The GLImpl implementation existed but the exported symbol was still a
stub; Flywheel's indirect OIT framebuffer attaches array-texture layers
through it.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
- Enable multiDrawIndirect and shaderDrawParameters device features when
supported (the latter via VkPhysicalDeviceShaderDrawParametersFeatures on
Vulkan 1.1+), so DrawIndex/BaseInstance SPIR-V builtins are valid and
vkCmdDrawIndexedIndirect(Count) may draw more than one command.
- Plain glMultiDrawElementsIndirect no longer requires a GL_PARAMETER_BUFFER
(it previously drew nothing for the standard Flywheel call); it now issues
a native vkCmdDrawIndexedIndirect, with a per-command loop fallback when
the multiDrawIndirect feature is unavailable.
- glDrawElementsIndirect / glDrawArraysIndirect / glMultiDrawArraysIndirect
read the live GPU buffer via native indirect draws instead of the CPU
shadow (which cannot see compute-written commands); the CPU path remains
only for client-memory commands.
- Advertise the same five extensions as DirectGLES for Flywheel's
capability probe.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
- Advertise ARB_gpu_shader5 / ARB_multi_bind / ARB_shading_language_420pack /
ARB_vertex_attrib_binding / ARB_shader_image_size so LWJGL reports
SUPPORTS_INDIRECT.
- New LowerDrawParametersPass demotes DrawIndex/BaseInstance/BaseVertex
builtins to Private globals (mg_DrawID/mg_BaseInstance/mg_BaseVertex) for
the ESSL transpile; SPIRV-Cross otherwise throws for ES profiles. The
program manager promotes the emitted globals to uniforms and feeds them
per (sub-)draw.
- Indirect draws now execute natively on the GPU (glDrawElementsIndirect /
glDrawArraysIndirect per command) when an indirect buffer is bound, so
compute-written command fields (Flywheel culling updates instanceCount)
are honored; detects GL_EXT_base_instance and falls back to the CPU loop
when the command's baseInstance cannot be consumed natively.
- Sync SSBO binding points for graphics draws, not just compute (Flywheel
vertex shaders read instance data from SSBOs).
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Add a separate binding-point model to VertexArrayObject with eager
resolution into the flat per-attribute view backends already consume.
Implements glBindVertexBuffer(s), glVertexAttrib(I)Format,
glVertexAttribBinding, glVertexBindingDivisor and the DSA variants
(glVertexArrayAttribBinding, glVertexArrayBindingDivisor,
glVertexArrayVertexBuffers), fixing glVertexArrayVertexBuffer which
previously conflated binding index with attribute index. Multi-bind
(glBindBuffersBase/Range) loops over the single-bind entry points.
Needed by Flywheel's indirect backend (GlVertexArrayDSA setup path).
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Track context generation + synced change serial per resource; re-register
ops on MakeCurrent. Fixes frozen buffer contents after the trace replayer's
probe context teardown.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Replace the application-specific PackPhotonSharedVec3Memory GLSL regex
patch with a general DecomposeWorkgroupVec3Pass SPIR-V optimization pass.
The new pass decomposes vec3/ivec3/uvec3/bvec3 Workgroup (shared) memory
variables into scalar arrays (e.g. shared vec3 arr[N][M] -> shared float
arr[N][M][3]), rewriting whole-vector loads/stores into per-component
scalar loads/stores. Component-level accesses (e.g. arr[i].x) are
unchanged since a trailing component index into a float[3] yields the
same scalar pointer as it did for a vec3.
Unlike the regex hack, the pass is application-agnostic: it does not
match on variable names, array dimensions, or shader pack identity, and
runs at the SPIR-V level before SPIRV-Cross decompilation.
Registered in SanitizeAndOptimizeBinary after AggressiveDCE so dead
workgroup accesses are already eliminated. Asserts on unsupported
OpAtomic*/OpCopyMemory targeting vec3 workgroup pointers.
Adds ProgramUtilTest.DecomposeWorkgroupVec3InSpirvPass covering array
declaration, +=, whole load/store, component access, and row-copy loop.
swung0x48andClaude Fable 5