mesa: add ASTC 2D LDR decoder

[mesa.git] / src / mesa / main / formats.c

diff --git a/src/mesa/main/formats.c b/src/mesa/main/formats.c
index ecdfd5610359352451a8f2934e007c4c49395ea0..d4cd5d2182cfbc5b44bb12fe273e38cf807bc439 100644 (file)
--- a/src/mesa/main/formats.c
+++ b/src/mesa/main/formats.c
@@ -24,6 +24,7 @@
  */
 
 
+#include "errors.h"
 #include "imports.h"
 #include "formats.h"
 #include "macros.h"
@@ -109,6 +110,11 @@ _mesa_get_format_name(mesa_format format)
 GLint
 _mesa_get_format_bytes(mesa_format format)
 {
+   if (_mesa_format_is_mesa_array_format(format)) {
+      return _mesa_array_format_get_type_size(format) *
+             _mesa_array_format_get_num_channels(format);
+   }
+
    const struct gl_format_info *info = _mesa_get_format_info(format);
    assert(info->BytesPerBlock);
    assert(info->BytesPerBlock <= MAX_PIXEL_BYTES ||
@@ -621,6 +627,48 @@ _mesa_is_format_etc2(mesa_format format)
 }
 
 
+/**
+ * Return TRUE if format is an ASTC 2D compressed format.
+ */
+bool
+_mesa_is_format_astc_2d(mesa_format format)
+{
+   switch (format) {
+   case MESA_FORMAT_RGBA_ASTC_4x4:
+   case MESA_FORMAT_RGBA_ASTC_5x4:
+   case MESA_FORMAT_RGBA_ASTC_5x5:
+   case MESA_FORMAT_RGBA_ASTC_6x5:
+   case MESA_FORMAT_RGBA_ASTC_6x6:
+   case MESA_FORMAT_RGBA_ASTC_8x5:
+   case MESA_FORMAT_RGBA_ASTC_8x6:
+   case MESA_FORMAT_RGBA_ASTC_8x8:
+   case MESA_FORMAT_RGBA_ASTC_10x5:
+   case MESA_FORMAT_RGBA_ASTC_10x6:
+   case MESA_FORMAT_RGBA_ASTC_10x8:
+   case MESA_FORMAT_RGBA_ASTC_10x10:
+   case MESA_FORMAT_RGBA_ASTC_12x10:
+   case MESA_FORMAT_RGBA_ASTC_12x12:
+   case MESA_FORMAT_SRGB8_ALPHA8_ASTC_4x4:
+   case MESA_FORMAT_SRGB8_ALPHA8_ASTC_5x4:
+   case MESA_FORMAT_SRGB8_ALPHA8_ASTC_5x5:
+   case MESA_FORMAT_SRGB8_ALPHA8_ASTC_6x5:
+   case MESA_FORMAT_SRGB8_ALPHA8_ASTC_6x6:
+   case MESA_FORMAT_SRGB8_ALPHA8_ASTC_8x5:
+   case MESA_FORMAT_SRGB8_ALPHA8_ASTC_8x6:
+   case MESA_FORMAT_SRGB8_ALPHA8_ASTC_8x8:
+   case MESA_FORMAT_SRGB8_ALPHA8_ASTC_10x5:
+   case MESA_FORMAT_SRGB8_ALPHA8_ASTC_10x6:
+   case MESA_FORMAT_SRGB8_ALPHA8_ASTC_10x8:
+   case MESA_FORMAT_SRGB8_ALPHA8_ASTC_10x10:
+   case MESA_FORMAT_SRGB8_ALPHA8_ASTC_12x10:
+   case MESA_FORMAT_SRGB8_ALPHA8_ASTC_12x12:
+      return true;
+   default:
+      return false;
+   }
+}
+
+
 /**
  * If the given format is a compressed format, return a corresponding
  * uncompressed format.
@@ -875,6 +923,7 @@ _mesa_uncompressed_format_to_type_and_comps(mesa_format format,
 
    case MESA_FORMAT_A1B5G5R5_UNORM:
    case MESA_FORMAT_A1B5G5R5_UINT:
+   case MESA_FORMAT_X1B5G5R5_UNORM:
       *datatype = GL_UNSIGNED_SHORT_5_5_5_1;
       *comps = 4;
       return;
@@ -1526,6 +1575,10 @@ _mesa_format_matches_format_and_type(mesa_format mesa_format,
       return format == GL_RGBA && type == GL_UNSIGNED_SHORT_5_5_5_1 &&
          !swapBytes;
 
+   case MESA_FORMAT_X1B5G5R5_UNORM:
+      return format == GL_RGB && type == GL_UNSIGNED_SHORT_5_5_5_1 &&
+         !swapBytes;
+
    case MESA_FORMAT_B5G5R5A1_UNORM:
       return format == GL_BGRA && type == GL_UNSIGNED_SHORT_1_5_5_5_REV &&
          !swapBytes;
@@ -1558,15 +1611,9 @@ _mesa_format_matches_format_and_type(mesa_format mesa_format,
       if (format == GL_RGBA && type == GL_UNSIGNED_SHORT_4_4_4_4 && !swapBytes)
          return GL_TRUE;
 
-      if (format == GL_RGBA && type == GL_UNSIGNED_SHORT_4_4_4_4_REV && swapBytes)
-         return GL_TRUE;
-
       if (format == GL_ABGR_EXT && type == GL_UNSIGNED_SHORT_4_4_4_4_REV && !swapBytes)
          return GL_TRUE;
 
-      if (format == GL_ABGR_EXT && type == GL_UNSIGNED_SHORT_4_4_4_4 && swapBytes)
-         return GL_TRUE;
-
       return GL_FALSE;
 
    case MESA_FORMAT_R4G4B4A4_UNORM: