X-Git-Url: https://git.libre-soc.org/?a=blobdiff_plain;f=src%2Fmesa%2Fstate_tracker%2Fst_atom_viewport.c;h=d10f1840df6ac3db0210a04d7fc07a2ee8f3c627;hb=69a07be3e527dbc2148a4e20c50e60266225f5f2;hp=4b51521470bf962a2b2b479a83ea72bb3796df5f;hpb=c3a8a41faabed4c9b84a6fbaf7a86a089b8fcbba;p=mesa.git

diff --git a/src/mesa/state_tracker/st_atom_viewport.c b/src/mesa/state_tracker/st_atom_viewport.c
index 4b51521470b..d10f1840df6 100644
--- a/src/mesa/state_tracker/st_atom_viewport.c
+++ b/src/mesa/state_tracker/st_atom_viewport.c
@@ -26,8 +26,7 @@
  **************************************************************************/
 
 
-#include "context.h"
-#include "colormac.h"
+#include "main/context.h"
 #include "st_context.h"
 #include "st_atom.h"
 #include "pipe/p_context.h"
@@ -42,14 +41,14 @@
 static void
 update_viewport( struct st_context *st )
 {
-   GLcontext *ctx = st->ctx;
+   struct gl_context *ctx = st->ctx;
    GLfloat yScale, yBias;
 
    /* _NEW_BUFFERS
     */
    if (st_fb_orientation(ctx->DrawBuffer) == Y_0_TOP) {
       yScale = -1;
-      yBias = ctx->DrawBuffer->Height ;
+      yBias = (GLfloat)ctx->DrawBuffer->Height;
    }
    else {
       yScale = 1.0;
@@ -59,12 +58,12 @@ update_viewport( struct st_context *st )
    /* _NEW_VIEWPORT 
     */
    {
-      GLfloat x = ctx->Viewport.X;
-      GLfloat y = ctx->Viewport.Y;
+      GLfloat x = (GLfloat)ctx->Viewport.X;
+      GLfloat y = (GLfloat)ctx->Viewport.Y;
       GLfloat z = ctx->Viewport.Near;
-      GLfloat half_width = ctx->Viewport.Width / 2.0;
-      GLfloat half_height = ctx->Viewport.Height / 2.0;
-      GLfloat half_depth = (ctx->Viewport.Far - ctx->Viewport.Near) / 2.0;
+      GLfloat half_width = (GLfloat)ctx->Viewport.Width * 0.5f;
+      GLfloat half_height = (GLfloat)ctx->Viewport.Height * 0.5f;
+      GLfloat half_depth = (GLfloat)(ctx->Viewport.Far - ctx->Viewport.Near) * 0.5f;
       
       st->state.viewport.scale[0] = half_width;
       st->state.viewport.scale[1] = half_height * yScale;