mesa/main: Make FEATURE_histogram follow feature conventions.

As shown in mfeatures.h, this allows users of histogram.h to work without
knowing if the feature is available.

4 files changed, 35 insertions, 27 deletions

diff --git a/src/mesa/main/api_exec.c b/src/mesa/main/api_exec.c
index b363d4340ea..6b529db5ec2 100644
--- a/src/mesa/main/api_exec.c
+++ b/src/mesa/main/api_exec.c
@@ -76,9 +76,7 @@
 #include "ffvertex_prog.h"
 #include "framebuffer.h"
 #include "hint.h"
-#if FEATURE_histogram
 #include "histogram.h"
-#endif
 #include "imports.h"
 #include "light.h"
 #include "lines.h"
@@ -375,18 +373,7 @@ _mesa_init_exec_table(struct _glapi_table *exec)
 
    _mesa_init_colortable_dispatch(exec);
    _mesa_init_convolve_dispatch(exec);
-#if FEATURE_histogram
-   SET_GetHistogram(exec, _mesa_GetHistogram);
-   SET_GetHistogramParameterfv(exec, _mesa_GetHistogramParameterfv);
-   SET_GetHistogramParameteriv(exec, _mesa_GetHistogramParameteriv);
-   SET_GetMinmax(exec, _mesa_GetMinmax);
-   SET_GetMinmaxParameterfv(exec, _mesa_GetMinmaxParameterfv);
-   SET_GetMinmaxParameteriv(exec, _mesa_GetMinmaxParameteriv);
-   SET_Histogram(exec, _mesa_Histogram);
-   SET_Minmax(exec, _mesa_Minmax);
-   SET_ResetHistogram(exec, _mesa_ResetHistogram);
-   SET_ResetMinmax(exec, _mesa_ResetMinmax);
-#endif
+   _mesa_init_histogram_dispatch(exec);
 
    /* OpenGL 2.0 */
    SET_StencilFuncSeparate(exec, _mesa_StencilFuncSeparate);
diff --git a/src/mesa/main/context.c b/src/mesa/main/context.c
index 53a21ba4f57..a546e37b5f6 100644
--- a/src/mesa/main/context.c
+++ b/src/mesa/main/context.c
@@ -106,9 +106,7 @@
 #include "fog.h"
 #include "framebuffer.h"
 #include "get.h"
-#if FEATURE_histogram
 #include "histogram.h"
-#endif
 #include "hint.h"
 #include "hash.h"
 #include "light.h"
@@ -693,9 +691,7 @@ init_attrib_groups(GLcontext *ctx)
    ctx->RenderMode = GL_RENDER;
 #endif
    _mesa_init_fog( ctx );
-#if FEATURE_histogram
    _mesa_init_histogram( ctx );
-#endif
    _mesa_init_hint( ctx );
    _mesa_init_line( ctx );
    _mesa_init_lighting( ctx );
diff --git a/src/mesa/main/histogram.c b/src/mesa/main/histogram.c
index ceb0d5a6a86..3632adc03ec 100644
--- a/src/mesa/main/histogram.c
+++ b/src/mesa/main/histogram.c
@@ -29,8 +29,11 @@
 #include "context.h"
 #include "image.h"
 #include "histogram.h"
+#include "glapi/dispatch.h"
 
 
+#if FEATURE_histogram
+
 
 /*
  * XXX the packed pixel formats haven't been tested.
@@ -1043,6 +1046,24 @@ _mesa_ResetMinmax(GLenum target)
 }
 
 
+void
+_mesa_init_histogram_dispatch(struct _glapi_table *disp)
+{
+   SET_GetHistogram(disp, _mesa_GetHistogram);
+   SET_GetHistogramParameterfv(disp, _mesa_GetHistogramParameterfv);
+   SET_GetHistogramParameteriv(disp, _mesa_GetHistogramParameteriv);
+   SET_GetMinmax(disp, _mesa_GetMinmax);
+   SET_GetMinmaxParameterfv(disp, _mesa_GetMinmaxParameterfv);
+   SET_GetMinmaxParameteriv(disp, _mesa_GetMinmaxParameteriv);
+   SET_Histogram(disp, _mesa_Histogram);
+   SET_Minmax(disp, _mesa_Minmax);
+   SET_ResetHistogram(disp, _mesa_ResetHistogram);
+   SET_ResetMinmax(disp, _mesa_ResetMinmax);
+}
+
+
+#endif /* FEATURE_histogram */
+
 
 /**********************************************************************/
 /*****                      Initialization                        *****/
diff --git a/src/mesa/main/histogram.h b/src/mesa/main/histogram.h
index 367e9b11ba1..ce3246baf40 100644
--- a/src/mesa/main/histogram.h
+++ b/src/mesa/main/histogram.h
@@ -36,10 +36,9 @@
 #ifndef HISTOGRAM_H
 #define HISTOGRAM_H
 
-#include "glheader.h"
-#include "mtypes.h"
+#include "main/mtypes.h"
 
-#if _HAVE_FULL_GL
+#if FEATURE_histogram
 
 extern void GLAPIENTRY 
 _mesa_GetMinmax(GLenum target, GLboolean reset, GLenum format, GLenum types, GLvoid *values);
@@ -71,13 +70,18 @@ _mesa_ResetHistogram(GLenum target);
 extern void GLAPIENTRY 
 _mesa_ResetMinmax(GLenum target);
 
-extern void _mesa_init_histogram( GLcontext * ctx );
+extern void
+_mesa_init_histogram_dispatch(struct _glapi_table *disp);
+
+#else /* FEATURE_histogram */
 
-#else
+static INLINE void
+_mesa_init_histogram_dispatch(struct _glapi_table *disp)
+{
+}
 
-/** No-op */
-#define _mesa_init_histogram( c ) ((void) 0)
+#endif /* FEATURE_histogram */
 
-#endif
+extern void _mesa_init_histogram( GLcontext * ctx );
 
-#endif
+#endif /* HISTOGRAM_H */