(define-module (assimp assimp)
+ #:use-module (assimp low-level)
+ #:use-module (assimp low-level cimport)
+ #:use-module (assimp low-level color)
#:use-module (assimp low-level material)
#:use-module (assimp low-level mesh)
#:use-module (assimp low-level scene)
- #:use-module (ice-9 iconv)
- #:use-module (rnrs bytevectors)
+ #:use-module (assimp low-level types)
+ #:use-module (assimp low-level vector)
#:use-module (system foreign))
-(define libassimp (dynamic-link "libassimp"))
-
-(define aiImportFile
- (pointer->procedure '*
- (dynamic-func "aiImportFile" libassimp)
- (list '* unsigned-int)))
-
-
-;;; Type Generation
-
-(define-syntax define-type
- (lambda (x)
- (define (mk-string . args)
- (string-concatenate
- (map (lambda (a)
- (if (string? a)
- a
- (symbol->string (syntax->datum a))))
- args)))
- (define (mk-symbol . args)
- (datum->syntax x
- (string->symbol
- (apply mk-string args))))
- (syntax-case x ()
- ((_ name parser (field field-proc) ...)
- (with-syntax ((type? (mk-symbol #'name "?"))
- (wrap-type (mk-symbol "wrap-" #'name))
- (unwrap-type (mk-symbol "unwrap-" #'name))
- (output-string (mk-string "#<" #'name " ~x>"))
- (type-contents (mk-symbol #'name "-contents")))
- #'(begin
- (define-wrapped-pointer-type name
- type?
- wrap-type unwrap-type
- (lambda (x p)
- (format p output-string
- (pointer-address (unwrap-type x)))))
- (define (type-contents wrapped)
- (let ((unwrapped (unwrap-type wrapped)))
- (cond ((= (pointer-address unwrapped) 0)
- '())
- (else
- (filter
- (lambda (f)
- (not (null? (cdr f))))
- (list (cons 'field (field-proc unwrapped))
- ...))))))))))))
-
-(define (bv-uint-ref pointer index)
- (bytevector-uint-ref
- (pointer->bytevector pointer 4 index)
- 0
- (native-endianness)
- 4))
-
-(define (get-aiString index)
- (lambda (pointer)
- (let* ((length (bv-uint-ref pointer index))
- (data (pointer->bytevector pointer length (+ index 4))))
- (bytevector->string data (fluid-ref %default-port-encoding)))))
-
-(define* (get-pointer index #:optional wrap-proc)
- (lambda (pointer)
- (let ((p (bv-uint-ref pointer index)))
- (cond ((= p 0) '())
- (else
- (let ((p2 (make-pointer p)))
- (list
- (cond (wrap-proc (wrap-proc p2))
- (else p2)))))))))
-
-(define (get-array num-index root-index type)
- (lambda (pointer)
- (let ((num (bv-uint-ref pointer num-index))
- (rootp (make-pointer (bv-uint-ref pointer root-index))))
- (cond ((> num 0)
- (array->list
- (pointer->bytevector rootp num 0 type)))
- (else
- '())))))
-
-(define* (get-structs-array num-index root-index struct-size #:optional wrap-proc)
- (lambda (pointer)
- (let ((num (bv-uint-ref pointer num-index))
- (rootp (bv-uint-ref pointer root-index)))
- (let loop ((i (- num 1)))
- (cond ((< i 0)
- '())
- (else
- (let* ((p (make-pointer (+ rootp (* i struct-size))))
- (wp (if wrap-proc (wrap-proc p) p)))
- (cons wp (loop (- i 1))))))))))
-
-(define* (get-pointer-of-pointers num-index root-index #:optional wrap-proc)
- (lambda (pointer)
- (let* ((num (bv-uint-ref pointer num-index))
- (rootp (make-pointer (bv-uint-ref pointer root-index))))
- (let loop ((i 0))
- (cond ((= i num)
- '())
- (else
- (let* ((p (make-pointer (bv-uint-ref rootp (* 4 i))))
- (wp (if wrap-proc (wrap-proc p) p)))
- (cons wp (loop (+ i 1))))))))))
-
-(define-syntax define-conversion-type
- (lambda (x)
- (define (mk-string . args)
- (string-concatenate
- (map (lambda (a)
- (if (string? a)
- a
- (symbol->string (syntax->datum a))))
- args)))
- (define (mk-symbol . args)
- (datum->syntax x
- (string->symbol
- (apply mk-string args))))
- (syntax-case x (->)
- ((_ parser -> name (field-name field-proc) ...)
- (with-syntax ((type? (mk-symbol #'name "?"))
- (wrap-type (mk-symbol "wrap-" #'name))
- (unwrap-type (mk-symbol "unwrap-" #'name))
- (output-string (mk-string "#<" #'name " ~x>"))
- (type-contents (mk-symbol #'name "-contents"))
- (type-parse (mk-symbol #'name "-parse"))
- ((field-reader ...) (map (lambda (f) (mk-symbol #'name "-" (car f))) #'((field-name field-proc) ...))))
- #'(begin
- (define-wrapped-pointer-type name
- type?
- wrap-type unwrap-type
- (lambda (x p)
- (format p output-string
- (pointer-address (unwrap-type x)))))
- (define (type-parse wrapped)
- (let ((unwrapped (unwrap-type wrapped)))
- (cond ((= (pointer-address unwrapped) 0)
- '())
- (else
- (parser unwrapped)))))
- (define (type-contents wrapped)
- (let ((alist (type-parse wrapped)))
- (list (cons 'field-name (field-proc alist))
- ...)))
- (define (field-reader wrapped)
- (let ((alist (type-parse wrapped)))
- (field-proc alist)))
- ...))))))
-
-(define (field name)
- (lambda (alist)
- (assoc-ref alist name)))
-
-(define (get-element-address root-pointer offset)
- (make-pointer (+ (pointer-address root-pointer) offset)))
-
-(define* (array size-tag root-tag #:key (element-size 4) (element-proc bv-uint-ref))
- (lambda (alist)
- (let ((size (assoc-ref alist size-tag))
- (root (assoc-ref alist root-tag)))
- (cond ((= (pointer-address root) 0)
- '())
- (else
- (let loop ((i 0))
- (cond ((= i size)
- '())
- (else
- (cons (element-proc root (* element-size i))
- (loop (+ i 1)))))))))))
-
-(define (wrap proc wrap-proc)
- (define (make-wrap element)
- (let ((pointer
- (cond ((pointer? element)
- (if (= (pointer-address element) 0)
- #f
- element))
- ((= element 0)
- #f)
- (else
- (make-pointer element)))))
- (cond (pointer
- (wrap-proc pointer))
- (else
- #f))))
- (lambda (alist)
- (let ((res (proc alist)))
- (cond ((list? res)
- (map make-wrap res))
- (else
- (make-wrap res))))))
-
-(define (sized-string string-tag)
- (lambda (alist)
- (let ((s (assoc-ref alist string-tag)))
- (cond (s
- (bytevector->string
- (u8-list->bytevector (list-head (cadr s) (car s)))
- (fluid-ref %default-port-encoding)))
- (else
- #f)))))
-
;;; Scenes
-(define-conversion-type parse-aiScene -> scene
+(define-conversion-type parse-aiScene -> ai-scene
(flags (field 'mFlags))
- (root-node (wrap (field 'mRootNode) wrap-node))
- (meshes (wrap (array 'mNumMeshes 'mMeshes) wrap-mesh))
- (materials (wrap (array 'mNumMaterials 'mMaterials) wrap-material))
- (animations (array 'mNumAnimations 'mAnimations))
- (textures (array 'mNumTextures 'mTextures))
- (lights (array 'mNumLights 'mLights))
- (cameras (array 'mNumCameras 'mCameras)))
-
- (define (load-scene filename flags)
- (wrap-scene
- (aiImportFile (string->pointer filename)
- flags)))
-
-(export load-scene
- scene?
- scene-contents
- scene-flags
- scene-root-node
- scene-meshes
- scene-materials
- scene-animations
- scene-textures
- scene-lights
- scene-cameras)
+ (root-node (wrap (field 'mRootNode) wrap-ai-node))
+ (meshes (wrap (array (field 'mNumMeshes) (field 'mMeshes)) wrap-ai-mesh))
+ (materials (wrap (array (field 'mNumMaterials) (field 'mMaterials)) wrap-ai-material))
+ (animations (array (field 'mNumAnimations) (field 'mAnimations)))
+ (textures (array (field 'mNumTextures) (field 'mTextures)))
+ (lights (array (field 'mNumLights) (field 'mLights)))
+ (cameras (array (field 'mNumCameras) (field 'mCameras))))
+
+(export ai-scene?
+ ai-scene-contents
+ ai-scene-flags
+ ai-scene-root-node
+ ai-scene-meshes
+ ai-scene-materials
+ ai-scene-animations
+ ai-scene-textures
+ ai-scene-lights
+ ai-scene-cameras)
;;; Nodes
-(define-conversion-type parse-aiNode -> node
- (name (sized-string 'mName))
+(define-conversion-type parse-aiNode -> ai-node
+ (name (sized-string (field 'mName)))
(transformation (field 'mTransformation))
- (parent (wrap (field 'mParent) wrap-node))
- (children (wrap (array 'mNumChildren 'mChildren) wrap-node))
- (meshes (array 'mNumMeshes 'mMeshes)))
+ (parent (wrap (field 'mParent) wrap-ai-node))
+ (children (wrap (array (field 'mNumChildren) (field 'mChildren)) wrap-ai-node))
+ (meshes (array (field 'mNumMeshes) (field 'mMeshes))))
-(export node?
- node-contents
- node-name
- node-transformation
- node-parent
- node-children
- node-meshes)
+(export ai-node?
+ ai-node-contents
+ ai-node-name
+ ai-node-transformation
+ ai-node-parent
+ ai-node-children
+ ai-node-meshes)
;;; Meshes
-(define-conversion-type parse-aiMesh -> mesh
- (name (sized-string 'mName))
+(define-conversion-type parse-aiMesh -> ai-mesh
+ (name (sized-string (field 'mName)))
(primitive-types (field 'mPrimitiveTypes))
- (vertices (array 'mNumVertices 'mVertices #:element-proc get-element-address))
- (faces (wrap (array 'mNumFaces 'mFaces #:element-size 8 #:element-proc get-element-address) wrap-face))
- (normals (array 'mNumVertices 'mNormals #:element-size 12 #:element-proc get-element-address))
- (tangents (array 'mNumVertices 'mTangents #:element-size 12 #:element-proc get-element-address))
- (bitangents (array 'mNumVertices 'mBitangents #:element-size 12 #:element-proc get-element-address))
- (colors (field 'mColors))
- (texture-coords (field 'mTextureCoords))
+ (vertices (wrap
+ (array (field 'mNumVertices) (field 'mVertices) #:element-proc get-element-address)
+ wrap-ai-vector3d))
+ (faces (wrap
+ (array (field 'mNumFaces) (field 'mFaces) #:element-size 8 #:element-proc get-element-address)
+ wrap-ai-face))
+ (normals (wrap
+ (array (field 'mNumVertices) (field 'mNormals) #:element-size 12 #:element-proc get-element-address)
+ wrap-ai-vector3d))
+ (tangents (wrap
+ (array (field 'mNumVertices) (field 'mTangents) #:element-size 12 #:element-proc get-element-address)
+ wrap-ai-vector3d))
+ (bitangents (wrap
+ (array (field 'mNumVertices) (field 'mBitangents) #:element-size 12 #:element-proc get-element-address)
+ wrap-ai-vector3d))
+ (colors (map
+ (lambda (c)
+ (wrap
+ (array (field 'mNumVertices) c #:element-size 16 #:element-proc get-element-address)
+ wrap-ai-color4d))
+ (field 'mColors)))
+ (texture-coords (map
+ (lambda (tc)
+ (wrap
+ (array (field 'mNumVertices) tc #:element-size 12 #:element-proc get-element-address)
+ wrap-ai-vector3d))
+ (field 'mTextureCoords)))
(num-uv-components (field 'mNumUVComponents))
- (bones (array 'mNumBones 'mBones))
- (material-index (field 'mMaterialIndex))
-)
-
-(export mesh?
- mesh-contents
- mesh-name
- mesh-primitive-types
- mesh-vertices
- mesh-faces
- mesh-normals
- mesh-tangents
- mesh-bitangents
- mesh-colors
- mesh-texture-coords
- mesh-num-uv-components
- mesh-bones
- mesh-material-index)
+ (bones (wrap (array (field 'mNumBones) (field 'mBones)) wrap-ai-bone))
+ (material-index (field 'mMaterialIndex)))
+
+(export ai-mesh?
+ ai-mesh-contents
+ ai-mesh-name
+ ai-mesh-primitive-types
+ ai-mesh-vertices
+ ai-mesh-faces
+ ai-mesh-normals
+ ai-mesh-tangents
+ ai-mesh-bitangents
+ ai-mesh-colors
+ ai-mesh-texture-coords
+ ai-mesh-num-uv-components
+ ai-mesh-bones
+ ai-mesh-material-index)
;;; Materials
-(define-conversion-type parse-aiMaterial -> material
- (properties (array 'mNumProperties 'mProperties))
+(define-conversion-type parse-aiMaterial -> ai-material
+ (properties (array (field 'mNumProperties) (field 'mProperties)))
(num-allocated (field 'mNumAllocated)))
-(export material?
- material-contents
- material-properties
- material-num-allocated)
+(export ai-material?
+ ai-material-contents
+ ai-material-properties
+ ai-material-num-allocated)
;;; Faces
-(define-conversion-type parse-aiFace -> face
- (indices (array 'mNumIndices 'mIndices)))
+(define-conversion-type parse-aiFace -> ai-face
+ (indices (array (field 'mNumIndices) (field 'mIndices))))
+
+(export ai-face?
+ ai-face-contents
+ ai-face-indices)
+
+
+;;; Vectors
+
+(define-conversion-type parse-aiVector2D -> ai-vector2d
+ (x (field 'x))
+ (y (field 'y)))
+
+(export ai-vector2d?
+ ai-vector2d-contents
+ ai-vector2d-x
+ ai-vector2d-y)
+
+(define-conversion-type parse-aiVector3D -> ai-vector3d
+ (x (field 'x))
+ (y (field 'y))
+ (z (field 'z)))
+
+(export ai-vector3d?
+ ai-vector3d-contents
+ ai-vector3d-x
+ ai-vector3d-y
+ ai-vector3d-z)
+
+
+;;; Colors
+
+(define-conversion-type parse-aiColor4D -> ai-color4d
+ (r (field 'r))
+ (g (field 'g))
+ (b (field 'b))
+ (a (field 'a)))
+
+(export ai-color4d?
+ ai-color4d-contents
+ ai-color4d-r
+ ai-color4d-g
+ ai-color4d-b
+ ai-color4d-a)
+
+
+;;; Bones
+
+(define-conversion-type parse-aiBone -> ai-bone
+ (name (sized-string (field 'mName)))
+ (weights (wrap
+ (array (field 'mNumWeights) (field 'mWeights) #:element-size 8 #:element-proc get-element-address)
+ wrap-ai-vertex-weight))
+ (offset-matrix (field 'mOffsetMatrix)))
+
+(export ai-bone?
+ ai-bone-contents
+ ai-bone-name
+ ai-bone-weights
+ ai-bone-offset-matrix)
+
+
+;;; Weights
+
+(define-conversion-type parse-aiVertexWeight -> ai-vertex-weight
+ (vertex-id (field 'mVertexId))
+ (weight (field 'mWeight)))
+
+(export ai-vertex-weight?
+ ai-vertex-weight-contents
+ ai-vertex-weight-vertex-id
+ ai-vertex-weight-weight)
+
+
+;;; Functions
+
+(define-public (ai-import-file filename flags)
+ (wrap-ai-scene
+ (aiImportFile (string->pointer filename)
+ flags)))
-(export face?
- face-contents
- face-indices)
+(define-public (ai-multiply-matrix4 m1 m2)
+ (let ((cm1 (make-c-struct aiMatrix4x4-type m1))
+ (cm2 (make-c-struct aiMatrix4x4-type m2)))
+ (aiMultiplyMatrix4 cm1 cm2)
+ (parse-c-struct cm1 aiMatrix4x4-type)))
projects / guile-assimp.git / blobdiff