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-rw-r--r--src/mesa/main/format_pack.h3
-rw-r--r--src/mesa/main/format_pack.py85
2 files changed, 88 insertions, 0 deletions
diff --git a/src/mesa/main/format_pack.h b/src/mesa/main/format_pack.h
index 1582ad12b3d..6087fc381b1 100644
--- a/src/mesa/main/format_pack.h
+++ b/src/mesa/main/format_pack.h
@@ -68,6 +68,9 @@ extern gl_pack_ubyte_stencil_func
_mesa_get_pack_ubyte_stencil_func(mesa_format format);
+extern void
+_mesa_pack_int_rgba_row(mesa_format format, GLuint n,
+ const GLint src[][4], void *dst);
extern void
_mesa_pack_float_rgba_row(mesa_format format, GLuint n,
diff --git a/src/mesa/main/format_pack.py b/src/mesa/main/format_pack.py
index f141da83ca4..e734e31a798 100644
--- a/src/mesa/main/format_pack.py
+++ b/src/mesa/main/format_pack.py
@@ -214,6 +214,59 @@ pack_uint_${f.short_name()}(const GLuint src[4], void *dst)
}
%endfor
+/* int packing functions */
+
+%for f in rgb_formats:
+ %if not f.is_int():
+ <% continue %>
+ %elif f.is_normalized():
+ <% continue %>
+ %elif f.is_compressed():
+ <% continue %>
+ %endif
+
+static inline void
+pack_int_${f.short_name()}(const GLint src[4], void *dst)
+{
+ %for (i, c) in enumerate(f.channels):
+ <% i = f.swizzle.inverse()[i] %>
+ %if c.type == 'x':
+ <% continue %>
+ %endif
+
+ ${c.datatype()} ${c.name} =
+ %if c.type == parser.SIGNED:
+ _mesa_signed_to_signed(src[${i}], ${c.size});
+ %elif c.type == parser.UNSIGNED:
+ _mesa_unsigned_to_unsigned(src[${i}], ${c.size});
+ %else:
+ assert(!"Invalid type: only integer types are allowed");
+ %endif
+ %endfor
+
+ %if f.layout == parser.ARRAY:
+ ${f.datatype()} *d = (${f.datatype()} *)dst;
+ %for (i, c) in enumerate(f.channels):
+ %if c.type == 'x':
+ <% continue %>
+ %endif
+ d[${i}] = ${c.name};
+ %endfor
+ %elif f.layout == parser.PACKED:
+ ${f.datatype()} d = 0;
+ %for (i, c) in enumerate(f.channels):
+ %if c.type == 'x':
+ <% continue %>
+ %endif
+ d |= PACK(${c.name}, ${c.shift}, ${c.size});
+ %endfor
+ (*(${f.datatype()} *)dst) = d;
+ %else:
+ <% assert False %>
+ %endif
+}
+%endfor
+
/* float packing functions */
%for f in rgb_formats:
@@ -397,6 +450,38 @@ _mesa_pack_uint_rgba_row(mesa_format format, GLuint n,
}
/**
+ * Pack a row of GLint rgba[4] values to the destination.
+ */
+void
+_mesa_pack_int_rgba_row(mesa_format format, GLuint n,
+ const GLint src[][4], void *dst)
+{
+ GLuint i;
+ GLubyte *d = dst;
+
+ switch (format) {
+%for f in rgb_formats:
+ %if not f.is_int():
+ <% continue %>
+ %elif f.is_normalized():
+ <% continue %>
+ %elif f.is_compressed():
+ <% continue %>
+ %endif
+
+ case ${f.name}:
+ for (i = 0; i < n; ++i) {
+ pack_int_${f.short_name()}(src[i], d);
+ d += ${f.block_size() / 8};
+ }
+ break;
+%endfor
+ default:
+ assert(!"Invalid format");
+ }
+}
+
+/**
* Pack a row of GLfloat rgba[4] values to the destination.
*/
void