From 23ffc3a85d6172f8a98d17d7f23610bab808d84e Mon Sep 17 00:00:00 2001
From: Brian Paul <brian.paul@tungstengraphics.com>
Date: Sat, 27 Aug 2005 13:56:08 +0000
Subject: Rearrange the code related to GL_ARB_occlusion_object to generalize
 query objects for future types of queries.

---
 src/mesa/swrast/s_context.c  |  2 +-
 src/mesa/swrast/s_span.c     | 10 ++++++----
 src/mesa/swrast/s_triangle.c | 23 ++++++++++++-----------
 3 files changed, 19 insertions(+), 16 deletions(-)

(limited to 'src/mesa/swrast')

diff --git a/src/mesa/swrast/s_context.c b/src/mesa/swrast/s_context.c
index 5ca3f382e5..93f0c75969 100644
--- a/src/mesa/swrast/s_context.c
+++ b/src/mesa/swrast/s_context.c
@@ -80,7 +80,7 @@ _swrast_update_rasterflags( GLcontext *ctx )
       rasterMask |= CLIP_BIT;
    }
 
-   if (ctx->Occlusion.Active)
+   if (ctx->Query.CurrentOcclusionObject)
       rasterMask |= OCCLUSION_BIT;
 
 
diff --git a/src/mesa/swrast/s_span.c b/src/mesa/swrast/s_span.c
index d2cafeb7ac..f99fa4cbaf 100644
--- a/src/mesa/swrast/s_span.c
+++ b/src/mesa/swrast/s_span.c
@@ -850,11 +850,12 @@ _swrast_write_index_span( GLcontext *ctx, struct sw_span *span)
    }
 
 #if FEATURE_ARB_occlusion_query
-   if (ctx->Occlusion.Active) {
+   if (ctx->Query.CurrentOcclusionObject) {
       /* update count of 'passed' fragments */
+      struct gl_query_object *q = ctx->Query.CurrentOcclusionObject;
       GLuint i;
       for (i = 0; i < span->end; i++)
-         ctx->Occlusion.PassedCounter += span->array->mask[i];
+         q->Result += span->array->mask[i];
    }
 #endif
 
@@ -1215,11 +1216,12 @@ _swrast_write_rgba_span( GLcontext *ctx, struct sw_span *span)
    }
 
 #if FEATURE_ARB_occlusion_query
-   if (ctx->Occlusion.Active) {
+   if (ctx->Query.CurrentOcclusionObject) {
       /* update count of 'passed' fragments */
+      struct gl_query_object *q = ctx->Query.CurrentOcclusionObject;
       GLuint i;
       for (i = 0; i < span->end; i++)
-         ctx->Occlusion.PassedCounter += span->array->mask[i];
+         q->Result += span->array->mask[i];
    }
 #endif
 
diff --git a/src/mesa/swrast/s_triangle.c b/src/mesa/swrast/s_triangle.c
index 6649d1a51f..29134d02e9 100644
--- a/src/mesa/swrast/s_triangle.c
+++ b/src/mesa/swrast/s_triangle.c
@@ -904,14 +904,15 @@ fast_persp_span(GLcontext *ctx, struct sw_span *span,
  */
 #define NAME occlusion_zless_triangle
 #define INTERP_Z 1
-#define SETUP_CODE						\
-   struct gl_renderbuffer *rb					\
-      = ctx->DrawBuffer->Attachment[BUFFER_DEPTH].Renderbuffer;	\
-   ASSERT(ctx->Depth.Test);					\
-   ASSERT(!ctx->Depth.Mask);					\
-   ASSERT(ctx->Depth.Func == GL_LESS);				\
-   if (!ctx->Occlusion.Active) {				\
-      return;							\
+#define SETUP_CODE							\
+   struct gl_renderbuffer *rb						\
+      = ctx->DrawBuffer->Attachment[BUFFER_DEPTH].Renderbuffer;		\
+   struct gl_query_object *q = ctx->Query.CurrentOcclusionObject;	\
+   ASSERT(ctx->Depth.Test);						\
+   ASSERT(!ctx->Depth.Mask);						\
+   ASSERT(ctx->Depth.Func == GL_LESS);					\
+   if (!q) {								\
+      return;								\
    }
 #define RENDER_SPAN( span )						\
    if (ctx->Visual.depthBits <= 16) {					\
@@ -921,7 +922,7 @@ fast_persp_span(GLcontext *ctx, struct sw_span *span,
       for (i = 0; i < span.end; i++) {					\
          GLdepth z = FixedToDepth(span.z);				\
          if (z < zRow[i]) {						\
-            ctx->Occlusion.PassedCounter++;				\
+            q->Result++;						\
          }								\
          span.z += span.zStep;						\
       }									\
@@ -932,7 +933,7 @@ fast_persp_span(GLcontext *ctx, struct sw_span *span,
          rb->GetPointer(ctx, rb, span.x, span.y);			\
       for (i = 0; i < span.end; i++) {					\
          if ((GLuint)span.z < zRow[i]) {				\
-            ctx->Occlusion.PassedCounter++;				\
+            q->Result++;						\
          }								\
          span.z += span.zStep;						\
       }									\
@@ -1055,7 +1056,7 @@ _swrast_choose_triangle( GLcontext *ctx )
       }
 
       /* special case for occlusion testing */
-      if (ctx->Occlusion.Active &&
+      if (ctx->Query.CurrentOcclusionObject &&
           ctx->Depth.Test &&
           ctx->Depth.Mask == GL_FALSE &&
           ctx->Depth.Func == GL_LESS &&
-- 
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