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-rw-r--r--src/mesa/main/texcompress_fxt1.c42
1 files changed, 42 insertions, 0 deletions
diff --git a/src/mesa/main/texcompress_fxt1.c b/src/mesa/main/texcompress_fxt1.c
index eeed78891c9..6a0f8560532 100644
--- a/src/mesa/main/texcompress_fxt1.c
+++ b/src/mesa/main/texcompress_fxt1.c
@@ -1643,3 +1643,45 @@ fxt1_decode_1 (const void *texture, GLint stride, /* in pixels */
decode_1[mode](code, t, rgba);
}
+
+
+
+
+static void
+fetch_rgb_fxt1(const GLubyte *map, const GLuint imageOffsets[],
+ GLint rowStride, GLint i, GLint j, GLint k, GLfloat *texel)
+{
+ GLubyte rgba[4];
+ fxt1_decode_1(map, rowStride, i, j, rgba);
+ texel[RCOMP] = UBYTE_TO_FLOAT(rgba[RCOMP]);
+ texel[GCOMP] = UBYTE_TO_FLOAT(rgba[GCOMP]);
+ texel[BCOMP] = UBYTE_TO_FLOAT(rgba[BCOMP]);
+ texel[ACOMP] = 1.0F;
+}
+
+
+static void
+fetch_rgba_fxt1(const GLubyte *map, const GLuint imageOffsets[],
+ GLint rowStride, GLint i, GLint j, GLint k, GLfloat *texel)
+{
+ GLubyte rgba[4];
+ fxt1_decode_1(map, rowStride, i, j, rgba);
+ texel[RCOMP] = UBYTE_TO_FLOAT(rgba[RCOMP]);
+ texel[GCOMP] = UBYTE_TO_FLOAT(rgba[GCOMP]);
+ texel[BCOMP] = UBYTE_TO_FLOAT(rgba[BCOMP]);
+ texel[ACOMP] = UBYTE_TO_FLOAT(rgba[ACOMP]);
+}
+
+
+compressed_fetch_func
+_mesa_get_fxt_fetch_func(gl_format format)
+{
+ switch (format) {
+ case MESA_FORMAT_RGB_FXT1:
+ return fetch_rgb_fxt1;
+ case MESA_FORMAT_RGBA_FXT1:
+ return fetch_rgba_fxt1;
+ default:
+ return NULL;
+ }
+}