rhi: Add compute api and implement for Vulkan and Metal

D3D11 and GL (4.3+, ES 3.1+) will come separately at a
later time.

Change-Id: If30f2f3d062fa27e57e9912674669225b82a7b93
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
 
 
 
 
 
 

1 files changed, 50 insertions, 0 deletions

diff --git a/src/gui/rhi/qrhinull.cpp b/src/gui/rhi/qrhinull.cpp
index c764669058..1314e53893 100644
--- a/src/gui/rhi/qrhinull.cpp
+++ b/src/gui/rhi/qrhinull.cpp
@@ -201,6 +201,11 @@ QRhiGraphicsPipeline *QRhiNull::createGraphicsPipeline()
     return new QNullGraphicsPipeline(this);
 }
 
+QRhiComputePipeline *QRhiNull::createComputePipeline()
+{
+    return new QNullComputePipeline(this);
+}
+
 QRhiShaderResourceBindings *QRhiNull::createShaderResourceBindings()
 {
     return new QNullShaderResourceBindings(this);
@@ -297,6 +302,20 @@ void QRhiNull::debugMarkMsg(QRhiCommandBuffer *cb, const QByteArray &msg)
     Q_UNUSED(msg);
 }
 
+void QRhiNull::setComputePipeline(QRhiCommandBuffer *cb, QRhiComputePipeline *ps)
+{
+    Q_UNUSED(cb);
+    Q_UNUSED(ps);
+}
+
+void QRhiNull::dispatch(QRhiCommandBuffer *cb, int x, int y, int z)
+{
+    Q_UNUSED(cb);
+    Q_UNUSED(x);
+    Q_UNUSED(y);
+    Q_UNUSED(z);
+}
+
 const QRhiNativeHandles *QRhiNull::nativeHandles(QRhiCommandBuffer *cb)
 {
     Q_UNUSED(cb);
@@ -395,6 +414,18 @@ void QRhiNull::endPass(QRhiCommandBuffer *cb, QRhiResourceUpdateBatch *resourceU
         resourceUpdate(cb, resourceUpdates);
 }
 
+void QRhiNull::beginComputePass(QRhiCommandBuffer *cb, QRhiResourceUpdateBatch *resourceUpdates)
+{
+    if (resourceUpdates)
+        resourceUpdate(cb, resourceUpdates);
+}
+
+void QRhiNull::endComputePass(QRhiCommandBuffer *cb, QRhiResourceUpdateBatch *resourceUpdates)
+{
+    if (resourceUpdates)
+        resourceUpdate(cb, resourceUpdates);
+}
+
 QNullBuffer::QNullBuffer(QRhiImplementation *rhi, Type type, UsageFlags usage, int size)
     : QRhiBuffer(rhi, type, usage, size)
 {
@@ -647,6 +678,25 @@ bool QNullGraphicsPipeline::build()
     return true;
 }
 
+QNullComputePipeline::QNullComputePipeline(QRhiImplementation *rhi)
+    : QRhiComputePipeline(rhi)
+{
+}
+
+QNullComputePipeline::~QNullComputePipeline()
+{
+    release();
+}
+
+void QNullComputePipeline::release()
+{
+}
+
+bool QNullComputePipeline::build()
+{
+    return true;
+}
+
 QNullCommandBuffer::QNullCommandBuffer(QRhiImplementation *rhi)
     : QRhiCommandBuffer(rhi)
 {