+static void
+copy_image_subdata(struct gl_context *ctx,
+ struct gl_texture_image *srcTexImage,
+ struct gl_renderbuffer *srcRenderbuffer,
+ int srcX, int srcY, int srcZ, int srcLevel,
+ struct gl_texture_image *dstTexImage,
+ struct gl_renderbuffer *dstRenderbuffer,
+ int dstX, int dstY, int dstZ, int dstLevel,
+ int srcWidth, int srcHeight, int srcDepth)
+{
+ /* loop over 2D slices/faces/layers */
+ for (int i = 0; i < srcDepth; ++i) {
+ int newSrcZ = srcZ + i;
+ int newDstZ = dstZ + i;
+
+ if (srcTexImage &&
+ srcTexImage->TexObject->Target == GL_TEXTURE_CUBE_MAP) {
+ /* need to update srcTexImage pointer for the cube face */
+ assert(srcZ + i < MAX_FACES);
+ srcTexImage = srcTexImage->TexObject->Image[srcZ + i][srcLevel];
+ assert(srcTexImage);
+ newSrcZ = 0;
+ }
+
+ if (dstTexImage &&
+ dstTexImage->TexObject->Target == GL_TEXTURE_CUBE_MAP) {
+ /* need to update dstTexImage pointer for the cube face */
+ assert(dstZ + i < MAX_FACES);
+ dstTexImage = dstTexImage->TexObject->Image[dstZ + i][dstLevel];
+ assert(dstTexImage);
+ newDstZ = 0;
+ }
+
+ ctx->Driver.CopyImageSubData(ctx,
+ srcTexImage, srcRenderbuffer,
+ srcX, srcY, newSrcZ,
+ dstTexImage, dstRenderbuffer,
+ dstX, dstY, newDstZ,
+ srcWidth, srcHeight);
+ }
+}
+
+void GLAPIENTRY
+_mesa_CopyImageSubData_no_error(GLuint srcName, GLenum srcTarget, GLint srcLevel,
+ GLint srcX, GLint srcY, GLint srcZ,
+ GLuint dstName, GLenum dstTarget, GLint dstLevel,
+ GLint dstX, GLint dstY, GLint dstZ,
+ GLsizei srcWidth, GLsizei srcHeight, GLsizei srcDepth)
+{
+ struct gl_texture_image *srcTexImage, *dstTexImage;
+ struct gl_renderbuffer *srcRenderbuffer, *dstRenderbuffer;
+
+ GET_CURRENT_CONTEXT(ctx);
+
+ prepare_target(ctx, srcName, srcTarget, srcLevel, srcZ, &srcTexImage,
+ &srcRenderbuffer);
+
+ prepare_target(ctx, dstName, dstTarget, dstLevel, dstZ, &dstTexImage,
+ &dstRenderbuffer);
+
+ copy_image_subdata(ctx, srcTexImage, srcRenderbuffer, srcX, srcY, srcZ,
+ srcLevel, dstTexImage, dstRenderbuffer, dstX, dstY, dstZ,
+ dstLevel, srcWidth, srcHeight, srcDepth);
+}
+