mesa: Implement TEXTURE_IMMUTABLE_LEVELS for ES 3.0.
NOTE: This is a candidate for the 9.1 branch.
Fixes piglit's texture-immutable-levels test.
Reported-by: Marek Olšák <maraeo@gmail.com>
Reviewed-by: Brian Paul <brianp@vmware.com>
diff --git a/src/mesa/main/mtypes.h b/src/mesa/main/mtypes.h
index 8c38aa7..a0e7e28 100644
--- a/src/mesa/main/mtypes.h
+++ b/src/mesa/main/mtypes.h
@@ -1179,6 +1179,7 @@
GLfloat Priority; /**< in [0,1] */
GLint BaseLevel; /**< min mipmap level, OpenGL 1.2 */
GLint MaxLevel; /**< max mipmap level, OpenGL 1.2 */
+ GLint ImmutableLevels; /**< ES 3.0 / ARB_texture_view */
GLint _MaxLevel; /**< actual max mipmap level (q in the spec) */
GLfloat _MaxLambda; /**< = _MaxLevel - BaseLevel (q - b in spec) */
GLint CropRect[4]; /**< GL_OES_draw_texture */
diff --git a/src/mesa/main/texparam.c b/src/mesa/main/texparam.c
index 120845b..bd2f751 100644
--- a/src/mesa/main/texparam.c
+++ b/src/mesa/main/texparam.c
@@ -1460,6 +1460,12 @@
*params = (GLfloat) obj->Immutable;
break;
+ case GL_TEXTURE_IMMUTABLE_LEVELS:
+ if (!_mesa_is_gles3(ctx))
+ goto invalid_pname;
+ *params = (GLfloat) obj->ImmutableLevels;
+ break;
+
case GL_REQUIRED_TEXTURE_IMAGE_UNITS_OES:
if (!_mesa_is_gles(ctx) || !ctx->Extensions.OES_EGL_image_external)
goto invalid_pname;
@@ -1637,6 +1643,12 @@
*params = (GLint) obj->Immutable;
break;
+ case GL_TEXTURE_IMMUTABLE_LEVELS:
+ if (!_mesa_is_gles3(ctx))
+ goto invalid_pname;
+ *params = obj->ImmutableLevels;
+ break;
+
case GL_REQUIRED_TEXTURE_IMAGE_UNITS_OES:
if (!_mesa_is_gles(ctx) || !ctx->Extensions.OES_EGL_image_external)
goto invalid_pname;
diff --git a/src/mesa/main/texstorage.c b/src/mesa/main/texstorage.c
index 00f19ba..675fd74 100644
--- a/src/mesa/main/texstorage.c
+++ b/src/mesa/main/texstorage.c
@@ -397,6 +397,7 @@
}
texObj->Immutable = GL_TRUE;
+ texObj->ImmutableLevels = levels;
}
}