Wholesale cruft removal part 1

(bzr r9508.1.44)

1 files changed, 0 insertions, 554 deletions

diff --git a/src/libnr/nr-gradient.cpp b/src/libnr/nr-gradient.cpp
deleted file mode 100644
index e6eb9b79c..000000000
--- a/src/libnr/nr-gradient.cpp
+++ /dev/null
@@ -1,554 +0,0 @@
-#define __NR_GRADIENT_C__
-
-/*
- * Pixel buffer rendering library
- *
- * Authors:
- *   Lauris Kaplinski <lauris@kaplinski.com>
- *   MenTaLguY <mental@rydia.net>
- *...Jasper van de Gronde <th.v.d.gronde@hccnet.nl>
- *
- * Copyright (C) 2009 Jasper van de Gronde
- * Copyright (C) 2007 MenTaLguY 
- * Copyright (C) 2001-2002 Lauris Kaplinski
- * Copyright (C) 2001-2002 Ximian, Inc.
- *
- * Released under GNU GPL, read the file 'COPYING' for more information
- */
-
-/*
- * Derived in part from public domain code by Lauris Kaplinski
- */
-
-#include <cstring>
-#include <libnr/nr-pixops.h>
-#include <libnr/nr-pixblock-pixel.h>
-#include <libnr/nr-blit.h>
-#include <libnr/nr-gradient.h>
-#include <libnr/nr-matrix-ops.h>
-#include <glib/gtypes.h>
-#include <stdio.h>
-
-/* Common */
-
-#define NRG_MASK (NR_GRADIENT_VECTOR_LENGTH - 1)
-#define NRG_2MASK ((long long) ((NR_GRADIENT_VECTOR_LENGTH << 1) - 1))
-
-namespace {
-inline unsigned char const *vector_index(int idx,
-                                         unsigned char const *vector)
-{
-  return vector + 4 * idx;
-}
-
-template <NRGradientSpread spread> struct Spread;
-
-template <>
-struct Spread<NR_GRADIENT_SPREAD_PAD> {
-static double index_at(NR::Coord r, double const unity = 1.0) {
-    return r<0.0?0.0:r>unity?unity:r;
-}
-static unsigned char const *color_at(NR::Coord r,
-                                     unsigned char const *vector)
-{
-    return vector_index((int)(index_at(r, NR_GRADIENT_VECTOR_LENGTH - 1)+.5), vector);
-  //return vector_index((int)CLAMP(r, 0, (double)(NR_GRADIENT_VECTOR_LENGTH - 1)), vector);
-}
-};
-
-template <>
-struct Spread<NR_GRADIENT_SPREAD_REPEAT> {
-static double index_at(NR::Coord r, double const unity = 1.0) {
-    return r<0.0?(unity+fmod(r,unity)):fmod(r,unity);
-}
-static unsigned char const *color_at(NR::Coord r,
-                                     unsigned char const *vector)
-{
-    return vector_index((int)(index_at(r, NR_GRADIENT_VECTOR_LENGTH - 1)+.5), vector);
-  //return vector_index((int)((long long)r & NRG_MASK), vector);
-}
-};
-
-template <>
-struct Spread<NR_GRADIENT_SPREAD_REFLECT> {
-static double index_at(NR::Coord r, double const unity = 1.0) {
-    r = r<0.0?(2*unity+fmod(r,2*unity)):fmod(r,2*unity);
-    if (r>unity) r=2*unity-r;
-    return r;
-}
-static unsigned char const *color_at(NR::Coord r,
-                                     unsigned char const *vector)
-{
-    return vector_index((int)(index_at(r, NR_GRADIENT_VECTOR_LENGTH - 1)+.5), vector);
-  //int idx = (int) ((long long)r & NRG_2MASK);
-  //if (idx > NRG_MASK) idx = NRG_2MASK - idx;
-  //return vector_index(idx, vector);
-}
-};
-
-template <NR_PIXBLOCK_MODE mode> struct ModeTraits;
-
-template <>
-struct ModeTraits<NR_PIXBLOCK_MODE_R8G8B8A8N> {
-static const unsigned bpp=4;
-};
-
-template <>
-struct ModeTraits<NR_PIXBLOCK_MODE_R8G8B8A8P> {
-static const unsigned bpp=4;
-};
-
-template <>
-struct ModeTraits<NR_PIXBLOCK_MODE_R8G8B8> {
-static const unsigned bpp=3;
-};
-
-template <>
-struct ModeTraits<NR_PIXBLOCK_MODE_A8> {
-static const unsigned bpp=1;
-};
-
-template <NR_PIXBLOCK_MODE mode, bool empty>
-struct Compose {
-static const unsigned bpp=ModeTraits<mode>::bpp;
-static void compose(NRPixBlock *pb, unsigned char *dest,
-                    NRPixBlock *spb, unsigned char const *src)
-{
-    nr_compose_pixblock_pixblock_pixel(pb, dest, spb, src);
-}
-};
-
-template <>
-struct Compose<NR_PIXBLOCK_MODE_R8G8B8A8N, true> {
-static const unsigned bpp=4;
-static void compose(NRPixBlock */*pb*/, unsigned char *dest,
-                    NRPixBlock */*spb*/, unsigned char const *src)
-{
-    std::memcpy(dest, src, 4);
-}
-};
-
-template <>
-struct Compose<NR_PIXBLOCK_MODE_R8G8B8A8P, true> {
-static const unsigned bpp=4;
-static void compose(NRPixBlock */*pb*/, unsigned char *dest,
-                    NRPixBlock */*spb*/, unsigned char const *src)
-{
-    dest[0] = NR_PREMUL_111(src[0], src[3]);
-    dest[1] = NR_PREMUL_111(src[1], src[3]);
-    dest[2] = NR_PREMUL_111(src[2], src[3]);
-    dest[3] = src[3];
-}
-};
-
-template <>
-struct Compose<NR_PIXBLOCK_MODE_R8G8B8, true> {
-static const unsigned bpp=3;
-static void compose(NRPixBlock */*pb*/, unsigned char *dest,
-                    NRPixBlock */*spb*/, unsigned char const *src)
-{
-    dest[0] = NR_COMPOSEN11_1111(src[0], src[3], 255);
-    dest[1] = NR_COMPOSEN11_1111(src[1], src[3], 255);
-    dest[2] = NR_COMPOSEN11_1111(src[2], src[3], 255);
-}
-};
-
-template <>
-struct Compose<NR_PIXBLOCK_MODE_A8, true> {
-static const unsigned bpp=1;
-static void compose(NRPixBlock */*pb*/, unsigned char *dest,
-                    NRPixBlock */*spb*/, unsigned char const *src)
-{
-    dest[0] = src[3];
-}
-};
-
-template <>
-struct Compose<NR_PIXBLOCK_MODE_R8G8B8A8N, false> {
-static const unsigned bpp=4;
-static void compose(NRPixBlock */*pb*/, unsigned char *dest,
-                    NRPixBlock */*spb*/, unsigned char const *src)
-{
-    unsigned int ca;
-    ca = NR_COMPOSEA_112(src[3], dest[3]);
-    dest[0] = NR_COMPOSENNN_111121(src[0], src[3], dest[0], dest[3], ca);
-    dest[1] = NR_COMPOSENNN_111121(src[1], src[3], dest[1], dest[3], ca);
-    dest[2] = NR_COMPOSENNN_111121(src[2], src[3], dest[2], dest[3], ca);
-    dest[3] = NR_NORMALIZE_21(ca);
-}
-};
-
-template <>
-struct Compose<NR_PIXBLOCK_MODE_R8G8B8A8P, false> {
-static const unsigned bpp=4;
-static void compose(NRPixBlock */*pb*/, unsigned char *dest,
-                    NRPixBlock */*spb*/, unsigned char const *src)
-{
-    dest[0] = NR_COMPOSENPP_1111(src[0], src[3], dest[0]);
-    dest[1] = NR_COMPOSENPP_1111(src[1], src[3], dest[1]);
-    dest[2] = NR_COMPOSENPP_1111(src[2], src[3], dest[2]);
-    dest[3] = NR_COMPOSEA_111(src[3], dest[3]);
-}
-};
-
-template <>
-struct Compose<NR_PIXBLOCK_MODE_R8G8B8, false> {
-static const unsigned bpp=3;
-static void compose(NRPixBlock */*pb*/, unsigned char *dest,
-                    NRPixBlock */*spb*/, unsigned char const *src)
-{
-    dest[0] = NR_COMPOSEN11_1111(src[0], src[3], dest[0]);
-    dest[1] = NR_COMPOSEN11_1111(src[1], src[3], dest[1]);
-    dest[2] = NR_COMPOSEN11_1111(src[2], src[3], dest[2]);
-}
-};
-
-template <typename Subtype, typename spread>
-static void
-render_spread(NRGradientRenderer *gr, NRPixBlock *pb)
-{
-    switch (pb->mode) {
-    case NR_PIXBLOCK_MODE_R8G8B8A8N:
-        if (pb->empty) {
-            typedef Compose<NR_PIXBLOCK_MODE_R8G8B8A8N, true> compose;
-            Subtype::template render<compose, spread>(gr, pb);
-        } else {
-            typedef Compose<NR_PIXBLOCK_MODE_R8G8B8A8N, false> compose;
-            Subtype::template render<compose, spread>(gr, pb);
-        }
-        break;
-    case NR_PIXBLOCK_MODE_R8G8B8A8P:
-        if (pb->empty) {
-            typedef Compose<NR_PIXBLOCK_MODE_R8G8B8A8P, true> compose;
-            Subtype::template render<compose, spread>(gr, pb);
-        } else {
-            typedef Compose<NR_PIXBLOCK_MODE_R8G8B8A8P, false> compose;
-            Subtype::template render<compose, spread>(gr, pb);
-        }
-        break;
-    case NR_PIXBLOCK_MODE_R8G8B8:
-        if (pb->empty) {
-            typedef Compose<NR_PIXBLOCK_MODE_R8G8B8, true> compose;
-            Subtype::template render<compose, spread>(gr, pb);
-        } else {
-            typedef Compose<NR_PIXBLOCK_MODE_R8G8B8, false> compose;
-            Subtype::template render<compose, spread>(gr, pb);
-        }
-        break;
-    case NR_PIXBLOCK_MODE_A8:
-        if (pb->empty) {
-            typedef Compose<NR_PIXBLOCK_MODE_A8, true> compose;
-            Subtype::template render<compose, spread>(gr, pb);
-        } else {
-            typedef Compose<NR_PIXBLOCK_MODE_A8, false> compose;
-            Subtype::template render<compose, spread>(gr, pb);
-        }
-        break;
-    }
-}
-
-template <typename Subtype>
-static void
-render(NRRenderer *r, NRPixBlock *pb, NRPixBlock */*m*/)
-{
-    NRGradientRenderer *gr = static_cast<NRGradientRenderer *>(r);
-
-    switch (gr->spread) {
-    case NR_GRADIENT_SPREAD_REPEAT:
-        render_spread<Subtype, Spread<NR_GRADIENT_SPREAD_REPEAT> >(gr, pb);
-        break;
-    case NR_GRADIENT_SPREAD_REFLECT:
-        render_spread<Subtype, Spread<NR_GRADIENT_SPREAD_REFLECT> >(gr, pb);
-        break;
-    case NR_GRADIENT_SPREAD_PAD:
-    default:
-        render_spread<Subtype, Spread<NR_GRADIENT_SPREAD_PAD> >(gr, pb);
-    }
-}
-}
-
-/* Linear */
-
-namespace {
-
-struct Linear {
-template <typename compose, typename spread>
-static void render(NRGradientRenderer *gr, NRPixBlock *pb) {
-    NRLGradientRenderer *lgr = static_cast<NRLGradientRenderer *>(gr);
-
-    int x, y;
-    unsigned char *d;
-    double pos;
-    NRPixBlock spb;
-    int x0, y0, width, height, rs;
-
-    x0 = pb->area.x0;
-    y0 = pb->area.y0;
-    width = pb->area.x1 - pb->area.x0;
-    height = pb->area.y1 - pb->area.y0;
-    rs = pb->rs;
-
-    nr_pixblock_setup_extern(&spb, NR_PIXBLOCK_MODE_R8G8B8A8N,
-                             0, 0, NR_GRADIENT_VECTOR_LENGTH, 1,
-                             (unsigned char *) lgr->vector,
-                             4 * NR_GRADIENT_VECTOR_LENGTH, 0, 0);
-
-    for (y = 0; y < height; y++) {
-        d = NR_PIXBLOCK_PX(pb) + y * rs;
-        pos = (y + y0 - lgr->y0) * lgr->dy + (0 + x0 - lgr->x0) * lgr->dx;
-        for (x = 0; x < width; x++) {
-            unsigned char const *s=spread::color_at(pos, lgr->vector);
-            compose::compose(pb, d, &spb, s);
-            d += compose::bpp;
-            pos += lgr->dx;
-        }
-    }
-
-    nr_pixblock_release(&spb);
-}
-};
-
-}
-
-NRRenderer *
-nr_lgradient_renderer_setup (NRLGradientRenderer *lgr,
-			     const unsigned char *cv, 
-			     unsigned int spread, 
-			     const NR::Matrix *gs2px,
-			     float x0, float y0,
-			     float x1, float y1)
-{
-	NR::Matrix n2gs, n2px, px2n;
-
-	lgr->render = &render<Linear>;
-
-	lgr->vector = cv;
-	lgr->spread = spread;
-
-	n2gs[0] = x1 - x0;
-	n2gs[1] = y1 - y0;
-	n2gs[2] = y1 - y0;
-	n2gs[3] = x0 - x1;
-	n2gs[4] = x0;
-	n2gs[5] = y0;
-
-	n2px = n2gs * (*gs2px);
-	px2n = n2px.inverse();
-
-	lgr->x0 = n2px[4] - 0.5; // These -0.5 offsets make sure that the gradient is sampled in the MIDDLE of each pixel.
-	lgr->y0 = n2px[5] - 0.5;
-	lgr->dx = px2n[0] * (NR_GRADIENT_VECTOR_LENGTH-1);
-	lgr->dy = px2n[2] * (NR_GRADIENT_VECTOR_LENGTH-1);
-
-	return (NRRenderer *) lgr;
-}
-
-/* Radial */
-
-/*
- * The archetype is following
- *
- * gx gy - pixel coordinates
- * Px Py - coordinates, where Fx Fy - gx gy line intersects with circle
- *
- * (1)  (gx - fx) * (Py - fy) = (gy - fy) * (Px - fx)
- * (2)  (Px - cx) * (Px - cx) + (Py - cy) * (Py - cy) = r * r
- *
- * (3)   Py = (Px - fx) * (gy - fy) / (gx - fx) + fy
- * (4)  (gy - fy) / (gx - fx) = D
- * (5)   Py = D * Px - D * fx + fy
- *
- * (6)   D * fx - fy + cy = N
- * (7)   Px * Px - 2 * Px * cx + cx * cx + (D * Px) * (D * Px) - 2 * (D * Px) * N + N * N = r * r
- * (8)  (D * D + 1) * (Px * Px) - 2 * (cx + D * N) * Px + cx * cx + N * N = r * r
- *
- * (9)   A = D * D + 1
- * (10)  B = -2 * (cx + D * N)
- * (11)  C = cx * cx + N * N - r * r
- *
- * (12)  Px = (-B +- SQRT(B * B - 4 * A * C)) / 2 * A
- */
-
-namespace {
-
-struct SymmetricRadial {
-template <typename compose, typename spread>
-static void render(NRGradientRenderer *gr, NRPixBlock *pb)
-{
-    NRRGradientRenderer *rgr = static_cast<NRRGradientRenderer *>(gr);
-
-    NR::Coord const dx = rgr->px2gs[0];
-    NR::Coord const dy = rgr->px2gs[1];
-
-    NRPixBlock spb;
-    nr_pixblock_setup_extern(&spb, NR_PIXBLOCK_MODE_R8G8B8A8N,
-                             0, 0, NR_GRADIENT_VECTOR_LENGTH, 1,
-                             (unsigned char *) rgr->vector,
-                             4 * NR_GRADIENT_VECTOR_LENGTH,
-                             0, 0);
-
-    for (int y = pb->area.y0; y < pb->area.y1; y++) {
-        unsigned char *d = NR_PIXBLOCK_PX(pb) + (y - pb->area.y0) * pb->rs;
-        NR::Coord gx = rgr->px2gs[0] * pb->area.x0 + rgr->px2gs[2] * y + rgr->px2gs[4];
-        NR::Coord gy = rgr->px2gs[1] * pb->area.x0 + rgr->px2gs[3] * y + rgr->px2gs[5];
-        for (int x = pb->area.x0; x < pb->area.x1; x++) {
-            NR::Coord const pos = sqrt(((gx*gx) + (gy*gy)));
-            unsigned char const *s=spread::color_at(pos, rgr->vector);
-            compose::compose(pb, d, &spb, s);
-            d += compose::bpp;
-            gx += dx;
-            gy += dy;
-        }
-    }
-
-    nr_pixblock_release(&spb);
-}
-};
-
-struct Radial {
-template <typename compose, typename spread>
-static void render(NRGradientRenderer *gr, NRPixBlock *pb)
-{
-    NRRGradientRenderer *rgr = static_cast<NRRGradientRenderer *>(gr);
-    int const x0 = pb->area.x0;
-    int const y0 = pb->area.y0;
-    int const x1 = pb->area.x1;
-    int const y1 = pb->area.y1;
-    int const rs = pb->rs;
-
-    NRPixBlock spb;
-    nr_pixblock_setup_extern(&spb, NR_PIXBLOCK_MODE_R8G8B8A8N,
-                             0, 0, NR_GRADIENT_VECTOR_LENGTH, 1,
-                             (unsigned char *) rgr->vector,
-                             4 * NR_GRADIENT_VECTOR_LENGTH,
-                             0, 0);
-
-    for (int y = y0; y < y1; y++) {
-        unsigned char *d = NR_PIXBLOCK_PX(pb) + (y - y0) * rs;
-        NR::Coord gx = rgr->px2gs[0] * x0 + rgr->px2gs[2] * y + rgr->px2gs[4];
-        NR::Coord gy = rgr->px2gs[1] * x0 + rgr->px2gs[3] * y + rgr->px2gs[5];
-        NR::Coord const dx = rgr->px2gs[0];
-        NR::Coord const dy = rgr->px2gs[1];
-        for (int x = x0; x < x1; x++) {
-            NR::Coord const gx2 = gx * gx;
-            NR::Coord const gxy2 = gx2 + gy * gy;
-            NR::Coord const qgx2_4 = gx2 - rgr->C * gxy2;
-            /* INVARIANT: qgx2_4 >= 0.0 */
-            /* qgx2_4 = MAX(qgx2_4, 0.0); */
-            NR::Coord const pxgx = gx + sqrt(qgx2_4);
-            /* We can safely divide by 0 here */
-            /* If we are sure pxgx cannot be -0 */
-            NR::Coord const pos = gxy2 / pxgx * (NR_GRADIENT_VECTOR_LENGTH-1);
-
-            unsigned char const *s;
-            if (pos < (1U << 31)) {
-                s = spread::color_at(pos, rgr->vector);
-            } else {
-                s = vector_index(NR_GRADIENT_VECTOR_LENGTH - 1, rgr->vector);
-            }
-
-            compose::compose(pb, d, &spb, s);
-            d += compose::bpp;
-
-            gx += dx;
-            gy += dy;
-        }
-    }
-
-    nr_pixblock_release(&spb);
-}
-};
-
-}
-
-static void nr_rgradient_render_block_end(NRRenderer *r, NRPixBlock *pb, NRPixBlock *m);
-
-NRRenderer *
-nr_rgradient_renderer_setup(NRRGradientRenderer *rgr,
-                            unsigned char const *cv,
-                            unsigned spread,
-                            NR::Matrix const *gs2px,
-                            float cx, float cy,
-                            float fx, float fy,
-                            float r)
-{
-    rgr->vector = cv;
-    rgr->spread = spread;
-
-    if (r < NR_EPSILON) {
-        rgr->render = nr_rgradient_render_block_end;
-    } else if (NR_DF_TEST_CLOSE(cx, fx, NR_EPSILON) &&
-               NR_DF_TEST_CLOSE(cy, fy, NR_EPSILON)) {
-        rgr->render = render<SymmetricRadial>;
-
-        rgr->px2gs = gs2px->inverse();
-        rgr->px2gs[0] *= (NR_GRADIENT_VECTOR_LENGTH-1) / r;
-        rgr->px2gs[1] *= (NR_GRADIENT_VECTOR_LENGTH-1) / r;
-        rgr->px2gs[2] *= (NR_GRADIENT_VECTOR_LENGTH-1) / r;
-        rgr->px2gs[3] *= (NR_GRADIENT_VECTOR_LENGTH-1) / r;
-        rgr->px2gs[4] -= cx;
-        rgr->px2gs[5] -= cy;
-        rgr->px2gs[4] *= (NR_GRADIENT_VECTOR_LENGTH-1) / r;
-        rgr->px2gs[5] *= (NR_GRADIENT_VECTOR_LENGTH-1) / r;
-        rgr->px2gs[4] += 0.5*(rgr->px2gs[0]+rgr->px2gs[2]); // These offsets make sure the gradient is sampled in the MIDDLE of each pixel
-        rgr->px2gs[5] += 0.5*(rgr->px2gs[1]+rgr->px2gs[3]);
-
-        rgr->cx = 0.0;
-        rgr->cy = 0.0;
-        rgr->fx = rgr->cx;
-        rgr->fy = rgr->cy;
-        rgr->r = 1.0;
-    } else {
-        rgr->render = render<Radial>;
-
-        NR::Coord const df = hypot(fx - cx, fy - cy);
-        if (df >= r) {
-            fx = cx + (fx - cx ) * r / (float) df;
-            fy = cy + (fy - cy ) * r / (float) df;
-        }
-
-        NR::Matrix n2gs;
-        n2gs[0] = cx - fx;
-        n2gs[1] = cy - fy;
-        n2gs[2] = cy - fy;
-        n2gs[3] = fx - cx;
-        n2gs[4] = fx;
-        n2gs[5] = fy;
-
-        NR::Matrix n2px;
-        n2px = n2gs * (*gs2px);
-        rgr->px2gs = n2px.inverse();
-        rgr->px2gs[4] += 0.5*(rgr->px2gs[0]+rgr->px2gs[2]); // These offsets make sure the gradient is sampled in the MIDDLE of each pixel
-        rgr->px2gs[5] += 0.5*(rgr->px2gs[1]+rgr->px2gs[3]);
-
-        rgr->cx = 1.0;
-        rgr->cy = 0.0;
-        rgr->fx = 0.0;
-        rgr->fy = 0.0;
-        rgr->r = r / (float) hypot(fx - cx, fy - cy);
-        rgr->C = 1.0F - rgr->r * rgr->r;
-        /* INVARIANT: C < 0 */
-        rgr->C = MIN(rgr->C, -NR_EPSILON);
-    }
-
-    return (NRRenderer *) rgr;
-}
-
-static void
-nr_rgradient_render_block_end(NRRenderer *r, NRPixBlock *pb, NRPixBlock *m)
-{
-    unsigned char const *c = ((NRRGradientRenderer *) r)->vector + 4 * (NR_GRADIENT_VECTOR_LENGTH - 1);
-
-    nr_blit_pixblock_mask_rgba32(pb, m, (c[0] << 24) | (c[1] << 16) | (c[2] << 8) | c[3]);
-}
-
-/*
-  Local Variables:
-  mode:c++
-  c-file-style:"stroustrup"
-  c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
-  indent-tabs-mode:nil
-  fill-column:99
-  End:
-*/
-// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99 :