commit e24c329b2c3ba3af2b477340d243a7da522084cb
author Chia-I Wu <olvaffe@gmail.com> Thu Aug 21 14:05:23 2014 +0800
committer Chia-I Wu <olvaffe@gmail.com> Thu Aug 21 15:33:07 2014 +0800
tree 5f37b748f82bcf270bb2d7c5c6ba53c7a87390b8
parent bd657943f17365ebc6535da8f1a5257f4963a1a5

intel: introduce intel_cmd_writer

There is currently a single writer for the batch buffer.  We want to add more
writers later.

icd/intel/cmd.h

diff --git a/icd/intel/cmd.h b/icd/intel/cmd.h
index a2a7427..8e575d1 100644
--- a/icd/intel/cmd.h
+++ b/icd/intel/cmd.h
@@ -86,6 +86,15 @@
     } att;
 };
 
+struct intel_cmd_writer {
+    struct intel_bo *bo;
+    void *ptr_opaque;
+
+    /* in DWords */
+    XGL_UINT size;
+    XGL_UINT used;
+};
+
 struct intel_cmd {
     struct intel_obj obj;
 
@@ -96,11 +105,8 @@
 
     XGL_FLAGS flags;
 
-    XGL_SIZE bo_size;
-    struct intel_bo *bo;
-    void *ptr_opaque;
+    struct intel_cmd_writer batch;
 
-    XGL_UINT used, size;
     XGL_UINT reloc_used;
     XGL_RESULT result;
 
@@ -125,6 +131,17 @@
 XGL_RESULT intel_cmd_begin(struct intel_cmd *cmd, XGL_FLAGS flags);
 XGL_RESULT intel_cmd_end(struct intel_cmd *cmd);
 
+static inline struct intel_bo *intel_cmd_get_batch(const struct intel_cmd *cmd,
+                                                   XGL_GPU_SIZE *used)
+{
+    const struct intel_cmd_writer *writer = &cmd->batch;
+
+    if (used)
+        *used = sizeof(uint32_t) * writer->used;
+
+    return writer->bo;
+}
+
 XGL_RESULT XGLAPI intelCreateCommandBuffer(
     XGL_DEVICE                                  device,
     const XGL_CMD_BUFFER_CREATE_INFO*           pCreateInfo,