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authorJakob Bornecrantz <jakob@vmware.com>2009-08-11 18:37:09 +0100
committerJakob Bornecrantz <jakob@vmware.com>2009-08-11 18:37:09 +0100
commit7a60ed20158bff84da6eed8aca511602d95fd5b5 (patch)
tree366045ad5ab4e7f6f6ef49ed2a247e3059786703 /src/gallium
parenta41a253ce3b667fc8ad1bfbafce9e3e633667383 (diff)
i915g: Implement surface_buffer_create for softpipe
In order to run softpipe on st/xorg we need this function
Diffstat (limited to 'src/gallium')
-rw-r--r--src/gallium/winsys/drm/intel/gem/intel_be_device.c40
1 files changed, 38 insertions, 2 deletions
diff --git a/src/gallium/winsys/drm/intel/gem/intel_be_device.c b/src/gallium/winsys/drm/intel/gem/intel_be_device.c
index 512bd41d64..5312865a03 100644
--- a/src/gallium/winsys/drm/intel/gem/intel_be_device.c
+++ b/src/gallium/winsys/drm/intel/gem/intel_be_device.c
@@ -7,6 +7,7 @@
#include "pipe/p_inlines.h"
#include "util/u_memory.h"
#include "util/u_debug.h"
+#include "util/u_math.h"
#include "intel_be_fence.h"
@@ -174,6 +175,40 @@ err:
return NULL;
}
+static struct pipe_buffer *
+intel_be_surface_buffer_create(struct pipe_winsys *winsys,
+ unsigned width, unsigned height,
+ enum pipe_format format,
+ unsigned usage,
+ unsigned tex_usage,
+ unsigned *stride)
+{
+ struct pipe_format_block block;
+ unsigned buf_usage = 0;
+ unsigned buf_stride = 0;
+ unsigned buf_size = 0;
+
+ pf_get_block(format, &block);
+ buf_stride = pf_get_stride(&block, width);
+ buf_stride = align(buf_stride, 64);
+
+ if (tex_usage & PIPE_TEXTURE_USAGE_PRIMARY) {
+ /* TODO more checks */
+ assert(buf_stride <= 2048*4);
+ assert(height % 8 == 0);
+ buf_stride = 2048 * 4;
+ buf_usage |= I915_BUFFER_USAGE_SCANOUT;
+ }
+
+ buf_size = buf_stride * height;
+ *stride = buf_stride;
+
+ return intel_be_buffer_create(winsys,
+ 0,
+ buf_usage,
+ buf_size);
+}
+
boolean
intel_be_get_texture_buffer(struct drm_api *api,
struct pipe_texture *texture,
@@ -257,6 +292,7 @@ intel_be_global_handle_from_buffer(struct drm_api *api,
*handle = buf->flink;
return TRUE;
}
+
/*
* Fence
*/
@@ -328,8 +364,8 @@ intel_be_init_device(struct intel_be_device *dev, int fd, unsigned id)
dev->base.buffer_unmap = intel_be_buffer_unmap;
dev->base.buffer_destroy = intel_be_buffer_destroy;
- /* Not used anymore */
- dev->base.surface_buffer_create = NULL;
+ /* Used by softpipe */
+ dev->base.surface_buffer_create = intel_be_surface_buffer_create;
dev->base.fence_reference = intel_be_fence_refunref;
dev->base.fence_signalled = intel_be_fence_signalled;