i965: Split intel_upload code out into a separate file.

This code upload performs batched uploads via a BO.  By moving it out to
a separate file, intel_buffer_objects.c only provides the core buffer
object functionality.

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Paul Berry <stereotype441@gmail.com>

3 files changed, 178 insertions, 133 deletions

diff --git a/src/mesa/drivers/dri/i965/Makefile.sources b/src/mesa/drivers/dri/i965/Makefile.sources
index c92573f..60cd6e0 100644
--- a/src/mesa/drivers/dri/i965/Makefile.sources
+++ b/src/mesa/drivers/dri/i965/Makefile.sources
@@ -26,6 +26,7 @@ i965_FILES = \
 	intel_tex_image.c \
 	intel_tex_subimage.c \
 	intel_tex_validate.c \
+	intel_upload.c \
 	brw_blorp.cpp \
 	brw_blorp_blit.cpp \
 	brw_blorp_clear.cpp \
diff --git a/src/mesa/drivers/dri/i965/intel_buffer_objects.c b/src/mesa/drivers/dri/i965/intel_buffer_objects.c
index 740913b..81c72fa 100644
--- a/src/mesa/drivers/dri/i965/intel_buffer_objects.c
+++ b/src/mesa/drivers/dri/i965/intel_buffer_objects.c
@@ -412,139 +412,6 @@ intel_bufferobj_buffer(struct brw_context *brw,
    return intel_obj->buffer;
 }
 
-#define INTEL_UPLOAD_SIZE (64*1024)
-
-void
-intel_upload_finish(struct brw_context *brw)
-{
-   if (!brw->upload.bo)
-	   return;
-
-   if (brw->upload.buffer_len) {
-	   drm_intel_bo_subdata(brw->upload.bo,
-				brw->upload.buffer_offset,
-				brw->upload.buffer_len,
-				brw->upload.buffer);
-	   brw->upload.buffer_len = 0;
-   }
-
-   drm_intel_bo_unreference(brw->upload.bo);
-   brw->upload.bo = NULL;
-}
-
-static void wrap_buffers(struct brw_context *brw, GLuint size)
-{
-   intel_upload_finish(brw);
-
-   if (size < INTEL_UPLOAD_SIZE)
-      size = INTEL_UPLOAD_SIZE;
-
-   brw->upload.bo = drm_intel_bo_alloc(brw->bufmgr, "upload", size, 0);
-   brw->upload.offset = 0;
-}
-
-void intel_upload_data(struct brw_context *brw,
-		       const void *ptr, GLuint size, GLuint align,
-		       drm_intel_bo **return_bo,
-		       GLuint *return_offset)
-{
-   GLuint base, delta;
-
-   base = (brw->upload.offset + align - 1) / align * align;
-   if (brw->upload.bo == NULL || base + size > brw->upload.bo->size) {
-      wrap_buffers(brw, size);
-      base = 0;
-   }
-
-   drm_intel_bo_reference(brw->upload.bo);
-   *return_bo = brw->upload.bo;
-   *return_offset = base;
-
-   delta = base - brw->upload.offset;
-   if (brw->upload.buffer_len &&
-       brw->upload.buffer_len + delta + size > sizeof(brw->upload.buffer))
-   {
-      drm_intel_bo_subdata(brw->upload.bo,
-			   brw->upload.buffer_offset,
-			   brw->upload.buffer_len,
-			   brw->upload.buffer);
-      brw->upload.buffer_len = 0;
-   }
-
-   if (size < sizeof(brw->upload.buffer))
-   {
-      if (brw->upload.buffer_len == 0)
-	 brw->upload.buffer_offset = base;
-      else
-	 brw->upload.buffer_len += delta;
-
-      memcpy(brw->upload.buffer + brw->upload.buffer_len, ptr, size);
-      brw->upload.buffer_len += size;
-   }
-   else
-   {
-      drm_intel_bo_subdata(brw->upload.bo, base, size, ptr);
-   }
-
-   brw->upload.offset = base + size;
-}
-
-void *intel_upload_map(struct brw_context *brw, GLuint size, GLuint align)
-{
-   GLuint base, delta;
-   char *ptr;
-
-   base = (brw->upload.offset + align - 1) / align * align;
-   if (brw->upload.bo == NULL || base + size > brw->upload.bo->size) {
-      wrap_buffers(brw, size);
-      base = 0;
-   }
-
-   delta = base - brw->upload.offset;
-   if (brw->upload.buffer_len &&
-       brw->upload.buffer_len + delta + size > sizeof(brw->upload.buffer))
-   {
-      drm_intel_bo_subdata(brw->upload.bo,
-			   brw->upload.buffer_offset,
-			   brw->upload.buffer_len,
-			   brw->upload.buffer);
-      brw->upload.buffer_len = 0;
-   }
-
-   if (size <= sizeof(brw->upload.buffer)) {
-      if (brw->upload.buffer_len == 0)
-	 brw->upload.buffer_offset = base;
-      else
-	 brw->upload.buffer_len += delta;
-
-      ptr = brw->upload.buffer + brw->upload.buffer_len;
-      brw->upload.buffer_len += size;
-   } else
-      ptr = malloc(size);
-
-   return ptr;
-}
-
-void intel_upload_unmap(struct brw_context *brw,
-			const void *ptr, GLuint size, GLuint align,
-			drm_intel_bo **return_bo,
-			GLuint *return_offset)
-{
-   GLuint base;
-
-   base = (brw->upload.offset + align - 1) / align * align;
-   if (size > sizeof(brw->upload.buffer)) {
-      drm_intel_bo_subdata(brw->upload.bo, base, size, ptr);
-      free((void*)ptr);
-   }
-
-   drm_intel_bo_reference(brw->upload.bo);
-   *return_bo = brw->upload.bo;
-   *return_offset = base;
-
-   brw->upload.offset = base + size;
-}
-
 drm_intel_bo *
 intel_bufferobj_source(struct brw_context *brw,
                        struct intel_buffer_object *intel_obj,
diff --git a/src/mesa/drivers/dri/i965/intel_upload.c b/src/mesa/drivers/dri/i965/intel_upload.c
new file mode 100644
index 0000000..70c0994
--- /dev/null
+++ b/src/mesa/drivers/dri/i965/intel_upload.c
@@ -0,0 +1,177 @@
+/*
+ * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * Copyright © 2007 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+
+/**
+ * @file intel_upload.c
+ *
+ * Batched upload via BOs.
+ */
+
+#include "main/imports.h"
+#include "main/mtypes.h"
+#include "main/macros.h"
+#include "main/bufferobj.h"
+
+#include "brw_context.h"
+#include "intel_blit.h"
+#include "intel_buffer_objects.h"
+#include "intel_batchbuffer.h"
+#include "intel_fbo.h"
+#include "intel_mipmap_tree.h"
+#include "intel_regions.h"
+
+#include "brw_context.h"
+
+#define INTEL_UPLOAD_SIZE (64*1024)
+
+void
+intel_upload_finish(struct brw_context *brw)
+{
+   if (!brw->upload.bo)
+      return;
+
+   if (brw->upload.buffer_len) {
+      drm_intel_bo_subdata(brw->upload.bo,
+                           brw->upload.buffer_offset,
+                           brw->upload.buffer_len,
+                           brw->upload.buffer);
+      brw->upload.buffer_len = 0;
+   }
+
+   drm_intel_bo_unreference(brw->upload.bo);
+   brw->upload.bo = NULL;
+}
+
+static void
+wrap_buffers(struct brw_context *brw, GLuint size)
+{
+   intel_upload_finish(brw);
+
+   if (size < INTEL_UPLOAD_SIZE)
+      size = INTEL_UPLOAD_SIZE;
+
+   brw->upload.bo = drm_intel_bo_alloc(brw->bufmgr, "upload", size, 0);
+   brw->upload.offset = 0;
+}
+
+void
+intel_upload_data(struct brw_context *brw,
+                  const void *ptr, GLuint size, GLuint align,
+                  drm_intel_bo **return_bo,
+                  GLuint *return_offset)
+{
+   GLuint base, delta;
+
+   base = (brw->upload.offset + align - 1) / align * align;
+   if (brw->upload.bo == NULL || base + size > brw->upload.bo->size) {
+      wrap_buffers(brw, size);
+      base = 0;
+   }
+
+   drm_intel_bo_reference(brw->upload.bo);
+   *return_bo = brw->upload.bo;
+   *return_offset = base;
+
+   delta = base - brw->upload.offset;
+   if (brw->upload.buffer_len &&
+       brw->upload.buffer_len + delta + size > sizeof(brw->upload.buffer)) {
+      drm_intel_bo_subdata(brw->upload.bo,
+                           brw->upload.buffer_offset,
+                           brw->upload.buffer_len,
+                           brw->upload.buffer);
+      brw->upload.buffer_len = 0;
+   }
+
+   if (size < sizeof(brw->upload.buffer)) {
+      if (brw->upload.buffer_len == 0)
+         brw->upload.buffer_offset = base;
+      else
+         brw->upload.buffer_len += delta;
+
+      memcpy(brw->upload.buffer + brw->upload.buffer_len, ptr, size);
+      brw->upload.buffer_len += size;
+   } else {
+      drm_intel_bo_subdata(brw->upload.bo, base, size, ptr);
+   }
+
+   brw->upload.offset = base + size;
+}
+
+void *
+intel_upload_map(struct brw_context *brw, GLuint size, GLuint align)
+{
+   GLuint base, delta;
+   char *ptr;
+
+   base = (brw->upload.offset + align - 1) / align * align;
+   if (brw->upload.bo == NULL || base + size > brw->upload.bo->size) {
+      wrap_buffers(brw, size);
+      base = 0;
+   }
+
+   delta = base - brw->upload.offset;
+   if (brw->upload.buffer_len &&
+       brw->upload.buffer_len + delta + size > sizeof(brw->upload.buffer)) {
+      drm_intel_bo_subdata(brw->upload.bo,
+                           brw->upload.buffer_offset,
+                           brw->upload.buffer_len,
+                           brw->upload.buffer);
+      brw->upload.buffer_len = 0;
+   }
+
+   if (size <= sizeof(brw->upload.buffer)) {
+      if (brw->upload.buffer_len == 0)
+         brw->upload.buffer_offset = base;
+      else
+         brw->upload.buffer_len += delta;
+
+      ptr = brw->upload.buffer + brw->upload.buffer_len;
+      brw->upload.buffer_len += size;
+   } else {
+      ptr = malloc(size);
+   }
+
+   return ptr;
+}
+
+void
+intel_upload_unmap(struct brw_context *brw,
+                   const void *ptr, GLuint size, GLuint align,
+                   drm_intel_bo **return_bo,
+                   GLuint *return_offset)
+{
+   GLuint base;
+
+   base = (brw->upload.offset + align - 1) / align * align;
+   if (size > sizeof(brw->upload.buffer)) {
+      drm_intel_bo_subdata(brw->upload.bo, base, size, ptr);
+      free((void*)ptr);
+   }
+
+   drm_intel_bo_reference(brw->upload.bo);
+   *return_bo = brw->upload.bo;
+   *return_offset = base;
+
+   brw->upload.offset = base + size;
+}