mesa: Implement VertexArrayAttrib[I|L]Format

Reviewed-by: Laura Ekstrand <laura@jlekstrand.net>

1 files changed, 79 insertions, 0 deletions

diff --git a/src/mesa/main/varray.c b/src/mesa/main/varray.c
index 4b506ea..6d617ca 100644
--- a/src/mesa/main/varray.c
+++ b/src/mesa/main/varray.c
@@ -1876,6 +1876,85 @@ _mesa_VertexAttribLFormat(GLuint attribIndex, GLint size, GLenum type,
 }
 
 
+static void
+vertex_array_attrib_format(GLuint vaobj, GLuint attribIndex, GLint size,
+                           GLenum type, GLboolean normalized,
+                           GLboolean integer, GLboolean doubles,
+                           GLbitfield legalTypes, GLsizei maxSize,
+                           GLuint relativeOffset, const char *func)
+{
+   GET_CURRENT_CONTEXT(ctx);
+   struct gl_vertex_array_object *vao;
+
+   ASSERT_OUTSIDE_BEGIN_END(ctx);
+
+   /* The ARB_direct_state_access spec says:
+    *
+    *   "An INVALID_OPERATION error is generated by VertexArrayAttrib*Format
+    *    if <vaobj> is not [compatibility profile: zero or] the name of an
+    *    existing vertex array object."
+    */
+   vao = _mesa_lookup_vao_err(ctx, vaobj, func);
+   if (!vao)
+      return;
+
+   /* The ARB_vertex_attrib_binding spec says:
+    *
+    *   "The error INVALID_VALUE is generated if index is greater than or equal
+    *    to the value of MAX_VERTEX_ATTRIBS."
+    */
+   if (attribIndex >= ctx->Const.Program[MESA_SHADER_VERTEX].MaxAttribs) {
+      _mesa_error(ctx, GL_INVALID_VALUE,
+                  "%s(attribindex=%u > GL_MAX_VERTEX_ATTRIBS)",
+                  func, attribIndex);
+      return;
+   }
+
+   FLUSH_VERTICES(ctx, 0);
+
+   update_array_format(ctx, func, vao,
+                       VERT_ATTRIB_GENERIC(attribIndex),
+                       legalTypes, 1, maxSize, size, type, normalized,
+                       integer, doubles, relativeOffset);
+}
+
+
+void GLAPIENTRY
+_mesa_VertexArrayAttribFormat(GLuint vaobj, GLuint attribIndex, GLint size,
+                              GLenum type, GLboolean normalized,
+                              GLuint relativeOffset)
+{
+   vertex_array_attrib_format(vaobj, attribIndex, size, type, normalized,
+                              GL_FALSE, GL_FALSE, ATTRIB_FORMAT_TYPES_MASK,
+                              BGRA_OR_4, relativeOffset,
+                              "glVertexArrayAttribFormat");
+}
+
+
+void GLAPIENTRY
+_mesa_VertexArrayAttribIFormat(GLuint vaobj, GLuint attribIndex,
+                               GLint size, GLenum type,
+                               GLuint relativeOffset)
+{
+   vertex_array_attrib_format(vaobj, attribIndex, size, type, GL_FALSE,
+                              GL_TRUE, GL_FALSE, ATTRIB_IFORMAT_TYPES_MASK,
+                              4, relativeOffset,
+                              "glVertexArrayAttribIFormat");
+}
+
+
+void GLAPIENTRY
+_mesa_VertexArrayAttribLFormat(GLuint vaobj, GLuint attribIndex,
+                               GLint size, GLenum type,
+                               GLuint relativeOffset)
+{
+   vertex_array_attrib_format(vaobj, attribIndex, size, type, GL_FALSE,
+                              GL_FALSE, GL_TRUE, ATTRIB_LFORMAT_TYPES_MASK,
+                              4, relativeOffset,
+                              "glVertexArrayAttribLFormat");
+}
+
+
 void GLAPIENTRY
 _mesa_VertexAttribBinding(GLuint attribIndex, GLuint bindingIndex)
 {