iris: Implement ALT mode for ARB_{vertex,fragment}_shader

[mesa.git] / src / gallium / drivers / iris / iris_resource.h

diff --git a/src/gallium/drivers/iris/iris_resource.h b/src/gallium/drivers/iris/iris_resource.h
index 22817193795b8c96dee7c945df46a677bc77a428..0edc1b6f3a9a1a5e6b2d0ba56bb666a552137022 100644 (file)
--- a/src/gallium/drivers/iris/iris_resource.h
+++ b/src/gallium/drivers/iris/iris_resource.h
@@ -27,10 +27,44 @@
 #include "util/u_inlines.h"
 #include "intel/isl/isl.h"
 
+struct iris_batch;
+struct iris_context;
+
+struct iris_format_info {
+   enum isl_format fmt;
+   struct isl_swizzle swizzle;
+};
+
+#define IRIS_RESOURCE_FLAG_SHADER_MEMZONE  (PIPE_RESOURCE_FLAG_DRV_PRIV << 0)
+#define IRIS_RESOURCE_FLAG_SURFACE_MEMZONE (PIPE_RESOURCE_FLAG_DRV_PRIV << 1)
+#define IRIS_RESOURCE_FLAG_DYNAMIC_MEMZONE (PIPE_RESOURCE_FLAG_DRV_PRIV << 2)
+
+/**
+ * Resources represent a GPU buffer object or image (mipmap tree).
+ *
+ * They contain the storage (BO) and layout information (ISL surface).
+ */
 struct iris_resource {
-   struct pipe_resource        base;
+   struct pipe_resource base;
+   enum pipe_format internal_format;
+
+   /**
+    * The ISL surface layout information for this resource.
+    *
+    * This is not filled out for PIPE_BUFFER resources, but is guaranteed
+    * to be zeroed.  Note that this also guarantees that res->surf.tiling
+    * will be ISL_TILING_LINEAR, so it's safe to check that.
+    */
    struct isl_surf surf;
+
+   /** Backing storage for the resource */
    struct iris_bo *bo;
+
+   /**
+    * A bitfield of PIPE_BIND_* indicating how this resource was bound
+    * in the past.  Only meaningful for PIPE_BUFFER; used for flushing.
+    */
+   unsigned bind_history;
 };
 
 /**
@@ -42,35 +76,78 @@ struct iris_state_ref {
    uint32_t offset;
 };
 
-enum isl_format iris_isl_format_for_pipe_format(enum pipe_format pf);
+/**
+ * Gallium CSO for sampler views (texture views).
+ *
+ * In addition to the normal pipe_resource, this adds an ISL view
+ * which may reinterpret the format or restrict levels/layers.
+ *
+ * These can also be linear texture buffers.
+ */
+struct iris_sampler_view {
+   struct pipe_sampler_view base;
+   struct isl_view view;
 
-void iris_init_screen_resource_functions(struct pipe_screen *pscreen);
+   /* A short-cut (not a reference) to the actual resource being viewed.
+    * Multi-planar (or depth+stencil) images may have multiple resources
+    * chained together; this skips having to traverse base->texture->*.
+    */
+   struct iris_resource *res;
 
-static inline struct iris_bo *
-iris_resource_bo(struct pipe_resource *p_res)
-{
-   struct iris_resource *res = (void *) p_res;
-   return res->bo;
-}
+   /** The resource (BO) holding our SURFACE_STATE. */
+   struct iris_state_ref surface_state;
+};
 
+/**
+ * Gallium CSO for surfaces (framebuffer attachments).
+ *
+ * A view of a surface that can be bound to a color render target or
+ * depth/stencil attachment.
+ */
 struct iris_surface {
-   struct pipe_surface pipe;
+   struct pipe_surface base;
    struct isl_view view;
 
    /** The resource (BO) holding our SURFACE_STATE. */
    struct iris_state_ref surface_state;
 };
 
+/**
+ * Transfer object - information about a buffer mapping.
+ */
 struct iris_transfer {
    struct pipe_transfer base;
    struct pipe_debug_callback *dbg;
    void *buffer;
    void *ptr;
 
-   /** Stride of the temporary image (not the actual surface) */
-   int temp_stride;
-
    void (*unmap)(struct iris_transfer *);
 };
 
+/**
+ * Unwrap a pipe_resource to get the underlying iris_bo (for convenience).
+ */
+static inline struct iris_bo *
+iris_resource_bo(struct pipe_resource *p_res)
+{
+   struct iris_resource *res = (void *) p_res;
+   return res->bo;
+}
+
+struct iris_format_info iris_format_for_usage(const struct gen_device_info *,
+                                              enum pipe_format pf,
+                                              isl_surf_usage_flags_t usage);
+
+struct pipe_resource *iris_resource_get_separate_stencil(struct pipe_resource *);
+
+void iris_get_depth_stencil_resources(struct pipe_resource *res,
+                                      struct iris_resource **out_z,
+                                      struct iris_resource **out_s);
+
+void iris_init_screen_resource_functions(struct pipe_screen *pscreen);
+
+void iris_flush_and_dirty_for_history(struct iris_context *ice,
+                                      struct iris_batch *batch,
+                                      struct iris_resource *res);
+
 #endif