mesa: remove unused _mesa_draw_indirect

All drivers that expose ARB_draw_indirect also set the driver callback.

Reviewed-by: Mathias Fröhlich <[email protected]>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/merge_requests/3829>

3 files changed, 1 insertions, 83 deletions

diff --git a/src/mesa/drivers/common/driverfuncs.c b/src/mesa/drivers/common/driverfuncs.c
index bdfac61f344..e36a80f6a55 100644
--- a/src/mesa/drivers/common/driverfuncs.c
+++ b/src/mesa/drivers/common/driverfuncs.c
@@ -122,7 +122,7 @@ _mesa_init_driver_functions(struct dd_function_table *driver)
 
    /* Draw functions */
    driver->Draw = NULL;
-   driver->DrawIndirect = _mesa_draw_indirect;
+   driver->DrawIndirect = NULL;
 
    /* simple state commands */
    driver->AlphaFunc = NULL;
diff --git a/src/mesa/main/draw.c b/src/mesa/main/draw.c
index 8589c292298..9f314dadebe 100644
--- a/src/mesa/main/draw.c
+++ b/src/mesa/main/draw.c
@@ -2063,75 +2063,3 @@ _mesa_MultiModeDrawElementsIBM( const GLenum * mode, const GLsizei * count,
       }
    }
 }
-
-
-/*
- * Helper function for _mesa_draw_indirect below that additionally takes a zero
- * initialized array of _mesa_prim scratch space memory as the last argument.
- */
-static void
-draw_indirect(struct gl_context *ctx, GLuint mode,
-              struct gl_buffer_object *indirect_data,
-              GLsizeiptr indirect_offset, unsigned draw_count,
-              unsigned stride,
-              struct gl_buffer_object *indirect_draw_count_buffer,
-              GLsizeiptr indirect_draw_count_offset,
-              const struct _mesa_index_buffer *ib,
-              struct _mesa_prim *prim)
-{
-   prim[0].begin = 1;
-   prim[draw_count - 1].end = 1;
-   for (unsigned i = 0; i < draw_count; ++i, indirect_offset += stride) {
-      prim[i].mode = mode;
-      prim[i].indexed = !!ib;
-      prim[i].indirect_offset = indirect_offset;
-      prim[i].draw_id = i;
-   }
-
-   /* This should always be true at this time */
-   assert(indirect_data == ctx->DrawIndirectBuffer);
-
-   ctx->Driver.Draw(ctx, prim, draw_count, ib, false, 0u, ~0u,
-                    NULL, 0, indirect_data);
-}
-
-
-/*
- * Function to be put into dd_function_table::DrawIndirect as fallback.
- * Calls into dd_function_table::Draw past adapting call arguments.
- * See dd_function_table::DrawIndirect for call argument documentation.
- */
-void
-_mesa_draw_indirect(struct gl_context *ctx, GLuint mode,
-                    struct gl_buffer_object *indirect_data,
-                    GLsizeiptr indirect_offset, unsigned draw_count,
-                    unsigned stride,
-                    struct gl_buffer_object *indirect_draw_count_buffer,
-                    GLsizeiptr indirect_draw_count_offset,
-                    const struct _mesa_index_buffer *ib)
-{
-   /* Use alloca for the prim space if we are somehow in bounds. */
-   if (draw_count*sizeof(struct _mesa_prim) < 1024) {
-      struct _mesa_prim *space = alloca(draw_count*sizeof(struct _mesa_prim));
-      memset(space, 0, draw_count*sizeof(struct _mesa_prim));
-
-      draw_indirect(ctx, mode, indirect_data, indirect_offset, draw_count,
-                    stride, indirect_draw_count_buffer,
-                    indirect_draw_count_offset, ib, space);
-   } else {
-      struct _mesa_prim *space = calloc(draw_count, sizeof(struct _mesa_prim));
-      if (space == NULL) {
-         _mesa_error(ctx, GL_OUT_OF_MEMORY, "gl%sDraw%sIndirect%s",
-                     (draw_count > 1) ? "Multi" : "",
-                     ib ? "Elements" : "Arrays",
-                     indirect_data ? "CountARB" : "");
-         return;
-      }
-
-      draw_indirect(ctx, mode, indirect_data, indirect_offset, draw_count,
-                    stride, indirect_draw_count_buffer,
-                    indirect_draw_count_offset, ib, space);
-
-      free(space);
-   }
-}
diff --git a/src/mesa/main/draw.h b/src/mesa/main/draw.h
index 5ed8b8e90bf..8fa511ef0a3 100644
--- a/src/mesa/main/draw.h
+++ b/src/mesa/main/draw.h
@@ -75,16 +75,6 @@ _mesa_initialize_exec_dispatch(const struct gl_context *ctx,
                                struct _glapi_table *exec);
 
 
-void
-_mesa_draw_indirect(struct gl_context *ctx, GLuint mode,
-                    struct gl_buffer_object *indirect_data,
-                    GLsizeiptr indirect_offset, unsigned draw_count,
-                    unsigned stride,
-                    struct gl_buffer_object *indirect_draw_count_buffer,
-                    GLsizeiptr indirect_draw_count_offset,
-                    const struct _mesa_index_buffer *ib);
-
-
 void GLAPIENTRY
 _mesa_DrawArrays(GLenum mode, GLint first, GLsizei count);