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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,98 @@ | ||
| //go:build go1.21 | ||
| // +build go1.21 | ||
|
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| package rl | ||
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| /* | ||
| #include "raylib.h" | ||
| #include <stdlib.h> | ||
| */ | ||
| import "C" | ||
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| import ( | ||
| "runtime" | ||
| "slices" | ||
| ) | ||
|
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| // List of VaoIDs of meshes created by calling UploadMesh() | ||
| // Used by UnloadMesh() to determine if mesh is go-managed or C-allocated | ||
| var goManagedMeshIDs = make([]uint32, 0) | ||
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| // UploadMesh - Upload vertex data into a VAO (if supported) and VBO | ||
| func UploadMesh(mesh *Mesh, dynamic bool) { | ||
| // check if mesh has already been uploaded to prevent duplication | ||
| if mesh.VaoID != 0 { | ||
| TraceLog(LogWarning, "VAO: [ID %d] Trying to re-load an already loaded mesh", mesh.VaoID) | ||
| return | ||
| } | ||
|
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| pinner := runtime.Pinner{} | ||
| // Mesh pointer fields must be pinned to allow a Mesh pointer to be passed to C.UploadMesh() below | ||
| // nil checks are required because Pin() will panic if passed nil | ||
| if mesh.Vertices != nil { | ||
| pinner.Pin(mesh.Vertices) | ||
| } | ||
| if mesh.Texcoords != nil { | ||
| pinner.Pin(mesh.Texcoords) | ||
| } | ||
| if mesh.Texcoords2 != nil { | ||
| pinner.Pin(mesh.Texcoords2) | ||
| } | ||
| if mesh.Normals != nil { | ||
| pinner.Pin(mesh.Normals) | ||
| } | ||
| if mesh.Tangents != nil { | ||
| pinner.Pin(mesh.Tangents) | ||
| } | ||
| if mesh.Colors != nil { | ||
| pinner.Pin(mesh.Colors) | ||
| } | ||
| if mesh.Indices != nil { | ||
| pinner.Pin(mesh.Indices) | ||
| } | ||
| if mesh.AnimVertices != nil { | ||
| pinner.Pin(mesh.AnimVertices) | ||
| } | ||
| if mesh.AnimNormals != nil { | ||
| pinner.Pin(mesh.AnimNormals) | ||
| } | ||
| if mesh.BoneIds != nil { | ||
| pinner.Pin(mesh.BoneIds) | ||
| } | ||
| if mesh.BoneWeights != nil { | ||
| pinner.Pin(mesh.BoneWeights) | ||
| } | ||
| // VboID of a new mesh should always be nil before uploading, but including this in case a mesh happens to have it set. | ||
| if mesh.VboID != nil { | ||
| pinner.Pin(mesh.VboID) | ||
| } | ||
|
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| cMesh := mesh.cptr() | ||
| C.UploadMesh(cMesh, C.bool(dynamic)) | ||
|
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| // Add new mesh VaoID to list | ||
| goManagedMeshIDs = append(goManagedMeshIDs, mesh.VaoID) | ||
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| pinner.Unpin() | ||
| } | ||
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| // UnloadMesh - Unload mesh from memory (RAM and/or VRAM) | ||
| func UnloadMesh(mesh *Mesh) { | ||
| // Check list of go-managed mesh IDs | ||
| if slices.Contains(goManagedMeshIDs, mesh.VaoID) { | ||
| // C.UnloadMesh() only needs to read the VaoID & VboID | ||
| // passing a temporary struct with all other fields nil makes it safe for the C code to call free() | ||
| tempMesh := Mesh{ | ||
| VaoID: mesh.VaoID, | ||
| VboID: mesh.VboID, | ||
| } | ||
| cmesh := tempMesh.cptr() | ||
| C.UnloadMesh(*cmesh) | ||
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| // remove mesh VaoID from list | ||
| goManagedMeshIDs = slices.DeleteFunc(goManagedMeshIDs, func(id uint32) bool { return id == mesh.VaoID }) | ||
| } else { | ||
| cmesh := mesh.cptr() | ||
| C.UnloadMesh(*cmesh) | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,69 @@ | ||
| //go:build !go1.21 | ||
| // +build !go1.21 | ||
|
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| package rl | ||
|
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| /* | ||
| #include "raylib.h" | ||
| #include <stdlib.h> | ||
| */ | ||
| import "C" | ||
|
|
||
| import ( | ||
| "runtime" | ||
|
|
||
| "golang.org/x/exp/slices" | ||
| ) | ||
|
|
||
| // List of VaoIDs of meshes created by calling UploadMesh() | ||
| // Used by UnloadMesh() to determine if mesh is go-managed or C-allocated | ||
| var goManagedMeshIDs = make([]uint32, 0) | ||
|
|
||
| // UploadMesh - Upload vertex data into a VAO (if supported) and VBO | ||
| func UploadMesh(mesh *Mesh, dynamic bool) { | ||
| // check if mesh has already been uploaded to prevent duplication | ||
| if mesh.VaoID != 0 { | ||
| TraceLog(LogWarning, "VAO: [ID %d] Trying to re-load an already loaded mesh", mesh.VaoID) | ||
| return | ||
| } | ||
|
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| defer runtime.KeepAlive(mesh.Vertices) | ||
| defer runtime.KeepAlive(mesh.Texcoords) | ||
| defer runtime.KeepAlive(mesh.Texcoords2) | ||
| defer runtime.KeepAlive(mesh.Normals) | ||
| defer runtime.KeepAlive(mesh.Tangents) | ||
| defer runtime.KeepAlive(mesh.Colors) | ||
| defer runtime.KeepAlive(mesh.Indices) | ||
| defer runtime.KeepAlive(mesh.AnimVertices) | ||
| defer runtime.KeepAlive(mesh.AnimNormals) | ||
| defer runtime.KeepAlive(mesh.BoneIds) | ||
| defer runtime.KeepAlive(mesh.BoneWeights) | ||
| defer runtime.KeepAlive(mesh.VboID) | ||
|
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| cMesh := mesh.cptr() | ||
| C.UploadMesh(cMesh, C.bool(dynamic)) | ||
|
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| // Add new mesh VaoID to list | ||
| goManagedMeshIDs = append(goManagedMeshIDs, mesh.VaoID) | ||
| } | ||
|
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| // UnloadMesh - Unload mesh from memory (RAM and/or VRAM) | ||
| func UnloadMesh(mesh *Mesh) { | ||
| // Check list of go-managed mesh IDs | ||
| if slices.Contains(goManagedMeshIDs, mesh.VaoID) { | ||
| // C.UnloadMesh() only needs to read the VaoID & VboID | ||
| // passing a temporary struct with all other fields nil makes it safe for the C code to call free() | ||
| tempMesh := Mesh{ | ||
| VaoID: mesh.VaoID, | ||
| VboID: mesh.VboID, | ||
| } | ||
| cmesh := tempMesh.cptr() | ||
| C.UnloadMesh(*cmesh) | ||
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| // remove mesh VaoID from list | ||
| goManagedMeshIDs = slices.DeleteFunc(goManagedMeshIDs, func(id uint32) bool { return id == mesh.VaoID }) | ||
| } else { | ||
| cmesh := mesh.cptr() | ||
| C.UnloadMesh(*cmesh) | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,4 +1,6 @@ | ||
| github.com/ebitengine/purego v0.7.1 h1:6/55d26lG3o9VCZX8lping+bZcmShseiqlh2bnUDiPA= | ||
| github.com/ebitengine/purego v0.7.1/go.mod h1:ah1In8AOtksoNK6yk5z1HTJeUkC1Ez4Wk2idgGslMwQ= | ||
| golang.org/x/exp v0.0.0-20240506185415-9bf2ced13842 h1:vr/HnozRka3pE4EsMEg1lgkXJkTFJCVUX+S/ZT6wYzM= | ||
| golang.org/x/exp v0.0.0-20240506185415-9bf2ced13842/go.mod h1:XtvwrStGgqGPLc4cjQfWqZHG1YFdYs6swckp8vpsjnc= | ||
| golang.org/x/sys v0.20.0 h1:Od9JTbYCk261bKm4M/mw7AklTlFYIa0bIp9BgSm1S8Y= | ||
| golang.org/x/sys v0.20.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA= |
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