main: Refactor _mesa_[update|get]_clamp_fragment_color.

Reviewed-by: Fredrik Höglund <[email protected]>
Signed-off-by: Fredrik Höglund <[email protected]>

6 files changed, 21 insertions, 18 deletions

diff --git a/src/mesa/main/blend.c b/src/mesa/main/blend.c
index ee76b475943..2342555a95d 100644
--- a/src/mesa/main/blend.c
+++ b/src/mesa/main/blend.c
@@ -778,7 +778,7 @@ _mesa_ClampColor(GLenum target, GLenum clamp)
       }
       FLUSH_VERTICES(ctx, _NEW_FRAG_CLAMP);
       ctx->Color.ClampFragmentColor = clamp;
-      _mesa_update_clamp_fragment_color(ctx);
+      _mesa_update_clamp_fragment_color(ctx, ctx->DrawBuffer);
       break;
    case GL_CLAMP_READ_COLOR_ARB:
       ctx->Color.ClampReadColor = clamp;
@@ -807,10 +807,10 @@ get_clamp_color(const struct gl_framebuffer *fb, GLenum clamp)
 }
 
 GLboolean
-_mesa_get_clamp_fragment_color(const struct gl_context *ctx)
+_mesa_get_clamp_fragment_color(const struct gl_context *ctx,
+                               const struct gl_framebuffer *drawFb)
 {
-   return get_clamp_color(ctx->DrawBuffer,
-                                ctx->Color.ClampFragmentColor);
+   return get_clamp_color(drawFb, ctx->Color.ClampFragmentColor);
 }
 
 GLboolean
@@ -830,19 +830,20 @@ _mesa_get_clamp_read_color(const struct gl_context *ctx)
  * Update the ctx->Color._ClampFragmentColor field
  */
 void
-_mesa_update_clamp_fragment_color(struct gl_context *ctx)
+_mesa_update_clamp_fragment_color(struct gl_context *ctx,
+                                  const struct gl_framebuffer *drawFb)
 {
-   struct gl_framebuffer *fb = ctx->DrawBuffer;
-
    /* Don't clamp if:
     * - there is no colorbuffer
     * - all colorbuffers are unsigned normalized, so clamping has no effect
     * - there is an integer colorbuffer
     */
-   if (!fb || !fb->_HasSNormOrFloatColorBuffer || fb->_IntegerColor)
+   if (!drawFb || !drawFb->_HasSNormOrFloatColorBuffer ||
+       drawFb->_IntegerColor)
       ctx->Color._ClampFragmentColor = GL_FALSE;
    else
-      ctx->Color._ClampFragmentColor = _mesa_get_clamp_fragment_color(ctx);
+      ctx->Color._ClampFragmentColor =
+         _mesa_get_clamp_fragment_color(ctx, drawFb);
 }
 
 /**
diff --git a/src/mesa/main/blend.h b/src/mesa/main/blend.h
index 9c1ef7e8592..58e66736ddc 100644
--- a/src/mesa/main/blend.h
+++ b/src/mesa/main/blend.h
@@ -102,7 +102,8 @@ extern void GLAPIENTRY
 _mesa_ClampColor(GLenum target, GLenum clamp);
 
 extern GLboolean
-_mesa_get_clamp_fragment_color(const struct gl_context *ctx);
+_mesa_get_clamp_fragment_color(const struct gl_context *ctx,
+                               const struct gl_framebuffer *drawFb);
 
 extern GLboolean
 _mesa_get_clamp_vertex_color(const struct gl_context *ctx,
@@ -112,7 +113,8 @@ extern GLboolean
 _mesa_get_clamp_read_color(const struct gl_context *ctx);
 
 extern void
-_mesa_update_clamp_fragment_color(struct gl_context *ctx);
+_mesa_update_clamp_fragment_color(struct gl_context *ctx,
+                                  const struct gl_framebuffer *drawFb);
 
 extern void
 _mesa_update_clamp_vertex_color(struct gl_context *ctx,
diff --git a/src/mesa/main/framebuffer.c b/src/mesa/main/framebuffer.c
index 36a953988eb..5c409db2572 100644
--- a/src/mesa/main/framebuffer.c
+++ b/src/mesa/main/framebuffer.c
@@ -692,7 +692,7 @@ _mesa_update_framebuffer(struct gl_context *ctx,
       update_framebuffer(ctx, readFb);
 
    _mesa_update_clamp_vertex_color(ctx, drawFb);
-   _mesa_update_clamp_fragment_color(ctx);
+   _mesa_update_clamp_fragment_color(ctx, drawFb);
 }
 
 
diff --git a/src/mesa/main/get.c b/src/mesa/main/get.c
index 09be715f911..8a6c81aff87 100644
--- a/src/mesa/main/get.c
+++ b/src/mesa/main/get.c
@@ -909,13 +909,13 @@ find_custom_value(struct gl_context *ctx, const struct value_desc *d, union valu
       break;
 
    case GL_FOG_COLOR:
-      if (_mesa_get_clamp_fragment_color(ctx))
+      if (_mesa_get_clamp_fragment_color(ctx, ctx->DrawBuffer))
          COPY_4FV(v->value_float_4, ctx->Fog.Color);
       else
          COPY_4FV(v->value_float_4, ctx->Fog.ColorUnclamped);
       break;
    case GL_COLOR_CLEAR_VALUE:
-      if (_mesa_get_clamp_fragment_color(ctx)) {
+      if (_mesa_get_clamp_fragment_color(ctx, ctx->DrawBuffer)) {
          v->value_float_4[0] = CLAMP(ctx->Color.ClearColor.f[0], 0.0F, 1.0F);
          v->value_float_4[1] = CLAMP(ctx->Color.ClearColor.f[1], 0.0F, 1.0F);
          v->value_float_4[2] = CLAMP(ctx->Color.ClearColor.f[2], 0.0F, 1.0F);
@@ -924,13 +924,13 @@ find_custom_value(struct gl_context *ctx, const struct value_desc *d, union valu
          COPY_4FV(v->value_float_4, ctx->Color.ClearColor.f);
       break;
    case GL_BLEND_COLOR_EXT:
-      if (_mesa_get_clamp_fragment_color(ctx))
+      if (_mesa_get_clamp_fragment_color(ctx, ctx->DrawBuffer))
          COPY_4FV(v->value_float_4, ctx->Color.BlendColor);
       else
          COPY_4FV(v->value_float_4, ctx->Color.BlendColorUnclamped);
       break;
    case GL_ALPHA_TEST_REF:
-      if (_mesa_get_clamp_fragment_color(ctx))
+      if (_mesa_get_clamp_fragment_color(ctx, ctx->DrawBuffer))
          v->value_float = ctx->Color.AlphaRef;
       else
          v->value_float = ctx->Color.AlphaRefUnclamped;
diff --git a/src/mesa/main/texenv.c b/src/mesa/main/texenv.c
index ec521e6c6e5..3edafc0f776 100644
--- a/src/mesa/main/texenv.c
+++ b/src/mesa/main/texenv.c
@@ -646,7 +646,7 @@ _mesa_GetTexEnvfv( GLenum target, GLenum pname, GLfloat *params )
       if (pname == GL_TEXTURE_ENV_COLOR) {
          if(ctx->NewState & (_NEW_BUFFERS | _NEW_FRAG_CLAMP))
             _mesa_update_state(ctx);
-         if (_mesa_get_clamp_fragment_color(ctx))
+         if (_mesa_get_clamp_fragment_color(ctx, ctx->DrawBuffer))
             COPY_4FV( params, texUnit->EnvColor );
          else
             COPY_4FV( params, texUnit->EnvColorUnclamped );
diff --git a/src/mesa/main/texparam.c b/src/mesa/main/texparam.c
index b5d42d3047f..d74134f41b1 100644
--- a/src/mesa/main/texparam.c
+++ b/src/mesa/main/texparam.c
@@ -1709,7 +1709,7 @@ get_tex_parameterfv(struct gl_context *ctx,
 
          if (ctx->NewState & (_NEW_BUFFERS | _NEW_FRAG_CLAMP))
             _mesa_update_state_locked(ctx);
-         if (_mesa_get_clamp_fragment_color(ctx)) {
+         if (_mesa_get_clamp_fragment_color(ctx, ctx->DrawBuffer)) {
             params[0] = CLAMP(obj->Sampler.BorderColor.f[0], 0.0F, 1.0F);
             params[1] = CLAMP(obj->Sampler.BorderColor.f[1], 0.0F, 1.0F);
             params[2] = CLAMP(obj->Sampler.BorderColor.f[2], 0.0F, 1.0F);