diff options
| author | Keith Whitwell <keith@tungstengraphics.com> | 2008-10-03 17:30:59 +0100 |
|---|---|---|
| committer | Keith Whitwell <keith@tungstengraphics.com> | 2008-10-03 17:30:59 +0100 |
| commit | 1680ef869625dc1fe9cf481b180382a34e0738e7 (patch) | |
| tree | d1dff512846aaba0cf337043dd8fd00504fb5de3 /src/mesa/vbo/vbo_save_draw.c | |
| parent | d63a36ef3a4dd9cef1273fac5949e587c42813b5 (diff) | |
mesa: avoid generating constant vertex attributes in fixedfunc programs
Keep track of enabled/active vertex attributes.
Keep track of potential vertex program outputs.
When generating fragment program, replace references to fragment attributes
which are effectively non-varying and non-computed passthrough attributes with
references to the new CURRENT_ATTRIB tracked state value.
Only downside is slight ugliness in VBO code where we need to validate state
twice in succession.
Diffstat (limited to 'src/mesa/vbo/vbo_save_draw.c')
| -rw-r--r-- | src/mesa/vbo/vbo_save_draw.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/src/mesa/vbo/vbo_save_draw.c b/src/mesa/vbo/vbo_save_draw.c index 4c97acddb9..b015bf2786 100644 --- a/src/mesa/vbo/vbo_save_draw.c +++ b/src/mesa/vbo/vbo_save_draw.c @@ -118,6 +118,7 @@ static void vbo_bind_vertex_list( GLcontext *ctx, GLuint data = node->buffer_offset; const GLuint *map; GLuint attr; + GLuint varying_inputs = 0; /* Install the default (ie Current) attributes first, then overlay * all active ones. @@ -167,8 +168,11 @@ static void vbo_bind_vertex_list( GLcontext *ctx, assert(arrays[attr].BufferObj->Name); data += node->attrsz[src] * sizeof(GLfloat); + varying_inputs |= 1<<attr; } } + + _mesa_set_varying_vp_inputs( ctx, varying_inputs ); } static void vbo_save_loopback_vertex_list( GLcontext *ctx, |