From fbfc078e9f44c1c1e95c9c484f1d5650bcf631b7 Mon Sep 17 00:00:00 2001 From: Benji Dial Date: Sat, 27 Jul 2024 16:57:39 -0400 Subject: lots and lots of userspace stuff --- libraries/daguerre/include/daguerre.hpp | 209 -------------------- libraries/daguerre/include/daguerre/fixed-font.hpp | 57 ++++++ .../daguerre/include/daguerre/framebuffer.hpp | 9 + libraries/daguerre/include/daguerre/general.hpp | 59 ++++++ libraries/daguerre/include/daguerre/image.hpp | 118 +++++++++++ .../daguerre/include/daguerre/impl/fixed-font.hpp | 59 ++++++ libraries/daguerre/include/daguerre/impl/image.hpp | 217 +++++++++++++++++++++ libraries/daguerre/include/daguerre/ppm.hpp | 20 ++ libraries/daguerre/include/daguerre/psf.hpp | 20 ++ libraries/daguerre/makefile | 2 +- libraries/daguerre/source/daguerre.cpp | 110 ----------- libraries/daguerre/source/framebuffer.cpp | 12 ++ libraries/daguerre/source/ppm.cpp | 60 ++++++ libraries/daguerre/source/psf.cpp | 51 +++++ 14 files changed, 683 insertions(+), 320 deletions(-) delete mode 100644 libraries/daguerre/include/daguerre.hpp create mode 100644 libraries/daguerre/include/daguerre/fixed-font.hpp create mode 100644 libraries/daguerre/include/daguerre/framebuffer.hpp create mode 100644 libraries/daguerre/include/daguerre/general.hpp create mode 100644 libraries/daguerre/include/daguerre/image.hpp create mode 100644 libraries/daguerre/include/daguerre/impl/fixed-font.hpp create mode 100644 libraries/daguerre/include/daguerre/impl/image.hpp create mode 100644 libraries/daguerre/include/daguerre/ppm.hpp create mode 100644 libraries/daguerre/include/daguerre/psf.hpp delete mode 100644 libraries/daguerre/source/daguerre.cpp create mode 100644 libraries/daguerre/source/framebuffer.cpp create mode 100644 libraries/daguerre/source/ppm.cpp create mode 100644 libraries/daguerre/source/psf.cpp (limited to 'libraries/daguerre') diff --git a/libraries/daguerre/include/daguerre.hpp b/libraries/daguerre/include/daguerre.hpp deleted file mode 100644 index 9468826..0000000 --- a/libraries/daguerre/include/daguerre.hpp +++ /dev/null @@ -1,209 +0,0 @@ -#pragma once - -#include -#include -#include -#include - -namespace daguerre { - - typedef uint32_t hilbert_color; - - struct rgb24 { - uint8_t r; - uint8_t g; - uint8_t b; - }; - - template - static inline void default_overlay(color_t &dest, const color_t &src) { - dest = src; - } - - static inline void default_overlay(hilbert_color &dest, const rgb24 &src) { - dest = __euler_encode_color(src.r, src.g, src.b); - } - - static inline void default_overlay(rgb24 &dest, const bool &src) { - dest.r = src ? 255 : 0; - dest.g = src ? 255 : 0; - dest.b = src ? 255 : 0; - } - - template - class image { - - public: - bool delete_buffer_on_destruct; - color_t *buffer; - unsigned width; - unsigned height; - unsigned pitch;//in sizeof(color_t) - - image() - : delete_buffer_on_destruct(false), buffer(0), width(0), height(0), - pitch(0) {} - - image(unsigned width, unsigned height) - : delete_buffer_on_destruct(true), buffer(new color_t[width * height]), - width(width), height(height), pitch(width) {} - - image( - color_t *buffer, unsigned width, unsigned height, unsigned pitch, - bool delete_buffer_on_destruct) - : delete_buffer_on_destruct(delete_buffer_on_destruct), buffer(buffer), - width(width), height(height), pitch(pitch) {} - - ~image() { - if (delete_buffer_on_destruct && buffer) - delete[] buffer; - } - - template - image(const image &other) - : delete_buffer_on_destruct(true), - buffer(new color_t[other.width * other.height]), width(other.width), - height(other.height), pitch(other.width) { - overlay_from(other, 0, 0, 0, 0, width, height); - } - - image(image &&other) - : delete_buffer_on_destruct(other.delete_buffer_on_destruct), - buffer(other.buffer), width(other.width), height(other.height), - pitch(other.pitch) { - other.buffer = 0; - } - - template - image &operator =(const image &other) { - if (delete_buffer_on_destruct && buffer) - delete[] buffer; - delete_buffer_on_destruct = true; - width = other.width; - height = other.height; - pitch = width; - buffer = new color_t[width * height]; - overlay_from(other, 0, 0, 0, 0, width, height); - return *this; - } - - image &operator =(image &&other) { - if (delete_buffer_on_destruct && buffer) - delete[] buffer; - delete_buffer_on_destruct = other.delete_buffer_on_destruct; - buffer = other.buffer; - width = other.width; - height = other.height; - pitch = other.pitch; - other.buffer = 0; - return *this; - } - - color_t get(unsigned x, unsigned y) const { - return buffer[y * pitch + x]; - } - - void set(unsigned x, unsigned y, const color_t &c) { - buffer[y * pitch + x] = c; - } - - void copy_from( - const image &other, unsigned to_x, unsigned to_y, - unsigned from_x, unsigned from_y, unsigned width, unsigned height) { - - color_t *to_start = buffer + pitch * to_y + to_x; - const color_t *from_start = other.buffer + other.pitch * from_y + from_x; - - for (unsigned y = 0; y < height; ++y) - std::memcpy( - to_start + pitch * y, from_start + other.pitch * y, - width * sizeof(color_t)); - - } - - template - void overlay_from( - const image &other, unsigned to_x, unsigned to_y, - unsigned from_x, unsigned from_y, unsigned width, unsigned height) { - - color_t *to_start = buffer + pitch * to_y + to_x; - const other_color_t *from_start = - other.buffer + other.pitch * from_y + from_x; - - for (unsigned y = 0; y < height; ++y) - for (unsigned x = 0; x < width; ++x) - overlay(to_start[pitch * y + x], from_start[other.pitch * y + x]); - - } - - }; - - template - void swap(image &a, image &b) { - std::swap(a.delete_buffer_on_destruct, b.delete_buffer_on_destruct); - std::swap(a.buffer, b.buffer); - std::swap(a.width, b.width); - std::swap(a.height, b.height); - std::swap(a.pitch, b.pitch); - } - - image get_hilbert_framebuffer(); - - bool try_load_ppm(std::FILE *input, image &into); - - static inline bool try_load_ppm(const char *path, image &into) { - std::FILE *f = std::fopen(path, "r"); - if (!f) - return false; - bool success = try_load_ppm(f, into); - std::fclose(f); - return success; - } - - //TODO: unicode - template - class fixed_bitmap_font { - - public: - unsigned width; - unsigned height; - image glyphs[128]; - - template - void overlay_text( - image &target, unsigned x, - unsigned y, const char *text) const { - - while (1) { - uint8_t ch = (uint8_t)*text; - if (ch == 0) - return; - if (ch < 128) { - target.template overlay_from( - glyphs[ch], x, y, 0, 0, width, height); - x += width; - } - ++text; - } - - } - - }; - - bool try_load_psf(std::FILE *input, fixed_bitmap_font &into); - - static inline bool try_load_psf( - const char *path, fixed_bitmap_font &into) { - std::FILE *f = std::fopen(path, "r"); - if (!f) - return false; - bool success = try_load_psf(f, into); - std::fclose(f); - return success; - } - -} diff --git a/libraries/daguerre/include/daguerre/fixed-font.hpp b/libraries/daguerre/include/daguerre/fixed-font.hpp new file mode 100644 index 0000000..471163a --- /dev/null +++ b/libraries/daguerre/include/daguerre/fixed-font.hpp @@ -0,0 +1,57 @@ +#pragma once + +#include + +//TODO: support more than just ascii + +namespace daguerre { + + //forward declare since these depend on each other + template + class image; + + template + class fixed_font { + + public: + int glyph_width; + int glyph_height; + image glyphs[128]; + + //initializes every glyph to an empty image + fixed_font(); + + //initializes each glyph to have the right dimensions and + //a valid buffer, but does nothing to their contents. + fixed_font(int glyph_width, int glyph_height); + + //moves the other font's glyphs here, then + //sets the other font to have empty images. + fixed_font(fixed_font &&other); + + //moves the other font's glyphs here, then + //sets the other font to have empty images. + fixed_font &operator =(fixed_font &&other); + + //use one of the two constructors below instead + fixed_font(const fixed_font &other) = delete; + + //copies the other font's images here, passing them through conversion. + template + fixed_font(const fixed_font &other, + converter_t *conversion = &default_conversion); + + //directly calls memcpy on the images' buffers. the second argument + //does nothing except distinguish this from the other copy constructor. + fixed_font(const fixed_font &other, bool); + + //use copy constructor and move assignment instead + fixed_font &operator =(const fixed_font &other) = delete; + + ~fixed_font() = default; + + }; + +} + +#include diff --git a/libraries/daguerre/include/daguerre/framebuffer.hpp b/libraries/daguerre/include/daguerre/framebuffer.hpp new file mode 100644 index 0000000..c9a5226 --- /dev/null +++ b/libraries/daguerre/include/daguerre/framebuffer.hpp @@ -0,0 +1,9 @@ +#pragma once + +#include + +namespace daguerre { + + image get_hilbert_framebuffer(); + +} diff --git a/libraries/daguerre/include/daguerre/general.hpp b/libraries/daguerre/include/daguerre/general.hpp new file mode 100644 index 0000000..78c6919 --- /dev/null +++ b/libraries/daguerre/include/daguerre/general.hpp @@ -0,0 +1,59 @@ +#pragma once + +#include +#include + +namespace daguerre { + + typedef euler::syscall::encoded_color hilbert_color; + + struct rgb24 { + uint8_t r; + uint8_t g; + uint8_t b; + }; + + template + using converter_t = void (dest_t &, const src_t &); + + //copies src to dest + template + static inline void default_conversion(color_t &dest, const color_t &src) { + dest = src; + } + + //encodes src and copies that to dest + static inline void default_conversion(hilbert_color &dest, const rgb24 &src) { + dest = euler::syscall::encode_color(src.r, src.g, src.b); + } + + template + using param_converter_t = void (dest_t &, const src_t &, const param_t &); + + //if src is true, copies param to dest. + //if src is false, does nothing. + template + static inline void default_conversion( + color_t &dest, const bool &src, const color_t ¶m) { + if (src) + dest = param; + } + + //intersects [to, to + length) with [min, max) at stores the result in + //[to, to + length). if anything was removed from either end, the same + //amount is removed from the same end(s) of [from, from + length) + static inline void make_safe( + int &to, int &from, int &length, int min, int max) { + + if (to < min) { + from += min - to; + length -= min - to; + to = min; + } + + if (to + length > max) + length = max - to; + + } + +} diff --git a/libraries/daguerre/include/daguerre/image.hpp b/libraries/daguerre/include/daguerre/image.hpp new file mode 100644 index 0000000..4c44dd0 --- /dev/null +++ b/libraries/daguerre/include/daguerre/image.hpp @@ -0,0 +1,118 @@ +#pragma once + +#include + +namespace daguerre { + + //forward declare since these depend on each other + template + class fixed_font; + + template + class image { + + public: + bool delete_buffer_on_destruct; + int width; + int height; + color_t *buffer; + int buffer_pitch;//in sizeof(color_t) + + //makes empty image + image(); + + //make image with specified dimensions, contents uninitialized + image(int width, int height); + + //make image with specified dimensions and buffer + image( + int width, int height, color_t *buffer, + int buffer_pitch, bool delete_buffer_on_destruct); + + //moves the other image's data here, and + //then sets the other image to an empty one. + image(image &&other); + + //moves the other image's data here, and + //then sets the other image to an empty one. + image &operator =(image &&other); + + //use one of the two constructors below instead + image(const image &other) = delete; + + //copies the other image's data here, passing it through conversion + template + image(const image &other, + converter_t *conversion = &default_conversion); + + //directly calls memcpy on the buffer. the second argument does + //nothing except distinguish this from the other copy constructor. + image(const image &other, bool); + + //use copy constructor and move assignment instead + image &operator =(const image &other) = delete; + + ~image(); + + void fill(const color_t &color); + + //does not check bounds + color_t &at(int x, int y); + + //does not check bounds + const color_t &at(int x, int y) const; + + image stretch(int new_width, int new_height); + + //copies the region here via memcpy. does not check bounds. + void copy_from( + const image &other, int to_x, int to_y, + int from_x, int from_y, int width, int height); + + //copies the entire image here via memcpy. does not check bounds. + void copy_from(const image &other, int to_x, int to_y); + + //copies the region here through conversion. does not check bounds. + template + void convert_from( + const image &other, int to_x, int to_y, + int from_x, int from_y, int width, int height, + converter_t *conversion = &default_conversion); + + //copies the entire image here through conversion. does not check bounds. + template + void convert_from( + const image &other, int to_x, int to_y, + converter_t *conversion = &default_conversion); + + //copies the region here through conversion. does not check bounds. + template + void convert_from( + const param_t ¶m, const image &other, int to_x, + int to_y, int from_x, int from_y, int width, int height, + param_converter_t *conversion = + &default_conversion); + + //copies the entire image here through conversion. does not check bounds. + template + void convert_from(const param_t ¶m, + const image &other, int to_x, int to_y, + param_converter_t *conversion = + &default_conversion); + + //does not check bounds or wrap text + template + void render_text( + const fixed_font &font, + const param_t ¶rm, int x, int y, const char *text, + param_converter_t *conversion = + &default_conversion); + + }; + + template + void swap(image &a, image &b); + +} + +#include diff --git a/libraries/daguerre/include/daguerre/impl/fixed-font.hpp b/libraries/daguerre/include/daguerre/impl/fixed-font.hpp new file mode 100644 index 0000000..dbff798 --- /dev/null +++ b/libraries/daguerre/include/daguerre/impl/fixed-font.hpp @@ -0,0 +1,59 @@ +#pragma once + +//this file should only be included from + +#include +#include + +namespace daguerre { + + template + fixed_font::fixed_font() : glyph_width(0), glyph_height(0) {} + + template + fixed_font::fixed_font(int glyph_width, int glyph_height) + : glyph_width(glyph_width), glyph_height(glyph_height) { + for (int i = 0; i < 128; ++i) + glyphs[i] = image(glyph_width, glyph_height); + } + + template + fixed_font::fixed_font(fixed_font &&other) + : glyph_width(other.glyph_width), glyph_height(other.glyph_height) { + for (int i = 0; 0 < 128; ++i) + glyphs[i] = std::move(other.glyphs[i]); + other.glyph_width = 0; + other.glyph_height = 0; + } + + template + fixed_font &fixed_font::operator =( + fixed_font &&other) { + glyph_width = other.glyph_width; + glyph_height = other.glyph_height; + for (int i = 0; 0 < 128; ++i) + glyphs[i] = std::move(other.glyphs[i]); + other.glyph_width = 0; + other.glyph_height = 0; + } + + template + template + fixed_font::fixed_font( + const fixed_font &other, + converter_t *conversion) + : glyph_width(other.glyph_width), glyph_height(other.glyph_height) { + for (int i = 0; i < 128; ++i) + glyphs[i] = image(other.glyphs[i], conversion); + } + + template + fixed_font::fixed_font(const fixed_font &other, bool) + : glyph_width(other.glyph_width), glyph_height(other.glyph_height) { + for (int i = 0; i < 128; ++i) + glyphs[i] = image(other.glyphs[i], true); + } + +} + +#include diff --git a/libraries/daguerre/include/daguerre/impl/image.hpp b/libraries/daguerre/include/daguerre/impl/image.hpp new file mode 100644 index 0000000..1264879 --- /dev/null +++ b/libraries/daguerre/include/daguerre/impl/image.hpp @@ -0,0 +1,217 @@ +#pragma once + +//this file should only be included from + +#include +#include +#include + +namespace daguerre { + + template + image::image() + : delete_buffer_on_destruct(false), width(0), + height(0), buffer(0), buffer_pitch(0) {} + + template + image::image(int width, int height) + : delete_buffer_on_destruct(true), width(width), height(height), + buffer(new color_t[width * height]), buffer_pitch(width) {} + + template + image::image( + int width, int height, color_t *buffer, + int buffer_pitch, bool delete_buffer_on_destruct) + : delete_buffer_on_destruct(delete_buffer_on_destruct), width(width), + height(height), buffer(buffer), buffer_pitch(buffer_pitch) {} + + template + image::image(image &&other) + : delete_buffer_on_destruct(other.delete_buffer_on_destruct), + width(other.width), height(other.height), buffer(other.buffer), + buffer_pitch(other.buffer_pitch) { + + other.width = 0; + other.height = 0; + other.buffer = 0; + + } + + template + image &image::operator =(image &&other) { + + if (delete_buffer_on_destruct && buffer) + delete[] buffer; + + delete_buffer_on_destruct = other.delete_buffer_on_destruct; + width = other.width; + height = other.height; + buffer = other.buffer; + buffer_pitch = other.buffer_pitch; + + other.width = 0; + other.height = 0; + other.buffer = 0; + + return *this; + + } + + template + template + image::image(const image &other, + converter_t *conversion) + : delete_buffer_on_destruct(true), width(other.width), + height(other.height), buffer(new color_t[other.width * other.height]), + buffer_pitch(other.width) { + + for (int y = 0; y < height; ++y) + for (int x = 0; x < width; ++x) + conversion( + buffer[y * buffer_pitch + x], + other.buffer[y * other.buffer_pitch + x]); + + } + + template + image::image(const image &other, bool) + : delete_buffer_on_destruct(true), width(width), height(other.height), + buffer(new color_t[other.width * other.height]), + buffer_pitch(other.width) { + + if (buffer_pitch == other.buffer_pitch) + memcpy(buffer, other.buffer, (height - 1) * buffer_pitch + width); + + else + for (int y = 0; y < height; ++y) + memcpy(buffer + y * buffer_pitch, + other.buffer + y * other.buffer_pitch, + sizeof(color_t) * width); + + } + + template + image::~image() { + if (delete_buffer_on_destruct && buffer) + delete[] buffer; + } + + template + void image::fill(const color_t &color) { + for (int y = 0; y < height; ++y) + for (int x = 0; x < width; ++x) + buffer[y * buffer_pitch + x] = color; + } + + template + color_t &image::at(int x, int y) { + return buffer[y * buffer_pitch + x]; + } + + template + const color_t &image::at(int x, int y) const { + return buffer[y * buffer_pitch + x]; + } + + template + image image::stretch(int new_width, int new_height) { + image im(new_width, new_height); + for (int y = 0; y < new_height; ++y) + for (int x = 0; x < new_width; ++x) + im.at(x, y) = at(x * width / new_width, y * height / new_height); + return im; + } + + template + void image::copy_from( + const image &other, int to_x, int to_y, + int from_x, int from_y, int width, int height) { + + color_t *to = buffer + to_y * buffer_pitch + to_x; + const color_t *from = other.buffer + from_y * other.buffer_pitch + from_x; + + for (int y = 0; y < height; ++y) + memcpy( + to + y * buffer_pitch, + from + y * other.buffer_pitch, + width * sizeof(color_t)); + + } + + template + void image::copy_from( + const image &other, int to_x, int to_y) { + copy_from(other, to_x, to_y, 0, 0, other.width, other.height); + } + + template + template + void image::convert_from( + const image &other, int to_x, int to_y, + int from_x, int from_y, int width, int height, + converter_t *conversion) { + + for (int y = 0; y < height; ++y) + for (int x = 0; x < width; ++x) + conversion(at(to_x + x, to_y + y), other.at(from_x + x, from_y + y)); + + } + + template + template + void image::convert_from( + const image &other, int to_x, int to_y, + converter_t *conversion) { + convert_from(other, to_x, to_y, 0, 0, other.width, other.y, conversion); + } + + template + template + void image::convert_from( + const param_t ¶m, const image &other, int to_x, + int to_y, int from_x, int from_y, int width, int height, + param_converter_t *conversion) { + + for (int y = 0; y < height; ++y) + for (int x = 0; x < width; ++x) + conversion( + at(to_x + x, to_y + y), other.at(from_x + x, from_y + y), param); + + } + + template + template + void image::convert_from( + const param_t ¶m, const image &other, int to_x, + int to_y, param_converter_t *conversion) { + convert_from( + param, other, to_x, to_y, 0, 0, other.width, other.y, conversion); + } + + template + template + void image::render_text( + const fixed_font &font, + const param_t ¶m, int x, int y, const char *text, + param_converter_t *conversion) { + + while (*text) { + int ch = *text; + if (ch >= 0 && ch < 128) + convert_from(param, font.glyphs[ch], x, y, conversion); + ++text; + x += font.glyph_width; + } + + } + + template + void swap(image &a, image &b) { + std::swap(a.delete_buffer_on_destruct, b.delete_buffer_on_destruct); + std::swap(a.width, b.width); + std::swap(a.height, b.height); + std::swap(a.buffer, b.buffer); + std::swap(a.buffer_pitch, b.buffer_pitch); + } + +} diff --git a/libraries/daguerre/include/daguerre/ppm.hpp b/libraries/daguerre/include/daguerre/ppm.hpp new file mode 100644 index 0000000..5249c98 --- /dev/null +++ b/libraries/daguerre/include/daguerre/ppm.hpp @@ -0,0 +1,20 @@ +#pragma once + +#include +#include +#include + +namespace daguerre { + + std::optional> try_load_ppm(FILE *input); + + static inline std::optional> try_load_ppm(const char *path) { + FILE *f = fopen(path, "r"); + if (!f) + return {}; + auto result = try_load_ppm(f); + fclose(f); + return result; + } + +} diff --git a/libraries/daguerre/include/daguerre/psf.hpp b/libraries/daguerre/include/daguerre/psf.hpp new file mode 100644 index 0000000..e38cdc4 --- /dev/null +++ b/libraries/daguerre/include/daguerre/psf.hpp @@ -0,0 +1,20 @@ +#pragma once + +#include +#include +#include + +namespace daguerre { + + std::optional> try_load_psf(FILE *input); + + static inline std::optional> try_load_psf(const char *path) { + FILE *f = fopen(path, "r"); + if (!f) + return {}; + auto result = try_load_psf(f); + fclose(f); + return result; + } + +} diff --git a/libraries/daguerre/makefile b/libraries/daguerre/makefile index 3505d35..f428193 100644 --- a/libraries/daguerre/makefile +++ b/libraries/daguerre/makefile @@ -1,5 +1,5 @@ SOURCES = \ - daguerre.cpp + framebuffer.cpp ppm.cpp psf.cpp build/%.cpp.o: source/%.cpp @mkdir -p $(@D) diff --git a/libraries/daguerre/source/daguerre.cpp b/libraries/daguerre/source/daguerre.cpp deleted file mode 100644 index 2f7fe4d..0000000 --- a/libraries/daguerre/source/daguerre.cpp +++ /dev/null @@ -1,110 +0,0 @@ -#include - -namespace daguerre { - - image get_hilbert_framebuffer() { - uint32_t width, height, pitch; - hilbert_color *ptr = __euler_get_framebuffer(width, height, pitch); - return image(ptr, width, height, pitch, false); - } - - //TODO: make this more robust - unsigned read_text_int(std::FILE *input) { - unsigned n = 0; - char ch; - std::fread(&ch, 1, 1, input); - if (ch == '#') { - do - std::fread(&ch, 1, 1, input); - while (ch != '\n'); - std::fread(&ch, 1, 1, input); - } - do { - n = n * 10 + ch - '0'; - std::fread(&ch, 1, 1, input); - } while (ch >= '0' && ch <= '9'); - return n; - } - - //only supports p6 format - bool try_load_ppm(std::FILE *input, image &into) { - - char header[3]; - if (std::fread(header, 1, 3, input) != 3) - return false; - - if (header[0] != 'P' || header[1] != '6' || header[2] != '\n') - return false; - - unsigned width = read_text_int(input); - unsigned height = read_text_int(input); - unsigned max = read_text_int(input); - - into = image(width, height); - - for (unsigned y = 0; y < height; ++y) - for (unsigned x = 0; x < width; ++x) { - if (std::fread(&into.buffer[y * width + x].r, 1, 1, input) != 1) - return false; - if (std::fread(&into.buffer[y * width + x].g, 1, 1, input) != 1) - return false; - if (std::fread(&into.buffer[y * width + x].b, 1, 1, input) != 1) - return false; - } - - if (max != 255) - for (unsigned v = 0; v < width * height; ++v) { - into.buffer[v].r = ((uint16_t)into.buffer[v].r * 255) / max; - into.buffer[v].g = ((uint16_t)into.buffer[v].g * 255) / max; - into.buffer[v].b = ((uint16_t)into.buffer[v].b * 255) / max; - } - - return true; - - } - - //assumes the font is in psf2 format, and has a unicode table - bool try_load_psf(std::FILE *input, fixed_bitmap_font &into) { - - uint32_t header[8]; - if (std::fread(header, 4, 8, input) != 8) - return false; - - const uint32_t glyphs_start = header[2]; - const uint32_t glyph_count = header[4]; - const uint32_t glyph_length = header[5]; - into.height = header[6]; - into.width = header[7]; - - const uint32_t unicode_start = glyphs_start + glyph_count * glyph_length; - std::fseek(input, unicode_start, SEEK_SET); - - uint32_t indices[128]; - - for (uint32_t index = 0; index < glyph_count; ++index) { - uint8_t ch; - std::fread(&ch, 1, 1, input); - if (ch < 128) - indices[ch] = index; - do - std::fread(&ch, 1, 1, input); - while (ch != 0xff); - } - - for (uint8_t ch = 0; ch < 128; ++ch) { - std::fseek(input, glyphs_start + glyph_length * indices[ch], SEEK_SET); - into.glyphs[ch] = image(into.width, into.height); - for (unsigned h = 0; h < into.height; ++h) - for (unsigned wb = 0; wb < into.width; wb += 8) { - uint8_t byte; - std::fread(&byte, 1, 1, input); - for (unsigned x = 0; x < 8 && wb + x < into.width; ++x) - into.glyphs[ch].set(wb + x, h, (byte >> (7 - x)) & 1); - } - } - - return true; - - } - -} diff --git a/libraries/daguerre/source/framebuffer.cpp b/libraries/daguerre/source/framebuffer.cpp new file mode 100644 index 0000000..d4282ad --- /dev/null +++ b/libraries/daguerre/source/framebuffer.cpp @@ -0,0 +1,12 @@ +#include + +namespace daguerre { + + image get_hilbert_framebuffer() { + hilbert_color *ptr; + uint32_t width, height, pitch; + euler::syscall::get_framebuffer(ptr, width, height, pitch); + return image(width, height, ptr, pitch, false); + } + +} diff --git a/libraries/daguerre/source/ppm.cpp b/libraries/daguerre/source/ppm.cpp new file mode 100644 index 0000000..a4a7e27 --- /dev/null +++ b/libraries/daguerre/source/ppm.cpp @@ -0,0 +1,60 @@ +#include + +namespace daguerre { + + //TODO: make this more robust + static unsigned read_text_int(FILE *input) { + unsigned n = 0; + char ch; + fread(&ch, 1, 1, input); + if (ch == '#') { + do + fread(&ch, 1, 1, input); + while (ch != '\n'); + fread(&ch, 1, 1, input); + } + do { + n = n * 10 + ch - '0'; + fread(&ch, 1, 1, input); + } while (ch >= '0' && ch <= '9'); + return n; + } + + //TODO: this only supports p6 format, and assumes max < 256 + std::optional> try_load_ppm(FILE *input) { + + char header[3]; + if (fread(header, 1, 3, input) != 3) + return {}; + + if (header[0] != 'P' || header[1] != '6' || header[2] != '\n') + return {}; + + unsigned width = read_text_int(input); + unsigned height = read_text_int(input); + unsigned max = read_text_int(input); + + image im(width, height); + + for (unsigned y = 0; y < height; ++y) + for (unsigned x = 0; x < width; ++x) { + if (fread(&im.buffer[y * width + x].r, 1, 1, input) != 1) + return {}; + if (fread(&im.buffer[y * width + x].g, 1, 1, input) != 1) + return {}; + if (fread(&im.buffer[y * width + x].b, 1, 1, input) != 1) + return {}; + } + + if (max != 255) + for (unsigned v = 0; v < width * height; ++v) { + im.buffer[v].r = ((uint16_t)im.buffer[v].r * 255) / max; + im.buffer[v].g = ((uint16_t)im.buffer[v].g * 255) / max; + im.buffer[v].b = ((uint16_t)im.buffer[v].b * 255) / max; + } + + return im; + + } + +} diff --git a/libraries/daguerre/source/psf.cpp b/libraries/daguerre/source/psf.cpp new file mode 100644 index 0000000..81f722a --- /dev/null +++ b/libraries/daguerre/source/psf.cpp @@ -0,0 +1,51 @@ +#include + +namespace daguerre { + + //TODO: this assumes the font is in psf2 format, and has a unicode table + std::optional> try_load_psf(FILE *input) { + + uint32_t header[8]; + if (fread(header, 4, 8, input) != 8) + return {}; + + const uint32_t glyphs_start = header[2]; + const uint32_t glyph_count = header[4]; + const uint32_t glyph_length = header[5]; + const uint32_t height = header[6]; + const uint32_t width = header[7]; + + fixed_font font(width, height); + + const uint32_t unicode_start = glyphs_start + glyph_count * glyph_length; + fseek(input, unicode_start, SEEK_SET); + + uint32_t indices[128]; + + for (uint32_t index = 0; index < glyph_count; ++index) { + uint8_t ch; + fread(&ch, 1, 1, input); + if (ch < 128) + indices[ch] = index; + do + if (fread(&ch, 1, 1, input) != 1) + return {}; + while (ch != 0xff); + } + + for (uint8_t ch = 0; ch < 128; ++ch) { + fseek(input, glyphs_start + glyph_length * indices[ch], SEEK_SET); + for (unsigned h = 0; h < height; ++h) + for (unsigned wb = 0; wb < width; wb += 8) { + uint8_t byte; + fread(&byte, 1, 1, input); + for (unsigned x = 0; x < 8 && wb + x < width; ++x) + font.glyphs[ch].at(wb + x, h) = (byte >> (7 - x)) & 1; + } + } + + return font; + + } + +} -- cgit v1.2.3