gallium: replace some ordinary assignments with pipe_reference_texture()

This fixes at least one instance of dereferencing an invalid texture pointer.

4 files changed, 8 insertions, 4 deletions

diff --git a/src/gallium/drivers/softpipe/sp_context.h b/src/gallium/drivers/softpipe/sp_context.h
index b70d4fea85..a50cee7648 100644
--- a/src/gallium/drivers/softpipe/sp_context.h
+++ b/src/gallium/drivers/softpipe/sp_context.h
@@ -68,7 +68,7 @@ struct softpipe_context {
    struct pipe_framebuffer_state framebuffer;
    struct pipe_poly_stipple poly_stipple;
    struct pipe_scissor_state scissor;
-   struct softpipe_texture *texture[PIPE_MAX_SAMPLERS];
+   struct pipe_texture *texture[PIPE_MAX_SAMPLERS];
    struct pipe_viewport_state viewport;
    struct pipe_vertex_buffer vertex_buffer[PIPE_ATTRIB_MAX];
    struct pipe_vertex_element vertex_element[PIPE_ATTRIB_MAX];
diff --git a/src/gallium/drivers/softpipe/sp_quad_fs.c b/src/gallium/drivers/softpipe/sp_quad_fs.c
index cf1b1eff75..2f40e09d5c 100644
--- a/src/gallium/drivers/softpipe/sp_quad_fs.c
+++ b/src/gallium/drivers/softpipe/sp_quad_fs.c
@@ -142,7 +142,7 @@ static void shade_begin(struct quad_stage *qs)
    /* set TGSI sampler state that varies */
    for (i = 0; i < PIPE_MAX_SAMPLERS; i++) {
       qss->samplers[i].state = softpipe->sampler[i];
-      qss->samplers[i].texture = &softpipe->texture[i]->base;
+      qss->samplers[i].texture = softpipe->texture[i];
    }
 
    /* find output slots for depth, color */
diff --git a/src/gallium/drivers/softpipe/sp_state_sampler.c b/src/gallium/drivers/softpipe/sp_state_sampler.c
index 9246915e19..18669a1c6e 100644
--- a/src/gallium/drivers/softpipe/sp_state_sampler.c
+++ b/src/gallium/drivers/softpipe/sp_state_sampler.c
@@ -30,6 +30,7 @@
  */
 
 #include "pipe/p_util.h"
+#include "pipe/p_inlines.h"
 
 #include "draw/draw_context.h"
 
@@ -82,7 +83,7 @@ softpipe_set_sampler_texture(struct pipe_context *pipe,
    draw_flush(softpipe->draw);
 
    assert(unit < PIPE_MAX_SAMPLERS);
-   softpipe->texture[unit] = softpipe_texture(texture);  /* ptr, not struct */
+   pipe_texture_reference(pipe, &softpipe->texture[unit], texture);
 
    sp_tile_cache_set_texture(pipe, softpipe->tex_cache[unit], texture);
 
diff --git a/src/gallium/drivers/softpipe/sp_texture.c b/src/gallium/drivers/softpipe/sp_texture.c
index 295704c05f..6ba0f09e0a 100644
--- a/src/gallium/drivers/softpipe/sp_texture.c
+++ b/src/gallium/drivers/softpipe/sp_texture.c
@@ -89,6 +89,7 @@ softpipe_texture_create(struct pipe_context *pipe,
       return NULL;
 
    spt->base = *templat;
+   spt->base.refcount = 1;
 
    softpipe_texture_layout(spt);
 
@@ -100,6 +101,8 @@ softpipe_texture_create(struct pipe_context *pipe,
       return NULL;
    }
 
+   assert(spt->base.refcount == 1);
+
    return &spt->base;
 }
 
@@ -136,7 +139,7 @@ softpipe_texture_update(struct pipe_context *pipe,
    struct softpipe_context *softpipe = softpipe_context(pipe);
    uint unit;
    for (unit = 0; unit < PIPE_MAX_SAMPLERS; unit++) {
-      if (softpipe->texture[unit] == softpipe_texture(texture)) {
+      if (softpipe->texture[unit] == texture) {
          sp_flush_tile_cache(softpipe, softpipe->tex_cache[unit]);
       }
    }