From 48731280d08bef51c406703e82986643e17b4757 Mon Sep 17 00:00:00 2001
From: Keith Whitwell <keith@tungstengraphics.com>
Date: Tue, 11 Dec 2007 13:00:12 +0000
Subject: gallium: Remove feedback interfaces from pipe driver.

Something similar will return when geometry shaders are added, but for now
this interface is not required.
---
 src/mesa/pipe/i915simple/i915_context.c | 22 ----------------------
 src/mesa/pipe/i915simple/i915_context.h |  4 ----
 src/mesa/pipe/i915simple/i915_state.c   | 30 ------------------------------
 3 files changed, 56 deletions(-)

(limited to 'src/mesa/pipe/i915simple')

diff --git a/src/mesa/pipe/i915simple/i915_context.c b/src/mesa/pipe/i915simple/i915_context.c
index f505ff6ae6..d2bbeea16a 100644
--- a/src/mesa/pipe/i915simple/i915_context.c
+++ b/src/mesa/pipe/i915simple/i915_context.c
@@ -223,18 +223,6 @@ i915_draw_elements( struct pipe_context *pipe,
       draw_set_mapped_element_buffer(draw, 0, NULL);
    }
 
-   /* Map feedback buffers if enabled */
-   if (i915->feedback.enabled) {
-      const uint n = i915->feedback.interleaved ? 1 : i915->feedback.num_attribs;
-      for (i = 0; i < n; i++) {
-         void *ptr = pipe->winsys->buffer_map(pipe->winsys,
-                                              i915->feedback_buffer[i].buffer,
-                                              PIPE_BUFFER_FLAG_WRITE);
-         draw_set_mapped_feedback_buffer(draw, i, ptr,
-                                         i915->feedback_buffer[i].size);
-      }
-   }
-
 
    draw_set_mapped_constant_buffer(draw,
                                 i915->current.constants[PIPE_SHADER_VERTEX]);
@@ -256,16 +244,6 @@ i915_draw_elements( struct pipe_context *pipe,
       draw_set_mapped_element_buffer(draw, 0, NULL);
    }
 
-   /* Unmap feedback buffers if enabled */
-   if (i915->feedback.enabled) {
-      const uint n = i915->feedback.interleaved ? 1 : i915->feedback.num_attribs;
-      for (i = 0; i < n; i++) {
-         pipe->winsys->buffer_unmap(pipe->winsys,
-                                    i915->feedback_buffer[i].buffer);
-         draw_set_mapped_feedback_buffer(draw, i, NULL, 0);
-      }
-   }
-
    return TRUE;
 }
 
diff --git a/src/mesa/pipe/i915simple/i915_context.h b/src/mesa/pipe/i915simple/i915_context.h
index dbf0c885cc..b9b67c4fcf 100644
--- a/src/mesa/pipe/i915simple/i915_context.h
+++ b/src/mesa/pipe/i915simple/i915_context.h
@@ -197,7 +197,6 @@ struct i915_context
    struct pipe_clear_color_state clear_color;
    struct pipe_clip_state clip;
    struct pipe_constant_buffer constants[PIPE_SHADER_TYPES];
-   struct pipe_feedback_state feedback;
    struct pipe_framebuffer_state framebuffer;
    struct pipe_poly_stipple poly_stipple;
    struct pipe_scissor_state scissor;
@@ -206,9 +205,6 @@ struct i915_context
    struct pipe_viewport_state viewport;
    struct pipe_vertex_buffer vertex_buffer[PIPE_ATTRIB_MAX];
 
-   /** Feedback buffers */
-   struct pipe_feedback_buffer feedback_buffer[PIPE_MAX_FEEDBACK_ATTRIBS];
-
    unsigned dirty;
 
    unsigned *batch_start;
diff --git a/src/mesa/pipe/i915simple/i915_state.c b/src/mesa/pipe/i915simple/i915_state.c
index 038fd623ea..b9f257a007 100644
--- a/src/mesa/pipe/i915simple/i915_state.c
+++ b/src/mesa/pipe/i915simple/i915_state.c
@@ -547,34 +547,6 @@ static void i915_set_framebuffer_state(struct pipe_context *pipe,
 }
 
 
-static void
-i915_set_feedback_state(struct pipe_context *pipe,
-                        const struct pipe_feedback_state *feedback)
-{
-   struct i915_context *i915 = i915_context(pipe);
-   i915->feedback = *feedback;
-   draw_set_feedback_state(i915->draw, feedback);
-}
-
-
-static void
-i915_set_feedback_buffer(struct pipe_context *pipe,
-                             unsigned index,
-                             const struct pipe_feedback_buffer *feedback)
-{
-   struct i915_context *i915 = i915_context(pipe);
-
-   assert(index < PIPE_MAX_FEEDBACK_ATTRIBS);
-
-   /* Need to be careful with referencing */
-   pipe->winsys->buffer_reference(pipe->winsys,
-                                  &i915->feedback_buffer[index].buffer,
-                                  feedback->buffer);
-   i915->feedback_buffer[index].size = feedback->size;
-   i915->feedback_buffer[index].start_offset = feedback->start_offset;
-}
-
-
 
 static void i915_set_clear_color_state(struct pipe_context *pipe,
                                const struct pipe_clear_color_state *clear)
@@ -751,8 +723,6 @@ i915_init_state_functions( struct i915_context *i915 )
    i915->pipe.set_clear_color_state = i915_set_clear_color_state;
    i915->pipe.set_constant_buffer = i915_set_constant_buffer;
    i915->pipe.set_framebuffer_state = i915_set_framebuffer_state;
-   i915->pipe.set_feedback_state = i915_set_feedback_state;
-   i915->pipe.set_feedback_buffer = i915_set_feedback_buffer;
 
    i915->pipe.set_polygon_stipple = i915_set_polygon_stipple;
    i915->pipe.set_sampler_units = i915_set_sampler_units;
-- 
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