From 889d8aaab3e8d7370f1f14e846ec06b3b601b0fb Mon Sep 17 00:00:00 2001
From: wwylele <wwylele@gmail.com>
Date: Sun, 11 Mar 2018 13:31:29 +0200
Subject: [PATCH] gl_rasterizer/cache: only reallocate cubemap when size/format
mismatch
---
.../renderer_opengl/gl_rasterizer_cache.cpp | 14 +++++++++++---
1 file changed, 11 insertions(+), 3 deletions(-)
diff --git a/src/video_core/renderer_opengl/gl_rasterizer_cache.cpp b/src/video_core/renderer_opengl/gl_rasterizer_cache.cpp
index 81ba557d9..1500519fc 100644
--- a/src/video_core/renderer_opengl/gl_rasterizer_cache.cpp
+++ b/src/video_core/renderer_opengl/gl_rasterizer_cache.cpp
@@ -1264,9 +1264,17 @@ void RasterizerCacheOpenGL::FillTextureCube(GLuint dest_handle,
state.Apply();
glActiveTexture(TextureUnits::TextureCube.Enum());
FormatTuple format_tuple = GetFormatTuple(faces[0].surface->pixel_format);
- for (auto& face : faces) {
- glTexImage2D(face.gl_face, 0, format_tuple.internal_format, scaled_size, scaled_size, 0,
- format_tuple.format, format_tuple.type, nullptr);
+
+ GLint cur_size, cur_format;
+ glGetTexLevelParameteriv(GL_TEXTURE_CUBE_MAP_POSITIVE_X, 0, GL_TEXTURE_WIDTH, &cur_size);
+ glGetTexLevelParameteriv(GL_TEXTURE_CUBE_MAP_POSITIVE_X, 0, GL_TEXTURE_INTERNAL_FORMAT,
+ &cur_format);
+
+ if (cur_size != scaled_size || cur_format != format_tuple.internal_format) {
+ for (auto& face : faces) {
+ glTexImage2D(face.gl_face, 0, format_tuple.internal_format, scaled_size, scaled_size, 0,
+ format_tuple.format, format_tuple.type, nullptr);
+ }
}
state.draw.read_framebuffer = read_framebuffer.handle;