moving trunk for module inkscape

(bzr r1)

1 files changed, 230 insertions, 0 deletions

diff --git a/src/libnr/nr-pixblock-pixel.cpp b/src/libnr/nr-pixblock-pixel.cpp
new file mode 100644
index 000000000..c778c0c7f
--- /dev/null
+++ b/src/libnr/nr-pixblock-pixel.cpp
@@ -0,0 +1,230 @@
+#define __NR_PIXBLOCK_PIXEL_C__
+
+/*
+ * Pixel buffer rendering library
+ *
+ * Authors:
+ *   Lauris Kaplinski <lauris@kaplinski.com>
+ *
+ * This code is in public domain
+ */
+
+#include "nr-pixops.h"
+#include "nr-pixblock-pixel.h"
+
+void
+nr_compose_pixblock_pixblock_pixel (NRPixBlock *dpb, unsigned char *d, const NRPixBlock *spb, const unsigned char *s)
+{
+	if (spb->empty) return;
+
+	if (dpb->empty) {
+		/* Empty destination */
+		switch (dpb->mode) {
+		case NR_PIXBLOCK_MODE_A8:
+			switch (spb->mode) {
+			case NR_PIXBLOCK_MODE_A8:
+				break;
+			case NR_PIXBLOCK_MODE_R8G8B8:
+				d[0] = 255;
+				break;
+			case NR_PIXBLOCK_MODE_R8G8B8A8N:
+				d[0] = s[3];
+				break;
+			case NR_PIXBLOCK_MODE_R8G8B8A8P:
+				d[0] = s[3];
+				break;
+			default:
+				break;
+			}
+			break;
+		case NR_PIXBLOCK_MODE_R8G8B8:
+			switch (spb->mode) {
+			case NR_PIXBLOCK_MODE_A8:
+				break;
+			case NR_PIXBLOCK_MODE_R8G8B8:
+				d[0] = s[0];
+				d[1] = s[1];
+				d[2] = s[2];
+				break;
+			case NR_PIXBLOCK_MODE_R8G8B8A8N:
+				d[0] = NR_COMPOSEN11 (s[0], s[3], 255);
+				d[1] = NR_COMPOSEN11 (s[1], s[3], 255);
+				d[2] = NR_COMPOSEN11 (s[2], s[3], 255);
+				break;
+			case NR_PIXBLOCK_MODE_R8G8B8A8P:
+				d[0] = NR_COMPOSEP11 (s[0], s[3], 255);
+				d[1] = NR_COMPOSEP11 (s[1], s[3], 255);
+				d[2] = NR_COMPOSEP11 (s[2], s[3], 255);
+				break;
+			default:
+				break;
+			}
+			break;
+		case NR_PIXBLOCK_MODE_R8G8B8A8N:
+			switch (spb->mode) {
+			case NR_PIXBLOCK_MODE_A8:
+				break;
+			case NR_PIXBLOCK_MODE_R8G8B8:
+				d[0] = s[0];
+				d[1] = s[1];
+				d[2] = s[2];
+				d[3] = 255;
+				break;
+			case NR_PIXBLOCK_MODE_R8G8B8A8N:
+				d[0] = s[0];
+				d[1] = s[1];
+				d[2] = s[2];
+				d[3] = s[3];
+				break;
+			case NR_PIXBLOCK_MODE_R8G8B8A8P:
+				if (s[3] == 0) {
+					d[0] = 255;
+					d[1] = 255;
+					d[2] = 255;
+				} else {
+					d[0] = (s[0] * 255) / s[3];
+					d[1] = (s[1] * 255) / s[3];
+					d[2] = (s[2] * 255) / s[3];
+				}
+				d[3] = s[3];
+				break;
+			default:
+				break;
+			}
+			break;
+		case NR_PIXBLOCK_MODE_R8G8B8A8P:
+			switch (spb->mode) {
+			case NR_PIXBLOCK_MODE_A8:
+				break;
+			case NR_PIXBLOCK_MODE_R8G8B8:
+				d[0] = s[0];
+				d[1] = s[1];
+				d[2] = s[2];
+				d[3] = 255;
+				break;
+			case NR_PIXBLOCK_MODE_R8G8B8A8N:
+				d[0] = NR_PREMUL (s[0], s[3]);
+				d[1] = NR_PREMUL (s[1], s[3]);
+				d[2] = NR_PREMUL (s[2], s[3]);
+				d[3] = s[3];
+				break;
+			case NR_PIXBLOCK_MODE_R8G8B8A8P:
+				d[0] = s[0];
+				d[1] = s[1];
+				d[2] = s[2];
+				d[3] = s[3];
+				break;
+			default:
+				break;
+			}
+			break;
+		default:
+			break;
+		}
+	} else {
+		/* Image destination */
+		switch (dpb->mode) {
+		case NR_PIXBLOCK_MODE_A8:
+			switch (spb->mode) {
+			case NR_PIXBLOCK_MODE_A8:
+				break;
+			case NR_PIXBLOCK_MODE_R8G8B8:
+				d[0] = 255;
+				break;
+			case NR_PIXBLOCK_MODE_R8G8B8A8N:
+				d[0] = NR_A7_NORMALIZED(s[3],d[0]);
+				break;
+			case NR_PIXBLOCK_MODE_R8G8B8A8P:
+				d[0] = NR_A7_NORMALIZED(s[3],d[0]);
+				break;
+			default:
+				break;
+			}
+			break;
+		case NR_PIXBLOCK_MODE_R8G8B8:
+			switch (spb->mode) {
+			case NR_PIXBLOCK_MODE_A8:
+				break;
+			case NR_PIXBLOCK_MODE_R8G8B8:
+				d[0] = s[0];
+				d[1] = s[1];
+				d[2] = s[2];
+				break;
+			case NR_PIXBLOCK_MODE_R8G8B8A8N:
+				d[0] = NR_COMPOSEN11 (s[0], s[3], d[0]);
+				d[1] = NR_COMPOSEN11 (s[1], s[3], d[1]);
+				d[2] = NR_COMPOSEN11 (s[2], s[3], d[2]);
+				break;
+			case NR_PIXBLOCK_MODE_R8G8B8A8P:
+				d[0] = NR_COMPOSEP11 (s[0], s[3], d[0]);
+				d[1] = NR_COMPOSEP11 (s[1], s[3], d[1]);
+				d[2] = NR_COMPOSEP11 (s[2], s[3], d[2]);
+				break;
+			default:
+				break;
+			}
+			break;
+		case NR_PIXBLOCK_MODE_R8G8B8A8N:
+			switch (spb->mode) {
+			case NR_PIXBLOCK_MODE_A8:
+				break;
+			case NR_PIXBLOCK_MODE_R8G8B8:
+				d[0] = s[0];
+				d[1] = s[1];
+				d[2] = s[2];
+				break;
+			case NR_PIXBLOCK_MODE_R8G8B8A8N:
+				if (s[3] != 0) {
+					unsigned int ca;
+					ca = NR_A7 (s[3], d[3]);
+					d[0] = NR_COMPOSENNN_A7 (s[0], s[3], d[0], d[3], ca);
+					d[1] = NR_COMPOSENNN_A7 (s[1], s[3], d[1], d[3], ca);
+					d[2] = NR_COMPOSENNN_A7 (s[2], s[3], d[2], d[3], ca);
+					d[3] = (ca + 127) / 255;
+				}
+				break;
+			case NR_PIXBLOCK_MODE_R8G8B8A8P:
+				if (s[3] != 0) {
+					unsigned int ca;
+					ca = NR_A7 (s[3], d[3]);
+					d[0] = NR_COMPOSEPNN_A7 (s[0], s[3], d[0], d[3], ca);
+					d[1] = NR_COMPOSEPNN_A7 (s[1], s[3], d[0], d[3], ca);
+					d[2] = NR_COMPOSEPNN_A7 (s[2], s[3], d[0], d[3], ca);
+					d[3] = (ca + 127) / 255;
+				}
+				break;
+			default:
+				break;
+			}
+			break;
+		case NR_PIXBLOCK_MODE_R8G8B8A8P:
+			switch (spb->mode) {
+			case NR_PIXBLOCK_MODE_A8:
+				break;
+			case NR_PIXBLOCK_MODE_R8G8B8:
+				d[0] = s[0];
+				d[1] = s[1];
+				d[2] = s[2];
+				break;
+			case NR_PIXBLOCK_MODE_R8G8B8A8N:
+				d[0] = NR_COMPOSENPP (s[0], s[3], d[0], d[3]);
+				d[1] = NR_COMPOSENPP (s[1], s[3], d[1], d[3]);
+				d[2] = NR_COMPOSENPP (s[2], s[3], d[2], d[3]);
+				d[3] = NR_A7_NORMALIZED(s[3],d[3]);
+				break;
+			case NR_PIXBLOCK_MODE_R8G8B8A8P:
+				d[0] = NR_COMPOSEPPP (s[0], s[3], d[0], d[3]);
+				d[1] = NR_COMPOSEPPP (s[1], s[3], d[1], d[3]);
+				d[2] = NR_COMPOSEPPP (s[2], s[3], d[2], d[3]);
+				d[3] = NR_A7_NORMALIZED(s[3],d[3]);
+				break;
+			default:
+				break;
+			}
+			break;
+		default:
+			break;
+		}
+	}
+}
+