gallivm/llvmpipe: replace 'int stride' with 'int row_stride[MAX_LEVELS]'

The stride depends on the mipmap level.  Rename to row_stride to
distinguish from img_stride for 3D textures.

Fixes incorrect texel addressing in small mipmap levels.

1 files changed, 4 insertions, 3 deletions

diff --git a/src/gallium/drivers/llvmpipe/lp_jit.c b/src/gallium/drivers/llvmpipe/lp_jit.c
index 08c8f93794d..5887613120d 100644
--- a/src/gallium/drivers/llvmpipe/lp_jit.c
+++ b/src/gallium/drivers/llvmpipe/lp_jit.c
@@ -57,7 +57,8 @@ lp_jit_init_globals(struct llvmpipe_screen *screen)
       elem_types[LP_JIT_TEXTURE_HEIGHT] = LLVMInt32Type();
       elem_types[LP_JIT_TEXTURE_DEPTH] = LLVMInt32Type();
       elem_types[LP_JIT_TEXTURE_LAST_LEVEL] = LLVMInt32Type();
-      elem_types[LP_JIT_TEXTURE_STRIDE] = LLVMInt32Type();
+      elem_types[LP_JIT_TEXTURE_ROW_STRIDE] =
+         LLVMArrayType(LLVMInt32Type(), LP_MAX_TEXTURE_2D_LEVELS);
       elem_types[LP_JIT_TEXTURE_DATA] =
          LLVMArrayType(LLVMPointerType(LLVMInt8Type(), 0),
                        LP_MAX_TEXTURE_2D_LEVELS);
@@ -76,9 +77,9 @@ lp_jit_init_globals(struct llvmpipe_screen *screen)
       LP_CHECK_MEMBER_OFFSET(struct lp_jit_texture, last_level,
                              screen->target, texture_type,
                              LP_JIT_TEXTURE_LAST_LEVEL);
-      LP_CHECK_MEMBER_OFFSET(struct lp_jit_texture, stride,
+      LP_CHECK_MEMBER_OFFSET(struct lp_jit_texture, row_stride,
                              screen->target, texture_type,
-                             LP_JIT_TEXTURE_STRIDE);
+                             LP_JIT_TEXTURE_ROW_STRIDE);
       LP_CHECK_MEMBER_OFFSET(struct lp_jit_texture, data,
                              screen->target, texture_type,
                              LP_JIT_TEXTURE_DATA);