r600g: all non-0 mipmap levels need to be w/h aligned to POT.

this adds a new minify function to the driver to ensure this.

diff --git a/src/gallium/drivers/r600/r600_texture.c b/src/gallium/drivers/r600/r600_texture.c
index 95906a7..b9348ba 100644 (file)
--- a/src/gallium/drivers/r600/r600_texture.c
+++ b/src/gallium/drivers/r600/r600_texture.c
@@ -92,6 +92,15 @@ static unsigned r600_texture_get_offset(struct r600_resource_texture *rtex,
        }
 }
 
+static unsigned mip_minify(unsigned size, unsigned level)
+{
+       unsigned val;
+       val = u_minify(size, level);
+       if (level > 0)
+               val = util_next_power_of_two(val);
+       return val;
+}
+
 static unsigned r600_texture_get_stride(struct pipe_screen *screen,
                                        struct r600_resource_texture *rtex,
                                        unsigned level)
@@ -104,7 +113,7 @@ static unsigned r600_texture_get_stride(struct pipe_screen *screen,
        if (rtex->pitch_override)
                return rtex->pitch_override;
 
-       width = u_minify(ptex->width0, level);
+       width = mip_minify(ptex->width0, level);
 
        stride = util_format_get_stride(ptex->format, align(width, 64));
        if (chipc == EVERGREEN)
@@ -121,8 +130,7 @@ static unsigned r600_texture_get_nblocksy(struct pipe_screen *screen,
        struct pipe_resource *ptex = &rtex->resource.base.b;
        unsigned height;
 
-       height = u_minify(ptex->height0, level);
-       height = util_next_power_of_two(height);
+       height = mip_minify(ptex->height0, level);
        return util_format_get_nblocksy(ptex->format, height);
 }
 
@@ -249,8 +257,8 @@ static struct pipe_surface *r600_get_tex_surface(struct pipe_screen *screen,
        pipe_reference_init(&surface->reference, 1);
        pipe_resource_reference(&surface->texture, texture);
        surface->format = texture->format;
-       surface->width = u_minify(texture->width0, level);
-       surface->height = u_minify(texture->height0, level);
+       surface->width = mip_minify(texture->width0, level);
+       surface->height = mip_minify(texture->height0, level);
        surface->offset = offset;
        surface->usage = flags;
        surface->zslice = zslice;