glTexSubImage(), glCopyTexSubImage() and glCompressedTexSubImage()
only change the texel data, not other state like texture size or format.
If a driver really needs do something special it can hook into the
corresponding driver functions or Map/UnmapTextureImage().
This should avoid some needless state validation effort.
---
src/mesa/main/teximage.c | 12 +++++++++---
1 file changed, 9 insertions(+), 3 deletions(-)
diff --git a/src/mesa/main/teximage.c b/src/mesa/main/teximage.c
index 6f84b38..4d635fe 100644
--- a/src/mesa/main/teximage.c
+++ b/src/mesa/main/teximage.c
@@ -3442,7 +3442,9 @@ texsubimage(struct gl_context *ctx, GLuint dims, GLenum
target, GLint level,
check_gen_mipmap(ctx, target, texObj, level);
- ctx->NewState |= _NEW_TEXTURE;
+ /* NOTE: Don't signal _NEW_TEXTURE since we've only changed
+ * the texel data, not the texture format, size, etc.
+ */
}
}
_mesa_unlock_texture(ctx, texObj);
@@ -3729,7 +3731,9 @@ copytexsubimage(struct gl_context *ctx, GLuint dims,
GLenum target, GLint level,
check_gen_mipmap(ctx, target, texObj, level);
- ctx->NewState |= _NEW_TEXTURE;
+ /* NOTE: Don't signal _NEW_TEXTURE since we've only changed
+ * the texel data, not the texture format, size, etc.
+ */
}
}
_mesa_unlock_texture(ctx, texObj);
@@ -3954,7 +3958,9 @@ compressed_tex_sub_image(GLuint dims, GLenum target,
GLint level,
check_gen_mipmap(ctx, target, texObj, level);
- ctx->NewState |= _NEW_TEXTURE;
+ /* NOTE: Don't signal _NEW_TEXTURE since we've only changed
+ * the texel data, not the texture format, size, etc.
+ */
}
}
_mesa_unlock_texture(ctx, texObj);
--
1.7.10.4
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