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[diderot] Diff of /branches/pure-cfg/TODO
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Diff of /branches/pure-cfg/TODO

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revision 783, Thu Apr 7 23:44:08 2011 UTC revision 846, Mon Apr 18 18:38:03 2011 UTC
# Line 1  Line 1 
 ======================  
 BUGS =================  
 ======================  
   
 test/mip-cam.diderot:  
     // generated C code looks like "(float)p_ui_0--0.5e0f"  
     //real rayU = 2.0*camUmax*(real(ui) - -0.5)/real(imgResU) - camUmax;  
   
 test/vr-kcomp.diderot:  
     // HEY (scoping BUG): the strand parameters (e.g. ui, vi) ...  
   
 test/vr-kcomp.diderot:  
           // HEY (BUG) stabilize function not working  
           // setting rgba should be done there  
           rgba = [gray, gray, gray, 1.0-transp];  
   
 test/vr-lite-cam.diderot:  
 // HEY (BUG): these:  
 //   vec3 lightVspDir = [1.0, -0.0, 0.0];  
 //   vec3 lightVspDir = [1.0, 0.0, -0.0];  
 // work okay but this:  
 //   vec3 lightVspDir = [1.0, 0.0, 0.0]; ...  
   
 test/zslice2.diderot:  
 // but is this not valid syntax for creating field in one shot?  
 //field#2(3)[] F = (load("../data/zimg112.nrrd")) ⊛ bspln3;  
 // It is valid syntax, but there is a bug in the conversion from HighIL to MidIL  
   
 test/zslice2.diderot:  
 // HEY (bug) bspln5 leads to problems ...  
 //  uncaught exception Size [size]  
 //    raised at c-target/c-target.sml:47.15-47.19  
 //field#4(3)[] F = img ⊛ bspln5;  
   
1  ========================  ========================
2  SHORT TERM =============  (for curvature-based VR)  SHORT TERM =============  (for curvature-based VR)
3  ========================  ========================
4    
5  Outer products  For RGB color output of 2D transfer function (indexed by
6      syntax [DONE]  kappa1,kappa2), or for a 1D transfer function, will need
7      typechecking  something akin to convolution on vector images
     IL and codegen  
8    
9  Add M dot v, v dot M, and M dot N  IL support for higher-order tensor values (matrices, etc).
10        tensor construction [DONE]
11        tensor indexing [DONE]
12        tensor slicing
13        verify that hessians work correctly
14    
15  Identity matrix [DONE up to code generation]  Outer products [DONE]
16    
17  determinant ("det") for tensor[3,3]  Add M dot v, v dot M, and M dot N [DONE]
18    
19  trace [DONE]  Identity matrix [DONE]
20    
21  expand trace in mid to low translation  Zero tensor [DONE]
22    
23  extend norm (|exp|) to all tensor types  trace [DONE]
24    
25  extend normalize to all tensor types  extend norm (|exp|) to tensor[3,3] [DONE]
26    
27  Use ∇⊗ etc syntax  Matrix addition, subtraction, and scaling  [DONE]
28    
29    Use ∇⊗ etc. syntax
30      syntax [DONE]      syntax [DONE]
31      typechecking      typechecking
32      IL and codegen      IL and codegen
# Line 66  Line 37 
37          value construction: '{' e1 ',' … ',' en '}'          value construction: '{' e1 ',' … ',' en '}'
38          indexing: e '{' e '}'          indexing: e '{' e '}'
39    
40  IL support for higher-order tensor values (matrices, etc).  Infix dot product and cross product [DONE]
     tensor construction  
     tensor indexing and slicing  
     verify that hessians work correctly  
41    
42  Add type aliases for color types  lerp on scalars and vectors [DONE]
     rgb = real{3}  
     rgba = real{4}  
43    
44  stabilize {} code block  Infix "^" operator for pow() [DONE]
45    
46    ==============================
47    other SHORT TERM =============  (including needed for LIC)
48    ==============================
49    
50    determinant ("det") for tensor[3,3]
51    
52  Decide if we want to allow redefinitions of variables  Decide if we want to allow redefinitions of variables
53    (as in vr-lite-cam.diderot)    (as in vr-lite-cam.diderot)
54    
55  DONE:  extend norm (|exp|) to all tensor types
   Infix dot product and cross product  
   lerp on scalars and vectors  
56    
57  ==============================  extend normalize to all tensor types
 other SHORT TERM =============  (needed for LIC)  
 ==============================  
58    
59  vector fields: convolution on vector images  vector fields: convolution on vector images
60    
61    expand trace in mid to low translation
62    
63    value-numbering optimization
64    
65    Add type aliases for color types
66        rgb = real{3}
67        rgba = real{4}
68    
69  ==============================  ==============================
70  MEDIUM TERM ================== (needed for streamlines & tractography)  MEDIUM TERM ================== (needed for streamlines & tractography)
71  ==============================  ==============================
# Line 114  Line 90 
90    
91  spatial data structure that permits strands' queries of neighbors  spatial data structure that permits strands' queries of neighbors
92    
93    proper handling of stabilize method
94    
95    Add support for code like
96    
97            (F1 if x else F2)@pos
98    
99    This will require duplication of the continuation of the conditional (but we should only
100    duplicate over the live-range of the result of the conditional.
101    
102    ==============================
103    other MEDIUM TERM ============
104    ==============================
105    
106    want: warnings when D (and likely I) is declared as a
107    variable name (now get confusing error messages now)
108    
109    support for Python interop and GUI
110    
111  ==============================  ==============================
112  LONG TERM ====================  LONG TERM ====================
113  ==============================  ==============================
114    
115    Better handling of variables that determines the scope of a variable based on its actual use,
116    instead of where the user defined it.  So, for example, we should lift strand-invariant variables
117    to global scope.  Also prune out useless variables, which should include field variables after the
118    translation to mid-il.
119    
120  co- vs contra- index distinction  co- vs contra- index distinction
121    
122  add ":" for tensor dot product (contracts out two indices  add ":" for tensor dot product (contracts out two indices
# Line 134  Line 133 
133  Einstein summation notation  Einstein summation notation
134    
135  "tensor comprehension" (like list comprehension)  "tensor comprehension" (like list comprehension)
136    
137    Python/ctypes interface to run-timez
138    
139    ======================
140    BUGS =================
141    ======================
142    
143    test/mip-cam.diderot:
144        // generated C code looks like "(float)p_ui_0--0.5e0f"
145        //real rayU = 2.0*camUmax*(real(ui) - -0.5)/real(imgResU) - camUmax;
146    
147    test/vr-kcomp.diderot:
148        // HEY (scoping BUG): the strand parameters (e.g. ui, vi) ...
149    
150    test/zslice2.diderot:
151    // but is this not valid syntax for creating field in one shot?
152    //field#2(3)[] F = (load("../data/zimg112.nrrd")) ⊛ bspln3;
153    // It is valid syntax, but there is a bug in the conversion from HighIL to MidIL
154    
155    test/zslice2.diderot:
156    // HEY (bug) bspln5 leads to problems ...
157    //  uncaught exception Size [size]
158    //    raised at c-target/c-target.sml:47.15-47.19
159    //field#4(3)[] F = img ⊛ bspln5;
160    
161    

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