r600g: start adding hooks for aligning width/height for tiles.

diff --git a/src/gallium/drivers/r600/r600_texture.c b/src/gallium/drivers/r600/r600_texture.c
index b36f823..a90fc03 100644 (file)
--- a/src/gallium/drivers/r600/r600_texture.c
+++ b/src/gallium/drivers/r600/r600_texture.c
@@ -92,6 +92,19 @@ static unsigned r600_texture_get_offset(struct r600_resource_texture *rtex,
        }
 }
 
+static unsigned r600_get_pixel_alignment(struct pipe_screen *screen,
+                                        enum pipe_format format,
+                                        unsigned array_mode)
+{
+       return 64;
+}
+
+static unsigned r600_get_height_alignment(struct pipe_screen *screen,
+                                         unsigned array_mode)
+{
+       return 1;
+}
+
 static unsigned mip_minify(unsigned size, unsigned level)
 {
        unsigned val;
@@ -108,14 +121,18 @@ static unsigned r600_texture_get_stride(struct pipe_screen *screen,
        struct pipe_resource *ptex = &rtex->resource.base.b;
        struct radeon *radeon = (struct radeon *)screen->winsys;
        enum chip_class chipc = r600_get_family_class(radeon);
-       unsigned width, stride;
+       unsigned width, stride, tile_width;
        
        if (rtex->pitch_override)
                return rtex->pitch_override;
 
        width = mip_minify(ptex->width0, level);
-
-       stride = util_format_get_stride(ptex->format, align(width, 64));
+       if (util_format_is_plain(ptex->format)) {
+               tile_width = r600_get_pixel_alignment(screen, ptex->format,
+                                                     rtex->array_mode[level]);
+               width = align(width, tile_width);
+       }
+       stride = util_format_get_stride(ptex->format, width);
        if (chipc == EVERGREEN)
                stride = align(stride, 512);
        else
@@ -128,9 +145,14 @@ static unsigned r600_texture_get_nblocksy(struct pipe_screen *screen,
                                          unsigned level)
 {
        struct pipe_resource *ptex = &rtex->resource.base.b;
-       unsigned height;
+       unsigned height, tile_height;
 
        height = mip_minify(ptex->height0, level);
+       if (util_format_is_plain(ptex->format)) {
+               tile_height = r600_get_height_alignment(screen,
+                                                       rtex->array_mode[level]);
+               height = align(height, tile_height);
+       }
        return util_format_get_nblocksy(ptex->format, height);
 }