etnaviv: ASTC texture support

Add ASTC texture support for hardware that supports this
(currently only GC3000 on i.MX6qp is known to have this).

Signed-off-by: Wladimir J. van der Laan <laanwj@gmail.com>
Reviewed-by: Christian Gmeiner <christian.gmeiner@gmail.com>

7 files changed, 57 insertions, 2 deletions

diff --git a/src/gallium/drivers/etnaviv/etnaviv_emit.c b/src/gallium/drivers/etnaviv/etnaviv_emit.c
index 5397aa33ce3..d313af60cf4 100644
--- a/src/gallium/drivers/etnaviv/etnaviv_emit.c
+++ b/src/gallium/drivers/etnaviv/etnaviv_emit.c
@@ -703,6 +703,14 @@ etna_emit_state(struct etna_context *ctx)
          /*03828*/ EMIT_STATE(GL_VARYING_COMPONENT_USE(x), ctx->shader_state.GL_VARYING_COMPONENT_USE[x]);
       }
    }
+   if (unlikely(ctx->specs.tex_astc && (dirty & (ETNA_DIRTY_SAMPLER_VIEWS)))) {
+      for (int x = 0; x < VIVS_TE_SAMPLER__LEN; ++x) {
+         if ((1 << x) & active_samplers) {
+            struct etna_sampler_view *sv = etna_sampler_view(ctx->sampler_view[x]);
+            /*10500*/ EMIT_STATE(NTE_SAMPLER_ASTC0(x), sv->TE_SAMPLER_ASTC0);
+         }
+      }
+   }
    etna_coalesce_end(stream, &coalesce);
    /* end only EMIT_STATE */
 
diff --git a/src/gallium/drivers/etnaviv/etnaviv_format.c b/src/gallium/drivers/etnaviv/etnaviv_format.c
index 987f6a80c4e..3dd212ff202 100644
--- a/src/gallium/drivers/etnaviv/etnaviv_format.c
+++ b/src/gallium/drivers/etnaviv/etnaviv_format.c
@@ -246,6 +246,36 @@ static struct etna_format formats[PIPE_FORMAT_COUNT] = {
    _T(ETC2_RG11_UNORM, EXT_RG11_EAC | EXT_FORMAT,                      SWIZ(X, Y, Z, W), NONE),
    _T(ETC2_RG11_SNORM, EXT_SIGNED_RG11_EAC | EXT_FORMAT,               SWIZ(X, Y, Z, W), NONE),
 
+   _T(ASTC_4x4,        ASTC_RGBA_4x4 | ASTC_FORMAT,                    SWIZ(X, Y, Z, W), NONE),
+   _T(ASTC_5x4,        ASTC_RGBA_5x4 | ASTC_FORMAT,                    SWIZ(X, Y, Z, W), NONE),
+   _T(ASTC_5x5,        ASTC_RGBA_5x5 | ASTC_FORMAT,                    SWIZ(X, Y, Z, W), NONE),
+   _T(ASTC_6x5,        ASTC_RGBA_6x5 | ASTC_FORMAT,                    SWIZ(X, Y, Z, W), NONE),
+   _T(ASTC_6x6,        ASTC_RGBA_6x6 | ASTC_FORMAT,                    SWIZ(X, Y, Z, W), NONE),
+   _T(ASTC_8x5,        ASTC_RGBA_8x5 | ASTC_FORMAT,                    SWIZ(X, Y, Z, W), NONE),
+   _T(ASTC_8x6,        ASTC_RGBA_8x6 | ASTC_FORMAT,                    SWIZ(X, Y, Z, W), NONE),
+   _T(ASTC_8x8,        ASTC_RGBA_8x8 | ASTC_FORMAT,                    SWIZ(X, Y, Z, W), NONE),
+   _T(ASTC_10x5,       ASTC_RGBA_10x5 | ASTC_FORMAT,                   SWIZ(X, Y, Z, W), NONE),
+   _T(ASTC_10x6,       ASTC_RGBA_10x6 | ASTC_FORMAT,                   SWIZ(X, Y, Z, W), NONE),
+   _T(ASTC_10x8,       ASTC_RGBA_10x8 | ASTC_FORMAT,                   SWIZ(X, Y, Z, W), NONE),
+   _T(ASTC_10x10,      ASTC_RGBA_10x10 | ASTC_FORMAT,                  SWIZ(X, Y, Z, W), NONE),
+   _T(ASTC_12x10,      ASTC_RGBA_12x10 | ASTC_FORMAT,                  SWIZ(X, Y, Z, W), NONE),
+   _T(ASTC_12x12,      ASTC_RGBA_12x12 | ASTC_FORMAT,                  SWIZ(X, Y, Z, W), NONE),
+
+   _T(ASTC_4x4_SRGB,   ASTC_SRGB8_ALPHA8_4x4 | ASTC_FORMAT,            SWIZ(X, Y, Z, W), NONE),
+   _T(ASTC_5x4_SRGB,   ASTC_SRGB8_ALPHA8_5x4 | ASTC_FORMAT,            SWIZ(X, Y, Z, W), NONE),
+   _T(ASTC_5x5_SRGB,   ASTC_SRGB8_ALPHA8_5x5 | ASTC_FORMAT,            SWIZ(X, Y, Z, W), NONE),
+   _T(ASTC_6x5_SRGB,   ASTC_SRGB8_ALPHA8_6x5 | ASTC_FORMAT,            SWIZ(X, Y, Z, W), NONE),
+   _T(ASTC_6x6_SRGB,   ASTC_SRGB8_ALPHA8_6x6 | ASTC_FORMAT,            SWIZ(X, Y, Z, W), NONE),
+   _T(ASTC_8x5_SRGB,   ASTC_SRGB8_ALPHA8_8x5 | ASTC_FORMAT,            SWIZ(X, Y, Z, W), NONE),
+   _T(ASTC_8x6_SRGB,   ASTC_SRGB8_ALPHA8_8x6 | ASTC_FORMAT,            SWIZ(X, Y, Z, W), NONE),
+   _T(ASTC_8x8_SRGB,   ASTC_SRGB8_ALPHA8_8x8 | ASTC_FORMAT,            SWIZ(X, Y, Z, W), NONE),
+   _T(ASTC_10x5_SRGB,  ASTC_SRGB8_ALPHA8_10x5 | ASTC_FORMAT,           SWIZ(X, Y, Z, W), NONE),
+   _T(ASTC_10x6_SRGB,  ASTC_SRGB8_ALPHA8_10x6 | ASTC_FORMAT,           SWIZ(X, Y, Z, W), NONE),
+   _T(ASTC_10x8_SRGB,  ASTC_SRGB8_ALPHA8_10x8 | ASTC_FORMAT,           SWIZ(X, Y, Z, W), NONE),
+   _T(ASTC_10x10_SRGB, ASTC_SRGB8_ALPHA8_10x10 | ASTC_FORMAT,          SWIZ(X, Y, Z, W), NONE),
+   _T(ASTC_12x10_SRGB, ASTC_SRGB8_ALPHA8_12x10 | ASTC_FORMAT,          SWIZ(X, Y, Z, W), NONE),
+   _T(ASTC_12x12_SRGB, ASTC_SRGB8_ALPHA8_12x12 | ASTC_FORMAT,          SWIZ(X, Y, Z, W), NONE),
+
    /* YUV */
    _T(YUYV, YUY2, SWIZ(X, Y, Z, W), YUY2),
    _T(UYVY, UYVY, SWIZ(X, Y, Z, W), NONE),
diff --git a/src/gallium/drivers/etnaviv/etnaviv_format.h b/src/gallium/drivers/etnaviv/etnaviv_format.h
index 543e30965d2..1672d67b93d 100644
--- a/src/gallium/drivers/etnaviv/etnaviv_format.h
+++ b/src/gallium/drivers/etnaviv/etnaviv_format.h
@@ -32,6 +32,7 @@
 
 #define ETNA_NO_MATCH (~0)
 #define EXT_FORMAT (1 << 31)
+#define ASTC_FORMAT (1 << 30)
 
 uint32_t
 translate_texture_format(enum pipe_format fmt);
diff --git a/src/gallium/drivers/etnaviv/etnaviv_internal.h b/src/gallium/drivers/etnaviv/etnaviv_internal.h
index 896bbf56547..707a1e0773c 100644
--- a/src/gallium/drivers/etnaviv/etnaviv_internal.h
+++ b/src/gallium/drivers/etnaviv/etnaviv_internal.h
@@ -80,6 +80,8 @@ struct etna_specs {
    unsigned has_unified_uniforms : 1;
    /* can load shader instructions from memory */
    unsigned has_icache : 1;
+   /* ASTC texture support (and has associated states) */
+   unsigned tex_astc : 1;
    /* can use any kind of wrapping mode on npot textures */
    unsigned npot_tex_any_wrap;
    /* number of bits per TS tile */
diff --git a/src/gallium/drivers/etnaviv/etnaviv_screen.c b/src/gallium/drivers/etnaviv/etnaviv_screen.c
index bb789e69edc..b0c4b7ba471 100644
--- a/src/gallium/drivers/etnaviv/etnaviv_screen.c
+++ b/src/gallium/drivers/etnaviv/etnaviv_screen.c
@@ -500,6 +500,10 @@ gpu_supports_texure_format(struct etna_screen *screen, uint32_t fmt,
          supported = VIV_FEATURE(screen, chipMinorFeatures2, HALTI1);
    }
 
+   if (fmt & ASTC_FORMAT) {
+      supported = screen->specs.tex_astc;
+   }
+
    if (!supported)
       return false;
 
@@ -789,6 +793,8 @@ etna_get_specs(struct etna_screen *screen)
    if (screen->specs.single_buffer)
       DBG("etnaviv: Single buffer mode enabled with %d pixel pipes\n", screen->specs.pixel_pipes);
 
+   screen->specs.tex_astc = VIV_FEATURE(screen, chipMinorFeatures4, TEXTURE_ASTC);
+
    return true;
 
 fail:
diff --git a/src/gallium/drivers/etnaviv/etnaviv_texture.c b/src/gallium/drivers/etnaviv/etnaviv_texture.c
index 597390ae492..34529c600c4 100644
--- a/src/gallium/drivers/etnaviv/etnaviv_texture.c
+++ b/src/gallium/drivers/etnaviv/etnaviv_texture.c
@@ -173,6 +173,7 @@ etna_create_sampler_view(struct pipe_context *pctx, struct pipe_resource *prsc,
    struct etna_context *ctx = etna_context(pctx);
    const uint32_t format = translate_texture_format(so->format);
    const bool ext = !!(format & EXT_FORMAT);
+   const bool astc = !!(format & ASTC_FORMAT);
    const uint32_t swiz = get_texture_swiz(so->format, so->swizzle_r,
                                           so->swizzle_g, so->swizzle_b,
                                           so->swizzle_a);
@@ -207,7 +208,7 @@ etna_create_sampler_view(struct pipe_context *pctx, struct pipe_resource *prsc,
    sv->base.context = pctx;
 
    /* merged with sampler state */
-   sv->TE_SAMPLER_CONFIG0 = COND(!ext, VIVS_TE_SAMPLER_CONFIG0_FORMAT(format));
+   sv->TE_SAMPLER_CONFIG0 = COND(!ext && !astc, VIVS_TE_SAMPLER_CONFIG0_FORMAT(format));
    sv->TE_SAMPLER_CONFIG0_MASK = 0xffffffff;
 
    switch (sv->base.target) {
@@ -231,13 +232,19 @@ etna_create_sampler_view(struct pipe_context *pctx, struct pipe_resource *prsc,
    }
 
    sv->TE_SAMPLER_CONFIG1 = COND(ext, VIVS_TE_SAMPLER_CONFIG1_FORMAT_EXT(format)) |
+                            COND(astc, VIVS_TE_SAMPLER_CONFIG1_FORMAT_EXT(TEXTURE_FORMAT_EXT_ASTC)) |
                             VIVS_TE_SAMPLER_CONFIG1_HALIGN(res->halign) | swiz;
+   sv->TE_SAMPLER_ASTC0 = COND(astc, VIVS_NTE_SAMPLER_ASTC0_ASTC_FORMAT(format)) |
+                          VIVS_NTE_SAMPLER_ASTC0_UNK8(0xc) |
+                          VIVS_NTE_SAMPLER_ASTC0_UNK16(0xc) |
+                          VIVS_NTE_SAMPLER_ASTC0_UNK24(0xc);
    sv->TE_SAMPLER_SIZE = VIVS_TE_SAMPLER_SIZE_WIDTH(res->base.width0) |
                          VIVS_TE_SAMPLER_SIZE_HEIGHT(res->base.height0);
    sv->TE_SAMPLER_LOG_SIZE =
       VIVS_TE_SAMPLER_LOG_SIZE_WIDTH(etna_log2_fixp55(res->base.width0)) |
       VIVS_TE_SAMPLER_LOG_SIZE_HEIGHT(etna_log2_fixp55(res->base.height0)) |
-      COND(util_format_is_srgb(so->format), VIVS_TE_SAMPLER_LOG_SIZE_SRGB);
+      COND(util_format_is_srgb(so->format) && !astc, VIVS_TE_SAMPLER_LOG_SIZE_SRGB) |
+      COND(astc, VIVS_TE_SAMPLER_LOG_SIZE_ASTC);
 
    /* Set up levels-of-detail */
    for (int lod = 0; lod <= res->base.last_level; ++lod) {
diff --git a/src/gallium/drivers/etnaviv/etnaviv_texture.h b/src/gallium/drivers/etnaviv/etnaviv_texture.h
index a7a67fc246e..eafaae23f50 100644
--- a/src/gallium/drivers/etnaviv/etnaviv_texture.h
+++ b/src/gallium/drivers/etnaviv/etnaviv_texture.h
@@ -59,6 +59,7 @@ struct etna_sampler_view {
    uint32_t TE_SAMPLER_CONFIG1;
    uint32_t TE_SAMPLER_SIZE;
    uint32_t TE_SAMPLER_LOG_SIZE;
+   uint32_t TE_SAMPLER_ASTC0;
    struct etna_reloc TE_SAMPLER_LOD_ADDR[VIVS_TE_SAMPLER_LOD_ADDR__LEN];
    unsigned min_lod, max_lod; /* 5.5 fixp */
 };