Mesa (master): mesa: Fix display list handling for GL_ARB_draw_instanced.

[Kenneth Graunke]

Module: Mesa
Branch: master
Commit: 3c69a18b6a9f292542672c58bb324a69b750a208
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=3c69a18b6a9f292542672c58bb324a69b750a208

Author: Eric Anholt <eric at anholt.net>
Date:   Tue Feb 28 13:33:51 2012 -0800

mesa: Fix display list handling for GL_ARB_draw_instanced.

When you called them in a display list compile before, you would just
end up calling through NULL.

Fixes piglit GL_ARB_draw_instanced/dlist.

Reviewed-by: Kenneth Graunke <kenneth at whitecape.org>

---

 src/mesa/main/api_validate.c |    6 ------
 src/mesa/main/dlist.c        |   28 ++++++++++++++++++++++++++++
 2 files changed, 28 insertions(+), 6 deletions(-)

diff --git a/src/mesa/main/api_validate.c b/src/mesa/main/api_validate.c
index 1ae491f..b10d8cd 100644
--- a/src/mesa/main/api_validate.c
+++ b/src/mesa/main/api_validate.c
@@ -399,12 +399,6 @@ _mesa_validate_DrawArraysInstanced(struct gl_context *ctx, GLenum mode, GLint fi
    if (!check_valid_to_render(ctx, "glDrawArraysInstanced(invalid to render)"))
       return GL_FALSE;
 
-   if (ctx->CompileFlag) {
-      _mesa_error(ctx, GL_INVALID_OPERATION,
-                  "glDrawArraysInstanced(display list");
-      return GL_FALSE;
-   }
-
    if (ctx->Const.CheckArrayBounds) {
       if (first + count > (GLint) ctx->Array.ArrayObj->_MaxElement)
          return GL_FALSE;
diff --git a/src/mesa/main/dlist.c b/src/mesa/main/dlist.c
index 677debf..0eefd40 100644
--- a/src/mesa/main/dlist.c
+++ b/src/mesa/main/dlist.c
@@ -1300,6 +1300,30 @@ save_BlendEquationSeparatei(GLuint buf, GLenum modeRGB, GLenum modeA)
 }
 
 
+/* GL_ARB_draw_instanced. */
+static void GLAPIENTRY
+save_DrawArraysInstancedARB(GLenum mode,
+			    GLint first,
+			    GLsizei count,
+			    GLsizei primcount)
+{
+   GET_CURRENT_CONTEXT(ctx);
+   _mesa_error(ctx, GL_INVALID_OPERATION,
+	       "glDrawArraysInstanced() during display list compile");
+}
+
+static void GLAPIENTRY
+save_DrawElementsInstancedARB(GLenum mode,
+			      GLsizei count,
+			      GLenum type,
+			      const GLvoid *indices,
+			      GLsizei primcount)
+{
+   GET_CURRENT_CONTEXT(ctx);
+   _mesa_error(ctx, GL_INVALID_OPERATION,
+	       "glDrawElementsInstanced() during display list compile");
+}
+
 static void invalidate_saved_current_state( struct gl_context *ctx )
 {
    GLint i;
@@ -10751,6 +10775,10 @@ _mesa_save_vtxfmt_init(GLvertexformat * vfmt)
 
    vfmt->Rectf = save_Rectf;
 
+   /* GL_ARB_draw_instanced */
+   vfmt->DrawArraysInstanced = save_DrawArraysInstancedARB;
+   vfmt->DrawElementsInstanced = save_DrawElementsInstancedARB;
+
    /* The driver is required to implement these as
     * 1) They can probably do a better job.
     * 2) A lot of new mechanisms would have to be added to this module