[Mesa-dev] [PATCH] intel/blorp: Shrink the size of brw_blorp_blit_prog_key.

[Kenneth Graunke]

This shrinks the key from 64 bytes to 20 bytes.
---
 src/intel/blorp/blorp_priv.h | 44 ++++++++++++++++++++++----------------------
 1 file changed, 22 insertions(+), 22 deletions(-)

diff --git a/src/intel/blorp/blorp_priv.h b/src/intel/blorp/blorp_priv.h
index 81bf8c66c66..f96a5e0e5ad 100644
--- a/src/intel/blorp/blorp_priv.h
+++ b/src/intel/blorp/blorp_priv.h
@@ -221,20 +221,20 @@ struct brw_blorp_blit_prog_key
    /* Number of samples per pixel that have been configured in the surface
     * state for texturing from.
     */
-   unsigned tex_samples;
+   uint8_t tex_samples;
 
    /* MSAA layout that has been configured in the surface state for texturing
     * from.
     */
-   enum isl_msaa_layout tex_layout;
+   enum isl_msaa_layout tex_layout:8;
 
-   enum isl_aux_usage tex_aux_usage;
+   enum isl_aux_usage tex_aux_usage:8;
 
    /* Actual number of samples per pixel in the source image. */
-   unsigned src_samples;
+   uint8_t src_samples;
 
    /* Actual MSAA layout used by the source image. */
-   enum isl_msaa_layout src_layout;
+   enum isl_msaa_layout src_layout:8;
 
    /* Number of bits per channel in the source image. */
    uint8_t src_bpc;
@@ -245,16 +245,16 @@ struct brw_blorp_blit_prog_key
    /* Number of samples per pixel that have been configured in the render
     * target.
     */
-   unsigned rt_samples;
+   uint8_t rt_samples;
 
    /* MSAA layout that has been configured in the render target. */
-   enum isl_msaa_layout rt_layout;
+   enum isl_msaa_layout rt_layout:8;
 
    /* Actual number of samples per pixel in the destination image. */
-   unsigned dst_samples;
+   uint8_t dst_samples;
 
    /* Actual MSAA layout used by the destination image. */
-   enum isl_msaa_layout dst_layout;
+   enum isl_msaa_layout dst_layout:8;
 
    /* Number of bits per channel in the destination image. */
    uint8_t dst_bpc;
@@ -262,65 +262,65 @@ struct brw_blorp_blit_prog_key
    /* Type of the data to be read from the texture (one of
     * nir_type_(int|uint|float)).
     */
-   nir_alu_type texture_data_type;
+   nir_alu_type texture_data_type:8;
 
    /* True if the source image is W tiled.  If true, the surface state for the
     * source image must be configured as Y tiled, and tex_samples must be 0.
     */
-   bool src_tiled_w;
+   bool src_tiled_w:1;
 
    /* True if the destination image is W tiled.  If true, the surface state
     * for the render target must be configured as Y tiled, and rt_samples must
     * be 0.
     */
-   bool dst_tiled_w;
+   bool dst_tiled_w:1;
 
    /* True if the destination is an RGB format.  If true, the surface state
     * for the render target must be configured as red with three times the
     * normal width.  We need to do this because you cannot render to
     * non-power-of-two formats.
     */
-   bool dst_rgb;
+   bool dst_rgb:1;
 
    /* True if all source samples should be blended together to produce each
     * destination pixel.  If true, src_tiled_w must be false, tex_samples must
     * equal src_samples, and tex_samples must be nonzero.
     */
-   bool blend;
+   bool blend:1;
 
    /* True if the rectangle being sent through the rendering pipeline might be
     * larger than the destination rectangle, so the WM program should kill any
     * pixels that are outside the destination rectangle.
     */
-   bool use_kill;
+   bool use_kill:1;
 
    /**
     * True if the WM program should be run in MSDISPMODE_PERSAMPLE with more
     * than one sample per pixel.
     */
-   bool persample_msaa_dispatch;
+   bool persample_msaa_dispatch:1;
 
    /* True for scaled blitting. */
-   bool blit_scaled;
+   bool blit_scaled:1;
 
    /* True if this blit operation may involve intratile offsets on the source.
     * In this case, we need to add the offset before texturing.
     */
-   bool need_src_offset;
+   bool need_src_offset:1;
 
    /* True if this blit operation may involve intratile offsets on the
     * destination.  In this case, we need to add the offset to gl_FragCoord.
     */
-   bool need_dst_offset;
+   bool need_dst_offset:1;
+
+   /* True for blits with filter = GL_LINEAR. */
+   bool bilinear_filter:1;
 
    /* Scale factors between the pixel grid and the grid of samples. We're
     * using grid of samples for bilinear filetring in multisample scaled blits.
     */
    float x_scale;
    float y_scale;
-
-   /* True for blits with filter = GL_LINEAR. */
-   bool bilinear_filter;
 };
 
 /**
-- 
2.14.1