remove STENCIL_MAX

diff --git a/src/mesa/main/mtypes.h b/src/mesa/main/mtypes.h
index 0c3a63d2e3e0c5734a04c142e4aa7a1bb29edc68..85b15b8399ec13e1bee39cc94edc487bb6b678d7 100644 (file)
--- a/src/mesa/main/mtypes.h
+++ b/src/mesa/main/mtypes.h
@@ -77,10 +77,8 @@
  */
 #if STENCIL_BITS==8
    typedef GLubyte GLstencil;
-#  define STENCIL_MAX 0xff
 #elif STENCIL_BITS==16
    typedef GLushort GLstencil;
-#  define STENCIL_MAX 0xffff
 #else
 #  error "illegal number of stencil bits"
 #endif

diff --git a/src/mesa/swrast/s_stencil.c b/src/mesa/swrast/s_stencil.c
index d8e49cbe4158db1282edc8d9ec6f9c4b9d098ea1..f0d8bef39c2603330a66a284cee9236f908ad3c9 100644 (file)
--- a/src/mesa/swrast/s_stencil.c
+++ b/src/mesa/swrast/s_stencil.c
@@ -69,6 +69,7 @@ apply_stencil_op( const GLcontext *ctx, GLenum oper, GLuint face,
    const GLstencil ref = ctx->Stencil.Ref[face];
    const GLstencil wrtmask = ctx->Stencil.WriteMask[face];
    const GLstencil invmask = (GLstencil) (~wrtmask);
+   const GLstencil stencilMax = (1 << ctx->DrawBuffer->Visual.stencilBits) - 1;
    GLuint i;
 
    switch (oper) {
@@ -113,7 +114,7 @@ apply_stencil_op( const GLcontext *ctx, GLenum oper, GLuint face,
            for (i=0;i<n;i++) {
               if (mask[i]) {
                  GLstencil s = stencil[i];
-                 if (s < STENCIL_MAX) {
+                 if (s < stencilMax) {
                     stencil[i] = (GLstencil) (s+1);
                  }
               }
@@ -124,7 +125,7 @@ apply_stencil_op( const GLcontext *ctx, GLenum oper, GLuint face,
               if (mask[i]) {
                  /* VERIFY logic of adding 1 to a write-masked value */
                  GLstencil s = stencil[i];
-                 if (s < STENCIL_MAX) {
+                 if (s < stencilMax) {
                     stencil[i] = (GLstencil) ((invmask & s) | (wrtmask & (s+1)));
                  }
               }
@@ -530,6 +531,7 @@ apply_stencil_op_to_pixels( GLcontext *ctx,
 {
    struct gl_framebuffer *fb = ctx->DrawBuffer;
    struct gl_renderbuffer *rb = fb->Attachment[BUFFER_STENCIL].Renderbuffer;
+   const GLstencil stencilMax = (1 << fb->Visual.stencilBits) - 1;
    const GLstencil ref = ctx->Stencil.Ref[face];
    const GLstencil wrtmask = ctx->Stencil.WriteMask[face];
    const GLstencil invmask = (GLstencil) (~wrtmask);
@@ -585,7 +587,7 @@ apply_stencil_op_to_pixels( GLcontext *ctx,
            for (i=0;i<n;i++) {
               if (mask[i]) {
                   GLstencil *sptr = STENCIL_ADDRESS( x[i], y[i] );
-                 if (*sptr < STENCIL_MAX) {
+                 if (*sptr < stencilMax) {
                     *sptr = (GLstencil) (*sptr + 1);
                  }
               }
@@ -595,7 +597,7 @@ apply_stencil_op_to_pixels( GLcontext *ctx,
            for (i=0;i<n;i++) {
               if (mask[i]) {
                   GLstencil *sptr = STENCIL_ADDRESS( x[i], y[i] );
-                 if (*sptr < STENCIL_MAX) {
+                 if (*sptr < stencilMax) {
                     *sptr = (GLstencil) ((invmask & *sptr) | (wrtmask & (*sptr+1)));
                  }
               }