owns) @@ -3300,6 +3527,18 @@ bool QGles2Texture::prepareBuild(QSize *adjustedSize) glformat = GL_RGBA; gltype = GL_FLOAT; break; + case QRhiTexture::R16F: + glintformat = GL_R16F; + glsizedintformat = glintformat; + glformat = GL_RED; + gltype = GL_HALF_FLOAT; + break; + case QRhiTexture::R32F: + glintformat = GL_R32F; + glsizedintformat = glintformat; + glformat = GL_RED; + gltype = GL_FLOAT; + break; case QRhiTexture::D16: glintformat = GL_DEPTH_COMPONENT16; glsizedintformat = glintformat; @@ -3378,23 +3617,22 @@ bool QGles2Texture::build() QRHI_PROF_F(newTexture(this, true, mipLevelCount, isCube ? 6 : 1, 1)); owns = true; - nativeHandlesStruct.texture = texture; generation += 1; rhiD->registerResource(this); return true; } -bool QGles2Texture::buildFrom(const QRhiNativeHandles *src) +bool QGles2Texture::buildFrom(QRhiTexture::NativeTexture src) { - const QRhiGles2TextureNativeHandles *h = static_cast<const QRhiGles2TextureNativeHandles *>(src); - if (!h || !h->texture) + const uint *textureId = static_cast<const uint *>(src.object); + if (!textureId || !*textureId) return false; if (!prepareBuild()) return false; - texture = h->texture; + texture = *textureId; specified = true; QRHI_RES_RHI(QRhiGles2); @@ -3402,21 +3640,20 @@ bool QGles2Texture::buildFrom(const QRhiNativeHandles *src) QRHI_PROF_F(newTexture(this, false, mipLevelCount, m_flags.testFlag(CubeMap) ? 6 : 1, 1)); owns = false; - nativeHandlesStruct.texture = texture; generation += 1; rhiD->registerResource(this); return true; } -const QRhiNativeHandles *QGles2Texture::nativeHandles() +QRhiTexture::NativeTexture QGles2Texture::nativeTexture() { - return &nativeHandlesStruct; + return {&texture, 0}; } QGles2Sampler::QGles2Sampler(QRhiImplementation *rhi, Filter magFilter, Filter minFilter, Filter mipmapMode, - AddressMode u, AddressMode v) - : QRhiSampler(rhi, magFilter, minFilter, mipmapMode, u, v) + AddressMode u, AddressMode v, AddressMode w) + : QRhiSampler(rhi, magFilter, minFilter, mipmapMode, u, v, w) { } @@ -3459,6 +3696,12 @@ void QGles2RenderPassDescriptor::release() // nothing to do here } +bool QGles2RenderPassDescriptor::isCompatible(const QRhiRenderPassDescriptor *other) const +{ + Q_UNUSED(other); + return true; +} + QGles2ReferenceRenderTarget::QGles2ReferenceRenderTarget(QRhiImplementation *rhi) : QRhiRenderTarget(rhi), d(rhi) |