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authorWladimir J. van der Laan <[email protected]>2017-07-18 12:01:14 +0200
committerLucas Stach <[email protected]>2017-07-21 12:18:35 +0200
commit322b34e57ecebb59ba9d847c58a0351e76b9d691 (patch)
tree1a0b1e9d5280e25db847e67f5c48f18575e4a4ea /src/gallium
parentc8fe372a158e419a8ad808e5e026350547fac5a3 (diff)
etnaviv: Add support for ETC2 texture compression
Add support for ETC2 compressed textures in the etnaviv driver. One step closer towards GL ES 3 support. For now, treat SRGB and RGB formats the same. It looks like these are distinguished using a different bit in sampler state, and not part of the format, but I have not yet been able to confirm this for sure. (Only enabled on GC3000+ for now, as the GC2000 ETC2 decoder implementation is buggy and we don't work around that) Signed-off-by: Wladimir J. van der Laan <[email protected]> Signed-off-by: Lucas Stach <[email protected]>
Diffstat (limited to 'src/gallium')
-rw-r--r--src/gallium/drivers/etnaviv/etnaviv_format.c11
-rw-r--r--src/gallium/drivers/etnaviv/etnaviv_screen.c12
2 files changed, 22 insertions, 1 deletions
diff --git a/src/gallium/drivers/etnaviv/etnaviv_format.c b/src/gallium/drivers/etnaviv/etnaviv_format.c
index 354dc2026ca..492499a0d30 100644
--- a/src/gallium/drivers/etnaviv/etnaviv_format.c
+++ b/src/gallium/drivers/etnaviv/etnaviv_format.c
@@ -233,6 +233,17 @@ static struct etna_format formats[PIPE_FORMAT_COUNT] = {
_T(DXT3_RGBA, DXT2_DXT3, SWIZ(X, Y, Z, W), NONE),
_T(DXT5_RGBA, DXT4_DXT5, SWIZ(X, Y, Z, W), NONE),
+ _T(ETC2_RGB8, EXT_NONE | EXT_FORMAT, SWIZ(X, Y, Z, W), NONE), /* Extd. format NONE doubles as ETC2_RGB8 */
+ _T(ETC2_SRGB8, EXT_NONE | EXT_FORMAT, SWIZ(X, Y, Z, W), NONE),
+ _T(ETC2_RGB8A1, EXT_RGB8_PUNCHTHROUGH_ALPHA1_ETC2 | EXT_FORMAT, SWIZ(X, Y, Z, W), NONE),
+ _T(ETC2_SRGB8A1, EXT_RGB8_PUNCHTHROUGH_ALPHA1_ETC2 | EXT_FORMAT, SWIZ(X, Y, Z, W), NONE),
+ _T(ETC2_RGBA8, EXT_RGBA8_ETC2_EAC | EXT_FORMAT, SWIZ(X, Y, Z, W), NONE),
+ _T(ETC2_SRGBA8, EXT_RGBA8_ETC2_EAC | EXT_FORMAT, SWIZ(X, Y, Z, W), NONE),
+ _T(ETC2_R11_UNORM, EXT_R11_EAC | EXT_FORMAT, SWIZ(X, Y, Z, W), NONE),
+ _T(ETC2_R11_SNORM, EXT_SIGNED_R11_EAC | EXT_FORMAT, SWIZ(X, Y, Z, W), NONE),
+ _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),
+
/* 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_screen.c b/src/gallium/drivers/etnaviv/etnaviv_screen.c
index 0781fec5881..129b0cd6c77 100644
--- a/src/gallium/drivers/etnaviv/etnaviv_screen.c
+++ b/src/gallium/drivers/etnaviv/etnaviv_screen.c
@@ -472,9 +472,19 @@ gpu_supports_texure_format(struct etna_screen *screen, uint32_t fmt,
if (fmt >= TEXTURE_FORMAT_DXT1 && fmt <= TEXTURE_FORMAT_DXT4_DXT5)
supported = VIV_FEATURE(screen, chipFeatures, DXT_TEXTURE_COMPRESSION);
- if (fmt & EXT_FORMAT)
+ if (fmt & EXT_FORMAT) {
supported = VIV_FEATURE(screen, chipMinorFeatures1, HALTI0);
+ /* ETC1 is checked above, as it has its own feature bit. ETC2 is
+ * supported with HALTI0, however that implementation is buggy in hardware.
+ * The blob driver does per-block patching to work around this. As this
+ * is currently not implemented by etnaviv, enable it for HALTI1 (GC3000)
+ * only.
+ */
+ if (util_format_is_etc(format))
+ supported = VIV_FEATURE(screen, chipMinorFeatures2, HALTI1);
+ }
+
if (!supported)
return false;