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++ // Copyright (C) 2014 Klaralvdalens Datakonsult AB (KDAB).
++ // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
++
++ #include "graphicshelperes2_p.h"
++ #include <private/attachmentpack_p.h>
++ #include <qgraphicsutils_p.h>
++ #include <renderbuffer_p.h>
++ #include <logging_p.h>
++ #include <QtGui/private/qopenglextensions_p.h>
++
++
++ QT_BEGIN_NAMESPACE
++
++ // ES 3.0+
++ #ifndef GL_SAMPLER_3D
++ #define GL_SAMPLER_3D 0x8B5F
++ #endif
++ #ifndef GL_SAMPLER_2D_SHADOW
++ #define GL_SAMPLER_2D_SHADOW 0x8B62
++ #endif
++ #ifndef GL_SAMPLER_CUBE_SHADOW
++ #define GL_SAMPLER_CUBE_SHADOW 0x8DC5
++ #endif
++ #ifndef GL_SAMPLER_2D_ARRAY
++ #define GL_SAMPLER_2D_ARRAY 0x8DC1
++ #endif
++ #ifndef GL_SAMPLER_2D_ARRAY_SHADOW
++ #define GL_SAMPLER_2D_ARRAY_SHADOW 0x8DC4
++ #endif
++
++ namespace Qt3DRender {
++ namespace Render {
++ namespace OpenGL {
++
++ GraphicsHelperES2::GraphicsHelperES2()
++ : m_funcs(0)
++ , m_supportFramebufferBlit(false)
++ {
++ }
++
++ GraphicsHelperES2::~GraphicsHelperES2()
++ {
++ }
++
++ void GraphicsHelperES2::initializeHelper(QOpenGLContext *context,
++ QAbstractOpenGLFunctions *)
++ {
++ Q_ASSERT(context);
++ m_funcs = context->functions();
++ Q_ASSERT(m_funcs);
++ m_ext.reset(new QOpenGLExtensions(context));
++ if (m_ext->hasOpenGLExtension(QOpenGLExtensions::FramebufferBlit))
++ m_supportFramebufferBlit = true;
++ }
++
++ void GraphicsHelperES2::drawElementsInstancedBaseVertexBaseInstance(GLenum primitiveType,
++ GLsizei primitiveCount,
++ GLint indexType,
++ void *indices,
++ GLsizei instances,
++ GLint baseVertex,
++ GLint baseInstance)
++ {
++ if (baseInstance != 0)
++ qWarning() << "glDrawElementsInstancedBaseVertexBaseInstance is not supported with OpenGL ES 2";
++
++ if (baseVertex != 0)
++ qWarning() << "glDrawElementsInstancedBaseVertex is not supported with OpenGL ES 2";
++
++ for (GLint i = 0; i < instances; i++)
++ drawElements(primitiveType,
++ primitiveCount,
++ indexType,
++ indices);
++ }
++
++ void GraphicsHelperES2::drawArraysInstanced(GLenum primitiveType,
++ GLint first,
++ GLsizei count,
++ GLsizei instances)
++ {
++ for (GLint i = 0; i < instances; i++)
++ drawArrays(primitiveType,
++ first,
++ count);
++ }
++
++ void GraphicsHelperES2::drawArraysInstancedBaseInstance(GLenum primitiveType, GLint first, GLsizei count, GLsizei instances, GLsizei baseInstance)
++ {
++ if (baseInstance != 0)
++ qWarning() << "glDrawArraysInstancedBaseInstance is not supported with OpenGL ES 2";
++ for (GLint i = 0; i < instances; i++)
++ drawArrays(primitiveType,
++ first,
++ count);
++ }
++
++ void GraphicsHelperES2::drawElements(GLenum primitiveType,
++ GLsizei primitiveCount,
++ GLint indexType,
++ void *indices,
++ GLint baseVertex)
++ {
++ if (baseVertex != 0)
++ qWarning() << "glDrawElementsBaseVertex is not supported with OpenGL ES 2";
++ QOpenGLExtensions *xfuncs = static_cast<QOpenGLExtensions *>(m_funcs);
++ if (indexType == GL_UNSIGNED_INT && !xfuncs->hasOpenGLExtension(QOpenGLExtensions::ElementIndexUint)) {
++ static bool warnShown = false;
++ if (!warnShown) {
++ warnShown = true;
++ qWarning("GL_UNSIGNED_INT index type not supported on this system, skipping draw call.");
++ }
++ return;
++ }
++ m_funcs->glDrawElements(primitiveType,
++ primitiveCount,
++ indexType,
++ indices);
++ }
++
++ void GraphicsHelperES2::drawArrays(GLenum primitiveType,
++ GLint first,
++ GLsizei count)
++ {
++ m_funcs->glDrawArrays(primitiveType,
++ first,
++ count);
++ }
++
++ void GraphicsHelperES2::drawElementsIndirect(GLenum, GLenum, void *)
++ {
++ static bool showWarning = true;
++ if (!showWarning)
++ return;
++ showWarning = false;
++ qWarning() << "Indirect Drawing is not supported with OpenGL ES 2";
++ }
++
++ void GraphicsHelperES2::drawArraysIndirect(GLenum , void *)
++ {
++ static bool showWarning = true;
++ if (!showWarning)
++ return;
++ showWarning = false;
++ qWarning() << "Indirect Drawing is not supported with OpenGL ES 2";
++ }
++
++ void GraphicsHelperES2::setVerticesPerPatch(GLint verticesPerPatch)
++ {
++ Q_UNUSED(verticesPerPatch);
++ static bool showWarning = true;
++ if (!showWarning)
++ return;
++ showWarning = false;
++ qWarning() << "Tessellation not supported with OpenGL ES 2";
++ }
++
++ void GraphicsHelperES2::useProgram(GLuint programId)
++ {
++ m_funcs->glUseProgram(programId);
++ }
++
++ std::vector<ShaderUniform> GraphicsHelperES2::programUniformsAndLocations(GLuint programId)
++ {
++ std::vector<ShaderUniform> uniforms;
++
++ GLint nbrActiveUniforms = 0;
++ m_funcs->glGetProgramiv(programId, GL_ACTIVE_UNIFORMS, &nbrActiveUniforms);
++ uniforms.reserve(nbrActiveUniforms);
++ char uniformName[256];
++ for (GLint i = 0; i < nbrActiveUniforms; i++) {
++ ShaderUniform uniform;
++ GLsizei uniformNameLength = 0;
++ // Size is 1 for scalar and more for struct or arrays
++ // Type is the GL Type
++ m_funcs->glGetActiveUniform(programId, i, sizeof(uniformName) - 1, &uniformNameLength,
++ &uniform.m_size, &uniform.m_type, uniformName);
++ uniformName[sizeof(uniformName) - 1] = '\0';
++ uniform.m_location = m_funcs->glGetUniformLocation(programId, uniformName);
++ uniform.m_name = QString::fromUtf8(uniformName, uniformNameLength);
++ // Work around for uniform array names that aren't returned with [0] by some drivers
++ if (uniform.m_size > 1 && !uniform.m_name.endsWith(QLatin1String("[0]")))
++ uniform.m_name.append(QLatin1String("[0]"));
++ uniform.m_rawByteSize = uniformByteSize(uniform);
++ uniforms.push_back(uniform);
++ }
++ return uniforms;
++ }
++
++ std::vector<ShaderAttribute> GraphicsHelperES2::programAttributesAndLocations(GLuint programId)
++ {
++ std::vector<ShaderAttribute> attributes;
++ GLint nbrActiveAttributes = 0;
++ m_funcs->glGetProgramiv(programId, GL_ACTIVE_ATTRIBUTES, &nbrActiveAttributes);
++ attributes.reserve(nbrActiveAttributes);
++ char attributeName[256];
++ for (GLint i = 0; i < nbrActiveAttributes; i++) {
++ ShaderAttribute attribute;
++ GLsizei attributeNameLength = 0;
++ // Size is 1 for scalar and more for struct or arrays
++ // Type is the GL Type
++ m_funcs->glGetActiveAttrib(programId, i, sizeof(attributeName) - 1, &attributeNameLength,
++ &attribute.m_size, &attribute.m_type, attributeName);
++ attributeName[sizeof(attributeName) - 1] = '\0';
++ attribute.m_location = m_funcs->glGetAttribLocation(programId, attributeName);
++ attribute.m_name = QString::fromUtf8(attributeName, attributeNameLength);
++ attributes.push_back(attribute);
++ }
++ return attributes;
++ }
++
++ std::vector<ShaderUniformBlock> GraphicsHelperES2::programUniformBlocks(GLuint programId)
++ {
++ Q_UNUSED(programId);
++ static bool showWarning = true;
++ if (!showWarning)
++ return {};
++ showWarning = false;
++ qWarning() << "UBO are not supported by OpenGL ES 2.0 (since OpenGL ES 3.0)";
++ return {};
++ }
++
++ std::vector<ShaderStorageBlock> GraphicsHelperES2::programShaderStorageBlocks(GLuint programId)
++ {
++ Q_UNUSED(programId);
++ static bool showWarning = true;
++ if (!showWarning)
++ return {};
++ showWarning = false;
++ qWarning() << "SSBO are not supported by OpenGL ES 2.0 (since OpenGL ES 3.1)";
++ return {};
++ }
++
++ void GraphicsHelperES2::vertexAttribDivisor(GLuint index, GLuint divisor)
++ {
++ Q_UNUSED(index);
++ Q_UNUSED(divisor);
++ }
++
++ void GraphicsHelperES2::vertexAttributePointer(GLenum shaderDataType,
++ GLuint index,
++ GLint size,
++ GLenum type,
++ GLboolean normalized,
++ GLsizei stride,
++ const GLvoid *pointer)
++ {
++ switch (shaderDataType) {
++ case GL_FLOAT:
++ case GL_FLOAT_VEC2:
++ case GL_FLOAT_VEC3:
++ case GL_FLOAT_VEC4:
++ case GL_FLOAT_MAT2:
++ case GL_FLOAT_MAT3:
++ case GL_FLOAT_MAT4:
++ m_funcs->glVertexAttribPointer(index, size, type, normalized, stride, pointer);
++ break;
++
++ default:
++ qCWarning(Rendering) << "vertexAttribPointer: Unhandled type";
++ Q_UNREACHABLE();
++ }
++ }
++
++ void GraphicsHelperES2::readBuffer(GLenum mode)
++ {
++ Q_UNUSED(mode);
++ static bool showWarning = true;
++ if (!showWarning)
++ return;
++ showWarning = false;
++ qWarning() << "glReadBuffer not supported by OpenGL ES 2.0 (since OpenGL ES 3.0)";
++ }
++
++ void GraphicsHelperES2::drawBuffer(GLenum mode)
++ {
++ Q_UNUSED(mode);
++ static bool showWarning = true;
++ if (!showWarning)
++ return;
++ showWarning = false;
++ qWarning() << "glDrawBuffer is not supported with OpenGL ES 2";
++ }
++
++ void *GraphicsHelperES2::fenceSync()
++ {
++ qWarning() << "Fences are not supported by OpenGL ES 2.0 (since OpenGL ES 3.0)";
++ return nullptr;
++ }
++
++ void GraphicsHelperES2::clientWaitSync(void *, GLuint64 )
++ {
++ qWarning() << "Fences are not supported by OpenGL ES 2.0 (since OpenGL ES 3.0)";
++ }
++
++ void GraphicsHelperES2::waitSync(void *)
++ {
++ qWarning() << "Fences are not supported by OpenGL ES 2.0 (since OpenGL ES 3.0)";
++ }
++
++ bool GraphicsHelperES2::wasSyncSignaled(void *)
++ {
++ qWarning() << "Fences are not supported by OpenGL ES 2.0 (since OpenGL ES 3.0)";
++ return false;
++ }
++
++ void GraphicsHelperES2::deleteSync(void *)
++ {
++ qWarning() << "Fences are not supported by OpenGL ES 2.0 (since OpenGL ES 3.0)";
++ }
++
++ void GraphicsHelperES2::rasterMode(GLenum faceMode, GLenum rasterMode)
++ {
++ Q_UNUSED(faceMode);
++ Q_UNUSED(rasterMode);
++ qWarning() << "glPolyonMode is not supported with OpenGL ES";
++ }
++
++ void GraphicsHelperES2::blendEquation(GLenum mode)
++ {
++ m_funcs->glBlendEquation(mode);
++ }
++
++ void GraphicsHelperES2::blendFunci(GLuint buf, GLenum sfactor, GLenum dfactor)
++ {
++ Q_UNUSED(buf);
++ Q_UNUSED(sfactor);
++ Q_UNUSED(dfactor);
++
++ static bool showWarning = true;
++ if (!showWarning)
++ return;
++ showWarning = false;
++ qWarning() << "glBlendFunci() not supported by OpenGL ES 2.0";
++ }
++
++ void GraphicsHelperES2::blendFuncSeparatei(GLuint buf, GLenum sRGB, GLenum dRGB, GLenum sAlpha, GLenum dAlpha)
++ {
++ Q_UNUSED(buf);
++ Q_UNUSED(sRGB);
++ Q_UNUSED(dRGB);
++ Q_UNUSED(sAlpha);
++ Q_UNUSED(dAlpha);
++
++ static bool showWarning = true;
++ if (!showWarning)
++ return;
++ showWarning = false;
++ qWarning() << "glBlendFuncSeparatei() not supported by OpenGL ES 2.0";
++ }
++
++ void GraphicsHelperES2::alphaTest(GLenum, GLenum)
++ {
++ qCWarning(Rendering) << Q_FUNC_INFO << "AlphaTest not available with OpenGL ES 2.0";
++ }
++
++ void GraphicsHelperES2::depthTest(GLenum mode)
++ {
++ m_funcs->glEnable(GL_DEPTH_TEST);
++ m_funcs->glDepthFunc(mode);
++ }
++
++ void GraphicsHelperES2::depthMask(GLenum mode)
++ {
++ m_funcs->glDepthMask(mode);
++ }
++
++ void GraphicsHelperES2::depthRange(GLdouble nearValue, GLdouble farValue)
++ {
++ m_funcs->glDepthRangef(static_cast<float>(nearValue), static_cast<float>(farValue));
++ }
++
++ void GraphicsHelperES2::frontFace(GLenum mode)
++ {
++ m_funcs->glFrontFace(mode);
++ }
++
++ void GraphicsHelperES2::setMSAAEnabled(bool enabled)
++ {
++ Q_UNUSED(enabled);
++ static bool showWarning = true;
++ if (!showWarning)
++ return;
++ if (!enabled) {
++ showWarning = false;
++ qWarning() << "MSAA cannot be disabled with OpenGL ES 2.0";
++ }
++ }
++
++ void GraphicsHelperES2::setAlphaCoverageEnabled(bool enabled)
++ {
++ enabled ? m_funcs->glEnable(GL_SAMPLE_ALPHA_TO_COVERAGE)
++ : m_funcs->glDisable(GL_SAMPLE_ALPHA_TO_COVERAGE);
++ }
++
++ GLuint GraphicsHelperES2::createFrameBufferObject()
++ {
++ GLuint id;
++ m_funcs->glGenFramebuffers(1, &id);
++ return id;
++ }
++
++ void GraphicsHelperES2::releaseFrameBufferObject(GLuint frameBufferId)
++ {
++ m_funcs->glDeleteFramebuffers(1, &frameBufferId);
++ }
++
++ void GraphicsHelperES2::bindFrameBufferObject(GLuint frameBufferId, FBOBindMode mode)
++ {
++ Q_UNUSED(mode);
++ // For ES2 the spec states for target: The symbolic constant must be GL_FRAMEBUFFER
++ // so mode is ignored and is always set to GL_FRAMEBUFFER
++ m_funcs->glBindFramebuffer(GL_FRAMEBUFFER, frameBufferId);
++ }
++
++ void GraphicsHelperES2::bindImageTexture(GLuint imageUnit, GLuint texture,
++ GLint mipLevel, GLboolean layered,
++ GLint layer, GLenum access, GLenum format)
++ {
++ Q_UNUSED(imageUnit);
++ Q_UNUSED(texture);
++ Q_UNUSED(mipLevel);
++ Q_UNUSED(layered);
++ Q_UNUSED(layer);
++ Q_UNUSED(access);
++ Q_UNUSED(format);
++ qWarning() << "Shader Images are not supported by ES 2.0 (since ES 3.1)";
++
++ }
++
++ GLuint GraphicsHelperES2::boundFrameBufferObject()
++ {
++ GLint id = 0;
++ m_funcs->glGetIntegerv(GL_FRAMEBUFFER_BINDING, &id);
++ return id;
++ }
++
++ bool GraphicsHelperES2::checkFrameBufferComplete()
++ {
++ return (m_funcs->glCheckFramebufferStatus(GL_FRAMEBUFFER) == GL_FRAMEBUFFER_COMPLETE);
++ }
++
++ bool GraphicsHelperES2::frameBufferNeedsRenderBuffer(const Attachment &attachment)
++ {
++ // Use a renderbuffer for depth or stencil attachments since this is
++ // problematic before GLES 3.2. Keep using textures for everything else.
++ // For ES2 individual Depth and Stencil buffers need to be an option because
++ // DepthStencil is an extension.
++ return attachment.m_point == QRenderTargetOutput::DepthStencil ||
++ attachment.m_point == QRenderTargetOutput::Depth ||
++ attachment.m_point == QRenderTargetOutput::Stencil;
++ }
++
++ void GraphicsHelperES2::bindFrameBufferAttachment(QOpenGLTexture *texture, const Attachment &attachment)
++ {
++ GLenum attr = GL_COLOR_ATTACHMENT0;
++
++ if (attachment.m_point == QRenderTargetOutput::Color0)
++ attr = GL_COLOR_ATTACHMENT0;
++ else if (attachment.m_point == QRenderTargetOutput::Depth)
++ attr = GL_DEPTH_ATTACHMENT;
++ else if (attachment.m_point == QRenderTargetOutput::Stencil)
++ attr = GL_STENCIL_ATTACHMENT;
++ else
++ qCritical() << "Unsupported FBO attachment OpenGL ES 2.0";
++
++ const QOpenGLTexture::Target target = texture->target();
++
++ if (target == QOpenGLTexture::TargetCubeMap && attachment.m_face == QAbstractTexture::AllFaces) {
++ qWarning() << "OpenGL ES 2.0 doesn't handle attaching all the faces of a cube map texture at once to an FBO";
++ return;
++ }
++
++ texture->bind();
++ if (target == QOpenGLTexture::Target2D)
++ m_funcs->glFramebufferTexture2D(GL_FRAMEBUFFER, attr, target, texture->textureId(), attachment.m_mipLevel);
++ else if (target == QOpenGLTexture::TargetCubeMap)
++ m_funcs->glFramebufferTexture2D(GL_FRAMEBUFFER, attr, attachment.m_face, texture->textureId(), attachment.m_mipLevel);
++ else
++ qCritical() << "Unsupported Texture FBO attachment format";
++ texture->release();
++ }
++
++ void GraphicsHelperES2::bindFrameBufferAttachment(RenderBuffer *renderBuffer, const Attachment &attachment)
++ {
++ if (attachment.m_point != QRenderTargetOutput::DepthStencil &&
++ attachment.m_point != QRenderTargetOutput::Depth &&
++ attachment.m_point != QRenderTargetOutput::Stencil) {
++ qCritical() << "Renderbuffers only supported for combined depth-stencil, depth, or stencil, but got attachment point"
++ << attachment.m_point;
++ return;
++ }
++
++ renderBuffer->bind();
++ if (attachment.m_point == QRenderTargetOutput::DepthStencil ||
++ attachment.m_point == QRenderTargetOutput::Depth)
++ m_funcs->glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, GL_RENDERBUFFER, renderBuffer->renderBufferId());
++ if (attachment.m_point == QRenderTargetOutput::DepthStencil ||
++ attachment.m_point == QRenderTargetOutput::Stencil)
++ m_funcs->glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_STENCIL_ATTACHMENT, GL_RENDERBUFFER, renderBuffer->renderBufferId());
++ renderBuffer->release();
++ }
++
++ bool GraphicsHelperES2::supportsFeature(GraphicsHelperInterface::Feature feature) const
++ {
++ switch (feature) {
++ case RenderBufferDimensionRetrieval:
++ return true;
++ case BlitFramebuffer:
++ return m_supportFramebufferBlit;
++ default:
++ return false;
++ }
++ }
++
++ void GraphicsHelperES2::drawBuffers(GLsizei, const GLenum *)
++ {
++ static bool showWarning = true;
++ if (!showWarning)
++ return;
++ showWarning = false;
++ qWarning() << "drawBuffers is not supported by ES 2.0";
++ }
++
++ void GraphicsHelperES2::bindFragDataLocation(GLuint , const QHash<QString, int> &)
++ {
++ qCritical() << "bindFragDataLocation is not supported by ES 2.0";
++ }
++
++ void GraphicsHelperES2::bindUniformBlock(GLuint programId, GLuint uniformBlockIndex, GLuint uniformBlockBinding)
++ {
++ Q_UNUSED(programId);
++ Q_UNUSED(uniformBlockIndex);
++ Q_UNUSED(uniformBlockBinding);
++ static bool showWarning = true;
++ if (!showWarning)
++ return;
++ showWarning = false;
++ qWarning() << "UBO are not supported by ES 2.0 (since ES 3.0)";
++ }
++
++ void GraphicsHelperES2::bindShaderStorageBlock(GLuint programId, GLuint shaderStorageBlockIndex, GLuint shaderStorageBlockBinding)
++ {
++ Q_UNUSED(programId);
++ Q_UNUSED(shaderStorageBlockIndex);
++ Q_UNUSED(shaderStorageBlockBinding);
++ static bool showWarning = true;
++ if (!showWarning)
++ return;
++ showWarning = false;
++ qWarning() << "SSBO are not supported by ES 2.0 (since ES 3.1)";
++ }
++
++ void GraphicsHelperES2::bindBufferBase(GLenum target, GLuint index, GLuint buffer)
++ {
++ Q_UNUSED(target);
++ Q_UNUSED(index);
++ Q_UNUSED(buffer);
++ static bool showWarning = true;
++ if (!showWarning)
++ return;
++ showWarning = false;
++ qWarning() << "bindBufferBase is not supported by ES 2.0 (since ES 3.0)";
++ }
++
++ void GraphicsHelperES2::buildUniformBuffer(const QVariant &v, const ShaderUniform &description, QByteArray &buffer)
++ {
++ Q_UNUSED(v);
++ Q_UNUSED(description);
++ Q_UNUSED(buffer);
++ static bool showWarning = true;
++ if (!showWarning)
++ return;
++ showWarning = false;
++ qWarning() << "UBO are not supported by ES 2.0 (since ES 3.0)";
++ }
++
++ uint GraphicsHelperES2::uniformByteSize(const ShaderUniform &description)
++ {
++ uint rawByteSize = 0;
++ int arrayStride = qMax(description.m_arrayStride, 0);
++ int matrixStride = qMax(description.m_matrixStride, 0);
++
++ switch (description.m_type) {
++
++ case GL_FLOAT_VEC2:
++ case GL_INT_VEC2:
++ rawByteSize = 8;
++ break;
++
++ case GL_FLOAT_VEC3:
++ case GL_INT_VEC3:
++ rawByteSize = 12;
++ break;
++
++ case GL_FLOAT_VEC4:
++ case GL_INT_VEC4:
++ rawByteSize = 16;
++ break;
++
++ case GL_FLOAT_MAT2:
++ rawByteSize = matrixStride ? 2 * matrixStride : 16;
++ break;
++
++ case GL_FLOAT_MAT3:
++ rawByteSize = matrixStride ? 3 * matrixStride : 36;
++ break;
++
++ case GL_FLOAT_MAT4:
++ rawByteSize = matrixStride ? 4 * matrixStride : 64;
++ break;
++
++ case GL_BOOL:
++ rawByteSize = 1;
++ break;
++
++ case GL_BOOL_VEC2:
++ rawByteSize = 2;
++ break;
++
++ case GL_BOOL_VEC3:
++ rawByteSize = 3;
++ break;
++
++ case GL_BOOL_VEC4:
++ rawByteSize = 4;
++ break;
++
++ case GL_INT:
++ case GL_FLOAT:
++ case GL_SAMPLER_2D:
++ case GL_SAMPLER_CUBE:
++ rawByteSize = 4;
++ break;
++ }
++
++ return arrayStride ? rawByteSize * arrayStride : rawByteSize;
++ }
++
++ void GraphicsHelperES2::enableClipPlane(int)
++ {
++ }
++
++ void GraphicsHelperES2::disableClipPlane(int)
++ {
++ }
++
++ void GraphicsHelperES2::setClipPlane(int, const QVector3D &, float)
++ {
++ static bool showWarning = true;
++ if (!showWarning)
++ return;
++ showWarning = false;
++ qWarning() << "Clip planes not supported by OpenGL ES 2.0";
++ }
++
++ GLint GraphicsHelperES2::maxClipPlaneCount()
++ {
++ return 0;
++ }
++
++ void GraphicsHelperES2::memoryBarrier(QMemoryBarrier::Operations barriers)
++ {
++ Q_UNUSED(barriers);
++ static bool showWarning = true;
++ if (!showWarning)
++ return;
++ showWarning = false;
++ qWarning() << "memory barrier is not supported by OpenGL ES 2.0 (since 4.3)";
++ }
++
++ void GraphicsHelperES2::enablePrimitiveRestart(int)
++ {
++ static bool showWarning = true;
++ if (!showWarning)
++ return;
++ showWarning = false;
++ qWarning() << "primitive restart is not supported by OpenGL ES 2.0 (since GL 3.1, ES 3.0)";
++ }
++
++ void GraphicsHelperES2::enableVertexAttributeArray(int location)
++ {
++ m_funcs->glEnableVertexAttribArray(location);
++ }
++
++ void GraphicsHelperES2::disablePrimitiveRestart()
++ {
++ }
++
++ void GraphicsHelperES2::clearBufferf(GLint drawbuffer, const QVector4D &values)
++ {
++ Q_UNUSED(drawbuffer);
++ Q_UNUSED(values);
++ static bool showWarning = true;
++ if (!showWarning)
++ return;
++ showWarning = false;
++ qWarning() << "glClearBuffer*() not supported by OpenGL ES 2.0";
++ }
++
++ void GraphicsHelperES2::pointSize(bool programmable, GLfloat value)
++ {
++ // If this is not a reset to default values, print a warning
++ if (programmable || !qFuzzyCompare(value, 1.0f)) {
++ static bool warned = false;
++ if (!warned) {
++ qWarning() << "glPointSize() and GL_PROGRAM_POINT_SIZE are not supported by ES 2.0";
++ warned = true;
++ }
++ }
++ }
++
++ void GraphicsHelperES2::enablei(GLenum cap, GLuint index)
++ {
++ Q_UNUSED(cap);
++ Q_UNUSED(index);
++ static bool showWarning = true;
++ if (!showWarning)
++ return;
++ showWarning = false;
++ qWarning() << "glEnablei() not supported by OpenGL ES 2.0";
++ }
++
++ void GraphicsHelperES2::disablei(GLenum cap, GLuint index)
++ {
++ Q_UNUSED(cap);
++ Q_UNUSED(index);
++ static bool showWarning = true;
++ if (!showWarning)
++ return;
++ showWarning = false;
++ qWarning() << "glDisablei() not supported by OpenGL ES 2.0";
++ }
++
++ void GraphicsHelperES2::setSeamlessCubemap(bool enable)
++ {
++ Q_UNUSED(enable);
++ static bool showWarning = true;
++ if (!showWarning)
++ return;
++ showWarning = false;
++ qWarning() << "GL_TEXTURE_CUBE_MAP_SEAMLESS not supported by OpenGL ES 2.0";
++ }
++
++ QSize GraphicsHelperES2::getRenderBufferDimensions(GLuint renderBufferId)
++ {
++ GLint width = 0;
++ GLint height = 0;
++
++ m_funcs->glBindRenderbuffer(GL_RENDERBUFFER, renderBufferId);
++ m_funcs->glGetRenderbufferParameteriv(GL_RENDERBUFFER, GL_RENDERBUFFER_WIDTH, &width);
++ m_funcs->glGetRenderbufferParameteriv(GL_RENDERBUFFER, GL_RENDERBUFFER_HEIGHT, &height);
++ m_funcs->glBindRenderbuffer(GL_RENDERBUFFER, 0);
++
++ return QSize(width, height);
++ }
++
++ QSize GraphicsHelperES2::getTextureDimensions(GLuint textureId, GLenum target, uint level)
++ {
++ Q_UNUSED(textureId);
++ Q_UNUSED(target);
++ Q_UNUSED(level);
++ qCritical() << "getTextureDimensions is not supported by ES 2.0";
++ return QSize(0, 0);
++ }
++
++ void GraphicsHelperES2::dispatchCompute(GLuint wx, GLuint wy, GLuint wz)
++ {
++ Q_UNUSED(wx);
++ Q_UNUSED(wy);
++ Q_UNUSED(wz);
++ static bool showWarning = true;
++ if (!showWarning)
++ return;
++ showWarning = false;
++ qWarning() << "Compute Shaders are not supported by ES 2.0 (since ES 3.1)";
++ }
++
++ char *GraphicsHelperES2::mapBuffer(GLenum target, GLsizeiptr size)
++ {
++ Q_UNUSED(target);
++ Q_UNUSED(size);
++ static bool showWarning = true;
++ if (!showWarning)
++ return nullptr;
++ showWarning = false;
++ qWarning() << "Map buffer is not a core requirement for ES 2.0";
++ return nullptr;
++ }
++
++ GLboolean GraphicsHelperES2::unmapBuffer(GLenum target)
++ {
++ Q_UNUSED(target);
++ static bool showWarning = true;
++ if (!showWarning)
++ return false;
++ showWarning = false;
++ qWarning() << "unMap buffer is not a core requirement for ES 2.0";
++ return false;
++ }
++
++ void GraphicsHelperES2::glUniform1fv(GLint location, GLsizei count, const GLfloat *values)
++ {
++ m_funcs->glUniform1fv(location, count, values);
++ }
++
++ void GraphicsHelperES2::glUniform2fv(GLint location, GLsizei count, const GLfloat *values)
++ {
++ m_funcs->glUniform2fv(location, count, values);
++ }
++
++ void GraphicsHelperES2::glUniform3fv(GLint location, GLsizei count, const GLfloat *values)
++ {
++ m_funcs->glUniform3fv(location, count, values);
++ }
++
++ void GraphicsHelperES2::glUniform4fv(GLint location, GLsizei count, const GLfloat *values)
++ {
++ m_funcs->glUniform4fv(location, count, values);
++ }
++
++ void GraphicsHelperES2::glUniform1iv(GLint location, GLsizei count, const GLint *values)
++ {
++ m_funcs->glUniform1iv(location, count, values);
++ }
++
++ void GraphicsHelperES2::glUniform2iv(GLint location, GLsizei count, const GLint *values)
++ {
++ m_funcs->glUniform2iv(location, count, values);
++ }
++
++ void GraphicsHelperES2::glUniform3iv(GLint location, GLsizei count, const GLint *values)
++ {
++ m_funcs->glUniform3iv(location, count, values);
++ }
++
++ void GraphicsHelperES2::glUniform4iv(GLint location, GLsizei count, const GLint *values)
++ {
++ m_funcs->glUniform4iv(location, count, values);
++ }
++
++ void GraphicsHelperES2::glUniform1uiv(GLint , GLsizei , const GLuint *)
++ {
++ static bool showWarning = true;
++ if (!showWarning)
++ return;
++ showWarning = false;
++ qWarning() << "glUniform1uiv not supported by ES 2";
++ }
++
++ void GraphicsHelperES2::glUniform2uiv(GLint , GLsizei , const GLuint *)
++ {
++ static bool showWarning = true;
++ if (!showWarning)
++ return;
++ showWarning = false;
++ qWarning() << "glUniform2uiv not supported by ES 2";
++ }
++
++ void GraphicsHelperES2::glUniform3uiv(GLint , GLsizei , const GLuint *)
++ {
++ static bool showWarning = true;
++ if (!showWarning)
++ return;
++ showWarning = false;
++ qWarning() << "glUniform3uiv not supported by ES 2";
++ }
++
++ void GraphicsHelperES2::glUniform4uiv(GLint , GLsizei , const GLuint *)
++ {
++ static bool showWarning = true;
++ if (!showWarning)
++ return;
++ showWarning = false;
++ qWarning() << "glUniform4uiv not supported by ES 2";
++ }
++
++ void GraphicsHelperES2::glUniformMatrix2fv(GLint location, GLsizei count, const GLfloat *values)
++ {
++ m_funcs->glUniformMatrix2fv(location, count, false, values);
++ }
++
++ void GraphicsHelperES2::glUniformMatrix3fv(GLint location, GLsizei count, const GLfloat *values)
++ {
++ m_funcs->glUniformMatrix3fv(location, count, false, values);
++ }
++
++ void GraphicsHelperES2::glUniformMatrix4fv(GLint location, GLsizei count, const GLfloat *values)
++ {
++ m_funcs->glUniformMatrix4fv(location, count, false, values);
++ }
++
++ void GraphicsHelperES2::glUniformMatrix2x3fv(GLint , GLsizei , const GLfloat *)
++ {
++ static bool showWarning = true;
++ if (!showWarning)
++ return;
++ showWarning = false;
++ qWarning() << "glUniformMatrix2x3fv not supported by ES 2";
++ }
++
++ void GraphicsHelperES2::glUniformMatrix3x2fv(GLint , GLsizei , const GLfloat *)
++ {
++ static bool showWarning = true;
++ if (!showWarning)
++ return;
++ showWarning = false;
++ qWarning() << "glUniformMatrix3x2fv not supported by ES 2";
++ }
++
++ void GraphicsHelperES2::glUniformMatrix2x4fv(GLint , GLsizei , const GLfloat *)
++ {
++ static bool showWarning = true;
++ if (!showWarning)
++ return;
++ showWarning = false;
++ qWarning() << "glUniformMatrix2x4fv not supported by ES 2";
++ }
++
++ void GraphicsHelperES2::glUniformMatrix4x2fv(GLint , GLsizei , const GLfloat *)
++ {
++ static bool showWarning = true;
++ if (!showWarning)
++ return;
++ showWarning = false;
++ qWarning() << "glUniformMatrix4x2fv not supported by ES 2";
++ }
++
++ void GraphicsHelperES2::glUniformMatrix3x4fv(GLint , GLsizei , const GLfloat *)
++ {
++ static bool showWarning = true;
++ if (!showWarning)
++ return;
++ showWarning = false;
++ qWarning() << "glUniformMatrix3x4fv not supported by ES 2";
++ }
++
++ void GraphicsHelperES2::glUniformMatrix4x3fv(GLint , GLsizei , const GLfloat *)
++ {
++ static bool showWarning = true;
++ if (!showWarning)
++ return;
++ showWarning = false;
++ qWarning() << "glUniformMatrix4x3fv not supported by ES 2";
++ }
++
++ UniformType GraphicsHelperES2::uniformTypeFromGLType(GLenum type)
++ {
++ switch (type) {
++ case GL_FLOAT:
++ return UniformType::Float;
++ case GL_FLOAT_VEC2:
++ return UniformType::Vec2;
++ case GL_FLOAT_VEC3:
++ return UniformType::Vec3;
++ case GL_FLOAT_VEC4:
++ return UniformType::Vec4;
++ case GL_FLOAT_MAT2:
++ return UniformType::Mat2;
++ case GL_FLOAT_MAT3:
++ return UniformType::Mat3;
++ case GL_FLOAT_MAT4:
++ return UniformType::Mat4;
++ case GL_INT:
++ return UniformType::Int;
++ case GL_INT_VEC2:
++ return UniformType::IVec2;
++ case GL_INT_VEC3:
++ return UniformType::IVec3;
++ case GL_INT_VEC4:
++ return UniformType::IVec4;
++ case GL_BOOL:
++ return UniformType::Bool;
++ case GL_BOOL_VEC2:
++ return UniformType::BVec2;
++ case GL_BOOL_VEC3:
++ return UniformType::BVec3;
++ case GL_BOOL_VEC4:
++ return UniformType::BVec4;
++
++ case GL_SAMPLER_2D:
++ case GL_SAMPLER_CUBE:
++ return UniformType::Sampler;
++ default:
++ Q_UNREACHABLE_RETURN(UniformType::Float);
++ }
++ }
++
++ void GraphicsHelperES2::blitFramebuffer(GLint srcX0, GLint srcY0, GLint srcX1, GLint srcY1, GLint dstX0, GLint dstY0, GLint dstX1, GLint dstY1, GLbitfield mask, GLenum filter)
++ {
++ if (!m_supportFramebufferBlit) {
++ static bool showWarning = true;
++ if (!showWarning)
++ return;
++ showWarning = false;
++ qWarning() << "Framebuffer blits are not supported by ES 2.0 (since ES 3.1)";
++ } else
++ m_ext->glBlitFramebuffer(srcX0, srcY0, srcX1, srcY1, dstX0, dstY0, dstX1, dstY1, mask, filter);
++ }
++
++ } // namespace OpenGL
++ } // namespace Render
++ } // namespace Qt3DRender
++
++ QT_END_NAMESPACE