glamor: Fill in 1 and 24-bit getspans.
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@ -31,6 +31,18 @@
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#include "glamor_priv.h"
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static void
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set_bit(uint8_t *bitfield, unsigned int index, unsigned int val)
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{
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int i = index / 8;
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int mask = 1 << (index % 8);
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if (val)
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bitfield[i] |= mask;
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else
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bitfield[i] &= ~mask;
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}
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void
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glamor_get_spans(DrawablePtr drawable,
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int wmax,
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@ -41,10 +53,20 @@ glamor_get_spans(DrawablePtr drawable,
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{
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PixmapPtr pixmap = glamor_get_drawable_pixmap(drawable);
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GLenum format, type;
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int i;
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int i, j;
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uint8_t *temp_dst = NULL, *readpixels_dst = (uint8_t *)dst;
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switch (drawable->depth) {
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case 1:
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temp_dst = xalloc(4 * wmax);
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format = GL_ALPHA;
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type = GL_UNSIGNED_BYTE;
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readpixels_dst = temp_dst;
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break;
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case 24:
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format = GL_RGB;
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type = GL_UNSIGNED_BYTE;
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break;
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case 32:
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format = GL_BGRA;
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type = GL_UNSIGNED_INT_8_8_8_8_REV;
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@ -65,7 +87,14 @@ glamor_get_spans(DrawablePtr drawable,
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widths[i],
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1,
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format, type,
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dst);
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dst += PixmapBytePad(widths[i], drawable->depth);
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readpixels_dst);
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if (temp_dst) {
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for (j = 0; j < widths[i]; j++) {
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set_bit((uint8_t *)dst, j, temp_dst[j] & 0x1);
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}
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dst += PixmapBytePad(widths[i], drawable->depth);
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} else {
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readpixels_dst += PixmapBytePad(widths[i], drawable->depth);
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}
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}
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}
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