Mesa (master): i915g: Add new buffer code not yet hocked up
Jakob Bornecrantz
wallbraker at kemper.freedesktop.org
Mon Aug 31 22:42:20 UTC 2009
Module: Mesa
Branch: master
Commit: 105e4b093e28d6cd9e8ec2db9dbc23980d265796
URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=105e4b093e28d6cd9e8ec2db9dbc23980d265796
Author: Jakob Bornecrantz <wallbraker at gmail.com>
Date: Sun Aug 30 16:26:01 2009 +0100
i915g: Add new buffer code not yet hocked up
---
src/gallium/drivers/i915simple/Makefile | 1 +
src/gallium/drivers/i915simple/SConscript | 1 +
src/gallium/drivers/i915simple/i915_buffer.c | 136 ++++++++++++++++++++++++++
src/gallium/drivers/i915simple/i915_buffer.h | 31 ++++++
4 files changed, 169 insertions(+), 0 deletions(-)
diff --git a/src/gallium/drivers/i915simple/Makefile b/src/gallium/drivers/i915simple/Makefile
index 8870b39..fb533c1 100644
--- a/src/gallium/drivers/i915simple/Makefile
+++ b/src/gallium/drivers/i915simple/Makefile
@@ -5,6 +5,7 @@ LIBNAME = i915simple
C_SOURCES = \
i915_blit.c \
+ i915_buffer.c \
i915_clear.c \
i915_flush.c \
i915_context.c \
diff --git a/src/gallium/drivers/i915simple/SConscript b/src/gallium/drivers/i915simple/SConscript
index 2366e12..778c4ed 100644
--- a/src/gallium/drivers/i915simple/SConscript
+++ b/src/gallium/drivers/i915simple/SConscript
@@ -6,6 +6,7 @@ i915simple = env.ConvenienceLibrary(
target = 'i915simple',
source = [
'i915_blit.c',
+ 'i915_buffer.c',
'i915_clear.c',
'i915_context.c',
'i915_debug.c',
diff --git a/src/gallium/drivers/i915simple/i915_buffer.c b/src/gallium/drivers/i915simple/i915_buffer.c
new file mode 100644
index 0000000..effeba1
--- /dev/null
+++ b/src/gallium/drivers/i915simple/i915_buffer.c
@@ -0,0 +1,136 @@
+/**************************************************************************
+ *
+ * Copyright © 2009 Jakob Bornecrantz
+ *
+ * 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.
+ *
+ **************************************************************************/
+
+#include "util/u_memory.h"
+#include "i915_screen.h"
+#include "i915_buffer.h"
+
+struct intel_buffer;
+
+struct i915_buffer
+{
+ struct pipe_buffer base;
+
+ struct intel_buffer *ibuf; /** hw buffer */
+
+ void *data; /**< user and malloc data */
+ boolean own; /**< we own the data incase of malloc */
+};
+
+static INLINE struct i915_buffer *
+i915_buffer(struct pipe_buffer *buffer)
+{
+ return (struct i915_buffer *)buffer;
+}
+
+static struct pipe_buffer *
+i915_buffer_create(struct pipe_screen *screen,
+ unsigned alignment,
+ unsigned usage,
+ unsigned size)
+{
+ struct i915_buffer *buf = CALLOC_STRUCT(i915_buffer);
+
+ if (!buf)
+ return NULL;
+
+ pipe_reference_init(&buf->base.reference, 1);
+ buf->base.alignment = alignment;
+ buf->base.screen = screen;
+ buf->base.usage = usage;
+ buf->base.size = size;
+ buf->data = MALLOC(size);
+ buf->own = TRUE;
+
+ if (!buf->data)
+ goto err;
+
+ return &buf->base;
+
+err:
+ FREE(buf);
+ return NULL;
+}
+
+static struct pipe_buffer *
+i915_user_buffer_create(struct pipe_screen *screen,
+ void *ptr,
+ unsigned bytes)
+{
+ struct i915_buffer *buf = CALLOC_STRUCT(i915_buffer);
+
+ if (!buf)
+ return NULL;
+
+ pipe_reference_init(&buf->base.reference, 1);
+ buf->base.alignment = 0;
+ buf->base.screen = screen;
+ buf->base.usage = 0;
+ buf->base.size = bytes;
+ buf->data = ptr;
+ buf->own = FALSE;
+
+ return &buf->base;
+}
+
+static void *
+i915_buffer_map(struct pipe_screen *screen,
+ struct pipe_buffer *buffer,
+ unsigned usage)
+{
+ struct i915_buffer *buf = i915_buffer(buffer);
+ assert(!buf->ibuf);
+ return buf->data;
+}
+
+static void
+i915_buffer_unmap(struct pipe_screen *screen,
+ struct pipe_buffer *buffer)
+{
+ struct i915_buffer *buf = i915_buffer(buffer);
+ assert(!buf->ibuf);
+}
+
+static void
+i915_buffer_destroy(struct pipe_buffer *buffer)
+{
+ struct i915_buffer *buf = i915_buffer(buffer);
+ assert(!buf->ibuf);
+
+ if (buf->own)
+ FREE(buf->data);
+ FREE(buf);
+}
+
+void i915_init_screen_buffer_functions(struct i915_screen *screen)
+{
+ screen->base.buffer_create = i915_buffer_create;
+ screen->base.user_buffer_create = i915_user_buffer_create;
+ screen->base.buffer_map = i915_buffer_map;
+ screen->base.buffer_map_range = NULL;
+ screen->base.buffer_flush_mapped_range = NULL;
+ screen->base.buffer_unmap = i915_buffer_unmap;
+ screen->base.buffer_destroy = i915_buffer_destroy;
+}
diff --git a/src/gallium/drivers/i915simple/i915_buffer.h b/src/gallium/drivers/i915simple/i915_buffer.h
new file mode 100644
index 0000000..80fda7c
--- /dev/null
+++ b/src/gallium/drivers/i915simple/i915_buffer.h
@@ -0,0 +1,31 @@
+/**************************************************************************
+ *
+ * Copyright © 2009 Jakob Bornecrantz
+ *
+ * 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.
+ *
+ **************************************************************************/
+
+#ifndef I915_BUFFER_H
+#define I915_BUFFER_H
+
+void i915_init_screen_buffer_functions(struct i915_screen *screen);
+
+#endif
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