X-Git-Url: https://git.jsancho.org/?p=guile-assimp.git;a=blobdiff_plain;f=assimp.scm;fp=assimp.scm;h=11a3d091d67188be4b36ee003c546aa3bc1d2ca6;hp=0000000000000000000000000000000000000000;hb=9c753299c5306a5f896a2ec582221b341fc80a93;hpb=d90f35ebd1816b818700badf108882040e82c5cb

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+;;; guile-assimp, foreign interface to libassimp
+;;; Copyright (C) 2014 by Javier Sancho Fernandez <jsf at jsancho dot org>
+;;;
+;;; This program is free software: you can redistribute it and/or modify
+;;; it under the terms of the GNU General Public License as published by
+;;; the Free Software Foundation, either version 3 of the License, or
+;;; (at your option) any later version.
+;;;
+;;; This program is distributed in the hope that it will be useful,
+;;; but WITHOUT ANY WARRANTY; without even the implied warranty of
+;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+;;; GNU General Public License for more details.
+;;;
+;;; You should have received a copy of the GNU General Public License
+;;; along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+
+(define-module (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 matrix)
+  #:use-module (assimp low-level mesh)
+  #:use-module (assimp low-level postprocess)
+  #:use-module (assimp low-level scene)
+  #:use-module (assimp low-level types)
+  #:use-module (assimp low-level vector)
+  #:use-module (system foreign)
+  #:export (ai-import-file
+	    ai-release-import
+	    ai-attach-predefined-log-stream
+	    ai-transform-vec-by-matrix4
+	    ai-multiply-matrix3
+	    ai-multiply-matrix4
+	    ai-identity-matrix3
+	    ai-identity-matrix4
+	    ai-transpose-matrix3
+	    ai-transpose-matrix4)
+  #:re-export (ai-material-key
+	       ai-process-steps
+	       ai-process-convert-to-left-handed
+	       ai-process-preset-target-realtime-fast
+	       ai-process-preset-target-realtime-quality
+	       ai-process-preset-target-realtime-max-quality
+	       ai-default-log-stream
+	       (aiDetachAllLogStreams . ai-detach-all-log-streams)))
+
+
+;;; Scenes
+
+(define-conversion-type parse-aiScene -> ai-scene
+  (flags (field 'mFlags))
+  (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 -> ai-node
+  (name (sized-string (field 'mName)))
+  (transformation (wrap (parse-aiMatrix4x4 (field 'mTransformation) #:reverse #t) wrap-ai-matrix4x4))
+  (parent (wrap (field 'mParent) wrap-ai-node))
+  (children (wrap (array (field 'mNumChildren) (field 'mChildren)) wrap-ai-node))
+  (meshes (array (field 'mNumMeshes) (field 'mMeshes))))
+
+(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 -> ai-mesh
+  (name (sized-string (field 'mName)))
+  (primitive-types (field 'mPrimitiveTypes))
+  (vertices (wrap
+	     (array (field 'mNumVertices) (field 'mVertices) #:element-size 12 #: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 (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 -> ai-material
+  (properties (array (field 'mNumProperties) (field 'mProperties)))
+  (num-allocated (field 'mNumAllocated)))
+
+(export ai-material?
+	ai-material-contents
+	ai-material-properties
+	ai-material-num-allocated)
+
+
+(define-public (ai-get-material-color mat color-type)
+  (let ((pmat (unwrap-ai-material mat))
+	(pkey (string->pointer (car color-type)))
+	(type (cadr color-type))
+	(index (caddr color-type))
+	(pout (parse-aiColor4D (make-list 4 0) #:reverse #t)))
+    (let ((res (aiGetMaterialColor pmat pkey type index pout)))
+      (if (< res 0)
+	  res
+	  (wrap-ai-color4d pout)))))
+
+(define-public (ai-get-material-float-array mat color-type max)
+  (let ((pmat (unwrap-ai-material mat))
+	(pkey (string->pointer (car color-type)))
+	(type (cadr color-type))
+	(index (caddr color-type))
+	(pout (bytevector->pointer (list->f32vector (make-list max 0))))
+	(pmax (bytevector->pointer (list->u32vector (list max)))))
+    (let ((res (aiGetMaterialFloatArray pmat pkey type index pout pmax)))
+      (if (< res 0)
+	  res
+	  (f32vector->list (pointer->bytevector pout max 0 'f32))))))
+
+(define-public (ai-get-material-integer-array mat color-type max)
+  (let ((pmat (unwrap-ai-material mat))
+	(pkey (string->pointer (car color-type)))
+	(type (cadr color-type))
+	(index (caddr color-type))
+	(pout (bytevector->pointer (list->s32vector (make-list max 0))))
+	(pmax (bytevector->pointer (list->u32vector (list max)))))
+    (let ((res (aiGetMaterialIntegerArray pmat pkey type index pout pmax)))
+      (if (< res 0)
+	  res
+	  (s32vector->list (pointer->bytevector pout max 0 's32))))))
+
+
+;;; Faces
+
+(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)
+
+
+;;; Matrixes
+
+(define-conversion-type parse-aiMatrix3x3 -> ai-matrix3x3
+  (a1 (field 'a1))
+  (a2 (field 'a2))
+  (a3 (field 'a3))
+  (b1 (field 'b1))
+  (b2 (field 'b2))
+  (b3 (field 'b3))
+  (c1 (field 'c1))
+  (c2 (field 'c2))
+  (c3 (field 'c3)))
+
+(export ai-matrix3x3?
+	ai-matrix3x3-contents
+	ai-matrix3x3-a1
+	ai-matrix3x3-a2
+	ai-matrix3x3-a3
+	ai-matrix3x3-b1
+	ai-matrix3x3-b2
+	ai-matrix3x3-b3
+	ai-matrix3x3-c1
+	ai-matrix3x3-c2
+	ai-matrix3x3-c3)
+
+(define-conversion-type parse-aiMatrix4x4 -> ai-matrix4x4
+  (a1 (field 'a1))
+  (a2 (field 'a2))
+  (a3 (field 'a3))
+  (a4 (field 'a4))
+  (b1 (field 'b1))
+  (b2 (field 'b2))
+  (b3 (field 'b3))
+  (b4 (field 'b4))
+  (c1 (field 'c1))
+  (c2 (field 'c2))
+  (c3 (field 'c3))
+  (c4 (field 'c4))
+  (d1 (field 'd1))
+  (d2 (field 'd2))
+  (d3 (field 'd3))
+  (d4 (field 'd4)))
+
+(export ai-matrix4x4?
+	ai-matrix4x4-contents
+	ai-matrix4x4-a1
+	ai-matrix4x4-a2
+	ai-matrix4x4-a3
+	ai-matrix4x4-a4
+	ai-matrix4x4-b1
+	ai-matrix4x4-b2
+	ai-matrix4x4-b3
+	ai-matrix4x4-b4
+	ai-matrix4x4-c1
+	ai-matrix4x4-c2
+	ai-matrix4x4-c3
+	ai-matrix4x4-c4
+	ai-matrix4x4-d1
+	ai-matrix4x4-d2
+	ai-matrix4x4-d3
+	ai-matrix4x4-d4)
+
+
+;;; 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 (wrap (parse-aiMatrix4x4 (field 'mOffsetMatrix) #:reverse #t) wrap-ai-matrix4x4)))
+
+(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 (ai-import-file filename flags)
+  (wrap-ai-scene
+   (aiImportFile (string->pointer filename)
+		 flags)))
+
+(define (ai-release-import scene)
+  (aiReleaseImport (unwrap-ai-scene scene)))
+
+(define* (ai-attach-predefined-log-stream type #:optional file)
+  (aiAttachLogStream
+   (aiGetPredefinedLogStream
+    type
+    (if file
+	(string->pointer file)
+	%null-pointer))))
+
+(define (ai-transform-vec-by-matrix4 vec mat)
+  (let ((cvec (parse-aiVector3D (map cdr (ai-vector3d-contents vec)) #:reverse #t))
+	(cmat (parse-aiMatrix4x4 (map cdr (ai-matrix4x4-contents mat)) #:reverse #t)))
+    (aiTransformVecByMatrix4 cvec cmat)
+    (wrap-ai-vector3d cvec)))
+
+(define (ai-multiply-matrix3 m1 m2)
+  (let ((cm1 (parse-aiMatrix3x3 (map cdr (ai-matrix3x3-contents m1)) #:reverse #t))
+	(cm2 (parse-aiMatrix3x3 (map cdr (ai-matrix3x3-contents m2)) #:reverse #t)))
+    (aiMultiplyMatrix3 cm1 cm2)
+    (wrap-ai-matrix3x3 cm1)))
+
+(define (ai-multiply-matrix4 m1 m2)
+  (let ((cm1 (parse-aiMatrix4x4 (map cdr (ai-matrix4x4-contents m1)) #:reverse #t))
+	(cm2 (parse-aiMatrix4x4 (map cdr (ai-matrix4x4-contents m2)) #:reverse #t)))
+    (aiMultiplyMatrix4 cm1 cm2)
+    (wrap-ai-matrix4x4 cm1)))
+
+(define (ai-identity-matrix3)
+  (let ((cmat (parse-aiMatrix3x3 (make-list 9 0) #:reverse #t)))
+    (aiIdentityMatrix3 cmat)
+    (wrap-ai-matrix3x3 cmat)))
+
+(define (ai-identity-matrix4)
+  (let ((cmat (parse-aiMatrix4x4 (make-list 16 0) #:reverse #t)))
+    (aiIdentityMatrix4 cmat)
+    (wrap-ai-matrix4x4 cmat)))
+
+(define (ai-transpose-matrix3 mat)
+  (let ((cmat (parse-aiMatrix3x3 (map cdr (ai-matrix3x3-contents mat)) #:reverse #t)))
+    (aiTransposeMatrix3 cmat)
+    (wrap-ai-matrix3x3 cmat)))
+
+(define (ai-transpose-matrix4 mat)
+  (let ((cmat (parse-aiMatrix4x4 (map cdr (ai-matrix4x4-contents mat)) #:reverse #t)))
+    (aiTransposeMatrix4 cmat)
+    (wrap-ai-matrix4x4 cmat)))