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-rw-r--r--src/mesa/main/extensions_table.h2
-rw-r--r--src/mesa/main/glformats.c11
2 files changed, 12 insertions, 1 deletions
diff --git a/src/mesa/main/extensions_table.h b/src/mesa/main/extensions_table.h
index 09bf923bd0e..47db1583135 100644
--- a/src/mesa/main/extensions_table.h
+++ b/src/mesa/main/extensions_table.h
@@ -278,7 +278,7 @@ EXT(EXT_texture_buffer , OES_texture_buffer
EXT(EXT_texture_compression_dxt1 , ANGLE_texture_compression_dxt , GLL, GLC, ES1, ES2, 2004)
EXT(EXT_texture_compression_latc , EXT_texture_compression_latc , GLL, x , x , x , 2006)
EXT(EXT_texture_compression_rgtc , ARB_texture_compression_rgtc , GLL, GLC, x , x , 2004)
-EXT(EXT_texture_compression_s3tc , EXT_texture_compression_s3tc , GLL, GLC, x , x , 2000)
+EXT(EXT_texture_compression_s3tc , EXT_texture_compression_s3tc , GLL, GLC, x , ES2, 2000)
EXT(EXT_texture_cube_map , ARB_texture_cube_map , GLL, x , x , x , 2001)
EXT(EXT_texture_cube_map_array , OES_texture_cube_map_array , x , x , x , 31, 2014)
EXT(EXT_texture_edge_clamp , dummy_true , GLL, x , x , x , 1997)
diff --git a/src/mesa/main/glformats.c b/src/mesa/main/glformats.c
index 6cb3435dea2..f8fc36e9311 100644
--- a/src/mesa/main/glformats.c
+++ b/src/mesa/main/glformats.c
@@ -2803,6 +2803,17 @@ _mesa_es3_error_check_format_and_type(const struct gl_context *ctx,
internalFormat = effectiveInternalFormat;
}
+ /* The GLES variant of EXT_texture_compression_s3tc is very vague and
+ * doesn't list valid types. Just do exactly what the spec says.
+ */
+ if (ctx->Extensions.EXT_texture_compression_s3tc &&
+ (internalFormat == GL_COMPRESSED_RGB_S3TC_DXT1_EXT ||
+ internalFormat == GL_COMPRESSED_RGBA_S3TC_DXT1_EXT ||
+ internalFormat == GL_COMPRESSED_RGBA_S3TC_DXT3_EXT ||
+ internalFormat == GL_COMPRESSED_RGBA_S3TC_DXT5_EXT))
+ return format == GL_RGB || format == GL_RGBA ? GL_NO_ERROR :
+ GL_INVALID_OPERATION;
+
switch (format) {
case GL_BGRA_EXT:
if (type != GL_UNSIGNED_BYTE || internalFormat != GL_BGRA)