From 9ff8ace465dd0a3513d441a85ea73d7e6c589c67 Mon Sep 17 00:00:00 2001
From: "Ryan C. Gordon" <icculus@icculus.org>
Date: Wed, 18 Jun 2008 01:22:34 -0400
Subject: [PATCH] Moved some booleans to true bitfields.

--HG--
branch : trunk
---
 mojoshader.c        | 20 ++++++--------------
 mojoshader_opengl.c | 20 ++++++++++----------
 2 files changed, 16 insertions(+), 24 deletions(-)

diff --git a/mojoshader.c b/mojoshader.c
index 887edfed..f3a0d3d4 100644
--- a/mojoshader.c
+++ b/mojoshader.c
@@ -320,14 +320,6 @@ typedef struct
 } SourceArgInfo;
 
 
-// !!! FIXME: get rid of this. use a bitfield instead.
-typedef enum
-{
-    // Specific to GLSL profile...
-    CTX_FLAGS_GLSL_LIT_OPCODE = (1 << 0),
-    CTX_FLAGS_MASK = 0xFFFFFFFF
-} ContextFlags;
-
 
 #define SCRATCH_BUFFER_SIZE 128
 #define SCRATCH_BUFFERS 32
@@ -375,11 +367,7 @@ struct Context
     int instruction_count;
     uint32 instruction_controls;
     uint32 previous_opcode;
-    ContextFlags flags;
-    int predicated;
     int max_constreg;
-    int uniform_array;
-    int support_nv2;
     int loops;
     int reps;
     int cmps;
@@ -397,6 +385,10 @@ struct Context
     RegisterList attributes;
     int sampler_count;
     RegisterList samplers;
+    int predicated:1;
+    int uniform_array:1;
+    int support_nv2:1;
+    int glsl_generated_lit_opcode:1;
 };
 
 
@@ -2648,10 +2640,10 @@ static void emit_GLSL_LIT_helper(Context *ctx)
 {
     const char *maxp = "127.9961f"; // value from the dx9 reference.
 
-    if (ctx->flags & CTX_FLAGS_GLSL_LIT_OPCODE)
+    if (ctx->glsl_generated_lit_opcode)
         return;
 
-    ctx->flags = (ContextFlags) (ctx->flags | CTX_FLAGS_GLSL_LIT_OPCODE);
+    ctx->glsl_generated_lit_opcode = 1;
 
     push_output(ctx, &ctx->helpers);
     output_line(ctx, "const vec4 LIT(const vec4 src)");
diff --git a/mojoshader_opengl.c b/mojoshader_opengl.c
index 2c12fa84..a154d1b0 100644
--- a/mojoshader_opengl.c
+++ b/mojoshader_opengl.c
@@ -140,16 +140,16 @@ struct MOJOSHADER_glContext
     char profile[16];
 
     // Extensions...
-    int have_base_opengl;
-    int have_GL_ARB_vertex_program;
-    int have_GL_ARB_fragment_program;
-    int have_GL_NV_vertex_program2_option;
-    int have_GL_NV_fragment_program2;
-    int have_GL_ARB_shader_objects;
-    int have_GL_ARB_vertex_shader;
-    int have_GL_ARB_fragment_shader;
-    int have_GL_ARB_shading_language_100;
-    int have_GL_NV_half_float;
+    int have_base_opengl:1;
+    int have_GL_ARB_vertex_program:1;
+    int have_GL_ARB_fragment_program:1;
+    int have_GL_NV_vertex_program2_option:1;
+    int have_GL_NV_fragment_program2:1;
+    int have_GL_ARB_shader_objects:1;
+    int have_GL_ARB_vertex_shader:1;
+    int have_GL_ARB_fragment_shader:1;
+    int have_GL_ARB_shading_language_100:1;
+    int have_GL_NV_half_float:1;
 
     // Entry points...
     PFNGLGETSTRINGPROC glGetString;