Naive implementation of IF/ELSE/ENDIF.

Handle TGSI labels correctly.
Enhance MESA opcode info queries.

1 files changed, 25 insertions, 0 deletions

diff --git a/src/mesa/pipe/tgsi/core/tgsi_exec.h b/src/mesa/pipe/tgsi/core/tgsi_exec.h
index d2ff40cabb..b92d1b5918 100644
--- a/src/mesa/pipe/tgsi/core/tgsi_exec.h
+++ b/src/mesa/pipe/tgsi/core/tgsi_exec.h
@@ -85,6 +85,29 @@ struct tgsi_exec_labels
 #define TGSI_EXEC_NUM_TEMPS   (32 + 4)
 #define TGSI_EXEC_NUM_ADDRS   1
 
+/* XXX: This is temporary */
+struct tgsi_exec_cond_regs
+{
+   struct tgsi_exec_vector    TempsAddrs[TGSI_EXEC_NUM_TEMPS + TGSI_EXEC_NUM_ADDRS];
+   struct tgsi_exec_vector    Outputs[2];    /* XXX: That's just enough for fragment shader only! */
+};
+
+/* XXX: This is temporary */
+struct tgsi_exec_cond_state
+{
+   struct tgsi_exec_cond_regs IfPortion;
+   struct tgsi_exec_cond_regs ElsePortion;
+   GLuint                     Condition;
+   GLboolean                  WasElse;
+};
+
+/* XXX: This is temporary */
+struct tgsi_exec_cond_stack
+{
+   struct tgsi_exec_cond_state   States[8];
+   GLuint                        Index;      /* into States[] */
+};
+
 struct tgsi_exec_machine
 {
    /*
@@ -112,6 +135,8 @@ struct tgsi_exec_machine
    GLuint                        Processor;
 
    GLuint                        *Primitives;
+
+   struct tgsi_exec_cond_stack   CondStack;
 #if XXX_SSE
    struct x86_function           Function;
 #endif