diff options
Diffstat (limited to 'src/render/renderers/opengl/graphicshelpers/graphicshelperes3_1.cpp')
| -rw-r--r-- | src/render/renderers/opengl/graphicshelpers/graphicshelperes3_1.cpp | 168 |
1 files changed, 168 insertions, 0 deletions
diff --git a/src/render/renderers/opengl/graphicshelpers/graphicshelperes3_1.cpp b/src/render/renderers/opengl/graphicshelpers/graphicshelperes3_1.cpp index 135e83aec..a555b67ef 100644 --- a/src/render/renderers/opengl/graphicshelpers/graphicshelperes3_1.cpp +++ b/src/render/renderers/opengl/graphicshelpers/graphicshelperes3_1.cpp @@ -53,10 +53,114 @@ QT_BEGIN_NAMESPACE #ifndef GL_UNSIGNED_INT_SAMPLER_2D_MULTISAMPLE #define GL_UNSIGNED_INT_SAMPLER_2D_MULTISAMPLE 0x910A #endif +#ifndef GL_ACTIVE_RESOURCES +#define GL_ACTIVE_RESOURCES 0x92F5 +#endif +#ifndef GL_BUFFER_BINDING +#define GL_BUFFER_BINDING 0x9302 +#endif +#ifndef GL_BUFFER_DATA_SIZE +#define GL_BUFFER_DATA_SIZE 0x9303 +#endif +#ifndef GL_NUM_ACTIVE_VARIABLES +#define GL_NUM_ACTIVE_VARIABLES 0x9304 +#endif +#ifndef GL_SHADER_STORAGE_BLOCK +#define GL_SHADER_STORAGE_BLOCK 0x92E6 +#endif +#ifndef GL_ALL_BARRIER_BITS +#define GL_ALL_BARRIER_BITS 0xFFFFFFFF +#endif +#ifndef GL_VERTEX_ATTRIB_ARRAY_BARRIER_BIT +#define GL_VERTEX_ATTRIB_ARRAY_BARRIER_BIT 0x00000001 +#endif +#ifndef GL_ELEMENT_ARRAY_BARRIER_BIT +#define GL_ELEMENT_ARRAY_BARRIER_BIT 0x00000002 +#endif +#ifndef GL_UNIFORM_BARRIER_BIT +#define GL_UNIFORM_BARRIER_BIT 0x00000004 +#endif +#ifndef GL_TEXTURE_FETCH_BARRIER_BIT +#define GL_TEXTURE_FETCH_BARRIER_BIT 0x00000008 +#endif +#ifndef GL_SHADER_IMAGE_ACCESS_BARRIER_BIT +#define GL_SHADER_IMAGE_ACCESS_BARRIER_BIT 0x00000020 +#endif +#ifndef GL_COMMAND_BARRIER_BIT +#define GL_COMMAND_BARRIER_BIT 0x00000040 +#endif +#ifndef GL_PIXEL_BUFFER_BARRIER_BIT +#define GL_PIXEL_BUFFER_BARRIER_BIT 0x00000080 +#endif +#ifndef GL_TEXTURE_UPDATE_BARRIER_BIT +#define GL_TEXTURE_UPDATE_BARRIER_BIT 0x00000100 +#endif +#ifndef GL_BUFFER_UPDATE_BARRIER_BIT +#define GL_BUFFER_UPDATE_BARRIER_BIT 0x00000200 +#endif +#ifndef GL_FRAMEBUFFER_BARRIER_BIT +#define GL_FRAMEBUFFER_BARRIER_BIT 0x00000400 +#endif +#ifndef GL_TRANSFORM_FEEDBACK_BARRIER_BIT +#define GL_TRANSFORM_FEEDBACK_BARRIER_BIT 0x00000800 +#endif +#ifndef GL_ATOMIC_COUNTER_BARRIER_BIT +#define GL_ATOMIC_COUNTER_BARRIER_BIT 0x00001000 +#endif +#ifndef GL_SHADER_STORAGE_BARRIER_BIT +#define GL_SHADER_STORAGE_BARRIER_BIT 0x00002000 +#endif + namespace Qt3DRender { namespace Render { +namespace { + +GLbitfield memoryBarrierGLBitfield(QMemoryBarrier::Operations barriers) +{ + GLbitfield bits = 0; + + if (barriers.testFlag(QMemoryBarrier::All)) { + bits |= GL_ALL_BARRIER_BITS; + return bits; + } + + if (barriers.testFlag(QMemoryBarrier::VertexAttributeArray)) + bits |= GL_VERTEX_ATTRIB_ARRAY_BARRIER_BIT; + if (barriers.testFlag(QMemoryBarrier::ElementArray)) + bits |= GL_ELEMENT_ARRAY_BARRIER_BIT; + if (barriers.testFlag(QMemoryBarrier::Uniform)) + bits |= GL_UNIFORM_BARRIER_BIT; + if (barriers.testFlag(QMemoryBarrier::TextureFetch)) + bits |= GL_TEXTURE_FETCH_BARRIER_BIT; + if (barriers.testFlag(QMemoryBarrier::ShaderImageAccess)) + bits |= GL_SHADER_IMAGE_ACCESS_BARRIER_BIT; + if (barriers.testFlag(QMemoryBarrier::Command)) + bits |= GL_COMMAND_BARRIER_BIT; + if (barriers.testFlag(QMemoryBarrier::PixelBuffer)) + bits |= GL_PIXEL_BUFFER_BARRIER_BIT; + if (barriers.testFlag(QMemoryBarrier::TextureUpdate)) + bits |= GL_TEXTURE_UPDATE_BARRIER_BIT; + if (barriers.testFlag(QMemoryBarrier::BufferUpdate)) + bits |= GL_BUFFER_UPDATE_BARRIER_BIT; + if (barriers.testFlag(QMemoryBarrier::FrameBuffer)) + bits |= GL_FRAMEBUFFER_BARRIER_BIT; + if (barriers.testFlag(QMemoryBarrier::TransformFeedback)) + bits |= GL_TRANSFORM_FEEDBACK_BARRIER_BIT; + if (barriers.testFlag(QMemoryBarrier::AtomicCounter)) + bits |= GL_ATOMIC_COUNTER_BARRIER_BIT; + if (barriers.testFlag(QMemoryBarrier::ShaderStorage)) + bits |= GL_SHADER_STORAGE_BARRIER_BIT; + if (barriers.testFlag(QMemoryBarrier::QueryBuffer)) + qWarning() << "QueryBuffer barrier not supported by ES 3.1"; + + return bits; +} + +} // anonymous + + GraphicsHelperES3_1::GraphicsHelperES3_1() { } @@ -65,6 +169,70 @@ GraphicsHelperES3_1::~GraphicsHelperES3_1() { } +bool GraphicsHelperES3_1::supportsFeature(GraphicsHelperInterface::Feature feature) const +{ + switch (feature) { + case GraphicsHelperInterface::Compute: + case GraphicsHelperInterface::ShaderStorageObject: + case GraphicsHelperInterface::IndirectDrawing: + return true; + default: + break; + } + return GraphicsHelperES3::supportsFeature(feature); +} + +void GraphicsHelperES3_1::dispatchCompute(GLuint wx, GLuint wy, GLuint wz) +{ + m_extraFuncs->glDispatchCompute(wx, wy, wz); +} + +void GraphicsHelperES3_1::memoryBarrier(QMemoryBarrier::Operations barriers) +{ + m_extraFuncs->glMemoryBarrier(memoryBarrierGLBitfield(barriers)); +} + +void GraphicsHelperES3_1::drawArraysIndirect(GLenum mode, void *indirect) +{ + m_extraFuncs->glDrawArraysIndirect(mode, indirect); +} + +void GraphicsHelperES3_1::drawElementsIndirect(GLenum mode, GLenum type, void *indirect) +{ + m_extraFuncs->glDrawElementsIndirect(mode, type, indirect); +} + +void GraphicsHelperES3_1::bindShaderStorageBlock(GLuint , GLuint , GLuint ) +{ + // ES 3.1 has no API for that, bindings have to be specified directly in the shader + // with layout(std430, binding = 3) + qWarning() << "ES 3.1 has no bindShaderStorageBlock API, it uses binding declaration from the shader storage block"; +} + +QVector<ShaderStorageBlock> GraphicsHelperES3_1::programShaderStorageBlocks(GLuint programId) +{ + QVector<ShaderStorageBlock> blocks; + GLint nbrActiveShaderStorageBlocks = 0; + m_extraFuncs->glGetProgramInterfaceiv(programId, GL_SHADER_STORAGE_BLOCK, GL_ACTIVE_RESOURCES, &nbrActiveShaderStorageBlocks); + blocks.reserve(nbrActiveShaderStorageBlocks); + for (GLint i = 0; i < nbrActiveShaderStorageBlocks; ++i) { + QByteArray storageBlockName(256, '\0'); + GLsizei length = 0; + ShaderStorageBlock storageBlock; + m_extraFuncs->glGetProgramResourceName(programId, GL_SHADER_STORAGE_BLOCK, i, 256, &length, storageBlockName.data()); + storageBlock.m_index = i; + storageBlock.m_name = QString::fromUtf8(storageBlockName.left(length)); + GLenum prop = GL_BUFFER_BINDING; + m_extraFuncs->glGetProgramResourceiv(programId, GL_SHADER_STORAGE_BLOCK, i, 1, &prop, 4, NULL, &storageBlock.m_binding); + prop = GL_BUFFER_DATA_SIZE; + m_extraFuncs->glGetProgramResourceiv(programId, GL_SHADER_STORAGE_BLOCK, i, 1, &prop, 4, NULL, &storageBlock.m_size); + prop = GL_NUM_ACTIVE_VARIABLES; + m_extraFuncs->glGetProgramResourceiv(programId, GL_SHADER_STORAGE_BLOCK, i, 1, &prop, 4, NULL, &storageBlock.m_activeVariablesCount); + blocks.push_back(storageBlock); + } + return blocks; +} + UniformType GraphicsHelperES3_1::uniformTypeFromGLType(GLenum glType) { switch (glType) { |