mesa: make texture BorderColor a union of float/int/uint

When we have integer-valued texture formats, the texture border color
must also store integer and uint values.

With GL 3.0, the new glTexParameterIiv() and glTexParameterIuiv() functions
can set the border color to int or uint values.

1 files changed, 9 insertions, 12 deletions

diff --git a/src/mesa/main/texparam.c b/src/mesa/main/texparam.c
index 73db7d713c..474b950def 100644
--- a/src/mesa/main/texparam.c
+++ b/src/mesa/main/texparam.c
@@ -511,10 +511,7 @@ set_tex_parameterf(GLcontext *ctx,
 
    case GL_TEXTURE_BORDER_COLOR:
       flush(ctx, texObj);
-      texObj->BorderColor[RCOMP] = params[0];
-      texObj->BorderColor[GCOMP] = params[1];
-      texObj->BorderColor[BCOMP] = params[2];
-      texObj->BorderColor[ACOMP] = params[3];
+      COPY_4V(texObj->BorderColor.f, params);
       return GL_TRUE;
 
    default:
@@ -1008,10 +1005,10 @@ _mesa_GetTexParameterfv( GLenum target, GLenum pname, GLfloat *params )
          *params = ENUM_TO_FLOAT(obj->WrapR);
          break;
       case GL_TEXTURE_BORDER_COLOR:
-         params[0] = CLAMP(obj->BorderColor[0], 0.0F, 1.0F);
-         params[1] = CLAMP(obj->BorderColor[1], 0.0F, 1.0F);
-         params[2] = CLAMP(obj->BorderColor[2], 0.0F, 1.0F);
-         params[3] = CLAMP(obj->BorderColor[3], 0.0F, 1.0F);
+         params[0] = CLAMP(obj->BorderColor.f[0], 0.0F, 1.0F);
+         params[1] = CLAMP(obj->BorderColor.f[1], 0.0F, 1.0F);
+         params[2] = CLAMP(obj->BorderColor.f[2], 0.0F, 1.0F);
+         params[3] = CLAMP(obj->BorderColor.f[3], 0.0F, 1.0F);
          break;
       case GL_TEXTURE_RESIDENT:
          {
@@ -1166,10 +1163,10 @@ _mesa_GetTexParameteriv( GLenum target, GLenum pname, GLint *params )
       case GL_TEXTURE_BORDER_COLOR:
          {
             GLfloat b[4];
-            b[0] = CLAMP(obj->BorderColor[0], 0.0F, 1.0F);
-            b[1] = CLAMP(obj->BorderColor[1], 0.0F, 1.0F);
-            b[2] = CLAMP(obj->BorderColor[2], 0.0F, 1.0F);
-            b[3] = CLAMP(obj->BorderColor[3], 0.0F, 1.0F);
+            b[0] = CLAMP(obj->BorderColor.f[0], 0.0F, 1.0F);
+            b[1] = CLAMP(obj->BorderColor.f[1], 0.0F, 1.0F);
+            b[2] = CLAMP(obj->BorderColor.f[2], 0.0F, 1.0F);
+            b[3] = CLAMP(obj->BorderColor.f[3], 0.0F, 1.0F);
             params[0] = FLOAT_TO_INT(b[0]);
             params[1] = FLOAT_TO_INT(b[1]);
             params[2] = FLOAT_TO_INT(b[2]);