mesa: add gl_program::Input/OutputFlags[] array

These arrays will indicate per-input or per-output options for vertex/fragment
programs such as centroid-sampling and invariance.

(cherry picked from commit b730d0d3e9b202b17a0815cb820fc9905f35cb98)

2 files changed, 5 insertions, 0 deletions

diff --git a/src/mesa/main/config.h b/src/mesa/main/config.h
index 5e9a4f89394..34ab77d13ed 100644
--- a/src/mesa/main/config.h
+++ b/src/mesa/main/config.h
@@ -191,6 +191,8 @@
 #define MAX_UNIFORMS 128   /**< number of float components */
 #define MAX_VARYING 8      /**< number of float[4] vectors */
 #define MAX_SAMPLERS 8
+#define MAX_PROGRAM_INPUTS 32
+#define MAX_PROGRAM_OUTPUTS 32
 /*@}*/
 
 /** For GL_NV_vertex_program */
diff --git a/src/mesa/main/mtypes.h b/src/mesa/main/mtypes.h
index 732de2bb432..e241fe188ce 100644
--- a/src/mesa/main/mtypes.h
+++ b/src/mesa/main/mtypes.h
@@ -1894,10 +1894,13 @@ struct gl_program
 
    GLbitfield InputsRead;     /**< Bitmask of which input regs are read */
    GLbitfield OutputsWritten; /**< Bitmask of which output regs are written to */
+   GLbitfield InputFlags[MAX_PROGRAM_INPUTS];   /**< PROG_PARAM_BIT_x flags */
+   GLbitfield OutputFlags[MAX_PROGRAM_OUTPUTS]; /**< PROG_PARAM_BIT_x flags */
    GLbitfield TexturesUsed[MAX_TEXTURE_IMAGE_UNITS];  /**< TEXTURE_x_BIT bitmask */
    GLbitfield SamplersUsed;   /**< Bitfield of which samplers are used */
    GLbitfield ShadowSamplers; /**< Texture units used for shadow sampling. */
 
+
    /** Named parameters, constants, etc. from program text */
    struct gl_program_parameter_list *Parameters;
    /** Numbered local parameters */