circuitpython/extmod/modframebuf.c at master · ProGamerCode/circuitpython · GitHub

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* This file is part of the MicroPython project, http://micropython.org/

* The MIT License (MIT)

* Permission is hereby granted, free of charge, to any person obtaining a copy

* of this software and associated documentation files (the "Software"), to deal

* in the Software without restriction, including without limitation the rights

* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell

* copies of the Software, and to permit persons to whom the Software is

* furnished to do so, subject to the following conditions:

* The above copyright notice and this permission notice shall be included in

* all copies or substantial portions of the Software.

* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR

* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE

* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER

* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,

* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN

* THE SOFTWARE.

#include <stdio.h>

#include <string.h>

#include "py/runtime.h"

#include "py/objtype.h"

#include "py/proto.h"

#if MICROPY_PY_FRAMEBUF

#include "font_petme128_8x8.h"

typedef struct _mp_obj_framebuf_t {

mp_obj_base_t base;

mp_obj_t buf_obj; // need to store this to prevent GC from reclaiming buf

void *buf;

uint16_t width, height, stride;

uint8_t format;

} mp_obj_framebuf_t;

typedef void (*setpixel_t)(const mp_obj_framebuf_t*, int, int, uint32_t);

typedef uint32_t (*getpixel_t)(const mp_obj_framebuf_t*, int, int);

typedef void (*fill_rect_t)(const mp_obj_framebuf_t *, int, int, int, int, uint32_t);

typedef struct _mp_framebuf_p_t {

MP_PROTOCOL_HEAD

setpixel_t setpixel;

getpixel_t getpixel;

fill_rect_t fill_rect;

} mp_framebuf_p_t;

// constants for formats

#define FRAMEBUF_MVLSB (0)

#define FRAMEBUF_RGB565 (1)

#define FRAMEBUF_GS2_HMSB (5)

#define FRAMEBUF_GS4_HMSB (2)

#define FRAMEBUF_GS8 (6)

#define FRAMEBUF_MHLSB (3)

#define FRAMEBUF_MHMSB (4)

// Functions for MHLSB and MHMSB

STATIC void mono_horiz_setpixel(const mp_obj_framebuf_t *fb, int x, int y, uint32_t col) {

size_t index = (x + y * fb->stride) >> 3;

int offset = fb->format == FRAMEBUF_MHMSB ? x & 0x07 : 7 - (x & 0x07);

((uint8_t*)fb->buf)[index] = (((uint8_t*)fb->buf)[index] & ~(0x01 << offset)) | ((col != 0) << offset);

}

STATIC uint32_t mono_horiz_getpixel(const mp_obj_framebuf_t *fb, int x, int y) {

size_t index = (x + y * fb->stride) >> 3;

int offset = fb->format == FRAMEBUF_MHMSB ? x & 0x07 : 7 - (x & 0x07);

return (((uint8_t*)fb->buf)[index] >> (offset)) & 0x01;

}

STATIC void mono_horiz_fill_rect(const mp_obj_framebuf_t *fb, int x, int y, int w, int h, uint32_t col) {

int reverse = fb->format == FRAMEBUF_MHMSB;

int advance = fb->stride >> 3;

while (w--) {

uint8_t *b = &((uint8_t*)fb->buf)[(x >> 3) + y * advance];

int offset = reverse ? x & 7 : 7 - (x & 7);

for (int hh = h; hh; --hh) {

*b = (*b & ~(0x01 << offset)) | ((col != 0) << offset);

b += advance;

}

++x;

}

// Functions for MVLSB format

STATIC void mvlsb_setpixel(const mp_obj_framebuf_t *fb, int x, int y, uint32_t col) {

size_t index = (y >> 3) * fb->stride + x;

uint8_t offset = y & 0x07;

((uint8_t*)fb->buf)[index] = (((uint8_t*)fb->buf)[index] & ~(0x01 << offset)) | ((col != 0) << offset);

}

STATIC uint32_t mvlsb_getpixel(const mp_obj_framebuf_t *fb, int x, int y) {

return (((uint8_t*)fb->buf)[(y >> 3) * fb->stride + x] >> (y & 0x07)) & 0x01;

}

STATIC void mvlsb_fill_rect(const mp_obj_framebuf_t *fb, int x, int y, int w, int h, uint32_t col) {

while (h--) {

uint8_t *b = &((uint8_t*)fb->buf)[(y >> 3) * fb->stride + x];

uint8_t offset = y & 0x07;

for (int ww = w; ww; --ww) {

*b = (*b & ~(0x01 << offset)) | ((col != 0) << offset);

++b;

}

++y;

}

// Functions for RGB565 format

STATIC void rgb565_setpixel(const mp_obj_framebuf_t *fb, int x, int y, uint32_t col) {

((uint16_t*)fb->buf)[x + y * fb->stride] = col;

}

STATIC uint32_t rgb565_getpixel(const mp_obj_framebuf_t *fb, int x, int y) {

return ((uint16_t*)fb->buf)[x + y * fb->stride];

}

STATIC void rgb565_fill_rect(const mp_obj_framebuf_t *fb, int x, int y, int w, int h, uint32_t col) {

uint16_t *b = &((uint16_t*)fb->buf)[x + y * fb->stride];

while (h--) {

for (int ww = w; ww; --ww) {

*b++ = col;

}

b += fb->stride - w;

}

// Functions for GS2_HMSB format

STATIC void gs2_hmsb_setpixel(const mp_obj_framebuf_t *fb, int x, int y, uint32_t col) {

uint8_t *pixel = &((uint8_t*)fb->buf)[(x + y * fb->stride) >> 2];

uint8_t shift = (x & 0x3) << 1;

uint8_t mask = 0x3 << shift;

uint8_t color = (col & 0x3) << shift;

*pixel = color | (*pixel & (~mask));

}

STATIC uint32_t gs2_hmsb_getpixel(const mp_obj_framebuf_t *fb, int x, int y) {

uint8_t pixel = ((uint8_t*)fb->buf)[(x + y * fb->stride) >> 2];

uint8_t shift = (x & 0x3) << 1;

return (pixel >> shift) & 0x3;

}

STATIC void gs2_hmsb_fill_rect(const mp_obj_framebuf_t *fb, int x, int y, int w, int h, uint32_t col) {

for (int xx=x; xx < x+w; xx++) {

for (int yy=y; yy < y+h; yy++) {

gs2_hmsb_setpixel(fb, xx, yy, col);

}

// Functions for GS4_HMSB format

STATIC void gs4_hmsb_setpixel(const mp_obj_framebuf_t *fb, int x, int y, uint32_t col) {

uint8_t *pixel = &((uint8_t*)fb->buf)[(x + y * fb->stride) >> 1];

if (x % 2) {

*pixel = ((uint8_t)col & 0x0f) | (*pixel & 0xf0);

} else {

*pixel = ((uint8_t)col << 4) | (*pixel & 0x0f);

}

STATIC uint32_t gs4_hmsb_getpixel(const mp_obj_framebuf_t *fb, int x, int y) {

if (x % 2) {

return ((uint8_t*)fb->buf)[(x + y * fb->stride) >> 1] & 0x0f;

}

return ((uint8_t*)fb->buf)[(x + y * fb->stride) >> 1] >> 4;

}

STATIC void gs4_hmsb_fill_rect(const mp_obj_framebuf_t *fb, int x, int y, int w, int h, uint32_t col) {

col &= 0x0f;

uint8_t *pixel_pair = &((uint8_t*)fb->buf)[(x + y * fb->stride) >> 1];

uint8_t col_shifted_left = col << 4;

uint8_t col_pixel_pair = col_shifted_left | col;

int pixel_count_till_next_line = (fb->stride - w) >> 1;

bool odd_x = (x % 2 == 1);

while (h--) {

int ww = w;

if (odd_x && ww > 0) {

*pixel_pair = (*pixel_pair & 0xf0) | col;

pixel_pair++;

ww--;

}

memset(pixel_pair, col_pixel_pair, ww >> 1);

pixel_pair += ww >> 1;

if (ww % 2) {

*pixel_pair = col_shifted_left | (*pixel_pair & 0x0f);

if (!odd_x) {

pixel_pair++;

}

pixel_pair += pixel_count_till_next_line;

}

// Functions for GS8 format

STATIC void gs8_setpixel(const mp_obj_framebuf_t *fb, int x, int y, uint32_t col) {

uint8_t *pixel = &((uint8_t*)fb->buf)[(x + y * fb->stride)];

*pixel = col & 0xff;

}

STATIC uint32_t gs8_getpixel(const mp_obj_framebuf_t *fb, int x, int y) {

return ((uint8_t*)fb->buf)[(x + y * fb->stride)];

}

STATIC void gs8_fill_rect(const mp_obj_framebuf_t *fb, int x, int y, int w, int h, uint32_t col) {

uint8_t *pixel = &((uint8_t*)fb->buf)[(x + y * fb->stride)];

while (h--) {

memset(pixel, col, w);

pixel += fb->stride;

}

STATIC mp_framebuf_p_t formats[] = {

[FRAMEBUF_MVLSB] = {MP_PROTO_IMPLEMENT(MP_QSTR_protocol_framebuf) mvlsb_setpixel, mvlsb_getpixel, mvlsb_fill_rect},

[FRAMEBUF_RGB565] = {MP_PROTO_IMPLEMENT(MP_QSTR_protocol_framebuf) rgb565_setpixel, rgb565_getpixel, rgb565_fill_rect},

[FRAMEBUF_GS2_HMSB] = {MP_PROTO_IMPLEMENT(MP_QSTR_protocol_framebuf) gs2_hmsb_setpixel, gs2_hmsb_getpixel, gs2_hmsb_fill_rect},

[FRAMEBUF_GS4_HMSB] = {MP_PROTO_IMPLEMENT(MP_QSTR_protocol_framebuf) gs4_hmsb_setpixel, gs4_hmsb_getpixel, gs4_hmsb_fill_rect},

[FRAMEBUF_GS8] = {MP_PROTO_IMPLEMENT(MP_QSTR_protocol_framebuf) gs8_setpixel, gs8_getpixel, gs8_fill_rect},

[FRAMEBUF_MHLSB] = {MP_PROTO_IMPLEMENT(MP_QSTR_protocol_framebuf) mono_horiz_setpixel, mono_horiz_getpixel, mono_horiz_fill_rect},

[FRAMEBUF_MHMSB] = {MP_PROTO_IMPLEMENT(MP_QSTR_protocol_framebuf) mono_horiz_setpixel, mono_horiz_getpixel, mono_horiz_fill_rect},

};

static inline void setpixel(const mp_obj_framebuf_t *fb, int x, int y, uint32_t col) {

formats[fb->format].setpixel(fb, x, y, col);

}

static inline uint32_t getpixel(const mp_obj_framebuf_t *fb, int x, int y) {

return formats[fb->format].getpixel(fb, x, y);

}

STATIC void fill_rect(const mp_obj_framebuf_t *fb, int x, int y, int w, int h, uint32_t col) {

if (h < 1 || w < 1 || x + w <= 0 || y + h <= 0 || y >= fb->height || x >= fb->width) {

// No operation needed.

return;

}

// clip to the framebuffer

int xend = MIN(fb->width, x + w);

int yend = MIN(fb->height, y + h);

x = MAX(x, 0);

y = MAX(y, 0);

formats[fb->format].fill_rect(fb, x, y, xend - x, yend - y, col);

}

STATIC mp_obj_t framebuf_make_new(const mp_obj_type_t *type, size_t n_args, const mp_obj_t *args, mp_map_t *kw_args) {

mp_arg_check_num(n_args, kw_args, 4, 5, false);

mp_obj_framebuf_t *o = m_new_obj(mp_obj_framebuf_t);

o->base.type = type;

o->buf_obj = args[0];

mp_buffer_info_t bufinfo;

mp_get_buffer_raise(args[0], &bufinfo, MP_BUFFER_WRITE);

o->buf = bufinfo.buf;

o->width = mp_obj_get_int(args[1]);

o->height = mp_obj_get_int(args[2]);

o->format = mp_obj_get_int(args[3]);

if (n_args >= 5) {

o->stride = mp_obj_get_int(args[4]);

} else {

o->stride = o->width;

}

switch (o->format) {

case FRAMEBUF_MVLSB:

case FRAMEBUF_RGB565:

break;

case FRAMEBUF_MHLSB:

case FRAMEBUF_MHMSB:

o->stride = (o->stride + 7) & ~7;

break;

case FRAMEBUF_GS2_HMSB:

o->stride = (o->stride + 3) & ~3;

break;

case FRAMEBUF_GS4_HMSB:

o->stride = (o->stride + 1) & ~1;

break;

case FRAMEBUF_GS8:

break;

default:

mp_raise_ValueError(translate("invalid format"));

}

return MP_OBJ_FROM_PTR(o);

}

STATIC const mp_obj_type_t mp_type_framebuf;

// Helper to ensure we have the native super class instead of a subclass.

static mp_obj_framebuf_t* native_framebuf(mp_obj_t framebuf_obj) {

mp_obj_t native_framebuf = mp_instance_cast_to_native_base(framebuf_obj, &mp_type_framebuf);

mp_obj_assert_native_inited(native_framebuf);

return MP_OBJ_TO_PTR(native_framebuf);

}

STATIC mp_int_t framebuf_get_buffer(mp_obj_t self_in, mp_buffer_info_t *bufinfo, mp_uint_t flags) {

(void)flags;

mp_obj_framebuf_t *self = native_framebuf(self_in);

bufinfo->buf = self->buf;

bufinfo->len = self->stride * self->height * (self->format == FRAMEBUF_RGB565 ? 2 : 1);

bufinfo->typecode = 'B'; // view framebuf as bytes

return 0;

}

STATIC mp_obj_t framebuf_fill(mp_obj_t self_in, mp_obj_t col_in) {

mp_obj_framebuf_t *self = native_framebuf(self_in);

mp_int_t col = mp_obj_get_int(col_in);

formats[self->format].fill_rect(self, 0, 0, self->width, self->height, col);

return mp_const_none;

}

STATIC MP_DEFINE_CONST_FUN_OBJ_2(framebuf_fill_obj, framebuf_fill);

STATIC mp_obj_t framebuf_fill_rect(size_t n_args, const mp_obj_t *args) {

(void)n_args;

mp_obj_framebuf_t *self = native_framebuf(args[0]);

mp_int_t x = mp_obj_get_int(args[1]);

mp_int_t y = mp_obj_get_int(args[2]);

mp_int_t width = mp_obj_get_int(args[3]);

mp_int_t height = mp_obj_get_int(args[4]);

mp_int_t col = mp_obj_get_int(args[5]);

fill_rect(self, x, y, width, height, col);

return mp_const_none;

}

STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(framebuf_fill_rect_obj, 6, 6, framebuf_fill_rect);

STATIC mp_obj_t framebuf_pixel(size_t n_args, const mp_obj_t *args) {

mp_obj_framebuf_t *self = native_framebuf(args[0]);

mp_int_t x = mp_obj_get_int(args[1]);

mp_int_t y = mp_obj_get_int(args[2]);

if (0 <= x && x < self->width && 0 <= y && y < self->height) {

if (n_args == 3) {

// get

return MP_OBJ_NEW_SMALL_INT(getpixel(self, x, y));

} else {

// set

setpixel(self, x, y, mp_obj_get_int(args[3]));

}

return mp_const_none;

}

STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(framebuf_pixel_obj, 3, 4, framebuf_pixel);

STATIC mp_obj_t framebuf_hline(size_t n_args, const mp_obj_t *args) {

(void)n_args;

mp_obj_framebuf_t *self = native_framebuf(args[0]);

mp_int_t x = mp_obj_get_int(args[1]);

mp_int_t y = mp_obj_get_int(args[2]);

mp_int_t w = mp_obj_get_int(args[3]);

mp_int_t col = mp_obj_get_int(args[4]);

fill_rect(self, x, y, w, 1, col);

return mp_const_none;

}

STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(framebuf_hline_obj, 5, 5, framebuf_hline);

STATIC mp_obj_t framebuf_vline(size_t n_args, const mp_obj_t *args) {

(void)n_args;

mp_obj_framebuf_t *self = native_framebuf(args[0]);

mp_int_t x = mp_obj_get_int(args[1]);

mp_int_t y = mp_obj_get_int(args[2]);

mp_int_t h = mp_obj_get_int(args[3]);

mp_int_t col = mp_obj_get_int(args[4]);

fill_rect(self, x, y, 1, h, col);

return mp_const_none;

}

STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(framebuf_vline_obj, 5, 5, framebuf_vline);

STATIC mp_obj_t framebuf_rect(size_t n_args, const mp_obj_t *args) {

(void)n_args;

mp_obj_framebuf_t *self = native_framebuf(args[0]);

mp_int_t x = mp_obj_get_int(args[1]);

mp_int_t y = mp_obj_get_int(args[2]);

mp_int_t w = mp_obj_get_int(args[3]);

mp_int_t h = mp_obj_get_int(args[4]);

mp_int_t col = mp_obj_get_int(args[5]);

fill_rect(self, x, y, w, 1, col);

fill_rect(self, x, y + h- 1, w, 1, col);

fill_rect(self, x, y, 1, h, col);

fill_rect(self, x + w- 1, y, 1, h, col);

return mp_const_none;

}

STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(framebuf_rect_obj, 6, 6, framebuf_rect);

STATIC mp_obj_t framebuf_line(size_t n_args, const mp_obj_t *args) {

(void)n_args;

mp_obj_framebuf_t *self = native_framebuf(args[0]);

mp_int_t x1 = mp_obj_get_int(args[1]);

mp_int_t y1 = mp_obj_get_int(args[2]);

mp_int_t x2 = mp_obj_get_int(args[3]);

mp_int_t y2 = mp_obj_get_int(args[4]);

mp_int_t col = mp_obj_get_int(args[5]);

mp_int_t dx = x2 - x1;

mp_int_t sx;

if (dx > 0) {

sx = 1;

} else {

dx = -dx;

sx = -1;

}

mp_int_t dy = y2 - y1;

mp_int_t sy;

if (dy > 0) {

sy = 1;

} else {

dy = -dy;

sy = -1;

}

bool steep;

if (dy > dx) {

mp_int_t temp;

temp = x1; x1 = y1; y1 = temp;

temp = dx; dx = dy; dy = temp;

temp = sx; sx = sy; sy = temp;

steep = true;

} else {

steep = false;

}

mp_int_t e = 2 * dy - dx;

for (mp_int_t i = 0; i < dx; ++i) {

if (steep) {

if (0 <= y1 && y1 < self->width && 0 <= x1 && x1 < self->height) {

setpixel(self, y1, x1, col);

}

} else {

if (0 <= x1 && x1 < self->width && 0 <= y1 && y1 < self->height) {

setpixel(self, x1, y1, col);

}

while (e >= 0) {

y1 += sy;

e -= 2 * dx;

}

x1 += sx;

e += 2 * dy;

}

if (0 <= x2 && x2 < self->width && 0 <= y2 && y2 < self->height) {

setpixel(self, x2, y2, col);

}

return mp_const_none;

}

STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(framebuf_line_obj, 6, 6, framebuf_line);

STATIC mp_obj_t framebuf_blit(size_t n_args, const mp_obj_t *args) {

mp_obj_framebuf_t *self = native_framebuf(args[0]);

mp_obj_framebuf_t *source = native_framebuf(args[1]);

mp_int_t x = mp_obj_get_int(args[2]);

mp_int_t y = mp_obj_get_int(args[3]);

mp_int_t key = -1;

if (n_args > 4) {

key = mp_obj_get_int(args[4]);

}

if (

(x >= self->width) ||

(y >= self->height) ||

(-x >= source->width) ||

(-y >= source->height)

) {

// Out of bounds, no-op.

return mp_const_none;

}

// Clip.

int x0 = MAX(0, x);

int y0 = MAX(0, y);

int x1 = MAX(0, -x);

int y1 = MAX(0, -y);

int x0end = MIN(self->width, x + source->width);

int y0end = MIN(self->height, y + source->height);

for (; y0 < y0end; ++y0) {

int cx1 = x1;

for (int cx0 = x0; cx0 < x0end; ++cx0) {

uint32_t col = getpixel(source, cx1, y1);

if (col != (uint32_t)key) {

setpixel(self, cx0, y0, col);

}

++cx1;

}

++y1;

}

return mp_const_none;

}

STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(framebuf_blit_obj, 4, 5, framebuf_blit);

STATIC mp_obj_t framebuf_scroll(mp_obj_t self_in, mp_obj_t xstep_in, mp_obj_t ystep_in) {

mp_obj_framebuf_t *self = native_framebuf(self_in);

mp_int_t xstep = mp_obj_get_int(xstep_in);

mp_int_t ystep = mp_obj_get_int(ystep_in);

int sx, y, xend, yend, dx, dy;

if (xstep < 0) {

sx = 0;

xend = self->width + xstep;

dx = 1;

} else {

sx = self->width - 1;

xend = xstep - 1;

dx = -1;

}

if (ystep < 0) {

y = 0;

yend = self->height + ystep;

dy = 1;

} else {

y = self->height - 1;

yend = ystep - 1;

dy = -1;

}

for (; y != yend; y += dy) {

for (int x = sx; x != xend; x += dx) {

setpixel(self, x, y, getpixel(self, x - xstep, y - ystep));

}

return mp_const_none;

}

STATIC MP_DEFINE_CONST_FUN_OBJ_3(framebuf_scroll_obj, framebuf_scroll);

STATIC mp_obj_t framebuf_text(size_t n_args, const mp_obj_t *args) {

// extract arguments

mp_obj_framebuf_t *self = native_framebuf(args[0]);

const char *str = mp_obj_str_get_str(args[1]);

mp_int_t x0 = mp_obj_get_int(args[2]);

mp_int_t y0 = mp_obj_get_int(args[3]);

mp_int_t col = 1;

if (n_args >= 5) {

col = mp_obj_get_int(args[4]);

}

// loop over chars

for (; *str; ++str) {

// get char and make sure its in range of font

int chr = *(uint8_t*)str;

if (chr < 32 || chr > 127) {

chr = 127;

}

// get char data

const uint8_t *chr_data = &font_petme128_8x8[(chr - 32) * 8];

// loop over char data

for (int j = 0; j < 8; j++, x0++) {

if (0 <= x0 && x0 < self->width) { // clip x

uint vline_data = chr_data[j]; // each byte is a column of 8 pixels, LSB at top

for (int y = y0; vline_data; vline_data >>= 1, y++) { // scan over vertical column

if (vline_data & 1) { // only draw if pixel set

if (0 <= y && y < self->height) { // clip y

setpixel(self, x0, y, col);

}

return mp_const_none;

}

STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(framebuf_text_obj, 4, 5, framebuf_text);

STATIC const mp_rom_map_elem_t framebuf_locals_dict_table[] = {

{ MP_ROM_QSTR(MP_QSTR_fill), MP_ROM_PTR(&framebuf_fill_obj) },

{ MP_ROM_QSTR(MP_QSTR_fill_rect), MP_ROM_PTR(&framebuf_fill_rect_obj) },

{ MP_ROM_QSTR(MP_QSTR_pixel), MP_ROM_PTR(&framebuf_pixel_obj) },

{ MP_ROM_QSTR(MP_QSTR_hline), MP_ROM_PTR(&framebuf_hline_obj) },

{ MP_ROM_QSTR(MP_QSTR_vline), MP_ROM_PTR(&framebuf_vline_obj) },

{ MP_ROM_QSTR(MP_QSTR_rect), MP_ROM_PTR(&framebuf_rect_obj) },

{ MP_ROM_QSTR(MP_QSTR_line), MP_ROM_PTR(&framebuf_line_obj) },

{ MP_ROM_QSTR(MP_QSTR_blit), MP_ROM_PTR(&framebuf_blit_obj) },

{ MP_ROM_QSTR(MP_QSTR_scroll), MP_ROM_PTR(&framebuf_scroll_obj) },

{ MP_ROM_QSTR(MP_QSTR_text), MP_ROM_PTR(&framebuf_text_obj) },

};

STATIC MP_DEFINE_CONST_DICT(framebuf_locals_dict, framebuf_locals_dict_table);

STATIC const mp_obj_type_t mp_type_framebuf = {

{ &mp_type_type },

.name = MP_QSTR_FrameBuffer,

.make_new = framebuf_make_new,

.buffer_p = { .get_buffer = framebuf_get_buffer },

.locals_dict = (mp_obj_dict_t*)&framebuf_locals_dict,

};

// this factory function is provided for backwards compatibility with old FrameBuffer1 class

STATIC mp_obj_t legacy_framebuffer1(size_t n_args, const mp_obj_t *args) {

mp_obj_framebuf_t *o = m_new_obj(mp_obj_framebuf_t);

o->base.type = &mp_type_framebuf;

mp_buffer_info_t bufinfo;

mp_get_buffer_raise(args[0], &bufinfo, MP_BUFFER_WRITE);

o->buf = bufinfo.buf;

o->width = mp_obj_get_int(args[1]);

o->height = mp_obj_get_int(args[2]);

o->format = FRAMEBUF_MVLSB;

if (n_args >= 4) {

o->stride = mp_obj_get_int(args[3]);

} else {

o->stride = o->width;

}

return MP_OBJ_FROM_PTR(o);

}

STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(legacy_framebuffer1_obj, 3, 4, legacy_framebuffer1);

STATIC const mp_rom_map_elem_t framebuf_module_globals_table[] = {

{ MP_ROM_QSTR(MP_QSTR___name__), MP_ROM_QSTR(MP_QSTR_framebuf) },

{ MP_ROM_QSTR(MP_QSTR_FrameBuffer), MP_ROM_PTR(&mp_type_framebuf) },

{ MP_ROM_QSTR(MP_QSTR_FrameBuffer1), MP_ROM_PTR(&legacy_framebuffer1_obj) },

{ MP_ROM_QSTR(MP_QSTR_MVLSB), MP_ROM_INT(FRAMEBUF_MVLSB) },

{ MP_ROM_QSTR(MP_QSTR_MONO_VLSB), MP_ROM_INT(FRAMEBUF_MVLSB) },

{ MP_ROM_QSTR(MP_QSTR_RGB565), MP_ROM_INT(FRAMEBUF_RGB565) },

{ MP_ROM_QSTR(MP_QSTR_GS2_HMSB), MP_ROM_INT(FRAMEBUF_GS2_HMSB) },

{ MP_ROM_QSTR(MP_QSTR_GS4_HMSB), MP_ROM_INT(FRAMEBUF_GS4_HMSB) },

{ MP_ROM_QSTR(MP_QSTR_GS8), MP_ROM_INT(FRAMEBUF_GS8) },

{ MP_ROM_QSTR(MP_QSTR_MONO_HLSB), MP_ROM_INT(FRAMEBUF_MHLSB) },

{ MP_ROM_QSTR(MP_QSTR_MONO_HMSB), MP_ROM_INT(FRAMEBUF_MHMSB) },

};

STATIC MP_DEFINE_CONST_DICT(framebuf_module_globals, framebuf_module_globals_table);

const mp_obj_module_t mp_module_framebuf = {

.base = { &mp_type_module },

.globals = (mp_obj_dict_t*)&framebuf_module_globals,

};

#endif // MICROPY_PY_FRAMEBUF

circuitpython/extmod/modframebuf.c at master · ProGamerCode/circuitpython · GitHub

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