Mesa (18.3): radv: Clamp gfx9 image view extents to the allocated image extents.

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Module: Mesa
Branch: 18.3
Commit: a1f6ae4e27413727fc548d0201d7f6663f906e92
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=a1f6ae4e27413727fc548d0201d7f6663f906e92

Author: Bas Nieuwenhuizen <bas at basnieuwenhuizen.nl>
Date:   Sat Nov 24 23:21:05 2018 +0100

radv: Clamp gfx9 image view extents to the allocated image extents.

Mirrors AMDVLK. Looks like if we go over the alignment of height
we actually start to change the addressing. Seems like the extra
miplevels actually work with this.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=108245
Fixes: f6cc15dccd5 "radv/gfx9: fix block compression texture views. (v2)"
Reviewed-by: Dave Airlie <airlied at redhat.com>
Reviewed-by: Samuel Pitoiset <samuel.pitoiset at gmail.com>
(cherry picked from commit 08ea6b9d9bb047603c249468dfe00d7bb9603d5e)

---

 src/amd/vulkan/radv_image.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/src/amd/vulkan/radv_image.c b/src/amd/vulkan/radv_image.c
index a0fa050635..6eb108c7e3 100644
--- a/src/amd/vulkan/radv_image.c
+++ b/src/amd/vulkan/radv_image.c
@@ -1175,8 +1175,6 @@ radv_image_view_init(struct radv_image_view *iview,
 		 if (device->physical_device->rad_info.chip_class >= GFX9 &&
 		     vk_format_is_compressed(image->vk_format) &&
 		     !vk_format_is_compressed(iview->vk_format)) {
-			 unsigned rounded_img_w = util_next_power_of_two(iview->extent.width);
-			 unsigned rounded_img_h = util_next_power_of_two(iview->extent.height);
 			 unsigned lvl_width  = radv_minify(image->info.width , range->baseMipLevel);
 			 unsigned lvl_height = radv_minify(image->info.height, range->baseMipLevel);
 
@@ -1186,8 +1184,8 @@ radv_image_view_init(struct radv_image_view *iview,
 			 lvl_width <<= range->baseMipLevel;
 			 lvl_height <<= range->baseMipLevel;
 
-			 iview->extent.width = CLAMP(lvl_width, iview->extent.width, rounded_img_w);
-			 iview->extent.height = CLAMP(lvl_height, iview->extent.height, rounded_img_h);
+			 iview->extent.width = CLAMP(lvl_width, iview->extent.width, iview->image->surface.u.gfx9.surf_pitch);
+			 iview->extent.height = CLAMP(lvl_height, iview->extent.height, iview->image->surface.u.gfx9.surf_height);
 		 }
 	}