+copy_texture_sub_image(struct gl_context *ctx, GLuint dims,
+ struct gl_texture_object *texObj,
+ GLenum target, GLint level,
+ GLint xoffset, GLint yoffset, GLint zoffset,
+ GLint x, GLint y, GLsizei width, GLsizei height)
+{
+ struct gl_texture_image *texImage;
+
+ _mesa_lock_texture(ctx, texObj);
+
+ texImage = _mesa_select_tex_image(texObj, target, level);
+
+ /* If we have a border, offset=-1 is legal. Bias by border width. */
+ switch (dims) {
+ case 3:
+ if (target != GL_TEXTURE_2D_ARRAY)
+ zoffset += texImage->Border;
+ /* fall-through */
+ case 2:
+ if (target != GL_TEXTURE_1D_ARRAY)
+ yoffset += texImage->Border;
+ /* fall-through */
+ case 1:
+ xoffset += texImage->Border;
+ }
+
+ if (_mesa_clip_copytexsubimage(ctx, &xoffset, &yoffset, &x, &y,
+ &width, &height)) {
+ struct gl_renderbuffer *srcRb =
+ get_copy_tex_image_source(ctx, texImage->TexFormat);
+
+ copytexsubimage_by_slice(ctx, texImage, dims, xoffset, yoffset, zoffset,
+ srcRb, x, y, width, height);
+
+ check_gen_mipmap(ctx, target, texObj, level);
+
+ /* NOTE: Don't signal _NEW_TEXTURE_OBJECT since we've only changed
+ * the texel data, not the texture format, size, etc.
+ */
+ }
+
+ _mesa_unlock_texture(ctx, texObj);
+}
+
+
+static void
+copy_texture_sub_image_err(struct gl_context *ctx, GLuint dims,
+ struct gl_texture_object *texObj,
+ GLenum target, GLint level,
+ GLint xoffset, GLint yoffset, GLint zoffset,
+ GLint x, GLint y, GLsizei width, GLsizei height,
+ const char *caller)
+{
+ FLUSH_VERTICES(ctx, 0);
+
+ if (MESA_VERBOSE & (VERBOSE_API|VERBOSE_TEXTURE))
+ _mesa_debug(ctx, "%s %s %d %d %d %d %d %d %d %d\n", caller,
+ _mesa_enum_to_string(target),
+ level, xoffset, yoffset, zoffset, x, y, width, height);
+
+ if (ctx->NewState & NEW_COPY_TEX_STATE)
+ _mesa_update_state(ctx);
+
+ if (copytexsubimage_error_check(ctx, dims, texObj, target, level,
+ xoffset, yoffset, zoffset,
+ width, height, caller)) {
+ return;
+ }
+
+ copy_texture_sub_image(ctx, dims, texObj, target, level, xoffset, yoffset,
+ zoffset, x, y, width, height);
+}
+
+
+static void
+copy_texture_sub_image_no_error(struct gl_context *ctx, GLuint dims,
+ struct gl_texture_object *texObj,
+ GLenum target, GLint level,
+ GLint xoffset, GLint yoffset, GLint zoffset,
+ GLint x, GLint y, GLsizei width, GLsizei height)
+{
+ FLUSH_VERTICES(ctx, 0);
+
+ if (ctx->NewState & NEW_COPY_TEX_STATE)
+ _mesa_update_state(ctx);
+
+ copy_texture_sub_image(ctx, dims, texObj, target, level, xoffset, yoffset,
+ zoffset, x, y, width, height);
+}
+
+
+/**
+ * Implement the glCopyTexImage1/2D() functions.
+ */
+static ALWAYS_INLINE void