Demos (master): glsl/gsraytrace: Use __LINE__ macro to set line numbers in GLSL source strings.

[Kenneth Graunke]

Module: Demos
Branch: master
Commit: 008dd254175c6f3e46e77c4ad533dfdd87f7d957
URL:    http://cgit.freedesktop.org/mesa/demos/commit/?id=008dd254175c6f3e46e77c4ad533dfdd87f7d957

Author: Fabian Bieler <fabianbieler at fastmail.fm>
Date:   Wed Feb  5 22:07:43 2014 +0100

glsl/gsraytrace: Use __LINE__ macro to set line numbers in GLSL source strings.

The hardcoded numbers are a few lines off at the moment.
Keeping track of the numbers through further modifications is inconvenient.
The __LINE__ "constant" takes care of this automatically.

v2: (by Kenneth Graunke) Don't specify the source string number
    (caught by Ian Romanick).

Signed-off-by: Fabian Bieler <fabianbieler at fastmail.fm>
Reviewed-by: Kenneth Graunke <kenneth at whitecape.org>

---

 src/glsl/gsraytrace.cpp |   10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/src/glsl/gsraytrace.cpp b/src/glsl/gsraytrace.cpp
index 62a584d..c21c667 100644
--- a/src/glsl/gsraytrace.cpp
+++ b/src/glsl/gsraytrace.cpp
@@ -37,6 +37,10 @@
 // TODO: use GL_EXT_transform_feedback or GL3 equivalent
 // TODO: port to piglit too
 
+#define STRINGIFY_(x) #x
+#define STRINGIFY(x) STRINGIFY_(x)
+#define S__LINE__ STRINGIFY(__LINE__)
+
 static const float INF=9999.9F;
 
 static int Win;
@@ -67,7 +71,7 @@ float rot[9] = {1,0,0,  0,1,0,   0,0,1};
 static const char* vsSource =
 "                                                                  \n"
 "#version 120                                                      \n"
-"#line 63 63                                                       \n"
+"#line " S__LINE__ "\n"
 "#define SHADOWS                                                   \n"
 "#define RECURSION                                                 \n"
 "                                                                  \n"
@@ -249,7 +253,7 @@ static const char* vsSource =
 
 static const char* gsSource = 
 "#version 120                                                             \n"
-"#line 245 245                                                            \n"
+"#line " S__LINE__ "\n"
 "#extension GL_ARB_geometry_shader4: require                              \n"
 "                                                                         \n"
 "#define SHADOWS                                                          \n"
@@ -388,7 +392,7 @@ static const char* gsSource =
 
 static const char* fsSource = 
 "#version 120                                                             \n"
-"#line 384 384                                                            \n"
+"#line " S__LINE__ "\n"
 "                                                                         \n"
 "#define SHADOWS                                                          \n"
 "#define RECURSION                                                        \n"