diff options
Diffstat (limited to 'src/video_core')
| -rw-r--r-- | src/video_core/renderer_opengl/gl_rasterizer.cpp | 13 |
1 files changed, 7 insertions, 6 deletions
diff --git a/src/video_core/renderer_opengl/gl_rasterizer.cpp b/src/video_core/renderer_opengl/gl_rasterizer.cpp index 274c2dbcf..e37acbfac 100644 --- a/src/video_core/renderer_opengl/gl_rasterizer.cpp +++ b/src/video_core/renderer_opengl/gl_rasterizer.cpp @@ -484,8 +484,13 @@ void RasterizerOpenGL::DrawArrays() { GLintptr index_buffer_offset = 0; if (is_indexed) { MICROPROFILE_SCOPE(OpenGL_Index); - index_buffer_offset = - buffer_cache.UploadMemory(regs.index_array.StartAddress(), index_buffer_size); + + // Adjust the index buffer offset so it points to the first desired index. + auto index_start = regs.index_array.StartAddress(); + index_start += static_cast<size_t>(regs.index_array.first) * + static_cast<size_t>(regs.index_array.FormatSizeInBytes()); + + index_buffer_offset = buffer_cache.UploadMemory(index_start, index_buffer_size); } SetupShaders(); @@ -499,10 +504,6 @@ void RasterizerOpenGL::DrawArrays() { if (is_indexed) { const GLint base_vertex{static_cast<GLint>(regs.vb_element_base)}; - // Adjust the index buffer offset so it points to the first desired index. - index_buffer_offset += static_cast<GLintptr>(regs.index_array.first) * - static_cast<GLintptr>(regs.index_array.FormatSizeInBytes()); - if (gpu.state.current_instance > 0) { glDrawElementsInstancedBaseVertexBaseInstance( primitive_mode, regs.index_array.count, |