Commit d668a13c04712ca4da7d2892cd3fba32cdd30887
2025-03-14T17:18:18
Fix sync issue between XFB output and texture buffer input For the following scenario, where the first draw writes to the transform feedback buffer and the second draw reads from the same buffer as a texture buffer, it is necessary to end the render pass between the two draws and add a pipeline barrier. // xfb write to tex_buffer glBindBufferBase(GL_TRANSFORM_FEEDBACK_BUFFER, 0, tex_buffer); glBeginTransformFeedback(); glDrawArrays(); glEndTransformFeedback(); // Draw with texture buffer tex_buffer glBindBuffer(GL_TEXTURE_BUFFER_EXT, tex_buffer); glTexBufferEXT(GL_TEXTURE_BUFFER_EXT, ..., tex_buffer); glDraw(); Bug: angleproject:403319685 Change-Id: I9381a336ce61dea696c93158bb617a41afcfc583 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/6356070 Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org> Auto-Submit: Mavis Deng <mavis.deng@arm.com> Reviewed-by: Charlie Lao <cclao@google.com> Commit-Queue: Charlie Lao <cclao@google.com>