dri: Take the base image size into account when computing

first level of the mipmap.  fix #16210

2 files changed, 2 insertions, 0 deletions

diff --git a/src/mesa/drivers/dri/common/texmem.c b/src/mesa/drivers/dri/common/texmem.c
index b0e8c4c1c28..caabac3448f 100644
--- a/src/mesa/drivers/dri/common/texmem.c
+++ b/src/mesa/drivers/dri/common/texmem.c
@@ -1278,6 +1278,7 @@ driCalculateTextureFirstLastLevel( driTextureObject * t )
       else {
 	 firstLevel = tObj->BaseLevel + (GLint)(tObj->MinLod + 0.5);
 	 firstLevel = MAX2(firstLevel, tObj->BaseLevel);
+	 firstLevel = MIN2(firstLevel, tObj->BaseLevel + baseImage->MaxLog2);
 	 lastLevel = tObj->BaseLevel + (GLint)(tObj->MaxLod + 0.5);
 	 lastLevel = MAX2(lastLevel, t->tObj->BaseLevel);
 	 lastLevel = MIN2(lastLevel, t->tObj->BaseLevel + baseImage->MaxLog2);
diff --git a/src/mesa/drivers/dri/intel/intel_tex_validate.c b/src/mesa/drivers/dri/intel/intel_tex_validate.c
index d260a721d9a..992c75c519d 100644
--- a/src/mesa/drivers/dri/intel/intel_tex_validate.c
+++ b/src/mesa/drivers/dri/intel/intel_tex_validate.c
@@ -43,6 +43,7 @@ intel_calculate_first_last_level(struct intel_texture_object *intelObj)
 #ifdef I915
          firstLevel = tObj->BaseLevel + (GLint) (tObj->MinLod + 0.5);
          firstLevel = MAX2(firstLevel, tObj->BaseLevel);
+         firstLevel = MIN2(firstLevel, tObj->BaseLevel + baseImage->MaxLog2);
          lastLevel = tObj->BaseLevel + (GLint) (tObj->MaxLod + 0.5);
          lastLevel = MAX2(lastLevel, tObj->BaseLevel);
          lastLevel = MIN2(lastLevel, tObj->BaseLevel + baseImage->MaxLog2);