i915: Remove most of the code under gen >= 4 checks.
[mesa.git] / src / mesa / drivers / dri / i965 / gen7_sol_state.c
index 81ffc0e7adecece9ebb833ee8cd3408ebaa88c45..9e5f5f72e837bb5437dc9fd50dcd32ff75a755d4 100644 (file)
@@ -33,6 +33,7 @@
 #include "brw_defines.h"
 #include "intel_batchbuffer.h"
 #include "intel_buffer_objects.h"
+#include "main/transformfeedback.h"
 
 static void
 upload_3dstate_so_buffers(struct brw_context *brw)
@@ -44,7 +45,7 @@ upload_3dstate_so_buffers(struct brw_context *brw)
       ctx->Shader.CurrentVertexProgram;
    const struct gl_transform_feedback_info *linked_xfb_info =
       &vs_prog->LinkedTransformFeedback;
-   /* _NEW_TRANSFORM_FEEDBACK */
+   /* BRW_NEW_TRANSFORM_FEEDBACK */
    struct gl_transform_feedback_object *xfb_obj =
       ctx->TransformFeedback.CurrentObject;
    int i;
@@ -53,9 +54,11 @@ upload_3dstate_so_buffers(struct brw_context *brw)
     * gl_transform_feedback_object.
     */
    for (i = 0; i < 4; i++) {
-      struct gl_buffer_object *bufferobj = xfb_obj->Buffers[i];
+      struct intel_buffer_object *bufferobj =
+        intel_buffer_object(xfb_obj->Buffers[i]);
       drm_intel_bo *bo;
       uint32_t start, end;
+      uint32_t stride;
 
       if (!xfb_obj->Buffers[i]) {
         /* The pitch of 0 in this command indicates that the buffer is
@@ -71,7 +74,8 @@ upload_3dstate_so_buffers(struct brw_context *brw)
         continue;
       }
 
-      bo = intel_buffer_object(bufferobj)->buffer;
+      bo = intel_bufferobj_buffer(intel, bufferobj, INTEL_WRITE_PART);
+      stride = linked_xfb_info->BufferStride[i] * 4;
 
       start = xfb_obj->Offset[i];
       assert(start % 4 == 0);
@@ -80,9 +84,7 @@ upload_3dstate_so_buffers(struct brw_context *brw)
 
       BEGIN_BATCH(4);
       OUT_BATCH(_3DSTATE_SO_BUFFER << 16 | (4 - 2));
-      OUT_BATCH((i << SO_BUFFER_INDEX_SHIFT) |
-               ((linked_xfb_info->BufferStride[i] * 4) <<
-                SO_BUFFER_PITCH_SHIFT));
+      OUT_BATCH((i << SO_BUFFER_INDEX_SHIFT) | stride);
       OUT_RELOC(bo, I915_GEM_DOMAIN_RENDER, I915_GEM_DOMAIN_RENDER, start);
       OUT_RELOC(bo, I915_GEM_DOMAIN_RENDER, I915_GEM_DOMAIN_RENDER, end);
       ADVANCE_BATCH();
@@ -98,14 +100,14 @@ upload_3dstate_so_buffers(struct brw_context *brw)
  */
 static void
 upload_3dstate_so_decl_list(struct brw_context *brw,
-                           struct brw_vue_map *vue_map)
+                           const struct brw_vue_map *vue_map)
 {
    struct intel_context *intel = &brw->intel;
    struct gl_context *ctx = &intel->ctx;
    /* BRW_NEW_VERTEX_PROGRAM */
    const struct gl_shader_program *vs_prog =
       ctx->Shader.CurrentVertexProgram;
-   /* _NEW_TRANSFORM_FEEDBACK */
+   /* BRW_NEW_TRANSFORM_FEEDBACK */
    const struct gl_transform_feedback_info *linked_xfb_info =
       &vs_prog->LinkedTransformFeedback;
    int i;
@@ -121,12 +123,12 @@ upload_3dstate_so_decl_list(struct brw_context *brw,
    for (i = 0; i < linked_xfb_info->NumOutputs; i++) {
       int buffer = linked_xfb_info->Outputs[i].OutputBuffer;
       uint16_t decl = 0;
-      int vert_result = linked_xfb_info->Outputs[i].OutputRegister;
+      int varying = linked_xfb_info->Outputs[i].OutputRegister;
       unsigned component_mask =
          (1 << linked_xfb_info->Outputs[i].NumComponents) - 1;
 
-      /* gl_PointSize is stored in VERT_RESULT_PSIZ.w. */
-      if (vert_result == VERT_RESULT_PSIZ) {
+      /* gl_PointSize is stored in VARYING_SLOT_PSIZ.w. */
+      if (varying == VARYING_SLOT_PSIZ) {
          assert(linked_xfb_info->Outputs[i].NumComponents == 1);
          component_mask <<= 3;
       } else {
@@ -136,7 +138,7 @@ upload_3dstate_so_decl_list(struct brw_context *brw,
       buffer_mask |= 1 << buffer;
 
       decl |= buffer << SO_DECL_OUTPUT_BUFFER_SLOT_SHIFT;
-      decl |= vue_map->vert_result_to_slot[vert_result] <<
+      decl |= vue_map->varying_to_slot[varying] <<
         SO_DECL_REGISTER_INDEX_SHIFT;
       decl |= component_mask << SO_DECL_COMPONENT_MASK_SHIFT;
 
@@ -174,20 +176,16 @@ upload_3dstate_so_decl_list(struct brw_context *brw,
 
 static void
 upload_3dstate_streamout(struct brw_context *brw, bool active,
-                        struct brw_vue_map *vue_map)
+                        const struct brw_vue_map *vue_map)
 {
    struct intel_context *intel = &brw->intel;
    struct gl_context *ctx = &intel->ctx;
-   /* _NEW_TRANSFORM_FEEDBACK */
+   /* BRW_NEW_TRANSFORM_FEEDBACK */
    struct gl_transform_feedback_object *xfb_obj =
       ctx->TransformFeedback.CurrentObject;
    uint32_t dw1 = 0, dw2 = 0;
    int i;
 
-   /* _NEW_RASTERIZER_DISCARD */
-   if (ctx->RasterDiscard)
-      dw1 |= SO_RENDERING_DISABLE;
-
    if (active) {
       int urb_entry_read_offset = 0;
       int urb_entry_read_length = (vue_map->num_slots + 1) / 2 -
@@ -227,21 +225,13 @@ upload_sol_state(struct brw_context *brw)
 {
    struct intel_context *intel = &brw->intel;
    struct gl_context *ctx = &intel->ctx;
-   /* _NEW_TRANSFORM_FEEDBACK */
-   struct gl_transform_feedback_object *xfb_obj =
-      ctx->TransformFeedback.CurrentObject;
-   bool active = xfb_obj->Active && !xfb_obj->Paused;
-   struct brw_vue_map vue_map;
-
-   /* _NEW_TRANSFORM, CACHE_NEW_VS_PROG */
-   brw_compute_vue_map(&vue_map, intel, ctx->Transform.ClipPlanesEnabled != 0,
-                       brw->vs.prog_data->outputs_written);
+   /* BRW_NEW_TRANSFORM_FEEDBACK */
+   bool active = _mesa_is_xfb_active_and_unpaused(ctx);
 
    if (active) {
       upload_3dstate_so_buffers(brw);
-      upload_3dstate_so_decl_list(brw, &vue_map);
-
-      intel->batch.needs_sol_reset = true;
+      /* BRW_NEW_VUE_MAP_GEOM_OUT */
+      upload_3dstate_so_decl_list(brw, &brw->vue_map_geom_out);
    }
 
    /* Finally, set up the SOL stage.  This command must always follow updates to
@@ -249,22 +239,31 @@ upload_sol_state(struct brw_context *brw)
     * MMIO register updates (current performed by the kernel at each batch
     * emit).
     */
-   upload_3dstate_streamout(brw, active, &vue_map);
+   upload_3dstate_streamout(brw, active, &brw->vue_map_geom_out);
 }
 
 const struct brw_tracked_state gen7_sol_state = {
    .dirty = {
-      .mesa  = (_NEW_RASTERIZER_DISCARD |
-               _NEW_LIGHT |
-               _NEW_TRANSFORM_FEEDBACK |
-               _NEW_TRANSFORM),
+      .mesa  = (_NEW_LIGHT),
       .brw   = (BRW_NEW_BATCH |
-               BRW_NEW_VERTEX_PROGRAM),
-      .cache = CACHE_NEW_VS_PROG,
+               BRW_NEW_VERTEX_PROGRAM |
+                BRW_NEW_VUE_MAP_GEOM_OUT |
+                BRW_NEW_TRANSFORM_FEEDBACK)
    },
    .emit = upload_sol_state,
 };
 
+void
+gen7_begin_transform_feedback(struct gl_context *ctx, GLenum mode,
+                              struct gl_transform_feedback_object *obj)
+{
+   struct brw_context *brw = brw_context(ctx);
+   struct intel_context *intel = &brw->intel;
+
+   intel_batchbuffer_flush(intel);
+   intel->batch.needs_sol_reset = true;
+}
+
 void
 gen7_end_transform_feedback(struct gl_context *ctx,
                            struct gl_transform_feedback_object *obj)