return (x + (y - 1)) & ~(y - 1);
}
-static inline size_t
-_gl_image_size(GLenum format, GLenum type, GLsizei width, GLsizei height, GLsizei depth, GLboolean has_unpack_subimage) {
+static inline void
+_gl_format_size(GLenum format, GLenum type,
+ unsigned & bits_per_element, unsigned & bits_per_pixel)
+{
unsigned num_channels = _gl_format_channels(format);
- unsigned bits_per_element;
- unsigned bits_per_pixel;
switch (type) {
case GL_BITMAP:
bits_per_pixel = bits_per_element = 1;
bits_per_pixel = bits_per_element = 0;
break;
}
+}
+
+static inline size_t
+_glClearBufferData_size(GLenum format, GLenum type) {
+ unsigned bits_per_element;
+ unsigned bits_per_pixel;
+ _gl_format_size(format, type, bits_per_element, bits_per_pixel);
+ return (bits_per_pixel + 7)/8;
+}
+
+static inline size_t
+_gl_image_size(GLenum format, GLenum type, GLsizei width, GLsizei height, GLsizei depth, GLboolean has_unpack_subimage) {
+
+ unsigned bits_per_element;
+ unsigned bits_per_pixel;
+ _gl_format_size(format, type, bits_per_element, bits_per_pixel);
GLint alignment = 4;
GLint row_length = 0;