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2007-08-07 Matthew Allum <mallum@openedhand.com>
* clutter/clutter-fixed.c: * clutter/clutter-fixed.h: Add documentation. * clutter/cogl/gl/cogl.c: (cogl_perspective): Remove CFX_* shortened macros
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gl/cogl.c
12
gl/cogl.c
@ -453,7 +453,7 @@ cogl_perspective (ClutterFixed fovy,
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{
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ClutterFixed xmax, ymax;
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ClutterFixed x, y, c, d;
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ClutterFixed fovy_rad_half = CFX_MUL (fovy, CFX_PI) / 360;
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ClutterFixed fovy_rad_half = CLUTTER_FIXED_MUL (fovy, CFX_PI) / 360;
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GLfloat m[16];
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@ -468,14 +468,14 @@ cogl_perspective (ClutterFixed fovy,
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* 2) When working with small numbers, we are loosing significant
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* precision, hence we use clutter_qmulx() here, not the fast macro.
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*/
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ymax = clutter_qmulx (zNear, CFX_DIV (clutter_sinx (fovy_rad_half),
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ymax = clutter_qmulx (zNear, CLUTTER_FIXED_DIV (clutter_sinx (fovy_rad_half),
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clutter_cosx (fovy_rad_half)));
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xmax = clutter_qmulx (ymax, aspect);
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x = CFX_DIV (zNear, xmax);
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y = CFX_DIV (zNear, ymax);
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c = CFX_DIV (-(zFar + zNear), ( zFar - zNear));
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d = CFX_DIV (-(clutter_qmulx (2*zFar, zNear)), (zFar - zNear));
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x = CLUTTER_FIXED_DIV (zNear, xmax);
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y = CLUTTER_FIXED_DIV (zNear, ymax);
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c = CLUTTER_FIXED_DIV (-(zFar + zNear), ( zFar - zNear));
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d = CLUTTER_FIXED_DIV (-(clutter_qmulx (2*zFar, zNear)), (zFar - zNear));
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#define M(row,col) m[col*4+row]
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M(0,0) = CLUTTER_FIXED_TO_FLOAT (x);
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