st/mesa: store state that affects sampler views per context

This fixes sequences like:

1. Context 1 samples from texture with sRGB decode enabled
2. Context 2 samples from texture with sRGB decode disabled
3. Context 1 samples from texture with sRGB decode disabled

Previously, step 3 would see the prev_sRGBDecode value from context 2
and would incorrectly use the old sampler view with sRGB decode enabled.

Reviewed-by: Marek Olšák <[email protected]>

1 files changed, 14 insertions, 6 deletions

diff --git a/src/mesa/state_tracker/st_texture.h b/src/mesa/state_tracker/st_texture.h
index ea459bf6e24..4f41aac53cf 100644
--- a/src/mesa/state_tracker/st_texture.h
+++ b/src/mesa/state_tracker/st_texture.h
@@ -49,6 +49,19 @@ struct st_texture_image_transfer {
 
 
 /**
+ * Container for one context's validated sampler view.
+ */
+struct st_sampler_view {
+   struct pipe_sampler_view *view;
+
+   /** The glsl version of the shader seen during validation */
+   bool glsl130_or_later;
+   /** The value of the sampler's sRGBDecode state during validation */
+   GLenum sRGBDecode;
+};
+
+
+/**
  * Subclass of gl_texure_image.
  */
 struct st_texture_image
@@ -98,7 +111,7 @@ struct st_texture_object
    /* Array of sampler views (one per context) attached to this texture
     * object. Created lazily on first binding in context.
     */
-   struct pipe_sampler_view **sampler_views;
+   struct st_sampler_view *sampler_views;
 
    /* True if this texture comes from the window system. Such a texture
     * cannot be reallocated and the format can only be changed with a sampler
@@ -129,11 +142,6 @@ struct st_texture_object
     */
    uint layer_override;
 
-   /** The glsl version of the shader seen during the previous validation */
-   bool prev_glsl130_or_later;
-   /** The value of the sampler's sRGBDecode state at the previous validation */
-   GLenum prev_sRGBDecode;
-
     /**
      * Set when the texture images of this texture object might not all be in
      * the pipe_resource *pt above.