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[debug] Adds a COGL_DEBUG=matrices debug option

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This adds a COGL_DEBUG=matrices debug option that can be used to trace all
matrix manipulation done using the Cogl API.  This can be handy when you
break something in such a way that a trace is still comparable with a
previous working version since you can simply diff a log of the broken
version vs the working version to home in on the bug.
This commit is contained in:
Robert Bragg
2009-10-26 11:01:33 +00:00
parent 0a1db7c4d8
commit 2126bf60fd
5 changed files with 76 additions and 2 deletions
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5
cogl/cogl.c
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@ -39,6 +39,7 @@
#include "cogl-material-private.h"
#include "cogl-winsys.h"
#include "cogl-draw-buffer-private.h"
#include "cogl-matrix-private.h"
#if defined (HAVE_COGL_GLES2) || defined (HAVE_COGL_GLES)
#include "cogl-gles2-wrapper.h"
@ -1165,6 +1166,7 @@ cogl_get_modelview_matrix (CoglMatrix *matrix)
CoglMatrixStack *modelview_stack =
_cogl_draw_buffer_get_modelview_stack (_cogl_get_draw_buffer ());
_cogl_matrix_stack_get (modelview_stack, matrix);
_COGL_MATRIX_DEBUG_PRINT (matrix);
}
void
@ -1173,6 +1175,7 @@ cogl_set_modelview_matrix (CoglMatrix *matrix)
CoglMatrixStack *modelview_stack =
_cogl_draw_buffer_get_modelview_stack (_cogl_get_draw_buffer ());
_cogl_matrix_stack_set (modelview_stack, matrix);
_COGL_MATRIX_DEBUG_PRINT (matrix);
}
void
@ -1181,6 +1184,7 @@ cogl_get_projection_matrix (CoglMatrix *matrix)
CoglMatrixStack *projection_stack =
_cogl_draw_buffer_get_projection_stack (_cogl_get_draw_buffer ());
_cogl_matrix_stack_get (projection_stack, matrix);
_COGL_MATRIX_DEBUG_PRINT (matrix);
}
void
@ -1192,6 +1196,7 @@ cogl_set_projection_matrix (CoglMatrix *matrix)
/* FIXME: Update the inverse projection matrix!! Presumably use
* of clip planes must currently be broken if this API is used. */
_COGL_MATRIX_DEBUG_PRINT (matrix);
}
CoglClipStackState *