From: Tobias Klausmann <tobias.johannes.klausmann@mni.thm.de>
Date: Sat, 3 Jan 2015 00:00:08 +0000 (+0100)
Subject: nv50: enable texture compression
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=1f8c0be27e1aa09e39d3016b6aae96c3ac228e17;p=mesa.git

nv50: enable texture compression

Compression seems to be supported for only some formats. Enable it for
those. Previously this was disabled for everything despite the code
looking like it was actually enabled.

Signed-off-by: Tobias Klausmann <tobias.johannes.klausmann@mni.thm.de>
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>
---

diff --git a/src/gallium/drivers/nouveau/nv50/nv50_miptree.c b/src/gallium/drivers/nouveau/nv50/nv50_miptree.c
index 1aacaec89ac..2e410912acb 100644
--- a/src/gallium/drivers/nouveau/nv50/nv50_miptree.c
+++ b/src/gallium/drivers/nouveau/nv50/nv50_miptree.c
@@ -65,8 +65,7 @@ nv50_tex_choose_tile_dims(unsigned nx, unsigned ny, unsigned nz)
 static uint32_t
 nv50_mt_choose_storage_type(struct nv50_miptree *mt, boolean compressed)
 {
-   const unsigned ms = mt->ms_x + mt->ms_y;
-
+   const unsigned ms = util_logbase2(mt->base.base.nr_samples);
    uint32_t tile_flags;
 
    if (unlikely(mt->base.base.flags & NOUVEAU_RESOURCE_FLAG_LINEAR))
@@ -96,6 +95,22 @@ nv50_mt_choose_storage_type(struct nv50_miptree *mt, boolean compressed)
       tile_flags = 0x60 + ms;
       break;
    default:
+      /* Most color formats don't work with compression. */
+      compressed = false;
+      /* fallthrough */
+   case PIPE_FORMAT_R8G8B8A8_UNORM:
+   case PIPE_FORMAT_R8G8B8A8_SRGB:
+   case PIPE_FORMAT_R8G8B8X8_UNORM:
+   case PIPE_FORMAT_R8G8B8X8_SRGB:
+   case PIPE_FORMAT_B8G8R8A8_UNORM:
+   case PIPE_FORMAT_B8G8R8A8_SRGB:
+   case PIPE_FORMAT_B8G8R8X8_UNORM:
+   case PIPE_FORMAT_B8G8R8X8_SRGB:
+   case PIPE_FORMAT_R10G10B10A2_UNORM:
+   case PIPE_FORMAT_B10G10R10A2_UNORM:
+   case PIPE_FORMAT_R16G16B16A16_FLOAT:
+   case PIPE_FORMAT_R16G16B16X16_FLOAT:
+   case PIPE_FORMAT_R11G11B10_FLOAT:
       switch (util_format_get_blocksizebits(mt->base.base.format)) {
       case 128:
          assert(ms < 3);
@@ -318,6 +333,7 @@ nv50_miptree_create(struct pipe_screen *pscreen,
    struct nouveau_device *dev = nouveau_screen(pscreen)->device;
    struct nv50_miptree *mt = CALLOC_STRUCT(nv50_miptree);
    struct pipe_resource *pt = &mt->base.base;
+   boolean compressed = dev->drm_version >= 0x01000101;
    int ret;
    union nouveau_bo_config bo_config;
    uint32_t bo_flags;
@@ -333,7 +349,7 @@ nv50_miptree_create(struct pipe_screen *pscreen,
    if (pt->bind & PIPE_BIND_LINEAR)
       pt->flags |= NOUVEAU_RESOURCE_FLAG_LINEAR;
 
-   bo_config.nv50.memtype = nv50_mt_choose_storage_type(mt, TRUE);
+   bo_config.nv50.memtype = nv50_mt_choose_storage_type(mt, compressed);
 
    if (!nv50_miptree_init_ms_mode(mt)) {
       FREE(mt);
diff --git a/src/gallium/drivers/nouveau/nv50/nv50_screen.c b/src/gallium/drivers/nouveau/nv50/nv50_screen.c
index 2d8347b0ad8..da237f92d14 100644
--- a/src/gallium/drivers/nouveau/nv50/nv50_screen.c
+++ b/src/gallium/drivers/nouveau/nv50/nv50_screen.c
@@ -449,6 +449,13 @@ nv50_screen_init_hwctx(struct nv50_screen *screen)
       PUSH_DATA (push, 0x18);
    }
 
+   BEGIN_NV04(push, NV50_3D(ZETA_COMP_ENABLE), 1);
+   PUSH_DATA(push, screen->base.device->drm_version >= 0x01000101);
+
+   BEGIN_NV04(push, NV50_3D(RT_COMP_ENABLE(0)), 8);
+   for (i = 0; i < 8; ++i)
+      PUSH_DATA(push, screen->base.device->drm_version >= 0x01000101);
+
    BEGIN_NV04(push, NV50_3D(RT_CONTROL), 1);
    PUSH_DATA (push, 1);