mesa: Add "shader/" path to #include statements in shader parser/lexer sources

[mesa.git] / src / mesa / state_tracker / st_atom_scissor.c

diff --git a/src/mesa/state_tracker/st_atom_scissor.c b/src/mesa/state_tracker/st_atom_scissor.c
index 05a9f3eed1804423674ac76ef51b0418bc78fb20..3fd59e1945c2677b2de1cf8bbc3fd3388c7f50a8 100644 (file)
--- a/src/mesa/state_tracker/st_atom_scissor.c
+++ b/src/mesa/state_tracker/st_atom_scissor.c
@@ -44,6 +44,7 @@ update_scissor( struct st_context *st )
 {
    struct pipe_scissor_state scissor;
    const struct gl_framebuffer *fb = st->ctx->DrawBuffer;
+   GLint miny, maxy;
 
    scissor.minx = 0;
    scissor.miny = 0;
@@ -51,14 +52,14 @@ update_scissor( struct st_context *st )
    scissor.maxy = fb->Height;
 
    if (st->ctx->Scissor.Enabled) {
-      if (st->ctx->Scissor.X > scissor.minx)
+      if ((GLuint)st->ctx->Scissor.X > scissor.minx)
          scissor.minx = st->ctx->Scissor.X;
-      if (st->ctx->Scissor.Y > scissor.miny)
+      if ((GLuint)st->ctx->Scissor.Y > scissor.miny)
          scissor.miny = st->ctx->Scissor.Y;
 
-      if (st->ctx->Scissor.X + st->ctx->Scissor.Width < scissor.maxx)
+      if ((GLuint)st->ctx->Scissor.X + st->ctx->Scissor.Width < scissor.maxx)
          scissor.maxx = st->ctx->Scissor.X + st->ctx->Scissor.Width;
-      if (st->ctx->Scissor.Y + st->ctx->Scissor.Height < scissor.maxy)
+      if ((GLuint)st->ctx->Scissor.Y + st->ctx->Scissor.Height < scissor.maxy)
          scissor.maxy = st->ctx->Scissor.Y + st->ctx->Scissor.Height;
 
       /* check for null space */
@@ -66,6 +67,13 @@ update_scissor( struct st_context *st )
          scissor.minx = scissor.miny = scissor.maxx = scissor.maxy = 0;
    }
 
+   /* Now invert Y.  Pipe drivers use the convention Y=0=top for surfaces
+    */
+   miny = fb->Height - scissor.maxy;
+   maxy = fb->Height - scissor.miny;
+   scissor.miny = miny;
+   scissor.maxy = maxy;
+
    if (memcmp(&scissor, &st->state.scissor, sizeof(scissor)) != 0) {
       /* state has changed */
       st->state.scissor = scissor;  /* struct copy */
@@ -75,14 +83,10 @@ update_scissor( struct st_context *st )
 
 
 const struct st_tracked_state st_update_scissor = {
-   .dirty = {
-      .mesa = (_NEW_SCISSOR | _NEW_BUFFERS),
-      .st  = 0,
+   "st_update_scissor",                                        /* name */
+   {                                                   /* dirty */
+      (_NEW_SCISSOR | _NEW_BUFFERS),                   /* mesa */
+      0,                                               /* st */
    },
-   .update = update_scissor
+   update_scissor                                      /* update */
 };
-
-
-
-
-