Streamline the error path in VertexAttrib functions. Makes things

slightly easier for codegen.

2 files changed, 79 insertions, 55 deletions

diff --git a/src/mesa/tnl/t_context.h b/src/mesa/tnl/t_context.h
index 0911101c753..1293db3bf3f 100644
--- a/src/mesa/tnl/t_context.h
+++ b/src/mesa/tnl/t_context.h
@@ -248,6 +248,8 @@ struct tnl_copied_vtx {
 
 #define VERT_BUFFER_SIZE 2048	/* 8kbytes */
 
+#define ERROR_ATTRIB _TNL_ATTRIB_MAX /* error path for t_vtx_api.c */
+
 typedef void (*attrfv_func)( const GLfloat * );
 
 /* The assembly of vertices in immediate mode is separated from
@@ -267,7 +269,7 @@ struct tnl_vtx {
    GLfloat *current[_TNL_ATTRIB_MAX]; /* points into ctx->Current, etc */
    GLuint counter, initial_counter;
    struct tnl_copied_vtx copied;
-   attrfv_func tabfv[_TNL_ATTRIB_MAX][4];
+   attrfv_func tabfv[_TNL_ATTRIB_MAX+1][4]; /* +1 for ERROR_ATTRIB */
    struct tnl_eval eval;
    GLboolean *edgeflag_tmp;
    GLboolean have_materials;
diff --git a/src/mesa/tnl/t_vtx_api.c b/src/mesa/tnl/t_vtx_api.c
index a9a1c5bd5f8..4f07e2cc7e2 100644
--- a/src/mesa/tnl/t_vtx_api.c
+++ b/src/mesa/tnl/t_vtx_api.c
@@ -97,6 +97,9 @@ static void _tnl_wrap_buffers( GLcontext *ctx )
 }
 
 
+/* Deal with buffer wrapping where provoked by the vertex buffer
+ * filling up, as opposed to upgrade_vertex().
+ */
 static void _tnl_wrap_filled_vertex( GLcontext *ctx )
 {
    TNLcontext *tnl = TNL_CONTEXT(ctx);
@@ -451,6 +454,24 @@ ATTRS( 13 )
 ATTRS( 14 )
 ATTRS( 15 )
 
+
+static void error_attrib( const GLfloat *unused )
+{
+   GET_CURRENT_CONTEXT( ctx );
+   (void) unused;
+   _mesa_error( ctx, GL_INVALID_ENUM, "glVertexAttrib" );
+}   
+
+static void init_error_attrib( TNLcontext *tnl )
+{
+   tnl->vtx.tabfv[ERROR_ATTRIB][0] = error_attrib;
+   tnl->vtx.tabfv[ERROR_ATTRIB][1] = error_attrib;
+   tnl->vtx.tabfv[ERROR_ATTRIB][2] = error_attrib;
+   tnl->vtx.tabfv[ERROR_ATTRIB][3] = error_attrib;
+}
+
+
+
 static void init_attrfv( TNLcontext *tnl )
 {   
    if (tnl->vtx.vertex_size) {
@@ -472,6 +493,7 @@ static void init_attrfv( TNLcontext *tnl )
       init_13( tnl );
       init_14( tnl );
       init_15( tnl );
+      init_error_attrib( tnl );
 
       for (i = 0 ; i < _TNL_ATTRIB_MAX ; i++) 
 	 tnl->vtx.attrsz[i] = 0;
@@ -545,7 +567,8 @@ static void GLAPIENTRY _tnl_Vertex3fv( const GLfloat *v )
    DISPATCH_ATTR3FV( _TNL_ATTRIB_POS, v );
 }
 
-static void GLAPIENTRY _tnl_Vertex4f( GLfloat x, GLfloat y, GLfloat z, GLfloat w )
+static void GLAPIENTRY _tnl_Vertex4f( GLfloat x, GLfloat y, GLfloat z, 
+				      GLfloat w )
 {
    DISPATCH_ATTR4F( _TNL_ATTRIB_POS, x, y, z, w );
 }
@@ -585,7 +608,8 @@ static void GLAPIENTRY _tnl_TexCoord3fv( const GLfloat *v )
    DISPATCH_ATTR3FV( _TNL_ATTRIB_TEX0, v );
 }
 
-static void GLAPIENTRY _tnl_TexCoord4f( GLfloat x, GLfloat y, GLfloat z, GLfloat w )
+static void GLAPIENTRY _tnl_TexCoord4f( GLfloat x, GLfloat y, GLfloat z,
+					GLfloat w )
 {
    DISPATCH_ATTR4F( _TNL_ATTRIB_TEX0, x, y, z, w );
 }
@@ -625,7 +649,8 @@ static void GLAPIENTRY _tnl_Color3fv( const GLfloat *v )
    DISPATCH_ATTR3FV( _TNL_ATTRIB_COLOR0, v );
 }
 
-static void GLAPIENTRY _tnl_Color4f( GLfloat x, GLfloat y, GLfloat z, GLfloat w )
+static void GLAPIENTRY _tnl_Color4f( GLfloat x, GLfloat y, GLfloat z, 
+				     GLfloat w )
 {
    DISPATCH_ATTR4F( _TNL_ATTRIB_COLOR0, x, y, z, w );
 }
@@ -635,7 +660,8 @@ static void GLAPIENTRY _tnl_Color4fv( const GLfloat *v )
    DISPATCH_ATTR4FV( _TNL_ATTRIB_COLOR0, v );
 }
 
-static void GLAPIENTRY _tnl_SecondaryColor3fEXT( GLfloat x, GLfloat y, GLfloat z )
+static void GLAPIENTRY _tnl_SecondaryColor3fEXT( GLfloat x, GLfloat y, 
+						 GLfloat z )
 {
    DISPATCH_ATTR3F( _TNL_ATTRIB_COLOR1, x, y, z );
 }
@@ -651,45 +677,51 @@ static void GLAPIENTRY _tnl_MultiTexCoord1f( GLenum target, GLfloat x  )
    DISPATCH_ATTR1F( attr, x );
 }
 
-static void GLAPIENTRY _tnl_MultiTexCoord1fv( GLenum target, const GLfloat *v )
+static void GLAPIENTRY _tnl_MultiTexCoord1fv( GLenum target,
+					      const GLfloat *v )
 {
    GLuint attr = (target & 0x7) + _TNL_ATTRIB_TEX0;
    DISPATCH_ATTR1FV( attr, v );
 }
 
-static void GLAPIENTRY _tnl_MultiTexCoord2f( GLenum target, GLfloat x, GLfloat y )
+static void GLAPIENTRY _tnl_MultiTexCoord2f( GLenum target, GLfloat x, 
+					     GLfloat y )
 {
    GLuint attr = (target & 0x7) + _TNL_ATTRIB_TEX0;
    DISPATCH_ATTR2F( attr, x, y );
 }
 
-static void GLAPIENTRY _tnl_MultiTexCoord2fv( GLenum target, const GLfloat *v )
+static void GLAPIENTRY _tnl_MultiTexCoord2fv( GLenum target, 
+					      const GLfloat *v )
 {
    GLuint attr = (target & 0x7) + _TNL_ATTRIB_TEX0;
    DISPATCH_ATTR2FV( attr, v );
 }
 
-static void GLAPIENTRY _tnl_MultiTexCoord3f( GLenum target, GLfloat x, GLfloat y,
-				    GLfloat z)
+static void GLAPIENTRY _tnl_MultiTexCoord3f( GLenum target, GLfloat x, 
+					     GLfloat y, GLfloat z)
 {
    GLuint attr = (target & 0x7) + _TNL_ATTRIB_TEX0;
    DISPATCH_ATTR3F( attr, x, y, z );
 }
 
-static void GLAPIENTRY _tnl_MultiTexCoord3fv( GLenum target, const GLfloat *v )
+static void GLAPIENTRY _tnl_MultiTexCoord3fv( GLenum target, 
+					      const GLfloat *v )
 {
    GLuint attr = (target & 0x7) + _TNL_ATTRIB_TEX0;
    DISPATCH_ATTR3FV( attr, v );
 }
 
-static void GLAPIENTRY _tnl_MultiTexCoord4f( GLenum target, GLfloat x, GLfloat y,
-				    GLfloat z, GLfloat w )
+static void GLAPIENTRY _tnl_MultiTexCoord4f( GLenum target, GLfloat x, 
+					     GLfloat y, GLfloat z,
+					     GLfloat w )
 {
    GLuint attr = (target & 0x7) + _TNL_ATTRIB_TEX0;
    DISPATCH_ATTR4F( attr, x, y, z, w );
 }
 
-static void GLAPIENTRY _tnl_MultiTexCoord4fv( GLenum target, const GLfloat *v )
+static void GLAPIENTRY _tnl_MultiTexCoord4fv( GLenum target, 
+					      const GLfloat *v )
 {
    GLuint attr = (target & 0x7) + _TNL_ATTRIB_TEX0;
    DISPATCH_ATTR4FV( attr, v );
@@ -697,68 +729,58 @@ static void GLAPIENTRY _tnl_MultiTexCoord4fv( GLenum target, const GLfloat *v )
 
 static void GLAPIENTRY _tnl_VertexAttrib1fNV( GLuint index, GLfloat x )
 {
-   if (index < VERT_ATTRIB_MAX)
-      DISPATCH_ATTR1F( index, x );
-   else
-      enum_error(); 
+   if (index >= VERT_ATTRIB_MAX) index = ERROR_ATTRIB;
+   DISPATCH_ATTR1F( index, x );
 }
 
-static void GLAPIENTRY _tnl_VertexAttrib1fvNV( GLuint index, const GLfloat *v )
+static void GLAPIENTRY _tnl_VertexAttrib1fvNV( GLuint index, 
+					       const GLfloat *v )
 {
-   if (index < VERT_ATTRIB_MAX)
-      DISPATCH_ATTR1FV( index, v );
-   else
-      enum_error();
+   if (index >= VERT_ATTRIB_MAX) index = ERROR_ATTRIB;
+   DISPATCH_ATTR1FV( index, v );
 }
 
-static void GLAPIENTRY _tnl_VertexAttrib2fNV( GLuint index, GLfloat x, GLfloat y )
+static void GLAPIENTRY _tnl_VertexAttrib2fNV( GLuint index, GLfloat x, 
+					      GLfloat y )
 {
-   if (index < VERT_ATTRIB_MAX)
-      DISPATCH_ATTR2F( index, x, y );
-   else
-      enum_error();
+   if (index >= VERT_ATTRIB_MAX) index = ERROR_ATTRIB;
+   DISPATCH_ATTR2F( index, x, y );
 }
 
-static void GLAPIENTRY _tnl_VertexAttrib2fvNV( GLuint index, const GLfloat *v )
+static void GLAPIENTRY _tnl_VertexAttrib2fvNV( GLuint index,
+					       const GLfloat *v )
 {
-   if (index < VERT_ATTRIB_MAX)
-      DISPATCH_ATTR2FV( index, v );
-   else
-      enum_error();
+   if (index >= VERT_ATTRIB_MAX) index = ERROR_ATTRIB;
+   DISPATCH_ATTR2FV( index, v );
 }
 
-static void GLAPIENTRY _tnl_VertexAttrib3fNV( GLuint index, GLfloat x, GLfloat y, 
-				  GLfloat z )
+static void GLAPIENTRY _tnl_VertexAttrib3fNV( GLuint index, GLfloat x,
+					      GLfloat y, GLfloat z )
 {
-   if (index < VERT_ATTRIB_MAX)
-      DISPATCH_ATTR3F( index, x, y, z );
-   else
-      enum_error();
+   if (index >= VERT_ATTRIB_MAX) index = ERROR_ATTRIB;
+   DISPATCH_ATTR3F( index, x, y, z );
 }
 
-static void GLAPIENTRY _tnl_VertexAttrib3fvNV( GLuint index, const GLfloat *v )
+static void GLAPIENTRY _tnl_VertexAttrib3fvNV( GLuint index,
+					       const GLfloat *v )
 {
-   if (index < VERT_ATTRIB_MAX)
-      DISPATCH_ATTR3FV( index, v );
-   else
-      enum_error();
+   if (index >= VERT_ATTRIB_MAX) index = ERROR_ATTRIB;
+   DISPATCH_ATTR3FV( index, v );
 }
 
-static void GLAPIENTRY _tnl_VertexAttrib4fNV( GLuint index, GLfloat x, GLfloat y,
-				  GLfloat z, GLfloat w )
+static void GLAPIENTRY _tnl_VertexAttrib4fNV( GLuint index, GLfloat x,
+					      GLfloat y, GLfloat z,
+					      GLfloat w )
 {
-   if (index < VERT_ATTRIB_MAX)
-      DISPATCH_ATTR4F( index, x, y, z, w );
-   else
-      enum_error();
+   if (index >= VERT_ATTRIB_MAX) index = ERROR_ATTRIB;
+   DISPATCH_ATTR4F( index, x, y, z, w );
 }
 
-static void GLAPIENTRY _tnl_VertexAttrib4fvNV( GLuint index, const GLfloat *v )
+static void GLAPIENTRY _tnl_VertexAttrib4fvNV( GLuint index, 
+					       const GLfloat *v )
 {
-   if (index < VERT_ATTRIB_MAX)
-      DISPATCH_ATTR4FV( index, v );
-   else
-      enum_error();
+   if (index >= VERT_ATTRIB_MAX) index = ERROR_ATTRIB;
+   DISPATCH_ATTR4FV( index, v );
 }