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* Fix device local alloc in hellovulkantextureLaszlo Agocs2018-09-121-0/+10
| | | | | | | | | | Running with QT_VK_FORCE_STAGE_TEX does not work at all with recent NVIDIA drivers due to QVulkanWindow's and the example's naive way of picking the memory index. Enhance this and add a warning note to the QVulkanWindow docs as well. Change-Id: I7f200e11d982b56e3da3b71ee3915bd7bfca5cc1 Reviewed-by: Andy Nichols <andy.nichols@qt.io>
* Fix src access with staging buffer in hellovulkantextureLaszlo Agocs2018-09-121-3/+3
| | | | | Change-Id: Iafcd94ec812a61dcfae6da43b1ca9f5771e05e56 Reviewed-by: Andy Nichols <andy.nichols@qt.io>
* Revise an incorrect QVulkanWindow doc noteLaszlo Agocs2018-09-063-4/+4
| | | | | | | | | | | | | Applying the transformation in question has no effect on the winding order. Rewrite that section. While all the examples are correct, clarify the rules for the geometry they use since the winding order varies. Fix up the triangle example code to use front=CCW for clarity (even though it does not matter much since culling is off there). Change-Id: Icb968c76cc9fa918a5608d3c66b4fccd5668175e Reviewed-by: Christian Stromme <christian.stromme@qt.io>
* Doc: Add missing full stops in briefsPaul Wicking2018-06-215-5/+5
| | | | | | Task-number: QTBUG-68933 Change-Id: I3f2a9f8c562f9a44bb32bddd31d75abbfe6de04d Reviewed-by: Topi Reiniö <topi.reinio@qt.io>
* Vulkan Examples: Fix Clang warnings about initialization of VkClearColorValueFriedemann Kleint2018-04-304-4/+4
| | | | | | | | | | | | | | hellovulkanwindow.cpp(97,38): warning: suggest braces around initialization of subobject [-Wmissing-braces] VkClearColorValue clearColor = { 0.0f, m_green, 0.0f, 1.0f }; hellovulkantexture.cpp(771,38): warning: suggest braces around initialization of subobject [-Wmissing-braces] VkClearColorValue clearColor = { 0, 0, 0, 1 }; ..\shared\trianglerenderer.cpp(455,38): warning: suggest braces around initialization of subobject [-Wmissing-braces] VkClearColorValue clearColor = { 0, 0, 0, 1 }; renderer.cpp(896,38): warning: suggest braces around initialization of subobject [-Wmissing-braces] VkClearColorValue clearColor = { 0.67f, 0.84f, 0.9f, 1.0f }; Change-Id: I3c2403699059dac2f88541f2a2102b774db0c887 Reviewed-by: Laszlo Agocs <laszlo.agocs@qt.io>
* hellovulkantexture: Fix issues with new validation layerLaszlo Agocs2017-10-161-2/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Upgrading to a recent Vulkan SDK (e.g. 1.0.61) leads to getting a few previously unseen warnings from the validation layers. Fix these: vkDebug: ParameterValidation: 8: vkCreateSampler(): The samplerAnisotropy feature was not enabled at device-creation time, so the maxAnisotropy member of the VkSamplerCreateInfo structure must be 1.0 but is 0.000000. vkDebug: DS: 461375808: vkCmdPipelineBarrier(): pImageMemBarriers[0].srcAccessMask (0x4000) is not supported by srcStageMask (0x1). The spec valid usage text states 'Any given element of pMemoryBarriers, pBufferMemoryBarriers or pImageMemoryBarriers must not have any access flag included in its srcAccessMask member if that bit is not supported by any of the pipeline stages in srcStageMask, as specified in the table of supported access types.' vkDebug: DS: 6: vkCmdDraw(): Cannot use image 0x7 with specific layout VK_IMAGE_LAYOUT_GENERAL that doesn't match the actual current layout VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL. vkDebug: DS: 61: Descriptor set 0xc encountered the following validation error at vkCmdDraw() time: Image layout specified at vkUpdateDescriptorSets() time doesn't match actual image layout at time descriptor is used. See previous error callback for specific details. Change-Id: I1a3200221ac725c2fa661eff3ac075262b9355c2 Reviewed-by: Andy Nichols <andy.nichols@qt.io>
* QVulkanWindow: return QMatrix4x4 by valueMarc Mutz2017-05-223-3/+3
| | | | | | | The function never returns nullptr, so return the matrix by value. Change-Id: I7c1eeb43b9693866049763565b575348ddd35548 Reviewed-by: Laszlo Agocs <laszlo.agocs@qt.io>
* QVulkanWindow: use QVector, not QSet, for small int setMarc Mutz2017-05-223-4/+3
| | | | | | | | | | Apart from being more efficient to construct and test, for the expected very small number of entries, the example code itself shows that a sorted vector is much more useful than an unordered set. Change-Id: Ic5e38df0176ac4be08eac6a89c2e1cabab2a9020 Reviewed-by: Shawn Rutledge <shawn.rutledge@qt.io> Reviewed-by: Laszlo Agocs <laszlo.agocs@qt.io>
* hellovulkanwidget example: Add a widget showing debug outputFriedemann Kleint2017-03-303-9/+34
| | | | | | | Add a tab widget for vulkan info and debug log. Change-Id: I0428bb5b6f847d0e94d62e846d34e4cb69eda5b6 Reviewed-by: Laszlo Agocs <laszlo.agocs@qt.io>
* Add the Vulkan cube exampleLaszlo Agocs2017-03-2931-1/+5703
| | | | | | | Features a little bit more than a cube, though. Change-Id: I636d4875ba9ccf722ed3caab97f14570be785748 Reviewed-by: Andy Nichols <andy.nichols@qt.io>
* Clarify the front face winding order in the Vulkan examplesLaszlo Agocs2017-03-262-3/+3
| | | | | | | | | After applying the correction matrix the front face is CW, not CCW. The examples work either way but fix them up to avoid reader confusion. Change-Id: I491e6dc17c21897a59f36d32061e937f2b6c4c9d Reviewed-by: Andy Nichols <andy.nichols@qt.io>
* Introduce QVulkanWindowLaszlo Agocs2017-03-2237-0/+2761
A convenience subclass of QWindow that provides a Vulkan-capable window with a double-buffered FIFO swapchain. While advanced use cases are better served by a custom QWindow subclass, many applications can benefit from having a convenient helper that makes getting started easier. Add also three examples of increasing complexity, and a variant that shows embeddeding into widgets via QWindowContainer. [ChangeLog][QtGui] Added QVulkanWindow, a convenience subclass of QWindow. Task-number: QTBUG-55981 Change-Id: I6cdc9ff1390ac6258e278377233fd369a0bfeddc Reviewed-by: Andy Nichols <andy.nichols@qt.io>
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