gallium: add condition parameter to render_condition

[mesa.git] / src / gallium / auxiliary / util / u_blitter.h

diff --git a/src/gallium/auxiliary/util/u_blitter.h b/src/gallium/auxiliary/util/u_blitter.h
index 162f436de7918f647662fa8835ebcd317962d633..d9cefde500a6efb40161b784c2cbbe105b597002 100644 (file)
--- a/src/gallium/auxiliary/util/u_blitter.h
+++ b/src/gallium/auxiliary/util/u_blitter.h
@@ -83,6 +83,15 @@ struct blitter_context
                           enum blitter_attrib_type type,
                           const union pipe_color_union *color);
 
+   /**
+    * Get the next surface layer for the pipe surface, i.e. make a copy
+    * of the surface and increment the first and last layer by 1.
+    *
+    * This callback is exposed, so that drivers can override it if needed.
+    */
+   struct pipe_surface *(*get_next_surface_layer)(struct pipe_context *pipe,
+                                                  struct pipe_surface *surf);
+
    /* Whether the blitter is running. */
    boolean running;
 
@@ -116,6 +125,7 @@ struct blitter_context
 
    struct pipe_query *saved_render_cond_query;
    uint saved_render_cond_mode;
+   boolean saved_render_cond_cond;
 };
 
 /**
@@ -174,9 +184,7 @@ void util_blitter_draw_rectangle(struct blitter_context *blitter,
  */
 void util_blitter_clear(struct blitter_context *blitter,
                         unsigned width, unsigned height,
-                        unsigned num_cbufs,
                         unsigned clear_buffers,
-                        enum pipe_format cbuf_format,
                         const union pipe_color_union *color,
                         double depth, unsigned stencil);
 
@@ -217,14 +225,15 @@ void util_blitter_copy_texture(struct blitter_context *blitter,
                                boolean copy_all_samples);
 
 /**
- * Same as util_blitter_copy_texture with the capabilities of util_blitter_blit,
- * but dst and src are pipe_surface and pipe_sampler_view, respectively.
- * The mipmap level and dstz are part of the views.
+ * This is a generic implementation of pipe->blit, which accepts
+ * sampler/surface views instead of resources.
+ *
+ * The layer and mipmap level are specified by the views.
  *
  * Drivers can use this to change resource properties (like format, width,
  * height) by changing how the views interpret them, instead of changing
- * pipe_resource directly. This is usually needed to accelerate copying of
- * compressed formats.
+ * pipe_resource directly. This is used to blit resources of formats which
+ * are not renderable.
  *
  * src_width0 and src_height0 are sampler_view-private properties that
  * override pipe_resource. The blitter uses them for computation of texture
@@ -236,8 +245,7 @@ void util_blitter_copy_texture(struct blitter_context *blitter,
  */
 void util_blitter_blit_generic(struct blitter_context *blitter,
                                struct pipe_surface *dst,
-                               int dstx, int dsty,
-                               unsigned dst_width, unsigned dst_height,
+                               const struct pipe_box *dstbox,
                                struct pipe_sampler_view *src,
                                const struct pipe_box *srcbox,
                                unsigned src_width0, unsigned src_height0,
@@ -267,7 +275,7 @@ void util_blitter_default_src_texture(struct pipe_sampler_view *src_templ,
 
 /**
  * Copy data from one buffer to another using the Stream Output functionality.
- * Some alignment is required, otherwise software fallback is used.
+ * 4-byte alignment is required, otherwise software fallback is used.
  */
 void util_blitter_copy_buffer(struct blitter_context *blitter,
                               struct pipe_resource *dst,
@@ -276,6 +284,22 @@ void util_blitter_copy_buffer(struct blitter_context *blitter,
                               unsigned srcx,
                               unsigned size);
 
+/**
+ * Clear the contents of a buffer using the Stream Output functionality.
+ * 4-byte alignment is required.
+ *
+ * "num_channels" can be 1, 2, 3, or 4, and specifies if the clear value is
+ * R, RG, RGB, or RGBA.
+ *
+ * For each element, only "num_channels" components of "clear_value" are
+ * copied to the buffer, then the offset is incremented by num_channels*4.
+ */
+void util_blitter_clear_buffer(struct blitter_context *blitter,
+                               struct pipe_resource *dst,
+                               unsigned offset, unsigned size,
+                               unsigned num_channels,
+                               const union pipe_color_union *clear_value);
+
 /**
  * Clear a region of a (color) surface to a constant value.
  *
@@ -492,10 +516,12 @@ util_blitter_save_sample_mask(struct blitter_context *blitter,
 static INLINE void
 util_blitter_save_render_condition(struct blitter_context *blitter,
                                    struct pipe_query *query,
+                                   boolean condition,
                                    uint mode)
 {
    blitter->saved_render_cond_query = query;
    blitter->saved_render_cond_mode = mode;
+   blitter->saved_render_cond_cond = condition;
 }
 
 #ifdef __cplusplus