forked from legimet/duktape-nspire
/
nsp_texture.c
521 lines (427 loc) · 14.1 KB
/
nsp_texture.c
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// Texture module
// Copyright (C) 2015 Legimet + fgalliat (Xtase)
//
// This file is part of Duktape-nspire.
//
// Duktape-nspire is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// Duktape-nspire is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with Duktape-nspire. If not, see <http://www.gnu.org/licenses/>.
#include "duktape.h"
#include <limits.h>
#include <stdbool.h>
#include <libndls.h>
// =================================================
#include "framebuffer.h"
// =================================================
static duk_ret_t nsp_texture_constructor(duk_context *ctx) {
int width = duk_require_int(ctx, 0);
int height = duk_require_int(ctx, 1);
if (width < 1 || height < 1) {
duk_push_error_object(ctx, DUK_ERR_RANGE_ERROR, "Width and height must be positive");
duk_throw(ctx);
}
bool has_transparency;
uint16_t transparent_color;
if ((has_transparency = duk_is_number(ctx, 2))) {
transparent_color = (uint16_t)duk_get_int(ctx, 2);
}
duk_push_this(ctx);
duk_push_fixed_buffer(ctx, width * height * 2);
duk_put_prop_string(ctx, -2, "bitmap");
duk_push_int(ctx, width);
duk_put_prop_string(ctx, -2, "width");
duk_push_int(ctx, height);
duk_put_prop_string(ctx, -2, "height");
if (has_transparency) {
duk_push_int(ctx, transparent_color);
} else {
duk_push_null(ctx);
}
duk_put_prop_string(ctx, -2, "transparentColor");
return 0;
}
duk_ret_t nsp_texture_display(duk_context *ctx) {
duk_push_this(ctx);
duk_get_prop_string(ctx, -1, "width");
int width = duk_get_int(ctx, -1);
duk_pop(ctx);
duk_get_prop_string(ctx, -1, "height");
int height = duk_get_int(ctx, -1);
duk_pop(ctx);
duk_get_prop_string(ctx, -1, "transparentColor");
if (width != 320 || height != 240 || !duk_is_null(ctx, -1)) {
duk_push_error_object(ctx, DUK_ERR_RANGE_ERROR, "must have dimensions 230x240 without transparency");
duk_throw(ctx);
}
duk_pop(ctx);
duk_get_prop_string(ctx, -1, "bitmap");
size_t size;
uint16_t *bitmap;
bitmap = duk_get_buffer(ctx, -1, &size);
if (bitmap == NULL || size != 320 * 240 * 2) {
duk_push_error_object(ctx, DUK_ERR_ERROR, "bitmap buffer does not match with dimensions");
duk_throw(ctx);
}
memcpy(SCREEN_BASE_ADDRESS, bitmap, 320 * 240 * 2);
return 0;
}
duk_ret_t nsp_texture_fill(duk_context *ctx) {
uint16_t color = duk_require_int(ctx, 0);
duk_push_this(ctx);
duk_get_prop_string(ctx, -1, "bitmap");
size_t size;
uint16_t *bitmap = duk_get_buffer(ctx, -1, &size);
if (bitmap == NULL) {
duk_push_error_object(ctx, DUK_ERR_ERROR, "bitmap pointer is NULL");
duk_throw(ctx);
}
for (size_t i = 0; i < size / 2; i++) {
bitmap[i] = (uint16_t)color;
}
return 0;
}
duk_ret_t nsp_texture_get_pixel(duk_context *ctx) {
int x = duk_require_int(ctx, 0);
int y = duk_require_int(ctx, 1);
duk_push_this(ctx);
duk_get_prop_string(ctx, -1, "width");
int w = duk_require_int(ctx, -1);
duk_pop(ctx);
duk_get_prop_string(ctx, -1, "height");
int h = duk_require_int(ctx, -1);
duk_pop(ctx);
if (w <= 0 || h <= 0) {
duk_push_error_object(ctx, DUK_ERR_RANGE_ERROR, "width and height must be positive");
duk_throw(ctx);
}
duk_get_prop_string(ctx, -1, "bitmap");
size_t size;
uint16_t *bitmap = duk_get_buffer(ctx, -1, &size);
if (bitmap == NULL) {
duk_push_error_object(ctx, DUK_ERR_ERROR, "bitmap pointer is NULL");
duk_throw(ctx);
}
if (0 <= x && x < w && 0 <= y && y < h && size >= (size_t)(w * h * 2)) {
duk_push_int(ctx, bitmap[w * y + x]);
return 1;
} else {
duk_push_error_object(ctx, DUK_ERR_RANGE_ERROR, "coordinates out of range");
duk_throw(ctx);
}
}
duk_ret_t nsp_texture_set_pixel(duk_context *ctx) {
int x = duk_require_int(ctx, 0);
int y = duk_require_int(ctx, 1);
uint16_t color = duk_require_int(ctx, 2);
duk_push_this(ctx);
duk_get_prop_string(ctx, -1, "width");
int w = duk_require_int(ctx, -1);
duk_pop(ctx);
duk_get_prop_string(ctx, -1, "height");
int h = duk_require_int(ctx, -1);
duk_pop(ctx);
if (w <= 0 || h <= 0) {
duk_push_error_object(ctx, DUK_ERR_RANGE_ERROR, "width and height must be positive");
duk_throw(ctx);
}
duk_get_prop_string(ctx, -1, "bitmap");
size_t size;
uint16_t *bitmap = duk_get_buffer(ctx, -1, &size);
if (bitmap == NULL) {
duk_push_error_object(ctx, DUK_ERR_ERROR, "bitmap pointer is NULL");
duk_throw(ctx);
}
if (0 <= x && x < w && 0 <= y && y < h && size >= (size_t)(w * h * 2)) {
bitmap[w * y + x] = (uint16_t)color;
return 0;
} else {
duk_push_error_object(ctx, DUK_ERR_RANGE_ERROR, "coordinates out of range");
duk_throw(ctx);
}
}
// ====== Xtase drawing routines ======
duk_ret_t nsp_texture_draw_line(duk_context *ctx) {
int x1 = duk_require_int(ctx, 0);
int y1 = duk_require_int(ctx, 1);
int x2 = duk_require_int(ctx, 2);
int y2 = duk_require_int(ctx, 3);
uint16_t color = duk_require_int(ctx, 4);
duk_push_this(ctx);
duk_get_prop_string(ctx, -1, "width");
int w = duk_require_int(ctx, -1);
duk_pop(ctx);
duk_get_prop_string(ctx, -1, "height");
int h = duk_require_int(ctx, -1);
duk_pop(ctx);
if (w <= 0 || h <= 0) {
duk_push_error_object(ctx, DUK_ERR_RANGE_ERROR, "width and height must be positive");
duk_throw(ctx);
}
duk_get_prop_string(ctx, -1, "bitmap");
size_t size;
uint16_t *bitmap = duk_get_buffer(ctx, -1, &size);
if (bitmap == NULL) {
duk_push_error_object(ctx, DUK_ERR_ERROR, "bitmap pointer is NULL");
duk_throw(ctx);
}
FbDev* fb = (FbDev*)malloc( 1 * sizeof(FbDev) );
fb->width = w;
fb->height = h;
fb->fb_size = w * h;
fb->fb = bitmap;
drawLine(x1,y1,x2,y2,color,fb);
free(fb);
return 0;
}
duk_ret_t nsp_texture_draw_rect(duk_context *ctx) {
int x = duk_require_int(ctx, 0);
int y = duk_require_int(ctx, 1);
int w_ = duk_require_int(ctx, 2);
int h_ = duk_require_int(ctx, 3);
uint16_t color = duk_require_int(ctx, 4);
duk_push_this(ctx);
duk_get_prop_string(ctx, -1, "width");
int w = duk_require_int(ctx, -1);
duk_pop(ctx);
duk_get_prop_string(ctx, -1, "height");
int h = duk_require_int(ctx, -1);
duk_pop(ctx);
if (w <= 0 || h <= 0) {
duk_push_error_object(ctx, DUK_ERR_RANGE_ERROR, "width and height must be positive");
duk_throw(ctx);
}
duk_get_prop_string(ctx, -1, "bitmap");
size_t size;
uint16_t *bitmap = duk_get_buffer(ctx, -1, &size);
if (bitmap == NULL) {
duk_push_error_object(ctx, DUK_ERR_ERROR, "bitmap pointer is NULL");
duk_throw(ctx);
}
FbDev* fb = (FbDev*)malloc( 1 * sizeof(FbDev) );
fb->width = w;
fb->height = h;
fb->fb_size = w * h;
fb->fb = bitmap;
drawRect(x,y,w_,h_,color,fb);
free(fb);
return 0;
}
duk_ret_t nsp_texture_fill_rect(duk_context *ctx) {
int x = duk_require_int(ctx, 0);
int y = duk_require_int(ctx, 1);
int w_ = duk_require_int(ctx, 2);
int h_ = duk_require_int(ctx, 3);
uint16_t color = duk_require_int(ctx, 4);
duk_push_this(ctx);
duk_get_prop_string(ctx, -1, "width");
int w = duk_require_int(ctx, -1);
duk_pop(ctx);
duk_get_prop_string(ctx, -1, "height");
int h = duk_require_int(ctx, -1);
duk_pop(ctx);
if (w <= 0 || h <= 0) {
duk_push_error_object(ctx, DUK_ERR_RANGE_ERROR, "width and height must be positive");
duk_throw(ctx);
}
duk_get_prop_string(ctx, -1, "bitmap");
size_t size;
uint16_t *bitmap = duk_get_buffer(ctx, -1, &size);
if (bitmap == NULL) {
duk_push_error_object(ctx, DUK_ERR_ERROR, "bitmap pointer is NULL");
duk_throw(ctx);
}
FbDev* fb = (FbDev*)malloc( 1 * sizeof(FbDev) );
fb->width = w;
fb->height = h;
fb->fb_size = w * h;
fb->fb = bitmap;
fillRect(x,y,w_,h_,color,fb);
free(fb);
return 0;
}
int* getIntArray(duk_context *ctx, int stackIndex) {
static int* result = NULL;
if(duk_is_array(ctx, stackIndex)) {
int resultLen = duk_get_length(ctx, stackIndex);
result = (int*)malloc( resultLen * sizeof(int) );
memset(result,0,resultLen);
duk_enum(ctx, stackIndex, DUK_ENUM_ARRAY_INDICES_ONLY);
// NOT stackIndex because waits enumIndex that is -1
int idx=0;
while (duk_next(ctx, -1, 1)) {
// in JS/duktape toto[1] <=> toto["1"]
// that's why keys are strings
const char* k = duk_to_string(ctx, -2);
int v = duk_to_int(ctx, -1);
//printf("key=%s, value=%d\n", k, v);
result[idx++] = v;
duk_pop_2(ctx);
}
duk_pop(ctx); // duk_enum
} else {
printf("Found NO array\n");
}
return result;
}
duk_ret_t nsp_texture_draw_polyLines(duk_context *ctx) {
duk_require_object_coercible(ctx, 0);
int* xys = getIntArray(ctx,0);
int nbPts = duk_require_int(ctx, 1);
uint16_t color = duk_require_int(ctx, 2);
duk_push_this(ctx);
duk_get_prop_string(ctx, -1, "width");
int w = duk_require_int(ctx, -1);
duk_pop(ctx);
duk_get_prop_string(ctx, -1, "height");
int h = duk_require_int(ctx, -1);
duk_pop(ctx);
if (w <= 0 || h <= 0) {
duk_push_error_object(ctx, DUK_ERR_RANGE_ERROR, "width and height must be positive");
duk_throw(ctx);
}
duk_get_prop_string(ctx, -1, "bitmap");
size_t size;
uint16_t *bitmap = duk_get_buffer(ctx, -1, &size);
if (bitmap == NULL) {
duk_push_error_object(ctx, DUK_ERR_ERROR, "bitmap pointer is NULL");
duk_throw(ctx);
}
FbDev* fb = (FbDev*)malloc( 1 * sizeof(FbDev) );
fb->width = w;
fb->height = h;
fb->fb_size = w * h;
fb->fb = bitmap;
drawPolyLines( xys, nbPts, color, fb );
free(fb);
return 0;
}
duk_ret_t nsp_texture_fill_polygon(duk_context *ctx) {
duk_require_object_coercible(ctx, 0);
int* xys = getIntArray(ctx,0);
int nbPts = duk_require_int(ctx, 1);
uint16_t color = duk_require_int(ctx, 2);
duk_push_this(ctx);
duk_get_prop_string(ctx, -1, "width");
int w = duk_require_int(ctx, -1);
duk_pop(ctx);
duk_get_prop_string(ctx, -1, "height");
int h = duk_require_int(ctx, -1);
duk_pop(ctx);
if (w <= 0 || h <= 0) {
duk_push_error_object(ctx, DUK_ERR_RANGE_ERROR, "width and height must be positive");
duk_throw(ctx);
}
duk_get_prop_string(ctx, -1, "bitmap");
size_t size;
uint16_t *bitmap = duk_get_buffer(ctx, -1, &size);
if (bitmap == NULL) {
duk_push_error_object(ctx, DUK_ERR_ERROR, "bitmap pointer is NULL");
duk_throw(ctx);
}
FbDev* fb = (FbDev*)malloc( 1 * sizeof(FbDev) );
fb->width = w;
fb->height = h;
fb->fb_size = w * h;
fb->fb = bitmap;
fillPolygon( xys, nbPts, color, fb );
free(fb);
return 0;
}
duk_ret_t nsp_texture_draw_circle(duk_context *ctx) {
int x = duk_require_int(ctx, 0);
int y = duk_require_int(ctx, 1);
int radius = duk_require_int(ctx, 2);
uint16_t color = duk_require_int(ctx, 3);
duk_push_this(ctx);
duk_get_prop_string(ctx, -1, "width");
int w = duk_require_int(ctx, -1);
duk_pop(ctx);
duk_get_prop_string(ctx, -1, "height");
int h = duk_require_int(ctx, -1);
duk_pop(ctx);
if (w <= 0 || h <= 0) {
duk_push_error_object(ctx, DUK_ERR_RANGE_ERROR, "width and height must be positive");
duk_throw(ctx);
}
duk_get_prop_string(ctx, -1, "bitmap");
size_t size;
uint16_t *bitmap = duk_get_buffer(ctx, -1, &size);
if (bitmap == NULL) {
duk_push_error_object(ctx, DUK_ERR_ERROR, "bitmap pointer is NULL");
duk_throw(ctx);
}
FbDev* fb = (FbDev*)malloc( 1 * sizeof(FbDev) );
fb->width = w;
fb->height = h;
fb->fb_size = w * h;
fb->fb = bitmap;
drawCircle(x,y,radius,color,fb);
free(fb);
return 0;
}
duk_ret_t nsp_texture_fill_circle(duk_context *ctx) {
int x = duk_require_int(ctx, 0);
int y = duk_require_int(ctx, 1);
int radius = duk_require_int(ctx, 2);
uint16_t color = duk_require_int(ctx, 3);
duk_push_this(ctx);
duk_get_prop_string(ctx, -1, "width");
int w = duk_require_int(ctx, -1);
duk_pop(ctx);
duk_get_prop_string(ctx, -1, "height");
int h = duk_require_int(ctx, -1);
duk_pop(ctx);
if (w <= 0 || h <= 0) {
duk_push_error_object(ctx, DUK_ERR_RANGE_ERROR, "width and height must be positive");
duk_throw(ctx);
}
duk_get_prop_string(ctx, -1, "bitmap");
size_t size;
uint16_t *bitmap = duk_get_buffer(ctx, -1, &size);
if (bitmap == NULL) {
duk_push_error_object(ctx, DUK_ERR_ERROR, "bitmap pointer is NULL");
duk_throw(ctx);
}
FbDev* fb = (FbDev*)malloc( 1 * sizeof(FbDev) );
fb->width = w;
fb->height = h;
fb->fb_size = w * h;
fb->fb = bitmap;
fillCircle(x,y,radius,color,fb);
free(fb);
return 0;
}
// ======/Xtase drawing routines/======
static const duk_function_list_entry nsp_texture_methods[] = {
{"display", nsp_texture_display, 0},
{"fill", nsp_texture_fill, 1},
{"getPx", nsp_texture_get_pixel, 2},
{"setPx", nsp_texture_set_pixel, 3},
// Xtase drawing routines
{"drawLine", nsp_texture_draw_line, 5},
{"drawRect", nsp_texture_draw_rect, 5},
{"fillRect", nsp_texture_fill_rect, 5},
{"drawPolyLines", nsp_texture_draw_polyLines, 3},
{"fillPolygon", nsp_texture_fill_polygon, 3},
{"drawCircle", nsp_texture_draw_circle, 4},
{"fillCircle", nsp_texture_fill_circle, 4},
{NULL, NULL, 0}
};
duk_ret_t dukopen_nsp_texture(duk_context *ctx) {
duk_idx_t idx = duk_push_object(ctx);
duk_idx_t stats_constr = duk_push_c_function(ctx, nsp_texture_constructor, DUK_VARARGS);
duk_idx_t stats_prot = duk_push_object(ctx);
duk_put_function_list(ctx, stats_prot, nsp_texture_methods);
duk_put_prop_string(ctx, stats_constr, "prototype");
duk_put_prop_string(ctx, idx, "Texture");
return 1;
}