mesa: implement integer-valued vertex attribute functions

The integers still get converted to floats.  That'll have to change someday.

3 files changed, 237 insertions, 0 deletions

diff --git a/src/mesa/vbo/vbo_attrib_tmp.h b/src/mesa/vbo/vbo_attrib_tmp.h
index e680631383..3c235accf3 100644
--- a/src/mesa/vbo/vbo_attrib_tmp.h
+++ b/src/mesa/vbo/vbo_attrib_tmp.h
@@ -25,6 +25,7 @@ USE OR OTHER DEALINGS IN THE SOFTWARE.
 
 **************************************************************************/
 
+/* float */
 #define ATTR1FV( A, V ) ATTR( A, 1, (V)[0], 0, 0, 1 )
 #define ATTR2FV( A, V ) ATTR( A, 2, (V)[0], (V)[1], 0, 1 )
 #define ATTR3FV( A, V ) ATTR( A, 3, (V)[0], (V)[1], (V)[2], 1 )
@@ -35,6 +36,27 @@ USE OR OTHER DEALINGS IN THE SOFTWARE.
 #define ATTR3F( A, X, Y, Z )    ATTR( A, 3, X, Y, Z, 1 )
 #define ATTR4F( A, X, Y, Z, W ) ATTR( A, 4, X, Y, Z, W )
 
+/* int */
+#define ATTR2IV( A, V ) ATTR( A, 2, (V)[0], (V)[1], 0, 1 )
+#define ATTR3IV( A, V ) ATTR( A, 3, (V)[0], (V)[1], (V)[2], 1 )
+#define ATTR4IV( A, V ) ATTR( A, 4, (V)[0], (V)[1], (V)[2], (V)[3] )
+
+#define ATTR1I( A, X )          ATTR( A, 1, X, 0, 0, 1 )
+#define ATTR2I( A, X, Y )       ATTR( A, 2, X, Y, 0, 1 )
+#define ATTR3I( A, X, Y, Z )    ATTR( A, 3, X, Y, Z, 1 )
+#define ATTR4I( A, X, Y, Z, W ) ATTR( A, 4, X, Y, Z, W )
+
+
+/* uint */
+#define ATTR2UIV( A, V ) ATTR( A, 2, (V)[0], (V)[1], 0, 1 )
+#define ATTR3UIV( A, V ) ATTR( A, 3, (V)[0], (V)[1], (V)[2], 1 )
+#define ATTR4UIV( A, V ) ATTR( A, 4, (V)[0], (V)[1], (V)[2], (V)[3] )
+
+#define ATTR1UI( A, X )          ATTR( A, 1, X, 0, 0, 1 )
+#define ATTR2UI( A, X, Y )       ATTR( A, 2, X, Y, 0, 1 )
+#define ATTR3UI( A, X, Y, Z )    ATTR( A, 3, X, Y, Z, 1 )
+#define ATTR4UI( A, X, Y, Z, W ) ATTR( A, 4, X, Y, Z, W )
+
 #define MAT_ATTR( A, N, V ) ATTR( A, N, (V)[0], (V)[1], (V)[2], (V)[3] )
 
 
@@ -407,6 +429,185 @@ TAG(VertexAttrib4fvARB)(GLuint index, const GLfloat * v)
 }
 
 
+
+/* Integer-valued generic attributes.
+ * XXX: the integers just get converted to floats at this time
+ */
+static void GLAPIENTRY
+TAG(VertexAttribI1i)(GLuint index, GLint x)
+{
+   GET_CURRENT_CONTEXT(ctx);
+   if (index == 0)
+      ATTR1I(0, x);
+   else if (index < MAX_VERTEX_GENERIC_ATTRIBS)
+      ATTR1I(VBO_ATTRIB_GENERIC0 + index, x);
+   else
+      ERROR();
+}
+
+static void GLAPIENTRY
+TAG(VertexAttribI2i)(GLuint index, GLint x, GLint y)
+{
+   GET_CURRENT_CONTEXT(ctx);
+   if (index == 0)
+      ATTR2I(0, x, y);
+   else if (index < MAX_VERTEX_GENERIC_ATTRIBS)
+      ATTR2I(VBO_ATTRIB_GENERIC0 + index, x, y);
+   else
+      ERROR();
+}
+
+static void GLAPIENTRY
+TAG(VertexAttribI3i)(GLuint index, GLint x, GLint y, GLint z)
+{
+   GET_CURRENT_CONTEXT(ctx);
+   if (index == 0)
+      ATTR3I(0, x, y, z);
+   else if (index < MAX_VERTEX_GENERIC_ATTRIBS)
+      ATTR3I(VBO_ATTRIB_GENERIC0 + index, x, y, z);
+   else
+      ERROR();
+}
+
+static void GLAPIENTRY
+TAG(VertexAttribI4i)(GLuint index, GLint x, GLint y, GLint z, GLint w)
+{
+   GET_CURRENT_CONTEXT(ctx);
+   if (index == 0)
+      ATTR4I(0, x, y, z, w);
+   else if (index < MAX_VERTEX_GENERIC_ATTRIBS)
+      ATTR4I(VBO_ATTRIB_GENERIC0 + index, x, y, z, w);
+   else
+      ERROR();
+}
+
+static void GLAPIENTRY
+TAG(VertexAttribI2iv)(GLuint index, const GLint *v)
+{
+   GET_CURRENT_CONTEXT(ctx);
+   if (index == 0)
+      ATTR2IV(0, v);
+   else if (index < MAX_VERTEX_GENERIC_ATTRIBS)
+      ATTR2IV(VBO_ATTRIB_GENERIC0 + index, v);
+   else
+      ERROR();
+}
+
+static void GLAPIENTRY
+TAG(VertexAttribI3iv)(GLuint index, const GLint *v)
+{
+   GET_CURRENT_CONTEXT(ctx);
+   if (index == 0)
+      ATTR3IV(0, v);
+   else if (index < MAX_VERTEX_GENERIC_ATTRIBS)
+      ATTR3IV(VBO_ATTRIB_GENERIC0 + index, v);
+   else
+      ERROR();
+}
+
+static void GLAPIENTRY
+TAG(VertexAttribI4iv)(GLuint index, const GLint *v)
+{
+   GET_CURRENT_CONTEXT(ctx);
+   if (index == 0)
+      ATTR4IV(0, v);
+   else if (index < MAX_VERTEX_GENERIC_ATTRIBS)
+      ATTR4IV(VBO_ATTRIB_GENERIC0 + index, v);
+   else
+      ERROR();
+}
+
+
+
+/* Unsigned integer-valued generic attributes.
+ * XXX: the integers just get converted to floats at this time
+ */
+static void GLAPIENTRY
+TAG(VertexAttribI1ui)(GLuint index, GLuint x)
+{
+   GET_CURRENT_CONTEXT(ctx);
+   if (index == 0)
+      ATTR1UI(0, x);
+   else if (index < MAX_VERTEX_GENERIC_ATTRIBS)
+      ATTR1UI(VBO_ATTRIB_GENERIC0 + index, x);
+   else
+      ERROR();
+}
+
+static void GLAPIENTRY
+TAG(VertexAttribI2ui)(GLuint index, GLuint x, GLuint y)
+{
+   GET_CURRENT_CONTEXT(ctx);
+   if (index == 0)
+      ATTR2UI(0, x, y);
+   else if (index < MAX_VERTEX_GENERIC_ATTRIBS)
+      ATTR2UI(VBO_ATTRIB_GENERIC0 + index, x, y);
+   else
+      ERROR();
+}
+
+static void GLAPIENTRY
+TAG(VertexAttribI3ui)(GLuint index, GLuint x, GLuint y, GLuint z)
+{
+   GET_CURRENT_CONTEXT(ctx);
+   if (index == 0)
+      ATTR3UI(0, x, y, z);
+   else if (index < MAX_VERTEX_GENERIC_ATTRIBS)
+      ATTR3UI(VBO_ATTRIB_GENERIC0 + index, x, y, z);
+   else
+      ERROR();
+}
+
+static void GLAPIENTRY
+TAG(VertexAttribI4ui)(GLuint index, GLuint x, GLuint y, GLuint z, GLuint w)
+{
+   GET_CURRENT_CONTEXT(ctx);
+   if (index == 0)
+      ATTR4UI(0, x, y, z, w);
+   else if (index < MAX_VERTEX_GENERIC_ATTRIBS)
+      ATTR4UI(VBO_ATTRIB_GENERIC0 + index, x, y, z, w);
+   else
+      ERROR();
+}
+
+static void GLAPIENTRY
+TAG(VertexAttribI2uiv)(GLuint index, const GLuint *v)
+{
+   GET_CURRENT_CONTEXT(ctx);
+   if (index == 0)
+      ATTR2UIV(0, v);
+   else if (index < MAX_VERTEX_GENERIC_ATTRIBS)
+      ATTR2UIV(VBO_ATTRIB_GENERIC0 + index, v);
+   else
+      ERROR();
+}
+
+static void GLAPIENTRY
+TAG(VertexAttribI3uiv)(GLuint index, const GLuint *v)
+{
+   GET_CURRENT_CONTEXT(ctx);
+   if (index == 0)
+      ATTR3UIV(0, v);
+   else if (index < MAX_VERTEX_GENERIC_ATTRIBS)
+      ATTR3UIV(VBO_ATTRIB_GENERIC0 + index, v);
+   else
+      ERROR();
+}
+
+static void GLAPIENTRY
+TAG(VertexAttribI4uiv)(GLuint index, const GLuint *v)
+{
+   GET_CURRENT_CONTEXT(ctx);
+   if (index == 0)
+      ATTR4UIV(0, v);
+   else if (index < MAX_VERTEX_GENERIC_ATTRIBS)
+      ATTR4UIV(VBO_ATTRIB_GENERIC0 + index, v);
+   else
+      ERROR();
+}
+
+
+
 /* In addition to supporting NV_vertex_program, these entrypoints are
  * used by the display list and other code specifically because of
  * their property of aliasing with other attributes.  (See
diff --git a/src/mesa/vbo/vbo_exec_api.c b/src/mesa/vbo/vbo_exec_api.c
index 1ef4917419..4988c51d44 100644
--- a/src/mesa/vbo/vbo_exec_api.c
+++ b/src/mesa/vbo/vbo_exec_api.c
@@ -658,6 +658,24 @@ static void vbo_exec_vtxfmt_init( struct vbo_exec_context *exec )
    vfmt->VertexAttrib4fNV = vbo_VertexAttrib4fNV;
    vfmt->VertexAttrib4fvNV = vbo_VertexAttrib4fvNV;
 
+   /* integer-valued */
+   vfmt->VertexAttribI1i = vbo_VertexAttribI1i;
+   vfmt->VertexAttribI2i = vbo_VertexAttribI2i;
+   vfmt->VertexAttribI3i = vbo_VertexAttribI3i;
+   vfmt->VertexAttribI4i = vbo_VertexAttribI4i;
+   vfmt->VertexAttribI2iv = vbo_VertexAttribI2iv;
+   vfmt->VertexAttribI3iv = vbo_VertexAttribI3iv;
+   vfmt->VertexAttribI4iv = vbo_VertexAttribI4iv;
+
+   /* unsigned integer-valued */
+   vfmt->VertexAttribI1ui = vbo_VertexAttribI1ui;
+   vfmt->VertexAttribI2ui = vbo_VertexAttribI2ui;
+   vfmt->VertexAttribI3ui = vbo_VertexAttribI3ui;
+   vfmt->VertexAttribI4ui = vbo_VertexAttribI4ui;
+   vfmt->VertexAttribI2uiv = vbo_VertexAttribI2uiv;
+   vfmt->VertexAttribI3uiv = vbo_VertexAttribI3uiv;
+   vfmt->VertexAttribI4uiv = vbo_VertexAttribI4uiv;
+
    vfmt->Materialfv = vbo_Materialfv;
 
    vfmt->EdgeFlag = vbo_EdgeFlag;
diff --git a/src/mesa/vbo/vbo_save_api.c b/src/mesa/vbo/vbo_save_api.c
index 19c4b15d5f..cb0d9fc8f0 100644
--- a/src/mesa/vbo/vbo_save_api.c
+++ b/src/mesa/vbo/vbo_save_api.c
@@ -1065,6 +1065,24 @@ static void _save_vtxfmt_init( struct gl_context *ctx )
    vfmt->VertexAttrib4fNV = _save_VertexAttrib4fNV;
    vfmt->VertexAttrib4fvNV = _save_VertexAttrib4fvNV;
    
+   /* integer-valued */
+   vfmt->VertexAttribI1i = _save_VertexAttribI1i;
+   vfmt->VertexAttribI2i = _save_VertexAttribI2i;
+   vfmt->VertexAttribI3i = _save_VertexAttribI3i;
+   vfmt->VertexAttribI4i = _save_VertexAttribI4i;
+   vfmt->VertexAttribI2iv = _save_VertexAttribI2iv;
+   vfmt->VertexAttribI3iv = _save_VertexAttribI3iv;
+   vfmt->VertexAttribI4iv = _save_VertexAttribI4iv;
+
+   /* unsigned integer-valued */
+   vfmt->VertexAttribI1ui = _save_VertexAttribI1ui;
+   vfmt->VertexAttribI2ui = _save_VertexAttribI2ui;
+   vfmt->VertexAttribI3ui = _save_VertexAttribI3ui;
+   vfmt->VertexAttribI4ui = _save_VertexAttribI4ui;
+   vfmt->VertexAttribI2uiv = _save_VertexAttribI2uiv;
+   vfmt->VertexAttribI3uiv = _save_VertexAttribI3uiv;
+   vfmt->VertexAttribI4uiv = _save_VertexAttribI4uiv;
+
    /* This will all require us to fallback to saving the list as opcodes:
     */ 
    _MESA_INIT_DLIST_VTXFMT(vfmt, _save_); /* inside begin/end */