mesa: API and state for GL 3.1 primitive restart

6 files changed, 76 insertions, 0 deletions

diff --git a/src/mesa/main/enable.c b/src/mesa/main/enable.c
index d24564c353..72787226dc 100644
--- a/src/mesa/main/enable.c
+++ b/src/mesa/main/enable.c
@@ -990,6 +990,17 @@ _mesa_set_enable(GLcontext *ctx, GLenum cap, GLboolean state)
          break;
 #endif
 
+      /* GL 3.1 primitive restart */
+      case GL_PRIMITIVE_RESTART:
+	 if (ctx->VersionMajor * 10 + ctx->VersionMinor < 31) {
+            goto invalid_enum_error;
+         }
+         if (ctx->Array.PrimitiveRestart != state) {
+            FLUSH_VERTICES(ctx, _NEW_TRANSFORM);
+            ctx->Array.PrimitiveRestart = state;
+         }
+         break;
+
       default:
          goto invalid_enum_error;
    }
@@ -1509,6 +1520,13 @@ _mesa_IsEnabled( GLenum cap )
          return ctx->TransformFeedback.RasterDiscard;
 #endif
 
+      /* GL 3.1 primitive restart */
+      case GL_PRIMITIVE_RESTART:
+	 if (ctx->VersionMajor * 10 + ctx->VersionMinor < 31) {
+            goto invalid_enum_error;
+         }
+         return ctx->Array.PrimitiveRestart;
+
       default:
          goto invalid_enum_error;
    }
diff --git a/src/mesa/main/get.c b/src/mesa/main/get.c
index cb12737bd7..f89a798f1b 100644
--- a/src/mesa/main/get.c
+++ b/src/mesa/main/get.c
@@ -1954,6 +1954,12 @@ _mesa_GetBooleanv( GLenum pname, GLboolean *params )
       case GL_CONTEXT_FLAGS:
          params[0] = INT_TO_BOOLEAN(ctx->Const.ContextFlags);
          break;
+      case GL_PRIMITIVE_RESTART:
+         params[0] = ctx->Array.PrimitiveRestart;
+         break;
+      case GL_PRIMITIVE_RESTART_INDEX:
+         params[0] = INT_TO_BOOLEAN(ctx->Array.RestartIndex);
+         break;
       case GL_CONTEXT_PROFILE_MASK:
          params[0] = INT_TO_BOOLEAN(ctx->Const.ProfileMask);
          break;
@@ -3856,6 +3862,12 @@ _mesa_GetFloatv( GLenum pname, GLfloat *params )
       case GL_CONTEXT_FLAGS:
          params[0] = (GLfloat)(ctx->Const.ContextFlags);
          break;
+      case GL_PRIMITIVE_RESTART:
+         params[0] = BOOLEAN_TO_FLOAT(ctx->Array.PrimitiveRestart);
+         break;
+      case GL_PRIMITIVE_RESTART_INDEX:
+         params[0] = (GLfloat)(ctx->Array.RestartIndex);
+         break;
       case GL_CONTEXT_PROFILE_MASK:
          params[0] = (GLfloat)(ctx->Const.ProfileMask);
          break;
@@ -5758,6 +5770,12 @@ _mesa_GetIntegerv( GLenum pname, GLint *params )
       case GL_CONTEXT_FLAGS:
          params[0] = ctx->Const.ContextFlags;
          break;
+      case GL_PRIMITIVE_RESTART:
+         params[0] = BOOLEAN_TO_INT(ctx->Array.PrimitiveRestart);
+         break;
+      case GL_PRIMITIVE_RESTART_INDEX:
+         params[0] = ctx->Array.RestartIndex;
+         break;
       case GL_CONTEXT_PROFILE_MASK:
          params[0] = ctx->Const.ProfileMask;
          break;
@@ -7661,6 +7679,12 @@ _mesa_GetInteger64v( GLenum pname, GLint64 *params )
       case GL_CONTEXT_FLAGS:
          params[0] = (GLint64)(ctx->Const.ContextFlags);
          break;
+      case GL_PRIMITIVE_RESTART:
+         params[0] = BOOLEAN_TO_INT64(ctx->Array.PrimitiveRestart);
+         break;
+      case GL_PRIMITIVE_RESTART_INDEX:
+         params[0] = (GLint64)(ctx->Array.RestartIndex);
+         break;
       case GL_CONTEXT_PROFILE_MASK:
          params[0] = (GLint64)(ctx->Const.ProfileMask);
          break;
diff --git a/src/mesa/main/get_gen.py b/src/mesa/main/get_gen.py
index 63b64a97a9..0279ec9d1d 100644
--- a/src/mesa/main/get_gen.py
+++ b/src/mesa/main/get_gen.py
@@ -1145,6 +1145,12 @@ StateVars = [
 	( "GL_MINOR_VERSION", GLint, ["ctx->VersionMinor"], "", NoState, NoExt ),
 	( "GL_CONTEXT_FLAGS", GLint, ["ctx->Const.ContextFlags"], "", NoState, NoExt ),
 
+    # GL 3.1
+    ( "GL_PRIMITIVE_RESTART", GLboolean,
+      ["ctx->Array.PrimitiveRestart"], "", NoState, NoExt ),
+    ( "GL_PRIMITIVE_RESTART_INDEX", GLint,
+      ["ctx->Array.RestartIndex"], "", NoState, NoExt ),
+ 
 	# GL 3.2
 	( "GL_CONTEXT_PROFILE_MASK", GLint, ["ctx->Const.ProfileMask"], "",
 	  NoState, NoExt )
diff --git a/src/mesa/main/mtypes.h b/src/mesa/main/mtypes.h
index a980405f01..349d5f51e6 100644
--- a/src/mesa/main/mtypes.h
+++ b/src/mesa/main/mtypes.h
@@ -1547,6 +1547,10 @@ struct gl_array_attrib
    GLuint LockFirst;            /**< GL_EXT_compiled_vertex_array */
    GLuint LockCount;            /**< GL_EXT_compiled_vertex_array */
 
+   /** GL 3.1 (slightly different from GL_NV_primitive_restart) */
+   GLboolean PrimitiveRestart;
+   GLuint RestartIndex;
+
    GLbitfield NewState;		/**< mask of _NEW_ARRAY_* values */
 
 #if FEATURE_ARB_vertex_buffer_object
diff --git a/src/mesa/main/varray.c b/src/mesa/main/varray.c
index b4128f84d8..5f255b39b7 100644
--- a/src/mesa/main/varray.c
+++ b/src/mesa/main/varray.c
@@ -1054,6 +1054,27 @@ _mesa_MultiModeDrawElementsIBM( const GLenum * mode, const GLsizei * count,
 
 
 /**
+ * GL 3.1 glPrimitiveRestartIndex().
+ */
+void GLAPIENTRY
+_mesa_PrimitiveRestartIndex(GLuint index)
+{
+   GET_CURRENT_CONTEXT(ctx);
+
+   if (ctx->VersionMajor * 10 + ctx->VersionMinor < 31) {
+      _mesa_error(ctx, GL_INVALID_OPERATION, "glPrimitiveRestartIndex()");
+      return;
+   }
+
+   ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
+
+   FLUSH_VERTICES(ctx, _NEW_TRANSFORM);
+
+   ctx->Array.RestartIndex = index;
+}
+
+
+/**
  * Copy one client vertex array to another.
  */
 void
diff --git a/src/mesa/main/varray.h b/src/mesa/main/varray.h
index ef790c504e..b7c3e11674 100644
--- a/src/mesa/main/varray.h
+++ b/src/mesa/main/varray.h
@@ -174,6 +174,9 @@ _mesa_DrawRangeElementsBaseVertex(GLenum mode, GLuint start, GLuint end,
 				  const GLvoid *indices,
 				  GLint basevertex);
 
+extern void GLAPIENTRY
+_mesa_PrimitiveRestartIndex(GLuint index);
+
 
 extern void
 _mesa_copy_client_array(GLcontext *ctx,