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[Feat] (Diligent, MG_Impl): wire GenerateMipmap via Diligent GPU mip generation

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- Create state textures with MISC_TEXTURE_FLAG_GENERATE_MIPS
- GenerateMipmap resolves active GL_TEXTURE_2D and calls IDeviceContext::GenerateMips
- Update handoff; 16 Diligent tests pass
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BZLZHH
2026-08-23 10:08:54 +08:00
parent b9d1504cc5
commit 34ff95f6f5
4 changed files with 28 additions and 1 deletions
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HANDOFF_DILIGENT.md
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@@ -158,6 +158,7 @@ Verified locally on Turnip Adreno 750:
- `BlitFramebuffer` (same-size color copy between current read/draw FBOs)
- `CopyTexImage2D` / `CopyTexSubImage2D` (whole-color copy fallback)
- `CopyImageSubData` (whole-texture copy between two texture objects)
- `GenerateMipmap` (Diligent GPU mip generation on state textures)
- `GetTexImage` / `GetTextureImage` (RGBA8 readback)
- `ReadPixels` from default and user color attachments
- Primitive expansion:
@@ -218,7 +219,7 @@ Notes:
- Global UBO (default-block `glUniform*`) and named application UBO blocks (through `glBindBufferBase`/`glUniformBlockBinding`) now upload and bind; SSBOs are still not fed from frontend buffer bindings.
- No swapchain / EGL window surface presentation yet; `Present()` only flushes.
- No transform feedback / queries / sync / readback of non-color resources.
- Draw range, multi-draw, instanced-draw wrappers, clear-buffer, blit, read-pixels, CopyTexImage*, GetTexImage/GetTextureImage and indirect draws are now wired; buffer subdata paths still remain.
- Draw range, multi-draw, instanced-draw wrappers, clear-buffer, blit, read-pixels, CopyTexImage*, CopyImageSubData, GenerateMipmap, GetTexImage/GetTextureImage and indirect draws are now wired; buffer subdata paths still remain.
- A last-PSO cache now avoids recreating the pipeline when program/render-state/topology/VAO layout is unchanged; texture/UBO resources are still rebound dynamically per draw.
- The `GLFunctionsTable` is only partially populated.