Add support for compute shaders.

[movit] / init.h

diff --git a/init.h b/init.h
index 3af6644facf740b073c94337e86c885483644b4f..23055227a41fde49b91aed18fcb613e80c864428 100644 (file)
--- a/init.h
+++ b/init.h
@@ -56,15 +56,21 @@ extern float movit_texel_subpixel_precision;
 // of errors are stored here.
 //
 // If this value is above 0, we will round off explicitly at the very end
-// of the shader.
+// of the shader. Note the following limitations:
+//
+//   - The measurement is done on linear 8-bit, not any sRGB format,
+//     10-bit output, or the likes.
+//   - This only covers the final pass; intermediates are not covered
+//     (only relevant if you use e.g. GL_SRGB8 intermediates).
 extern int movit_num_wrongly_rounded;
 
-// Whether the GPU in use supports GL_EXT_texture_sRGB.
-extern bool movit_srgb_textures_supported;
-
 // Whether the OpenGL driver (or GPU) in use supports GL_ARB_timer_query.
 extern bool movit_timer_queries_supported;
 
+// Whether the OpenGL driver (or GPU) in use supports compute shaders.
+// Note that certain OpenGL implementations might only allow this in core mode.
+extern bool movit_compute_shaders_supported;
+
 // What shader model we are compiling for. This only affects the choice
 // of a few files (like header.frag); most of the shaders are the same.
 enum MovitShaderModel {