notcurses/src/tests/bitmap.cpp
2021-07-10 17:54:06 -04:00

668 lines
22 KiB
C++

#include "main.h"
#include "visual-details.h"
#include <vector>
TEST_CASE("Bitmaps") {
auto nc_ = testing_notcurses();
REQUIRE(nullptr != nc_);
auto n_ = notcurses_stdplane(nc_);
REQUIRE(n_);
if(!notcurses_check_pixel_support(nc_)){
CHECK(!notcurses_stop(nc_));
return;
}
SUBCASE("SprixelTermValues") {
CHECK(0 < nc_->tcache.cellpixy);
CHECK(0 < nc_->tcache.cellpixx);
CHECK(nc_->tcache.pixel_draw);
}
SUBCASE("SprixelMinimize") {
auto y = 10;
auto x = 10;
std::vector<uint32_t> v(x * y, htole(0xe61c28ff));
auto ncv = ncvisual_from_rgba(v.data(), y, sizeof(decltype(v)::value_type) * x, x);
REQUIRE(nullptr != ncv);
struct ncvisual_options vopts = {
.n = nullptr,
.scaling = NCSCALE_NONE,
.y = 0, .x = 0,
.begy = 0, .begx = 0,
.leny = 0, .lenx = 0,
.blitter = NCBLIT_PIXEL,
.flags = NCVISUAL_OPTION_NODEGRADE,
.transcolor = 0,
};
CHECK(0 == ncvisual_resize(ncv, 1, 1));
auto n = ncvisual_render(nc_, ncv, &vopts);
REQUIRE(nullptr != n);
auto s = n->sprite;
REQUIRE(nullptr != s);
ncvisual_destroy(ncv);
CHECK(0 == ncplane_destroy(n));
}
SUBCASE("SprixelMaximize") {
auto y = 10;
auto x = 10;
std::vector<uint32_t> v(x * y, htole(0xe61c28ff));
auto ncv = ncvisual_from_rgba(v.data(), y, sizeof(decltype(v)::value_type) * x, x);
REQUIRE(nullptr != ncv);
auto nn = ncplane_dup(n_, nullptr);
REQUIRE(nullptr != nn);
struct ncvisual_options vopts = {
.n = nn,
.scaling = NCSCALE_NONE,
.y = 0, .x = 0,
.begy = 0, .begx = 0,
.leny = 0, .lenx = 0,
.blitter = NCBLIT_PIXEL,
.flags = NCVISUAL_OPTION_NODEGRADE,
.transcolor = 0,
};
int maxy, maxx;
ncplane_pixelgeom(n_, nullptr, nullptr, nullptr, nullptr, &maxy, &maxx);
CHECK(0 == ncvisual_resize(ncv, maxy, maxx));
auto n = ncvisual_render(nc_, ncv, &vopts);
REQUIRE(nn == n);
auto s = n->sprite;
REQUIRE(nullptr != s);
CHECK(0 == notcurses_render(nc_));
ncvisual_destroy(ncv);
CHECK(0 == ncplane_destroy(nn));
}
// a sprixel requires a plane large enough to hold it
SUBCASE("SprixelTooTall") {
auto y = nc_->tcache.cellpixy + 6;
auto x = nc_->tcache.cellpixx;
std::vector<uint32_t> v(x * y, htole(0xe61c28ff));
auto ncv = ncvisual_from_rgba(v.data(), y, sizeof(decltype(v)::value_type) * x, x);
REQUIRE(nullptr != ncv);
struct ncplane_options nopts = {
.y = 0, .x = 0,
.rows = 1, .cols = 1,
.userptr = nullptr, .name = "small", .resizecb = nullptr,
.flags = 0, .margin_b = 0, .margin_r = 0,
};
auto n = ncplane_create(n_, &nopts);
struct ncvisual_options vopts = {
.n = n,
.scaling = NCSCALE_NONE,
.y = 0,
.x = 0,
.begy = 0, .begx = 0,
.leny = 0, .lenx = 0,
.blitter = NCBLIT_PIXEL,
.flags = NCVISUAL_OPTION_NODEGRADE,
.transcolor = 0,
};
CHECK(nullptr == ncvisual_render(nc_, ncv, &vopts));
CHECK(0 == notcurses_render(nc_));
ncvisual_destroy(ncv);
CHECK(0 == ncplane_destroy(n));
}
SUBCASE("SprixelTooWide") {
auto y = nc_->tcache.cellpixy;
auto x = nc_->tcache.cellpixx + 1;
std::vector<uint32_t> v(x * y, htole(0xe61c28ff));
auto ncv = ncvisual_from_rgba(v.data(), y, sizeof(decltype(v)::value_type) * x, x);
REQUIRE(nullptr != ncv);
struct ncplane_options nopts = {
.y = 0, .x = 0,
.rows = 1, .cols = 1,
.userptr = nullptr, .name = "small", .resizecb = nullptr,
.flags = 0, .margin_b = 0, .margin_r = 0,
};
auto n = ncplane_create(n_, &nopts);
struct ncvisual_options vopts = {
.n = n,
.scaling = NCSCALE_NONE,
.y = 0,
.x = 0,
.begy = 0, .begx = 0,
.leny = 0, .lenx = 0,
.blitter = NCBLIT_PIXEL,
.flags = NCVISUAL_OPTION_NODEGRADE,
.transcolor = 0,
};
CHECK(nullptr == ncvisual_render(nc_, ncv, &vopts));
CHECK(0 == notcurses_render(nc_));
ncvisual_destroy(ncv);
CHECK(0 == ncplane_destroy(n));
CHECK(0 == notcurses_render(nc_));
}
// should not be able to emit glyphs to a sprixelated plane
SUBCASE("SprixelNoGlyphs") {
auto y = nc_->tcache.cellpixy;
auto x = nc_->tcache.cellpixx;
std::vector<uint32_t> v(x * y, htole(0xe61c28ff));
auto ncv = ncvisual_from_rgba(v.data(), y, sizeof(decltype(v)::value_type) * x, x);
REQUIRE(nullptr != ncv);
struct ncplane_options nopts = {
.y = 0, .x = 0,
.rows = 1, .cols = 1,
.userptr = nullptr, .name = "small", .resizecb = nullptr,
.flags = 0, .margin_b = 0, .margin_r = 0,
};
auto n = ncplane_create(n_, &nopts);
struct ncvisual_options vopts = {
.n = n,
.scaling = NCSCALE_NONE,
.y = 0,
.x = 0,
.begy = 0, .begx = 0,
.leny = 0, .lenx = 0,
.blitter = NCBLIT_PIXEL,
.flags = NCVISUAL_OPTION_NODEGRADE,
.transcolor = 0,
};
CHECK(nullptr != ncvisual_render(nc_, ncv, &vopts));
CHECK(0 > ncplane_putchar_yx(n, ' ', 0, 0));
CHECK(0 == notcurses_render(nc_));
ncvisual_destroy(ncv);
CHECK(0 == ncplane_destroy(n));
CHECK(0 == notcurses_render(nc_));
}
SUBCASE("BitmapStack") {
auto y = nc_->tcache.cellpixy * 10;
auto x = nc_->tcache.cellpixx * 10;
std::vector<uint32_t> v(x * y, htole(0xe61c28ff));
auto ncv = ncvisual_from_rgba(v.data(), y, sizeof(decltype(v)::value_type) * x, x);
REQUIRE(nullptr != ncv);
struct ncvisual_options vopts = {
.n = nullptr, .scaling = NCSCALE_NONE,
.y = 0,
.x = 0,
.begy = 0, .begx = 0,
.leny = 0, .lenx = 0,
.blitter = NCBLIT_PIXEL,
.flags = NCVISUAL_OPTION_NODEGRADE,
.transcolor = 0,
};
auto botn = ncvisual_render(nc_, ncv, &vopts);
REQUIRE(nullptr != botn);
// should just have a red plane
CHECK(0 == notcurses_render(nc_));
y = nc_->tcache.cellpixy * 5;
x = nc_->tcache.cellpixx * 5;
std::vector<uint32_t> v2(x * y, htole(0x8142f1ff));
auto ncv2 = ncvisual_from_rgba(v2.data(), y, sizeof(decltype(v2)::value_type) * x, x);
REQUIRE(nullptr != ncv2);
auto topn = ncvisual_render(nc_, ncv2, &vopts);
REQUIRE(nullptr != topn);
// should have a yellow plane partially obscuring a red one
CHECK(0 == notcurses_render(nc_));
ncplane_move_yx(topn, 5, 5);
// yellow bitmap ought move to lower right, but remain visible
CHECK(0 == notcurses_render(nc_));
ncplane_move_top(botn);
// should see only the red one now
CHECK(0 == notcurses_render(nc_));
CHECK(0 == ncplane_destroy(botn));
ncvisual_destroy(ncv);
// now we see only yellow
CHECK(0 == notcurses_render(nc_));
CHECK(0 == ncplane_destroy(topn));
ncvisual_destroy(ncv2);
// and now we see none
CHECK(0 == notcurses_render(nc_));
}
#ifdef NOTCURSES_USE_MULTIMEDIA
SUBCASE("PixelRender") {
auto ncv = ncvisual_from_file(find_data("worldmap.png").get());
REQUIRE(ncv);
struct ncvisual_options vopts{};
vopts.blitter = NCBLIT_PIXEL;
vopts.flags = NCVISUAL_OPTION_NODEGRADE;
auto newn = ncvisual_render(nc_, ncv, &vopts);
CHECK(newn);
CHECK(0 == notcurses_render(nc_));
CHECK(0 == ncplane_destroy(newn));
CHECK(0 == notcurses_render(nc_));
ncvisual_destroy(ncv);
CHECK(0 == notcurses_render(nc_));
}
#endif
SUBCASE("BitmapStretch") {
// first, assemble a visual equivalent to 1 cell
auto y = nc_->tcache.cellpixy;
auto x = nc_->tcache.cellpixx;
std::vector<uint32_t> v(x * y, htole(0xffffffff));
auto ncv = ncvisual_from_rgba(v.data(), y, sizeof(decltype(v)::value_type) * x, x);
REQUIRE(nullptr != ncv);
struct ncvisual_options vopts = {
.n = nullptr,
.scaling = NCSCALE_NONE,
.y = 0, .x = 0,
.begy = 0, .begx = 0,
.leny = 0, .lenx = 0,
.blitter = NCBLIT_PIXEL,
.flags = NCVISUAL_OPTION_NODEGRADE,
.transcolor = 0,
};
auto n = ncvisual_render(nc_, ncv, &vopts);
REQUIRE(nullptr != n);
auto s = n->sprite;
REQUIRE(nullptr != s);
CHECK(nc_->tcache.cellpixy == ncv->pixy);
CHECK(nc_->tcache.cellpixx == ncv->pixx);
CHECK(0 == notcurses_render(nc_));
struct ncplane_options nopts = {
.y = 1,
.x = 1,
.rows = 4,
.cols = 4,
.userptr = nullptr, .name = "bigp", .resizecb = nullptr,
.flags = 0, .margin_b = 0, .margin_r = 0,
};
vopts.scaling = NCSCALE_SCALE;
auto bigp = ncplane_create(n_, &nopts);
REQUIRE(bigp);
vopts.n = bigp;
uint64_t white = NCCHANNELS_INITIALIZER(0xff, 0xff, 0xff, 0xff, 0xff, 0xff);
ncplane_set_base(bigp, "x", 0, white);
CHECK(vopts.n == ncvisual_render(nc_, ncv, &vopts));
CHECK(0 == notcurses_render(nc_));
CHECK(0 == ncvisual_resize_noninterpolative(ncv, ncv->pixy * 4, ncv->pixx * 4));
CHECK(4 * nc_->tcache.cellpixy == ncv->pixy);
CHECK(4 * nc_->tcache.cellpixx == ncv->pixx);
vopts.y = 1;
vopts.x = 6;
vopts.n = nullptr;
vopts.scaling = NCSCALE_NONE;
auto infn = ncvisual_render(nc_, ncv, &vopts);
REQUIRE(infn);
if(nc_->tcache.sprixel_scale_height == 6){
if(4 * nc_->tcache.cellpixy % 6){
CHECK(5 == ncplane_dim_y(infn));
}else{
CHECK(4 == ncplane_dim_y(infn));
}
}else{
CHECK(nc_->tcache.sprixel_scale_height == 1);
CHECK(4 == ncplane_dim_y(infn));
}
CHECK(4 == ncplane_dim_x(infn));
CHECK(0 == notcurses_render(nc_));
CHECK(0 == ncvisual_resize(ncv, 8, 8));
CHECK(ncv->pixy == 8);
CHECK(ncv->pixx == 8);
vopts.x = 11;
auto resizen = ncvisual_render(nc_, ncv, &vopts);
REQUIRE(resizen);
CHECK((8 + nc_->tcache.cellpixy - 1) / nc_->tcache.cellpixy == ncplane_dim_y(resizen));
CHECK((8 + nc_->tcache.cellpixx - 1) / nc_->tcache.cellpixx == ncplane_dim_x(resizen));
CHECK(0 == notcurses_render(nc_));
CHECK(0 == ncplane_destroy(bigp));
CHECK(0 == ncplane_destroy(resizen));
CHECK(0 == ncplane_destroy(infn));
CHECK(0 == ncplane_destroy(n));
ncvisual_destroy(ncv);
CHECK(0 == notcurses_render(nc_));
}
// create an image of exactly 1 cell, inflate it, scale it, and compare the
// resulting geometries for equality
SUBCASE("InflateVsScale") {
// first, assemble a visual equivalent to 1 cell
auto y = nc_->tcache.cellpixy;
auto x = nc_->tcache.cellpixx;
std::vector<uint32_t> v(x * y, htole(0xff7799dd));
auto ncv = ncvisual_from_rgba(v.data(), y, sizeof(decltype(v)::value_type) * x, x);
REQUIRE(nullptr != ncv);
struct ncvisual_options vopts = {
.n = nullptr,
.scaling = NCSCALE_NONE,
.y = 0, .x = 0,
.begy = 0, .begx = 0,
.leny = 0, .lenx = 0,
.blitter = NCBLIT_PIXEL,
.flags = NCVISUAL_OPTION_NODEGRADE,
.transcolor = 0,
};
auto n = ncvisual_render(nc_, ncv, &vopts);
REQUIRE(nullptr != n);
struct ncplane_options nopts = {
.y = 2,
.x = 0,
.rows = 5,
.cols = 4,
.userptr = nullptr, .name = "scale", .resizecb = nullptr,
.flags = 0, .margin_b = 0, .margin_r = 0,
};
auto nres = ncplane_create(n_, &nopts);
REQUIRE(nullptr != nres);
vopts.n = nres;
vopts.scaling = NCSCALE_SCALE;
ncvisual_render(nc_, ncv, &vopts);
CHECK(4 == ncplane_dim_x(vopts.n));
CHECK(0 == ncvisual_resize_noninterpolative(ncv, ncv->pixy * 4, ncv->pixx * 4));
vopts.n = nullptr;
vopts.y = 2;
vopts.x = 5;
vopts.scaling = NCSCALE_NONE;
auto ninf = ncvisual_render(nc_, ncv, &vopts);
REQUIRE(nullptr != ninf);
CHECK(ncplane_dim_y(nres) == ncplane_dim_y(ninf));
CHECK(ncplane_dim_x(nres) == ncplane_dim_x(ninf));
CHECK(0 == notcurses_render(nc_));
ncvisual_destroy(ncv);
CHECK(0 == ncplane_destroy(n));
CHECK(0 == ncplane_destroy(ninf));
CHECK(0 == ncplane_destroy(nres));
}
// test NCVISUAL_OPTIONS_CHILDPLANE + stretch + (null) alignment
SUBCASE("ImageChildScaling") {
struct ncplane_options opts = {
.y = 0, .x = 0,
.rows = 18, .cols = 5,
.userptr = nullptr,
.name = "parent",
.resizecb = nullptr,
.flags = 0,
.margin_b = 0,
.margin_r = 0,
};
auto parent = ncplane_create(n_, &opts);
REQUIRE(parent);
struct ncvisual_options vopts = {
.n = parent,
.scaling = NCSCALE_STRETCH,
.y = NCALIGN_CENTER,
.x = NCALIGN_CENTER,
.begy = 0, .begx = 0,
.leny = 0, .lenx = 0,
.blitter = NCBLIT_PIXEL,
.flags = NCVISUAL_OPTION_CHILDPLANE |
NCVISUAL_OPTION_HORALIGNED |
NCVISUAL_OPTION_VERALIGNED,
.transcolor = 0,
};
auto y = nc_->tcache.cellpixy * 6;
auto x = nc_->tcache.cellpixx;
std::vector<uint32_t> v(x * y, htole(0xffffffff));
auto ncv = ncvisual_from_rgba(v.data(), y, sizeof(decltype(v)::value_type) * x, x);
REQUIRE(nullptr != ncv);
auto child = ncvisual_render(nc_, ncv, &vopts);
REQUIRE(child);
CHECK(18 == ncplane_dim_y(child));
CHECK(5 == ncplane_dim_x(child));
CHECK(0 == ncplane_y(child));
CHECK(0 == ncplane_x(child));
ncvisual_destroy(ncv);
CHECK(0 == ncplane_destroy(parent));
CHECK(0 == ncplane_destroy(child));
}
SUBCASE("ImageChildAlignment") {
struct ncplane_options opts = {
.y = 0, .x = 0,
.rows = 18, .cols = 5,
.userptr = nullptr,
.name = "parent",
.resizecb = nullptr,
.flags = 0,
.margin_b = 0,
.margin_r = 0,
};
auto parent = ncplane_create(n_, &opts);
REQUIRE(parent);
struct ncvisual_options vopts = {
.n = parent,
.scaling = NCSCALE_NONE,
.y = NCALIGN_CENTER,
.x = NCALIGN_CENTER,
.begy = 0, .begx = 0,
.leny = 0, .lenx = 0,
.blitter = NCBLIT_PIXEL,
.flags = NCVISUAL_OPTION_CHILDPLANE |
NCVISUAL_OPTION_HORALIGNED |
NCVISUAL_OPTION_VERALIGNED,
.transcolor = 0,
};
auto y = nc_->tcache.cellpixy * 6;
auto x = nc_->tcache.cellpixx;
std::vector<uint32_t> v(x * y, htole(0xffffffff));
auto ncv = ncvisual_from_rgba(v.data(), y, sizeof(decltype(v)::value_type) * x, x);
REQUIRE(nullptr != ncv);
auto child = ncvisual_render(nc_, ncv, &vopts);
REQUIRE(child);
CHECK(6 == ncplane_dim_y(child));
CHECK(1 == ncplane_dim_x(child));
CHECK(6 == ncplane_y(child));
CHECK(2 == ncplane_x(child));
ncvisual_destroy(ncv);
CHECK(0 == ncplane_destroy(parent));
CHECK(0 == ncplane_destroy(child));
}
SUBCASE("PixelCellWipe") {
// first, assemble a visual equivalent to 4 cells
auto y = 2 * nc_->tcache.cellpixy;
auto x = 2 * nc_->tcache.cellpixx;
std::vector<uint32_t> v(x * y, htole(0xffffffff));
auto ncv = ncvisual_from_rgba(v.data(), y, sizeof(decltype(v)::value_type) * x, x);
REQUIRE(nullptr != ncv);
struct ncvisual_options vopts = {
.n = nullptr,
.scaling = NCSCALE_NONE,
.y = 0, .x = 0,
.begy = 0, .begx = 0,
.leny = y, .lenx = x,
.blitter = NCBLIT_PIXEL,
.flags = NCVISUAL_OPTION_NODEGRADE,
.transcolor = 0,
};
auto n = ncvisual_render(nc_, ncv, &vopts);
REQUIRE(nullptr != n);
auto s = n->sprite;
REQUIRE(nullptr != s);
CHECK(0 == notcurses_render(nc_));
CHECK(1 == ncplane_putchar_yx(n_, 0, 0, 'x'));
CHECK(0 == notcurses_render(nc_));
CHECK(1 == ncplane_putchar_yx(n_, 1, 1, 'x'));
CHECK(0 == notcurses_render(nc_));
CHECK(1 == ncplane_putchar_yx(n_, 1, 0, 'x'));
CHECK(0 == notcurses_render(nc_));
CHECK(1 == ncplane_putchar_yx(n_, 0, 1, 'x'));
CHECK(0 == notcurses_render(nc_));
CHECK(0 == ncplane_destroy(n));
ncvisual_destroy(ncv);
CHECK(0 == notcurses_render(nc_));
}
SUBCASE("PixelCellWipePolychromatic") {
// first, assemble a visual equivalent to 4 cells
auto y = 2 * nc_->tcache.cellpixy;
auto x = 2 * nc_->tcache.cellpixx;
std::vector<uint32_t> v(x * y, htole(0xffffffff));
for(auto& e : v){
e -= htole(random() % 0x1000000);
}
auto ncv = ncvisual_from_rgba(v.data(), y, sizeof(decltype(v)::value_type) * x, x);
REQUIRE(nullptr != ncv);
struct ncvisual_options vopts = {
.n = nullptr,
.scaling = NCSCALE_NONE,
.y = 0, .x = 0,
.begy = 0, .begx = 0,
.leny = y, .lenx = x,
.blitter = NCBLIT_PIXEL,
.flags = NCVISUAL_OPTION_NODEGRADE,
.transcolor = 0,
};
auto n = ncvisual_render(nc_, ncv, &vopts);
REQUIRE(nullptr != n);
auto s = n->sprite;
REQUIRE(nullptr != s);
CHECK(0 == notcurses_render(nc_));
CHECK(1 == ncplane_putchar_yx(n_, 0, 0, 'x'));
CHECK(0 == notcurses_render(nc_));
CHECK(1 == ncplane_putchar_yx(n_, 1, 1, 'x'));
CHECK(0 == notcurses_render(nc_));
CHECK(1 == ncplane_putchar_yx(n_, 1, 0, 'x'));
CHECK(0 == notcurses_render(nc_));
CHECK(1 == ncplane_putchar_yx(n_, 0, 1, 'x'));
CHECK(0 == notcurses_render(nc_));
CHECK(0 == ncplane_destroy(n));
ncvisual_destroy(ncv);
CHECK(0 == notcurses_render(nc_));
}
SUBCASE("PixelBigCellWipePolychromatic") {
// first, assemble a visual equivalent to 100 cells
auto y = 10 * nc_->tcache.cellpixy;
auto x = 10 * nc_->tcache.cellpixx;
std::vector<uint32_t> v(x * y, htole(0xffffffff));
for(auto& e : v){
e -= htole(random() % 0x1000000);
}
auto ncv = ncvisual_from_rgba(v.data(), y, sizeof(decltype(v)::value_type) * x, x);
REQUIRE(nullptr != ncv);
struct ncvisual_options vopts = {
.n = nullptr,
.scaling = NCSCALE_NONE,
.y = 0, .x = 0,
.begy = 0, .begx = 0,
.leny = y, .lenx = x,
.blitter = NCBLIT_PIXEL,
.flags = NCVISUAL_OPTION_NODEGRADE,
.transcolor = 0,
};
auto n = ncvisual_render(nc_, ncv, &vopts);
REQUIRE(nullptr != n);
auto s = n->sprite;
REQUIRE(nullptr != s);
CHECK(0 == notcurses_render(nc_));
CHECK(1 == ncplane_putchar_yx(n_, 5, 5, 'x'));
CHECK(0 == notcurses_render(nc_));
CHECK(1 == ncplane_putchar_yx(n_, 3, 3, 'x'));
CHECK(0 == notcurses_render(nc_));
CHECK(1 == ncplane_putchar_yx(n_, 8, 8, 'x'));
CHECK(0 == notcurses_render(nc_));
CHECK(1 == ncplane_putchar_yx(n_, 8, 3, 'x'));
CHECK(0 == notcurses_render(nc_));
CHECK(0 == ncplane_destroy(n));
ncvisual_destroy(ncv);
CHECK(0 == notcurses_render(nc_));
}
// verify that the sprixel's TAM is properly initialized
SUBCASE("PixelTAMSetup") {
// first, assemble a visual equivalent to 54 cells
auto dimy = 6;
auto dimx = 9;
auto y = dimy * nc_->tcache.cellpixy;
auto x = dimx * nc_->tcache.cellpixx;
std::vector<uint32_t> v(x * y, htole(0xffffffff));
// every other cell, set some pixels transparent
for(int i = 0 ; i < dimy * dimx ; ++i){
if(i % 2){
int py = (i / dimx) * nc_->tcache.cellpixy;
int px = (i % dimx) * nc_->tcache.cellpixx;
ncpixel_set_a(&v[py * x + px], 0);
}
}
auto ncv = ncvisual_from_rgba(v.data(), y, sizeof(decltype(v)::value_type) * x, x);
REQUIRE(nullptr != ncv);
struct ncvisual_options vopts = {
.n = nullptr,
.scaling = NCSCALE_NONE,
.y = 2, .x = 2,
.begy = 0, .begx = 0,
.leny = y, .lenx = x,
.blitter = NCBLIT_PIXEL,
.flags = NCVISUAL_OPTION_NODEGRADE,
.transcolor = 0,
};
auto n = ncvisual_render(nc_, ncv, &vopts);
REQUIRE(nullptr != n);
ncvisual_destroy(ncv);
CHECK(0 == notcurses_render(nc_));
const auto s = n->sprite;
REQUIRE(s);
CHECK(s->dimy == dimy);
CHECK(s->dimx == dimx);
const auto tam = n->tam;
for(int i = 0 ; i < s->dimy * s->dimx ; ++i){
int py = (i / dimx) * nc_->tcache.cellpixy;
int px = (i % dimx) * nc_->tcache.cellpixx;
// cells with a transparent pixel ought be SPRIXCELL_MIXED;
// cells without one ought be SPRIXCELL_OPAQUE.
sprixcell_e state = tam[(i / dimx) + (i % dimx)].state;
if(i % 2){
if(state == SPRIXCELL_MIXED_SIXEL){
state = SPRIXCELL_MIXED_KITTY;
}
CHECK(SPRIXCELL_MIXED_KITTY == state);
}else{
if(state == SPRIXCELL_OPAQUE_SIXEL){
state = SPRIXCELL_OPAQUE_KITTY;
}
CHECK(SPRIXCELL_OPAQUE_KITTY == state);
}
ncpixel_set_a(&v[py * x + px], 0);
}
for(int yy = vopts.y ; yy < vopts.y + dimy ; ++yy){
for(int xx = vopts.x ; xx < vopts.x + dimx ; ++xx){
sprixcell_e state = sprixel_state(s, yy, xx);
if((yy * dimx + xx) % 2){
if(state == SPRIXCELL_MIXED_SIXEL){
state = SPRIXCELL_MIXED_KITTY;
}
CHECK(SPRIXCELL_MIXED_KITTY == state);
}else{
if(state == SPRIXCELL_OPAQUE_SIXEL){
state = SPRIXCELL_OPAQUE_KITTY;
}
CHECK(SPRIXCELL_OPAQUE_KITTY == state);
}
}
}
CHECK(0 == ncplane_destroy(n));
CHECK(0 == notcurses_render(nc_));
}
#ifdef NOTCURSES_USE_MULTIMEDIA
SUBCASE("PixelWipeImage") {
uint64_t channels = 0;
ncchannels_set_fg_alpha(&channels, NCALPHA_TRANSPARENT);
ncchannels_set_bg_alpha(&channels, NCALPHA_TRANSPARENT);
CHECK(0 == ncplane_set_base(n_, "", 0, channels));
auto ncv = ncvisual_from_file(find_data("worldmap.png").get());
REQUIRE(ncv);
struct ncvisual_options vopts{};
vopts.blitter = NCBLIT_PIXEL;
vopts.flags = NCVISUAL_OPTION_NODEGRADE;
vopts.scaling = NCSCALE_STRETCH;
auto newn = ncvisual_render(nc_, ncv, &vopts);
CHECK(newn);
ncplane_move_bottom(newn);
CHECK(0 == notcurses_render(nc_));
const auto s = newn->sprite;
for(int y = 0 ; y < s->dimy ; ++y){
for(int x = 0 ; x < s->dimx ; ++x){
CHECK(1 == ncplane_putchar_yx(n_, y, x, 'x'));
// FIXME generates too much output, OOMing ctest
// CHECK(0 == notcurses_render(nc_));
}
}
CHECK(0 == ncplane_destroy(newn));
CHECK(0 == notcurses_render(nc_));
ncvisual_destroy(ncv);
CHECK(0 == notcurses_render(nc_));
}
#endif
CHECK(!notcurses_stop(nc_));
}