st/mesa: fix comments, whitespace
[mesa.git] / src / mesa / state_tracker / st_texture.h
index b25e3f3f3bd90b60224c19d8d0f82553a5cda971..d50c3c9af79a01b743d0f109b1afa58b548bd5d8 100644 (file)
 #define ST_TEXTURE_H
 
 
+#include "pipe/p_context.h"
+#include "util/u_sampler.h"
+
 #include "main/mtypes.h"
 
-struct pipe_context;
-struct pipe_texture;
-struct pipe_region;
+
+struct pipe_resource;
+
+
+/**
+ * Subclass of gl_texure_image.
+ */
+struct st_texture_image
+{
+   struct gl_texture_image base;
+
+   /* These aren't stored in gl_texture_image 
+    */
+   GLuint level;
+   GLuint face;
+
+   /* If stImage->pt != NULL, image data is stored here.
+    * Else if stImage->base.Data != NULL, image is stored there.
+    * Else there is no image data.
+    */
+   struct pipe_resource *pt;
+
+   struct pipe_transfer *transfer;
+};
+
+
+/**
+ * Subclass of gl_texure_object.
+ */
+struct st_texture_object
+{
+   struct gl_texture_object base;       /* The "parent" object */
+
+   /* The texture must include at levels [0..lastLevel] once validated:
+    */
+   GLuint lastLevel;
+
+   /** The size of the level=0 mipmap image.
+    * Note that the number of 1D array layers will be in height0 and the
+    * number of 2D array layers will be in depth0, as in GL.
+    */
+   GLuint width0, height0, depth0;
+
+   /* On validation any active images held in main memory or in other
+    * textures will be copied to this texture and the old storage freed.
+    */
+   struct pipe_resource *pt;
+
+   /* Default sampler view attached to this texture object. Created lazily
+    * on first binding.
+    */
+   struct pipe_sampler_view *sampler_view;
+
+   /* True if there is/was a surface bound to this texture object.  It helps
+    * track whether the texture object is surface based or not.
+    */
+   GLboolean surface_based;
+};
+
+
+static INLINE struct st_texture_image *
+st_texture_image(struct gl_texture_image *img)
+{
+   return (struct st_texture_image *) img;
+}
+
+static INLINE struct st_texture_object *
+st_texture_object(struct gl_texture_object *obj)
+{
+   return (struct st_texture_object *) obj;
+}
+
+
+static INLINE struct pipe_resource *
+st_get_texobj_resource(struct gl_texture_object *texObj)
+{
+   struct st_texture_object *stObj = st_texture_object(texObj);
+   return stObj ? stObj->pt : NULL;
+}
 
 
-extern struct pipe_texture *
+static INLINE struct pipe_resource *
+st_get_stobj_resource(struct st_texture_object *stObj)
+{
+   return stObj ? stObj->pt : NULL;
+}
+
+
+static INLINE struct pipe_sampler_view *
+st_create_texture_sampler_view(struct pipe_context *pipe,
+                               struct pipe_resource *texture)
+{
+   struct pipe_sampler_view templ;
+
+   u_sampler_view_default_template(&templ, texture, texture->format);
+
+   return pipe->create_sampler_view(pipe, texture, &templ);
+}
+
+
+static INLINE struct pipe_sampler_view *
+st_create_texture_sampler_view_format(struct pipe_context *pipe,
+                                      struct pipe_resource *texture,
+                                      enum pipe_format format)
+{
+   struct pipe_sampler_view templ;
+
+   u_sampler_view_default_template(&templ, texture, format);
+
+   return pipe->create_sampler_view(pipe, texture, &templ);
+}
+
+
+static INLINE struct pipe_sampler_view *
+st_get_texture_sampler_view(struct st_texture_object *stObj,
+                            struct pipe_context *pipe)
+{
+   if (!stObj || !stObj->pt) {
+      return NULL;
+   }
+
+   if (!stObj->sampler_view) {
+      stObj->sampler_view = st_create_texture_sampler_view(pipe, stObj->pt);
+   }
+
+   return stObj->sampler_view;
+}
+
+
+extern struct pipe_resource *
 st_texture_create(struct st_context *st,
-                  unsigned target,
-                 unsigned format,
-                  GLenum internal_format,
-                  GLuint first_level,
+                  enum pipe_texture_target target,
+                 enum pipe_format format,
                   GLuint last_level,
                   GLuint width0,
                   GLuint height0,
                   GLuint depth0,
-                  GLuint compress_byte);
+                  GLuint layers,
+                  GLuint tex_usage );
 
 
-/* Check if an image fits an existing texture
+extern void
+st_gl_texture_dims_to_pipe_dims(GLenum texture,
+                                GLuint widthIn,
+                                GLuint heightIn,
+                                GLuint depthIn,
+                                GLuint *widthOut,
+                                GLuint *heightOut,
+                                GLuint *depthOut,
+                                GLuint *layersOut);
+
+/* Check if an image fits into an existing texture object.
  */
 extern GLboolean
-st_texture_match_image(struct pipe_texture *pt,
-                       struct gl_texture_image *image,
+st_texture_match_image(const struct pipe_resource *pt,
+                       const struct gl_texture_image *image,
                        GLuint face, GLuint level);
 
 /* Return a pointer to an image within a texture.  Return image stride as
@@ -62,7 +198,10 @@ st_texture_match_image(struct pipe_texture *pt,
 extern GLubyte *
 st_texture_image_map(struct st_context *st,
                      struct st_texture_image *stImage,
-                    GLuint zoffset);
+                    GLuint zoffset,
+                     enum pipe_transfer_usage usage,
+                     unsigned x, unsigned y,
+                     unsigned w, unsigned h);
 
 extern void
 st_texture_image_unmap(struct st_context *st,
@@ -73,26 +212,14 @@ st_texture_image_unmap(struct st_context *st,
  * value.
  */
 extern const GLuint *
-st_texture_depth_offsets(struct pipe_texture *pt, GLuint level);
-
-
-/* Return the linear offset of an image relative to the start of its region:
- */
-extern GLuint
-st_texture_image_offset(const struct pipe_texture *pt,
-                        GLuint face, GLuint level);
-
-extern GLuint
-st_texture_texel_offset(const struct pipe_texture * pt,
-                        GLuint face, GLuint level,
-                        GLuint col, GLuint row, GLuint img);
+st_texture_depth_offsets(struct pipe_resource *pt, GLuint level);
 
 
 /* Upload an image into a texture
  */
 extern void
-st_texture_image_data(struct pipe_context *pipe,
-                      struct pipe_texture *dst,
+st_texture_image_data(struct st_context *st,
+                      struct pipe_resource *dst,
                       GLuint face, GLuint level, void *src,
                       GLuint src_row_pitch, GLuint src_image_pitch);
 
@@ -101,9 +228,8 @@ st_texture_image_data(struct pipe_context *pipe,
  */
 extern void
 st_texture_image_copy(struct pipe_context *pipe,
-                      struct pipe_texture *dst,
-                      GLuint face, GLuint level,
-                      struct pipe_texture *src);
-
+                      struct pipe_resource *dst, GLuint dstLevel,
+                      struct pipe_resource *src, GLuint srcLevel,
+                      GLuint face);
 
 #endif