diff options
| -rw-r--r-- | src/mesa/main/mtypes.h | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/src/mesa/main/mtypes.h b/src/mesa/main/mtypes.h index 6d700ece89e..9f921c4d9fa 100644 --- a/src/mesa/main/mtypes.h +++ b/src/mesa/main/mtypes.h @@ -2832,6 +2832,30 @@ struct gl_program_constants GLuint MaxNativeParameters; /* For shaders */ GLuint MaxUniformComponents; /**< Usually == MaxParameters * 4 */ + + /** + * \name Per-stage input / output limits + * + * Previous to OpenGL 3.2, the intrastage data limits were advertised with + * a single value: GL_MAX_VARYING_COMPONENTS (GL_MAX_VARYING_VECTORS in + * ES). This is stored as \c gl_constants::MaxVarying. + * + * Starting with OpenGL 3.2, the limits are advertised with per-stage + * variables. Each stage as a certain number of outputs that it can feed + * to the next stage and a certain number inputs that it can consume from + * the previous stage. + * + * Vertex shader inputs do not participate this in this accounting. + * These are tracked exclusively by \c gl_program_constants::MaxAttribs. + * + * Fragment shader outputs do not participate this in this accounting. + * These are tracked exclusively by \c gl_constants::MaxDrawBuffers. + */ + /*@{*/ + GLuint MaxInputComponents; + GLuint MaxOutputComponents; + /*@}*/ + /* ES 2.0 and GL_ARB_ES2_compatibility */ struct gl_precision LowFloat, MediumFloat, HighFloat; struct gl_precision LowInt, MediumInt, HighInt; |