lib/igt_buf: Extend igt_buf to include two color surfaces

UV FBs have two color surfaces so extend the igt_buf struct accordingly
to support blitting such FBs.

The patch is produced with the coccinelle patch below.

No functional changes.

@@
@@

struct igt_buf {
	...
-	uint32_t stride;
	...
-	uint32_t size;
+	struct {
+		uint32_t stride;
+		uint32_t size;
+	} surface[2];
	...
};

@@
struct igt_buf b;
@@

<...
(
- b.stride
+ b.surface[0].stride
|
- b.size
+ b.surface[0].size
)
...>

@@
struct igt_buf *b;
@@

<...
(
- b->size
+ b->surface[0].size
|
- b->stride
+ b->surface[0].stride
)
...>

@@
identifier I;
expression E1;
expression E2;
@@

(
struct igt_buf I = {
-	.size = E1,
-	.stride = E2,
+	.surface[0] = {
+		.size = E1,
+		.stride = E2,
+	},
};
|
struct igt_buf I = {
-	.size = E1,
+	.surface[0] = {
+		.size = E1,
+	},
};
|
struct igt_buf I = {
-	.stride = E1,
+	.surface[0] = {
+		.stride = E1,
+	},
};
)

v2:
- Rebase on latest upstream. (Mika)

Cc: Mika Kahola <mika.kahola@intel.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: Mika Kahola <mika.kahola@intel.com>

1 files changed, 4 insertions, 2 deletions

diff --git a/lib/intel_batchbuffer.h b/lib/intel_batchbuffer.h
index 63d32188..69580839 100644
--- a/lib/intel_batchbuffer.h
+++ b/lib/intel_batchbuffer.h
@@ -232,12 +232,14 @@ enum i915_compression {
  */
 struct igt_buf {
 	drm_intel_bo *bo;
-	uint32_t stride;
 	uint32_t tiling;
 	enum i915_compression compression;
 	uint32_t bpp;
 	uint32_t *data;
-	uint32_t size;
+	struct {
+		uint32_t stride;
+		uint32_t size;
+	} surface[2];
 	struct {
 		uint32_t offset;
 		uint32_t stride;