ilo: add ilo_buffer.h to core

Rename the original ilo_buffer to ilo_buffer_resource to avoid name conflict.

5 files changed, 138 insertions, 90 deletions

diff --git a/src/gallium/drivers/ilo/Makefile.sources b/src/gallium/drivers/ilo/Makefile.sources
index f1a7ef522f2..fbb33b4e10a 100644
--- a/src/gallium/drivers/ilo/Makefile.sources
+++ b/src/gallium/drivers/ilo/Makefile.sources
@@ -1,4 +1,5 @@
 C_SOURCES := \
+	core/ilo_buffer.h \
 	core/ilo_core.h \
 	core/ilo_debug.c \
 	core/ilo_debug.h \
diff --git a/src/gallium/drivers/ilo/core/ilo_buffer.h b/src/gallium/drivers/ilo/core/ilo_buffer.h
new file mode 100644
index 00000000000..50f97d10bd7
--- /dev/null
+++ b/src/gallium/drivers/ilo/core/ilo_buffer.h
@@ -0,0 +1,90 @@
+/*
+ * Mesa 3-D graphics library
+ *
+ * Copyright (C) 2012-2013 LunarG, Inc.
+ *
+ * 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 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.
+ *
+ * Authors:
+ *    Chia-I Wu <[email protected]>
+ */
+
+#ifndef ILO_BUFFER_H
+#define ILO_BUFFER_H
+
+#include "intel_winsys.h"
+
+#include "ilo_core.h"
+#include "ilo_dev.h"
+
+struct ilo_buffer {
+   unsigned bo_size;
+
+   struct intel_bo *bo;
+};
+
+static inline void
+ilo_buffer_init(struct ilo_buffer *buf, const struct ilo_dev *dev,
+                unsigned size, uint32_t bind, uint32_t flags)
+{
+   buf->bo_size = size;
+
+   /*
+    * From the Sandy Bridge PRM, volume 1 part 1, page 118:
+    *
+    *     "For buffers, which have no inherent "height," padding requirements
+    *      are different. A buffer must be padded to the next multiple of 256
+    *      array elements, with an additional 16 bytes added beyond that to
+    *      account for the L1 cache line."
+    */
+   if (bind & PIPE_BIND_SAMPLER_VIEW)
+      buf->bo_size = align(buf->bo_size, 256) + 16;
+
+   if ((bind & PIPE_BIND_VERTEX_BUFFER) && ilo_dev_gen(dev) < ILO_GEN(7.5)) {
+      /*
+       * As noted in ilo_format_translate(), we treat some 3-component formats
+       * as 4-component formats to work around hardware limitations.  Imagine
+       * the case where the vertex buffer holds a single
+       * PIPE_FORMAT_R16G16B16_FLOAT vertex, and buf->bo_size is 6.  The
+       * hardware would fail to fetch it at boundary check because the vertex
+       * buffer is expected to hold a PIPE_FORMAT_R16G16B16A16_FLOAT vertex
+       * and that takes at least 8 bytes.
+       *
+       * For the workaround to work, we should add 2 to the bo size.  But that
+       * would waste a page when the bo size is already page aligned.  Let's
+       * round it to page size for now and revisit this when needed.
+       */
+      buf->bo_size = align(buf->bo_size, 4096);
+   }
+}
+
+static inline void
+ilo_buffer_cleanup(struct ilo_buffer *buf)
+{
+   intel_bo_unref(buf->bo);
+}
+
+static inline void
+ilo_buffer_set_bo(struct ilo_buffer *buf, struct intel_bo *bo)
+{
+   intel_bo_unref(buf->bo);
+   buf->bo = intel_bo_ref(bo);
+}
+
+#endif /* ILO_BUFFER_H */
diff --git a/src/gallium/drivers/ilo/ilo_resource.c b/src/gallium/drivers/ilo/ilo_resource.c
index 7e8d70083cb..ae4ae59f7ef 100644
--- a/src/gallium/drivers/ilo/ilo_resource.c
+++ b/src/gallium/drivers/ilo/ilo_resource.c
@@ -414,21 +414,28 @@ tex_get_handle(struct ilo_texture *tex, struct winsys_handle *handle)
 }
 
 static bool
-buf_create_bo(struct ilo_buffer *buf)
+buf_create_bo(struct ilo_buffer_resource *buf)
 {
    struct ilo_screen *is = ilo_screen(buf->base.screen);
    const char *name = resource_get_bo_name(&buf->base);
    const bool cpu_init = resource_get_cpu_init(&buf->base);
+   struct intel_bo *bo;
+
+   bo = intel_winsys_alloc_bo(is->dev.winsys, name,
+         buf->buffer.bo_size, cpu_init);
+   if (!bo)
+      return false;
 
-   buf->bo = intel_winsys_alloc_bo(is->dev.winsys, name, buf->bo_size, cpu_init);
+   ilo_buffer_set_bo(&buf->buffer, bo);
+   intel_bo_unref(bo);
 
-   return (buf->bo != NULL);
+   return true;
 }
 
 static void
-buf_destroy(struct ilo_buffer *buf)
+buf_destroy(struct ilo_buffer_resource *buf)
 {
-   intel_bo_unref(buf->bo);
+   ilo_buffer_cleanup(&buf->buffer);
    FREE(buf);
 }
 
@@ -436,9 +443,9 @@ static struct pipe_resource *
 buf_create(struct pipe_screen *screen, const struct pipe_resource *templ)
 {
    const struct ilo_screen *is = ilo_screen(screen);
-   struct ilo_buffer *buf;
+   struct ilo_buffer_resource *buf;
 
-   buf = CALLOC_STRUCT(ilo_buffer);
+   buf = CALLOC_STRUCT(ilo_buffer_resource);
    if (!buf)
       return NULL;
 
@@ -446,39 +453,11 @@ buf_create(struct pipe_screen *screen, const struct pipe_resource *templ)
    buf->base.screen = screen;
    pipe_reference_init(&buf->base.reference, 1);
 
-   buf->bo_size = templ->width0;
-
-   /*
-    * From the Sandy Bridge PRM, volume 1 part 1, page 118:
-    *
-    *     "For buffers, which have no inherent "height," padding requirements
-    *      are different. A buffer must be padded to the next multiple of 256
-    *      array elements, with an additional 16 bytes added beyond that to
-    *      account for the L1 cache line."
-    */
-   if (templ->bind & PIPE_BIND_SAMPLER_VIEW)
-      buf->bo_size = align(buf->bo_size, 256) + 16;
-
-   if ((templ->bind & PIPE_BIND_VERTEX_BUFFER) &&
-        ilo_dev_gen(&is->dev) < ILO_GEN(7.5)) {
-      /*
-       * As noted in ilo_format_translate(), we treat some 3-component formats
-       * as 4-component formats to work around hardware limitations.  Imagine
-       * the case where the vertex buffer holds a single
-       * PIPE_FORMAT_R16G16B16_FLOAT vertex, and buf->bo_size is 6.  The
-       * hardware would fail to fetch it at boundary check because the vertex
-       * buffer is expected to hold a PIPE_FORMAT_R16G16B16A16_FLOAT vertex
-       * and that takes at least 8 bytes.
-       *
-       * For the workaround to work, we should add 2 to the bo size.  But that
-       * would waste a page when the bo size is already page aligned.  Let's
-       * round it to page size for now and revisit this when needed.
-       */
-      buf->bo_size = align(buf->bo_size, 4096);
-   }
+   ilo_buffer_init(&buf->buffer, &is->dev,
+         templ->width0, templ->bind, templ->flags);
 
-   if (buf->bo_size < templ->width0 ||
-       buf->bo_size > ilo_max_resource_size ||
+   if (buf->buffer.bo_size < templ->width0 ||
+       buf->buffer.bo_size > ilo_max_resource_size ||
        !buf_create_bo(buf)) {
       FREE(buf);
       return NULL;
@@ -540,7 +519,7 @@ ilo_resource_destroy(struct pipe_screen *screen,
                      struct pipe_resource *res)
 {
    if (res->target == PIPE_BUFFER)
-      buf_destroy(ilo_buffer(res));
+      buf_destroy((struct ilo_buffer_resource *) res);
    else
       tex_destroy(ilo_texture(res));
 }
@@ -559,26 +538,17 @@ ilo_init_resource_functions(struct ilo_screen *is)
 }
 
 bool
-ilo_buffer_rename_bo(struct ilo_buffer *buf)
+ilo_resource_rename_bo(struct pipe_resource *res)
 {
-   struct intel_bo *old_bo = buf->bo;
-
-   if (buf_create_bo(buf)) {
-      intel_bo_unref(old_bo);
-      return true;
-   }
-   else {
-      buf->bo = old_bo;
-      return false;
-   }
-}
+   if (res->target == PIPE_BUFFER) {
+      return buf_create_bo((struct ilo_buffer_resource *) res);
+   } else {
+      struct ilo_texture *tex = ilo_texture(res);
 
-bool
-ilo_texture_rename_bo(struct ilo_texture *tex)
-{
-   /* an imported texture cannot be renamed */
-   if (tex->imported)
-      return false;
+      /* an imported texture cannot be renamed */
+      if (tex->imported)
+         return false;
 
-   return tex_create_bo(tex);
+      return tex_create_bo(tex);
+   }
 }
diff --git a/src/gallium/drivers/ilo/ilo_resource.h b/src/gallium/drivers/ilo/ilo_resource.h
index b5be9b5300d..f78f9495233 100644
--- a/src/gallium/drivers/ilo/ilo_resource.h
+++ b/src/gallium/drivers/ilo/ilo_resource.h
@@ -29,6 +29,7 @@
 #define ILO_RESOURCE_H
 
 #include "core/intel_winsys.h"
+#include "core/ilo_buffer.h"
 #include "core/ilo_image.h"
 
 #include "ilo_common.h"
@@ -77,13 +78,6 @@ enum ilo_texture_flags {
    ILO_TEXTURE_HIZ            = 1 << 7,
 };
 
-struct ilo_buffer {
-   struct pipe_resource base;
-
-   struct intel_bo *bo;
-   unsigned bo_size;
-};
-
 /**
  * A 3D image slice, cube face, or array layer.
  */
@@ -116,11 +110,17 @@ struct ilo_texture {
    struct ilo_texture *separate_s8;
 };
 
+struct ilo_buffer_resource {
+   struct pipe_resource base;
+
+   struct ilo_buffer buffer;
+};
+
 static inline struct ilo_buffer *
 ilo_buffer(struct pipe_resource *res)
 {
-   return (struct ilo_buffer *)
-      ((res && res->target == PIPE_BUFFER) ? res : NULL);
+   return (res && res->target == PIPE_BUFFER) ?
+      &((struct ilo_buffer_resource *) res)->buffer : NULL;
 }
 
 static inline struct ilo_texture *
@@ -134,10 +134,7 @@ void
 ilo_init_resource_functions(struct ilo_screen *is);
 
 bool
-ilo_buffer_rename_bo(struct ilo_buffer *buf);
-
-bool
-ilo_texture_rename_bo(struct ilo_texture *tex);
+ilo_resource_rename_bo(struct pipe_resource *res);
 
 /**
  * Return the bo of the resource.
diff --git a/src/gallium/drivers/ilo/ilo_transfer.c b/src/gallium/drivers/ilo/ilo_transfer.c
index 4ee33523753..56e67870881 100644
--- a/src/gallium/drivers/ilo/ilo_transfer.c
+++ b/src/gallium/drivers/ilo/ilo_transfer.c
@@ -134,17 +134,6 @@ resource_get_transfer_method(struct pipe_resource *res,
 }
 
 /**
- * Rename the bo of the resource.
- */
-static bool
-resource_rename_bo(struct pipe_resource *res)
-{
-   return (res->target == PIPE_BUFFER) ?
-      ilo_buffer_rename_bo(ilo_buffer(res)) :
-      ilo_texture_rename_bo(ilo_texture(res));
-}
-
-/**
  * Return true if usage allows the use of staging bo to avoid blocking.
  */
 static bool
@@ -227,7 +216,7 @@ xfer_unblock(struct ilo_transfer *xfer, bool *resource_renamed)
          unblocked = true;
       }
       else if ((xfer->base.usage & PIPE_TRANSFER_DISCARD_WHOLE_RESOURCE) &&
-               resource_rename_bo(res)) {
+               ilo_resource_rename_bo(res)) {
          renamed = true;
          unblocked = true;
       }
@@ -1087,9 +1076,10 @@ choose_transfer_method(struct ilo_context *ilo, struct ilo_transfer *xfer)
 }
 
 static void
-buf_pwrite(struct ilo_context *ilo, struct ilo_buffer *buf,
+buf_pwrite(struct ilo_context *ilo, struct pipe_resource *res,
            unsigned usage, int offset, int size, const void *data)
 {
+   struct ilo_buffer *buf = ilo_buffer(res);
    bool need_submit;
 
    /* see if we can avoid blocking */
@@ -1097,8 +1087,8 @@ buf_pwrite(struct ilo_context *ilo, struct ilo_buffer *buf,
       bool unblocked = false;
 
       if ((usage & PIPE_TRANSFER_DISCARD_WHOLE_RESOURCE) &&
-          ilo_buffer_rename_bo(buf)) {
-         ilo_state_vector_resource_renamed(&ilo->state_vector, &buf->base);
+          ilo_resource_rename_bo(res)) {
+         ilo_state_vector_resource_renamed(&ilo->state_vector, res);
          unblocked = true;
       }
       else {
@@ -1108,7 +1098,7 @@ buf_pwrite(struct ilo_context *ilo, struct ilo_buffer *buf,
           * allocate a staging buffer to hold the data and pipelined copy it
           * over
           */
-         templ = buf->base;
+         templ = *res;
          templ.width0 = size;
          templ.usage = PIPE_USAGE_STAGING;
          templ.bind = PIPE_BIND_TRANSFER_WRITE;
@@ -1120,7 +1110,7 @@ buf_pwrite(struct ilo_context *ilo, struct ilo_buffer *buf,
 
             u_box_1d(0, size, &staging_box);
             ilo_blitter_blt_copy_resource(ilo->blitter,
-                  &buf->base, 0, offset, 0, 0,
+                  res, 0, offset, 0, 0,
                   staging, 0, &staging_box);
 
             pipe_resource_reference(&staging, NULL);
@@ -1251,7 +1241,7 @@ ilo_transfer_inline_write(struct pipe_context *pipe,
       assert(box->height == 1);
       assert(box->depth == 1);
 
-      buf_pwrite(ilo_context(pipe), ilo_buffer(res),
+      buf_pwrite(ilo_context(pipe), res,
             usage, box->x, box->width, data);
    }
    else {