support faster texture updates for vulkan renderer#72
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Pull request overview
This PR adds a Vulkan-specific fast path for image texture creation by allowing callers to supply an existing Vulkan staging buffer directly, avoiding an internal buffer allocation and CPU memcpy during texture uploads.
Changes:
- Refactors
vkutil::Texture2D::scheduleUpload(const void*, size_t)to allocate/copy into a temporary buffer and delegate to a new buffer-based overload. - Introduces
vkutil::Texture2D::scheduleUpload(rcp<vkutil::Buffer>)to enable deferred uploads from caller-provided buffers. - Adds a
RenderContextVulkanImpl::makeImageTexture(...)overload that accepts anrcp<vkutil::Buffer>containing RGBA premultiplied data.
Reviewed changes
Copilot reviewed 4 out of 4 changed files in this pull request and generated 2 comments.
| File | Description |
|---|---|
| renderer/src/vulkan/vkutil.cpp | Refactors upload scheduling and adds a new buffer-based upload path. |
| renderer/include/rive/renderer/vulkan/vkutil.hpp | Exposes the new Texture2D::scheduleUpload(rcp<vkutil::Buffer>) overload. |
| renderer/src/vulkan/render_context_vulkan_impl.cpp | Adds a Vulkan-only makeImageTexture overload that takes a pre-existing buffer. |
| renderer/include/rive/renderer/vulkan/render_context_vulkan_impl.hpp | Declares the new Vulkan-only makeImageTexture overload. |
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| void Texture2D::scheduleUpload(rcp<vkutil::Buffer> imageBuffer) | ||
| { | ||
| m_imageUploadBuffer = imageBuffer; | ||
| m_imageUploadBuffer->flushContents(); | ||
| } |
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| rcp<Texture> RenderContextVulkanImpl::makeImageTexture( | ||
| uint32_t width, uint32_t height, uint32_t mipLevelCount, | ||
| rcp<vkutil::Buffer> imageBufferRGBAPremul) | ||
| { | ||
| assert(imageBufferRGBAPremul->info().size >= height * width * 4); | ||
| auto texture = m_vk->makeTexture2D({ |
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the caller can now provide the vulkan buffer directly, avoiding an allocation and copy.