isa/mutter
1
0
Fork 0
mirror of https://github.com/brl/mutter.git synced 2024-11-26 01:50:42 -05:00
Code Issues Packages Projects Releases Wiki Activity

Use GL_NEAREST filter in the draw-and-read get_data texture fallback

Browse Source 
The fallback for when glGetTexImage is not available renders the
texture to the framebuffer to read the data using glReadPixels. This
patch just sets the COGL_MATERIAL_FILTER_NEAREST filter mode on the
material before rendering to avoid linear filtering which would alter
the texture data.
This commit is contained in:
Neil Roberts 2010-07-08 18:31:29 +01:00
parent f8d1955ab7
commit d3ea1ec6f8
1 changed files with 4 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
cogl/cogl-texture.c
View File

@ -1060,6 +1060,10 @@ _cogl_texture_draw_and_read (CoglHandle handle,
"RGBA = REPLACE (TEXTURE)",
NULL);
cogl_material_set_layer_filters (ctx->texture_download_material, 0,
COGL_MATERIAL_FILTER_NEAREST,
COGL_MATERIAL_FILTER_NEAREST);
do_texture_draw_and_read (handle, target_bmp, viewport);
/* Check whether texture has alpha and framebuffer not */