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#include "nes/app/graphics/renderer.hh"
#include "nes/app/graphics/color.hh"
#include "nes/app/graphics/mask-tile.hh"
#include "nes/app/graphics/image-tile.hh"
#include "nes/app/graphics/image-view.hh"
#include "nes/app/graphics/text-attributes.hh"
#include "nes/app/graphics/tiles/characters.hh"
#include "nes/app/graphics/tiles/borders.hh"
#include "nes/common/display.hh"
#include "nes/common/utils.hh"
namespace nes::app
{
renderer::renderer(display& display)
: display_{ display }
{
}
auto renderer::render_image_tile(i32 const x, i32 const y, image_tile const& tile) -> void
{
if (x < 0 || y < 0 || x >= static_cast<i32>(width) || y >= static_cast<i32>(height)) { return; }
for (auto y_px = u32{ 0 }; y_px < 8; ++y_px)
{
for (auto x_px = u32{ 0 }; x_px < 8; ++x_px)
{
auto const c = tile.data[y_px * 8 + x_px];
if (c != color::transparent)
{
display_.set(8 * static_cast<u32>(x) + x_px, 8 * static_cast<u32>(y) + y_px, resolve_color(c));
}
}
}
}
auto renderer::render_mask_tile(i32 const x, i32 const y, mask_tile const tile, color const c) -> void
{
if (c == color::transparent) { return; }
if (x < 0 || y < 0 || x >= static_cast<i32>(width) || y >= static_cast<i32>(height)) { return; }
auto const resolved = resolve_color(c);
for (auto y_px = u32{ 0 }; y_px < 8; ++y_px)
{
auto row = tile.data[y_px];
for (auto x_px = u32{ 0 }; x_px < 8; ++x_px)
{
if (row & 0b10000000)
{
display_.set(8 * static_cast<u32>(x) + x_px, 8 * static_cast<u32>(y) + y_px, resolved);
}
row <<= 1;
}
}
}
auto renderer::render_image(i32 const x, i32 const y, image_view const image) -> void
{
for (auto y_img = u32{ 0 }; y_img < image.get_height(); ++y_img)
{
for (auto x_img = u32{ 0 }; x_img < image.get_width(); ++x_img)
{
render_image_tile(x + static_cast<i32>(x_img), y + static_cast<i32>(y_img), image.get(x_img, y_img));
}
}
}
auto renderer::render_text(
i32 x, i32 const y, string_view const str, color const c, text_attributes const attributes) -> u32
{
// Enforce max length
char buffer[width];
auto const length = min(str.get_length(), min(width, attributes.get_max_width()));
auto const ellipsize_dots = min(length, u32{ 3 });
// Enforce ellipsize mode
if (str.get_length() > length)
{
switch (attributes.get_ellipsize_mode())
{
case ellipsize_mode::clip:
{
copy(str.get_data(), buffer, length);
break;
}
case ellipsize_mode::end:
{
copy(str.get_data(), buffer, length);
for (auto i = u32{ 0 }; i < ellipsize_dots; ++i) { buffer[length - 1 - i] = '.'; }
break;
}
case ellipsize_mode::start:
{
copy(str.get_data() + str.get_length() - length, buffer, length);
for (auto i = u32{ 0 }; i < ellipsize_dots; ++i) { buffer[i] = '.'; }
break;
}
case ellipsize_mode::middle:
{
auto const visible = length - ellipsize_dots;
auto const start = visible / 2;
auto const end = visible - start;
copy(str.get_data(), buffer, start);
for (auto i = u32{ 0 }; i < ellipsize_dots; ++i) { buffer[start + i] = '.'; }
copy(str.get_data() + str.get_length() - end, buffer + start + ellipsize_dots, end);
break;
}
}
}
else
{
copy(str.get_data(), buffer, length);
}
// Enforce alignment
switch (attributes.get_alignment())
{
case text_alignment::left: break;
case text_alignment::center: x -= length / 2; break;
case text_alignment::right: x -= length; break;
}
// Draw the text
for (auto i = u32{ 0 }; i < length; ++i)
{
render_mask_tile(x + static_cast<i32>(i), y, resolve_character(buffer[i]), c);
}
return length;
}
auto renderer::render_rect(i32 const x, i32 const y, u32 const width, u32 const height, color const c) -> void
{
if (c == color::transparent) { return; }
auto const resolved = resolve_color(c);
auto const x_stop = min(x + static_cast<i32>(width), static_cast<i32>(renderer::width));
auto const y_stop = min(y + static_cast<i32>(height), static_cast<i32>(renderer::height));
auto const x_start = max(x, 0);
auto const y_start = max(y, 0);
for (auto y_px = i32{ y_start * 8 }; y_px < y_stop * 8; ++y_px)
{
for (auto x_px = i32{ x_start * 8 }; x_px < x_stop * 8; ++x_px)
{
display_.set(static_cast<u32>(x_px), static_cast<u32>(y_px), resolved);
}
}
}
auto renderer::render_border(i32 const x, i32 const y, u32 const width, u32 const height, color const c) -> void
{
if (width <= 1 || height <= 1) { return; }
auto const x_last = min(x + static_cast<i32>(width), static_cast<i32>(renderer::width)) - 1;
auto const y_last = min(y + static_cast<i32>(height), static_cast<i32>(renderer::height)) - 1;
auto const x_start = max(x, 0);
auto const y_start = max(y, 0);
for (auto border_y = i32{ y_start }; border_y <= y_last; ++border_y)
{
for (auto border_x = i32{ x_start }; border_x <= x_last; ++border_x)
{
if (border_x == x_start && border_y == y_start)
{
render_mask_tile(border_x, border_y, tiles::border_top_left, c);
}
else if (border_x == x_last && border_y == y_start)
{
render_mask_tile(border_x, border_y, tiles::border_top_right, c);
}
else if (border_x == x_last && border_y == y_last)
{
render_mask_tile(border_x, border_y, tiles::border_bottom_right, c);
}
else if (border_x == x_start && border_y == y_last)
{
render_mask_tile(border_x, border_y, tiles::border_bottom_left, c);
}
else if (border_x == x_start)
{
render_mask_tile(border_x, border_y, tiles::border_left, c);
}
else if (border_x == x_last)
{
render_mask_tile(border_x, border_y, tiles::border_right, c);
}
else if (border_y == y_start)
{
render_mask_tile(border_x, border_y, tiles::border_top, c);
}
else if (border_y == y_last)
{
render_mask_tile(border_x, border_y, tiles::border_bottom, c);
}
}
}
}
auto renderer::render_fill(color const c) -> void
{
render_rect(0, 0, width, height, c);
}
auto renderer::resolve_color(color const c) const -> rgb
{
switch (c)
{
case color::transparent: break;
case color::background_primary: return rgb::from_hex(0x004058);
case color::background_secondary: return rgb::from_hex(0x002B3B);
case color::foreground_primary: return rgb::from_hex(0xFCFCFC);
case color::foreground_secondary: return rgb::from_hex(0x008888);
case color::accent_primary: return rgb::from_hex(0xE45C10);
case color::accent_secondary: return rgb::from_hex(0x881400);
case color::fixed_white: return rgb::from_hex(0xFCFCFC);
case color::fixed_gray: return rgb::from_hex(0xBCBCBC);
case color::fixed_black: return rgb::from_hex(0x000000);
}
return rgb::from_hex(0x000000);
}
auto renderer::resolve_character(char const c) const -> mask_tile
{
switch (c)
{
case ' ': return mask_tile{};
case 'a': case 'A': return tiles::letter_a;
case 'b': case 'B': return tiles::letter_b;
case 'c': case 'C': return tiles::letter_c;
case 'd': case 'D': return tiles::letter_d;
case 'e': case 'E': return tiles::letter_e;
case 'f': case 'F': return tiles::letter_f;
case 'g': case 'G': return tiles::letter_g;
case 'h': case 'H': return tiles::letter_h;
case 'i': case 'I': return tiles::letter_i;
case 'j': case 'J': return tiles::letter_j;
case 'k': case 'K': return tiles::letter_k;
case 'l': case 'L': return tiles::letter_l;
case 'm': case 'M': return tiles::letter_m;
case 'n': case 'N': return tiles::letter_n;
case 'o': case 'O': return tiles::letter_o;
case 'p': case 'P': return tiles::letter_p;
case 'q': case 'Q': return tiles::letter_q;
case 'r': case 'R': return tiles::letter_r;
case 's': case 'S': return tiles::letter_s;
case 't': case 'T': return tiles::letter_t;
case 'u': case 'U': return tiles::letter_u;
case 'v': case 'V': return tiles::letter_v;
case 'w': case 'W': return tiles::letter_w;
case 'x': case 'X': return tiles::letter_x;
case 'y': case 'Y': return tiles::letter_y;
case 'z': case 'Z': return tiles::letter_z;
case '0': return tiles::digit_0;
case '1': return tiles::digit_1;
case '2': return tiles::digit_2;
case '3': return tiles::digit_3;
case '4': return tiles::digit_4;
case '5': return tiles::digit_5;
case '6': return tiles::digit_6;
case '7': return tiles::digit_7;
case '8': return tiles::digit_8;
case '9': return tiles::digit_9;
case '&': return tiles::symbol_ampersand;
case '\'': return tiles::symbol_apostrophe;
case '@': return tiles::symbol_at;
case '\\': return tiles::symbol_backslash;
case '{': return tiles::symbol_brace_open;
case '}': return tiles::symbol_brace_close;
case '[': return tiles::symbol_bracket_open;
case ']': return tiles::symbol_bracket_close;
case ':': return tiles::symbol_colon;
case ',': return tiles::symbol_comma;
case '$': return tiles::symbol_dollar;
case '=': return tiles::symbol_equal;
case '!': return tiles::symbol_exclamation_mark;
case '>': return tiles::symbol_greater;
case '#': return tiles::symbol_hashtag;
case '^': return tiles::symbol_hat;
case '<': return tiles::symbol_less;
case '-': return tiles::symbol_minus;
case '(': return tiles::symbol_paren_open;
case ')': return tiles::symbol_paren_close;
case '%': return tiles::symbol_percent;
case '.': return tiles::symbol_period;
case '|': return tiles::symbol_pipe;
case '+': return tiles::symbol_plus;
case '?': return tiles::symbol_question_mark;
case '"': return tiles::symbol_quotation_mark;
case ';': return tiles::symbol_semicolon;
case '/': return tiles::symbol_slash;
case '*': return tiles::symbol_star;
case '_': return tiles::symbol_underscore;
default: return tiles::symbol_unknown;
}
}
} // namespace nes::app
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