Add user preference "GPU Mipmap Generation" under the System/OpenGL

subpanel to calculate image mipmapping on the GPU, saving upload and
calculation time. Default is off just in case.

1 files changed, 10 insertions, 0 deletions

diff --git a/source/blender/makesrna/intern/rna_userdef.c b/source/blender/makesrna/intern/rna_userdef.c
index 84723e95e80..42eb06b137a 100644
--- a/source/blender/makesrna/intern/rna_userdef.c
+++ b/source/blender/makesrna/intern/rna_userdef.c
@@ -144,6 +144,11 @@ static void rna_userdef_anisotropic_update(Main *bmain, Scene *scene, PointerRNA
 	rna_userdef_update(bmain, scene, ptr);
 }
 
+static void rna_userdef_gl_gpu_mipmaps(Main *bmain, Scene *scene, PointerRNA *ptr) {
+	GPU_set_gpu_mipmapping(U.use_gpu_mipmap);
+	rna_userdef_update(bmain, scene, ptr);
+}
+
 static void rna_userdef_gl_texture_limit_update(Main *bmain, Scene *scene, PointerRNA *ptr)
 {
 	GPU_free_images();
@@ -3143,6 +3148,11 @@ static void rna_def_userdef_system(BlenderRNA *brna)
 	RNA_def_property_ui_text(prop, "16 Bit Float Textures", "Use 16 bit per component texture for float images");
 	RNA_def_property_update(prop, 0, "rna_userdef_gl_use_16bit_textures");
 
+	prop = RNA_def_property(srna, "use_gpu_mipmap", PROP_BOOLEAN, PROP_NONE);
+	RNA_def_property_boolean_sdna(prop, NULL, "use_gpu_mipmap", 1);
+	RNA_def_property_ui_text(prop, "GPU Mipmap Generation", "Generate Image Mipmaps on the GPU");
+	RNA_def_property_update(prop, 0, "rna_userdef_gl_gpu_mipmaps");
+
 	prop = RNA_def_property(srna, "use_vertex_buffer_objects", PROP_BOOLEAN, PROP_NONE);
 	RNA_def_property_boolean_negative_sdna(prop, NULL, "gameflags", USER_DISABLE_VBO);
 	RNA_def_property_ui_text(prop, "VBOs",