mesa: add GL_OES_copy_image support

Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Reviewed-by: Dave Airlie <airlied@redhat.com>

1 files changed, 86 insertions, 0 deletions

diff --git a/src/mesa/main/textureview.c b/src/mesa/main/textureview.c
index 419fbeb..4b3b324 100644
--- a/src/mesa/main/textureview.c
+++ b/src/mesa/main/textureview.c
@@ -82,6 +82,39 @@
     |                       | COMPRESSED_RGB_BPTC_UNSIGNED_FLOAT              |
     ---------------------------------------------------------------------------
  */
+
+#define VIEW_CLASS_GLES(x)             (GL_VIEW_CLASS_BPTC_FLOAT + 1 + x)
+#define VIEW_CLASS_EAC_R11             VIEW_CLASS_GLES(0)
+#define VIEW_CLASS_EAC_RG11            VIEW_CLASS_GLES(1)
+#define VIEW_CLASS_ETC2_RGB            VIEW_CLASS_GLES(2)
+#define VIEW_CLASS_ETC2_RGBA           VIEW_CLASS_GLES(3)
+#define VIEW_CLASS_ETC2_EAC_RGBA       VIEW_CLASS_GLES(4)
+#define VIEW_CLASS_ASTC_4x4_RGBA       VIEW_CLASS_GLES(5)
+#define VIEW_CLASS_ASTC_5x4_RGBA       VIEW_CLASS_GLES(6)
+#define VIEW_CLASS_ASTC_5x5_RGBA       VIEW_CLASS_GLES(7)
+#define VIEW_CLASS_ASTC_6x5_RGBA       VIEW_CLASS_GLES(8)
+#define VIEW_CLASS_ASTC_6x6_RGBA       VIEW_CLASS_GLES(9)
+#define VIEW_CLASS_ASTC_8x5_RGBA       VIEW_CLASS_GLES(10)
+#define VIEW_CLASS_ASTC_8x6_RGBA       VIEW_CLASS_GLES(11)
+#define VIEW_CLASS_ASTC_8x8_RGBA       VIEW_CLASS_GLES(12)
+#define VIEW_CLASS_ASTC_10x5_RGBA      VIEW_CLASS_GLES(13)
+#define VIEW_CLASS_ASTC_10x6_RGBA      VIEW_CLASS_GLES(14)
+#define VIEW_CLASS_ASTC_10x8_RGBA      VIEW_CLASS_GLES(15)
+#define VIEW_CLASS_ASTC_10x10_RGBA     VIEW_CLASS_GLES(16)
+#define VIEW_CLASS_ASTC_12x10_RGBA     VIEW_CLASS_GLES(17)
+#define VIEW_CLASS_ASTC_12x12_RGBA     VIEW_CLASS_GLES(18)
+#define VIEW_CLASS_ASTC_3x3x3_RGBA     VIEW_CLASS_GLES(19)
+#define VIEW_CLASS_ASTC_4x3x3_RGBA     VIEW_CLASS_GLES(20)
+#define VIEW_CLASS_ASTC_4x4x3_RGBA     VIEW_CLASS_GLES(21)
+#define VIEW_CLASS_ASTC_4x4x4_RGBA     VIEW_CLASS_GLES(22)
+#define VIEW_CLASS_ASTC_5x4x4_RGBA     VIEW_CLASS_GLES(23)
+#define VIEW_CLASS_ASTC_5x5x4_RGBA     VIEW_CLASS_GLES(24)
+#define VIEW_CLASS_ASTC_5x5x5_RGBA     VIEW_CLASS_GLES(25)
+#define VIEW_CLASS_ASTC_6x5x5_RGBA     VIEW_CLASS_GLES(26)
+#define VIEW_CLASS_ASTC_6x6x5_RGBA     VIEW_CLASS_GLES(27)
+#define VIEW_CLASS_ASTC_6x6x6_RGBA     VIEW_CLASS_GLES(28)
+
+
 struct internal_format_class_info {
    GLenum view_class;
    GLenum internal_format;
@@ -162,6 +195,41 @@ static const struct internal_format_class_info s3tc_compatible_internal_formats[
    {GL_VIEW_CLASS_S3TC_DXT5_RGBA, GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT},
 };
 
+static const struct internal_format_class_info gles_etc2_compatible_internal_formats[] = {
+   {VIEW_CLASS_EAC_R11, GL_COMPRESSED_R11_EAC},
+   {VIEW_CLASS_EAC_R11, GL_COMPRESSED_SIGNED_R11_EAC},
+   {VIEW_CLASS_EAC_RG11, GL_COMPRESSED_RG11_EAC},
+   {VIEW_CLASS_EAC_RG11, GL_COMPRESSED_SIGNED_RG11_EAC},
+   {VIEW_CLASS_ETC2_RGB, GL_COMPRESSED_RGB8_ETC2},
+   {VIEW_CLASS_ETC2_RGB, GL_COMPRESSED_SRGB8_ETC2},
+   {VIEW_CLASS_ETC2_RGBA, GL_COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2},
+   {VIEW_CLASS_ETC2_RGBA, GL_COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_ETC2},
+   {VIEW_CLASS_ETC2_EAC_RGBA, GL_COMPRESSED_RGBA8_ETC2_EAC},
+   {VIEW_CLASS_ETC2_EAC_RGBA, GL_COMPRESSED_SRGB8_ALPHA8_ETC2_EAC},
+};
+
+static const struct internal_format_class_info gles_astc_compatible_internal_formats[] = {
+#define ASTC_FMT(size) \
+   {VIEW_CLASS_ASTC_##size## _RGBA, GL_COMPRESSED_RGBA_ASTC_##size##_KHR}, \
+   {VIEW_CLASS_ASTC_##size##_RGBA, GL_COMPRESSED_SRGB8_ALPHA8_ASTC_##size##_KHR}
+
+   ASTC_FMT(4x4),
+   ASTC_FMT(5x4),
+   ASTC_FMT(5x5),
+   ASTC_FMT(6x5),
+   ASTC_FMT(6x6),
+   ASTC_FMT(8x5),
+   ASTC_FMT(8x6),
+   ASTC_FMT(8x8),
+   ASTC_FMT(10x5),
+   ASTC_FMT(10x6),
+   ASTC_FMT(10x8),
+   ASTC_FMT(10x10),
+   ASTC_FMT(12x10),
+   ASTC_FMT(12x12),
+#undef ASTC_FMT
+};
+
 GLenum
 _mesa_texture_view_lookup_view_class(const struct gl_context *ctx, GLenum internalformat)
 {
@@ -180,6 +248,24 @@ _mesa_texture_view_lookup_view_class(const struct gl_context *ctx, GLenum intern
             return s3tc_compatible_internal_formats[i].view_class;
       }
    }
+
+   if (_mesa_is_gles3(ctx)) {
+      for (i = 0; i < ARRAY_SIZE(gles_etc2_compatible_internal_formats); i++) {
+         if (gles_etc2_compatible_internal_formats[i].internal_format
+             == internalformat)
+            return gles_etc2_compatible_internal_formats[i].view_class;
+      }
+
+      if (ctx->Extensions.KHR_texture_compression_astc_ldr) {
+         for (i = 0; i < ARRAY_SIZE(gles_astc_compatible_internal_formats); i++) {
+            if (gles_astc_compatible_internal_formats[i].internal_format
+                == internalformat)
+               return gles_astc_compatible_internal_formats[i].view_class;
+         }
+      }
+
+      /* FINISHME: Add 3D OES formats when supported */
+   }
    return GL_FALSE;
 }