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-rw-r--r--src/mesa/state_tracker/st_cb_bitmap.c61
1 files changed, 4 insertions, 57 deletions
diff --git a/src/mesa/state_tracker/st_cb_bitmap.c b/src/mesa/state_tracker/st_cb_bitmap.c
index ccf972f805..3171b67376 100644
--- a/src/mesa/state_tracker/st_cb_bitmap.c
+++ b/src/mesa/state_tracker/st_cb_bitmap.c
@@ -241,7 +241,7 @@ combined_bitmap_fragment_program(GLcontext *ctx)
/**
* Copy user-provide bitmap bits into texture buffer, expanding
* bits into texels.
- * "On" bits will set texels to 0xff.
+ * "On" bits will set texels to 0x0.
* "Off" bits will not modify texels.
* Note that the image is actually going to be upside down in
* the texture. We deal with that with texcoords.
@@ -253,63 +253,10 @@ unpack_bitmap(struct st_context *st,
const GLubyte *bitmap,
ubyte *destBuffer, uint destStride)
{
- GLint row, col;
-
-#define SET_PIXEL(COL, ROW) \
- destBuffer[(py + (ROW)) * destStride + px + (COL)] = 0x0;
-
- for (row = 0; row < height; row++) {
- const GLubyte *src = (const GLubyte *) _mesa_image_address2d(unpack,
- bitmap, width, height, GL_COLOR_INDEX, GL_BITMAP, row, 0);
-
- if (unpack->LsbFirst) {
- /* Lsb first */
- GLubyte mask = 1U << (unpack->SkipPixels & 0x7);
- for (col = 0; col < width; col++) {
-
- if (*src & mask) {
- SET_PIXEL(col, row);
- }
-
- if (mask == 128U) {
- src++;
- mask = 1U;
- }
- else {
- mask = mask << 1;
- }
- }
-
- /* get ready for next row */
- if (mask != 1)
- src++;
- }
- else {
- /* Msb first */
- GLubyte mask = 128U >> (unpack->SkipPixels & 0x7);
- for (col = 0; col < width; col++) {
-
- if (*src & mask) {
- SET_PIXEL(col, row);
- }
-
- if (mask == 1U) {
- src++;
- mask = 128U;
- }
- else {
- mask = mask >> 1;
- }
- }
-
- /* get ready for next row */
- if (mask != 128)
- src++;
- }
-
- } /* row */
+ destBuffer += py * destStride + px;
-#undef SET_PIXEL
+ _mesa_expand_bitmap(width, height, unpack, bitmap,
+ destBuffer, destStride, 0x0);
}