mesa: add/update comments in _mesa_copy_buffer_subdata()

[mesa.git] / src / mesa / drivers / dri / i965 / gen6_vs_state.c

diff --git a/src/mesa/drivers/dri/i965/gen6_vs_state.c b/src/mesa/drivers/dri/i965/gen6_vs_state.c
index e06c7b452a0cf986dbf1619da8ac22f690d11e9f..c638db529351a53b306f1ef7572bd8398d2f560f 100644 (file)
--- a/src/mesa/drivers/dri/i965/gen6_vs_state.c
+++ b/src/mesa/drivers/dri/i965/gen6_vs_state.c
@@ -117,7 +117,7 @@ gen6_upload_vs_push_constants(struct brw_context *brw)
    }
 }
 
-const struct brw_tracked_state gen6_vs_constants = {
+const struct brw_tracked_state gen6_vs_push_constants = {
    .dirty = {
       .mesa  = _NEW_TRANSFORM | _NEW_PROGRAM_CONSTANTS,
       .brw   = (BRW_NEW_BATCH |
@@ -131,6 +131,7 @@ static void
 upload_vs_state(struct brw_context *brw)
 {
    struct intel_context *intel = &brw->intel;
+   uint32_t floating_point_mode = 0;
 
    if (brw->vs.push_const_size == 0) {
       /* Disable the push constant buffers. */
@@ -157,12 +158,17 @@ upload_vs_state(struct brw_context *brw)
       ADVANCE_BATCH();
    }
 
+   /* Use ALT floating point mode for ARB vertex programs, because they
+    * require 0^0 == 1.
+    */
+   if (intel->ctx.Shader.CurrentVertexProgram == NULL)
+      floating_point_mode = GEN6_VS_FLOATING_POINT_MODE_ALT;
+
    BEGIN_BATCH(6);
    OUT_BATCH(_3DSTATE_VS << 16 | (6 - 2));
    OUT_BATCH(brw->vs.prog_offset);
-   OUT_BATCH((0 << GEN6_VS_SAMPLER_COUNT_SHIFT) |
-            GEN6_VS_FLOATING_POINT_MODE_ALT |
-            (brw->vs.nr_surfaces << GEN6_VS_BINDING_TABLE_ENTRY_COUNT_SHIFT));
+   OUT_BATCH(floating_point_mode |
+            ((ALIGN(brw->sampler.count, 4)/4) << GEN6_VS_SAMPLER_COUNT_SHIFT));
 
    if (brw->vs.prog_data->total_scratch) {
       OUT_RELOC(brw->vs.scratch_bo,
@@ -213,12 +219,11 @@ upload_vs_state(struct brw_context *brw)
 const struct brw_tracked_state gen6_vs_state = {
    .dirty = {
       .mesa  = _NEW_TRANSFORM | _NEW_PROGRAM_CONSTANTS,
-      .brw   = (BRW_NEW_NR_VS_SURFACES |
-               BRW_NEW_URB_FENCE |
+      .brw   = (BRW_NEW_URB_FENCE |
                BRW_NEW_CONTEXT |
                BRW_NEW_VERTEX_PROGRAM |
                BRW_NEW_BATCH),
-      .cache = CACHE_NEW_VS_PROG
+      .cache = CACHE_NEW_VS_PROG | CACHE_NEW_SAMPLER
    },
    .emit = upload_vs_state,
 };