[Mesa-stable] [PATCH] mesa/glformats: Undo code changes from _mesa_base_tex_format() move

[Nanley Chery]

From: Nanley Chery <nanley.g.chery at intel.com>

The refactoring commit, c6bf1cd, accidentally reverted cd49b97
and 99b1f47. These changes caused more code to be added to the
function and removed the existing support for ASTC. This patch
reverts those modifications.

v2. Actually include ASTC support again.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=92221
Cc: "11.0" <mesa-stable at lists.freedesktop.org>
Signed-off-by: Nanley Chery <nanley.g.chery at intel.com>
---
 src/mesa/main/glformats.c | 149 +++-------------------------------------------
 1 file changed, 8 insertions(+), 141 deletions(-)

diff --git a/src/mesa/main/glformats.c b/src/mesa/main/glformats.c
index faa6382..2ed42ea 100644
--- a/src/mesa/main/glformats.c
+++ b/src/mesa/main/glformats.c
@@ -2275,45 +2275,16 @@ _mesa_base_tex_format(const struct gl_context *ctx, GLint internalFormat)
       ; /* fallthrough */
    }
 
-   if (ctx->Extensions.TDFX_texture_compression_FXT1) {
-      switch (internalFormat) {
-      case GL_COMPRESSED_RGB_FXT1_3DFX:
-         return GL_RGB;
-      case GL_COMPRESSED_RGBA_FXT1_3DFX:
-         return GL_RGBA;
-      default:
-         ; /* fallthrough */
-      }
+   if (_mesa_is_compressed_format(ctx, internalFormat)) {
+      GLenum base_compressed =
+         _mesa_gl_compressed_format_base_format(internalFormat);
+      if (base_compressed)
+            return base_compressed;
    }
 
-   /* Assume that the ANGLE flag will always be set if the EXT flag is set.
-    */
-   if (ctx->Extensions.ANGLE_texture_compression_dxt) {
-      switch (internalFormat) {
-      case GL_COMPRESSED_RGB_S3TC_DXT1_EXT:
-         return GL_RGB;
-      case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT:
-      case GL_COMPRESSED_RGBA_S3TC_DXT3_EXT:
-      case GL_COMPRESSED_RGBA_S3TC_DXT5_EXT:
-         return GL_RGBA;
-      default:
-         ; /* fallthrough */
-      }
-   }
-
-   if (_mesa_is_desktop_gl(ctx)
-       && ctx->Extensions.ANGLE_texture_compression_dxt) {
-      switch (internalFormat) {
-      case GL_RGB_S3TC:
-      case GL_RGB4_S3TC:
-         return GL_RGB;
-      case GL_RGBA_S3TC:
-      case GL_RGBA4_S3TC:
-         return GL_RGBA;
-      default:
-         ; /* fallthrough */
-      }
-   }
+   if (ctx->Extensions.KHR_texture_compression_astc_ldr &&
+      _mesa_is_astc_format(internalFormat))
+        return GL_RGBA;
 
    if (ctx->Extensions.MESA_ycbcr_texture) {
       if (internalFormat == GL_YCBCR_MESA)
@@ -2390,16 +2361,10 @@ _mesa_base_tex_format(const struct gl_context *ctx, GLint internalFormat)
       case GL_SRGB8_EXT:
       case GL_COMPRESSED_SRGB_EXT:
          return GL_RGB;
-      case GL_COMPRESSED_SRGB_S3TC_DXT1_EXT:
-         return ctx->Extensions.EXT_texture_compression_s3tc ? GL_RGB : -1;
       case GL_SRGB_ALPHA_EXT:
       case GL_SRGB8_ALPHA8_EXT:
       case GL_COMPRESSED_SRGB_ALPHA_EXT:
          return GL_RGBA;
-      case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT:
-      case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT:
-      case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT:
-         return ctx->Extensions.EXT_texture_compression_s3tc ? GL_RGBA : -1;
       case GL_SLUMINANCE_ALPHA_EXT:
       case GL_SLUMINANCE8_ALPHA8_EXT:
       case GL_COMPRESSED_SLUMINANCE_ALPHA_EXT:
@@ -2544,104 +2509,6 @@ _mesa_base_tex_format(const struct gl_context *ctx, GLint internalFormat)
       }
    }
 
-   if (ctx->Extensions.ARB_texture_compression_rgtc) {
-      switch (internalFormat) {
-      case GL_COMPRESSED_RED_RGTC1:
-      case GL_COMPRESSED_SIGNED_RED_RGTC1:
-         return GL_RED;
-      case GL_COMPRESSED_RG_RGTC2:
-      case GL_COMPRESSED_SIGNED_RG_RGTC2:
-         return GL_RG;
-      default:
-         ; /* fallthrough */
-      }
-   }
-
-   if (ctx->Extensions.EXT_texture_compression_latc) {
-      switch (internalFormat) {
-      case GL_COMPRESSED_LUMINANCE_LATC1_EXT:
-      case GL_COMPRESSED_SIGNED_LUMINANCE_LATC1_EXT:
-         return GL_LUMINANCE;
-      case GL_COMPRESSED_LUMINANCE_ALPHA_LATC2_EXT:
-      case GL_COMPRESSED_SIGNED_LUMINANCE_ALPHA_LATC2_EXT:
-         return GL_LUMINANCE_ALPHA;
-      default:
-         ; /* fallthrough */
-      }
-   }
-
-   if (ctx->Extensions.ATI_texture_compression_3dc) {
-      switch (internalFormat) {
-      case GL_COMPRESSED_LUMINANCE_ALPHA_3DC_ATI:
-         return GL_LUMINANCE_ALPHA;
-      default:
-         ; /* fallthrough */
-      }
-   }
-
-   if (ctx->Extensions.OES_compressed_ETC1_RGB8_texture) {
-      switch (internalFormat) {
-      case GL_ETC1_RGB8_OES:
-         return GL_RGB;
-      default:
-         ; /* fallthrough */
-      }
-   }
-
-   if (_mesa_is_gles3(ctx) || ctx->Extensions.ARB_ES3_compatibility) {
-      switch (internalFormat) {
-      case GL_COMPRESSED_RGB8_ETC2:
-      case GL_COMPRESSED_SRGB8_ETC2:
-         return GL_RGB;
-      case GL_COMPRESSED_RGBA8_ETC2_EAC:
-      case GL_COMPRESSED_SRGB8_ALPHA8_ETC2_EAC:
-      case GL_COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2:
-      case GL_COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_ETC2:
-         return GL_RGBA;
-      case GL_COMPRESSED_R11_EAC:
-      case GL_COMPRESSED_SIGNED_R11_EAC:
-         return GL_RED;
-      case GL_COMPRESSED_RG11_EAC:
-      case GL_COMPRESSED_SIGNED_RG11_EAC:
-         return GL_RG;
-      default:
-         ; /* fallthrough */
-      }
-   }
-
-   if (_mesa_is_desktop_gl(ctx) &&
-       ctx->Extensions.ARB_texture_compression_bptc) {
-      switch (internalFormat) {
-      case GL_COMPRESSED_RGBA_BPTC_UNORM:
-      case GL_COMPRESSED_SRGB_ALPHA_BPTC_UNORM:
-         return GL_RGBA;
-      case GL_COMPRESSED_RGB_BPTC_SIGNED_FLOAT:
-      case GL_COMPRESSED_RGB_BPTC_UNSIGNED_FLOAT:
-         return GL_RGB;
-      default:
-         ; /* fallthrough */
-      }
-   }
-
-   if (ctx->API == API_OPENGLES) {
-      switch (internalFormat) {
-      case GL_PALETTE4_RGB8_OES:
-      case GL_PALETTE4_R5_G6_B5_OES:
-      case GL_PALETTE8_RGB8_OES:
-      case GL_PALETTE8_R5_G6_B5_OES:
-	 return GL_RGB;
-      case GL_PALETTE4_RGBA8_OES:
-      case GL_PALETTE8_RGB5_A1_OES:
-      case GL_PALETTE4_RGBA4_OES:
-      case GL_PALETTE4_RGB5_A1_OES:
-      case GL_PALETTE8_RGBA8_OES:
-      case GL_PALETTE8_RGBA4_OES:
-	 return GL_RGBA;
-      default:
-         ; /* fallthrough */
-      }
-   }
-
    return -1; /* error */
 }
 
-- 
2.6.0