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roar/libgui/GuiCanvasWxBackendFast.cpp
Lucio Andrés Illanes Albornoz 0c66f94797 Cleanup, bugfixes & C++ backend implementation. 
1) {About,Melp?} window: switch to green on black.
2) Assets window: scroll assets list on selected item update w/ <Cursor> or on deletion.
3) Canvas window: change default brush colours to [3, -1].
4) Canvas window: copy canvas cells given transparent cells from tools.
5) Canvas window: don't disable {re,un}do during object tool usage.
6) Canvas window: don't hide cursor during {re,un}do.
7) Canvas window: draw new cells using current brush background colour on resize.
8) Canvas window: fix memory leak on cell size updating.
9) Text tool: process [\r\n] in text pasted from clipboard.

assets/audio/roar{vap0r[1-8],viking[1-5]}.wav: added.
assets/text/README.txt: updated.
assets/tools/AnsiToMiRCART.py: added (for spoke.)
assets/tools/deploy-python.sh: updated.
2019-10-24 21:14:00 +02:00

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/*
* GuiCanvasWxBackendFast.cpp
* Copyright (c) 2019 Lucio Andrés Illanes Albornoz <lucio@lucioillanes.de>
*/
#ifdef _MSC_VER
#pragma warning(disable : 4514)
#pragma warning(disable : 4530)
#pragma warning(disable : 4577)
#pragma warning(disable : 4706)
#pragma warning(disable : 4710)
#pragma warning(disable : 4711)
#pragma warning(disable : 4820)
#pragma warning(disable : 5045)
#endif /* _MSC_VER_ */
#include <stdarg.h>
#include <stdbool.h>
#include <stdio.h>
#include <stdint.h>
#include <chrono>
#include <cmath>
#include <map>
#include <vector>
#define PY_SSIZE_T_CLEAN /* Make "s#" use Py_ssize_t rather than int. */
#include <Python.h>
/*
* Private types
*/
typedef uint32_t COLOUR;
#define COLOUR_ALPHA(colour) (((colour) >> 24) & 0xff)
typedef uint64_t COORD;
typedef struct point_s {
COORD x, y;
} POINT;
#define POINT_EMPTY {0ULL, 0ULL}
typedef enum cell_attrs_e {
CATTR_NONE = 0x00,
CATTR_BOLD = 0x01,
CATTR_UNDERLINE = 0x02,
} CELL_ATTRS;
typedef struct cell_s {
CELL_ATTRS attrs;
COLOUR bg, fg;
POINT p;
wchar_t txt[8];
} CELL;
#define CELL_EMPTY {CATTR_NONE, 0UL, 0UL, POINT_EMPTY, {L'\0',}}
typedef struct rect_s {
POINT p0, p1;
} RECT;
#define RECT_EMPTY {POINT_EMPTY, POINT_EMPTY}
#define RECT_HEIGHT(r) ((r).p1.y - (r).p0.y)
#define RECT_WIDTH(r) ((r).p1.x - (r).p0.x)
typedef struct size_s {
uint64_t h, w;
} SIZE;
#define SIZE_EMPTY {0ULL, 0ULL}
typedef std::vector<std::vector<uint8_t>> COLOUR_LIST;
typedef std::vector<std::vector<COLOUR>> CHAR_MAP_ITEM;
typedef std::map<wchar_t, CHAR_MAP_ITEM> CHAR_MAP;
/*
* Private constants and variables
*/
#define BITMAP_BPS 24
#define BITMAP_BPS_BYTES 3
#define BLEND_ALPHA_COEFFICIENT 0.8
static PyObject *s_bitmap = NULL, *s_dc = NULL, *s_dc_tmp = NULL, *s_font = NULL, *s_wx = NULL, *s_wx_NullBitmap = NULL;
static uint8_t *s_bitmap_buffer = NULL;
static size_t s_bitmap_buffer_size = 0;
static SIZE s_bitmap_size = SIZE_EMPTY, s_cell_size = SIZE_EMPTY;
static CHAR_MAP s_char_map;
static PyObject *s_colour_black = NULL, *s_colour_white = NULL;
static PyObject *s_error = NULL;
static COLOUR_LIST s_colours = {
{255, 255, 255}, // Bright White
{0, 0, 0}, // Black
{0, 0, 187}, // Light Blue
{0, 187, 0}, // Green
{255, 85, 85}, // Red
{187, 0, 0}, // Light Red
{187, 0, 187}, // Pink
{187, 187, 0}, // Yellow
{255, 255, 85}, // Light Yellow
{85, 255, 85}, // Light Green
{0, 187, 187}, // Cyan
{85, 255, 255}, // Light Cyan
{85, 85, 255}, // Blue
{255, 85, 255}, // Light Pink
{85, 85, 85}, // Grey
{187, 187, 187}, // Light Grey
};
static COLOUR_LIST s_colours_bold = {
{255, 255, 255}, // Bright White
{85, 85, 85}, // Black
{85, 85, 255}, // Light Blue
{85, 255, 85}, // Green
{255, 85, 85}, // Red
{255, 85, 85}, // Light Red
{255, 85, 255}, // Pink
{255, 255, 85}, // Yellow
{255, 255, 85}, // Light Yellow
{85, 255, 85}, // Light Green
{85, 255, 255}, // Cyan
{85, 255, 255}, // Light Cyan
{85, 85, 255}, // Blue
{255, 85, 255}, // Light Pink
{85, 85, 85}, // Grey
{255, 255, 255}, // Light Grey
};
/*
* Private preprocessor macros
*/
#define MAX(a,b) (((a) > (b)) ? (a) : (b))
#define MIN(a,b) (((a) < (b)) ? (a) : (b))
#define PYTHON_TRY(expr, msg) \
[&](){bool rc = (bool)(expr); if (!rc) { PyErr_SetString(s_error, msg); }; return rc;}()
#define PYTHON_TRY_NOMEMORY(expr, msg) \
[&](){bool rc = (bool)(expr); if (!rc) { PyErr_SetString(PyExc_MemoryError, msg); }; return rc;}()
/*
* N.B. required due to absence of Python_CallMethodV()
*/
#define COMMA ,
#define PYTHON_WRAP_METHOD(fn, fmt, args1, args2) \
static bool \
python_##fn(PyObject *obj, const char *default_error, PyObject **presult, args1) \
{ \
bool rc = true; \
PyObject *result; \
\
if ((result = PyObject_CallMethod(obj, #fn, fmt, args2))) { \
if (!presult) { \
Py_XDECREF(result); \
} else { \
*presult = result; \
} \
} else { \
rc = false; \
setErrorFromLast(default_error ? default_error \
: "Failed to call " # fn "()"); \
} \
return rc; \
}
#define PYTHON_WRAP_METHOD0(fn) \
static bool \
python_##fn(PyObject *obj, const char *default_error, PyObject **presult) \
{ \
bool rc = true; \
PyObject *result; \
\
if ((result = PyObject_CallMethod(obj, #fn, ""))) { \
if (!presult) { \
Py_XDECREF(result); \
} else { \
*presult = result; \
} \
} else { \
rc = false; \
setErrorFromLast(default_error ? default_error \
: "Failed to call " # fn "()"); \
} \
return rc; \
}
/*
* Static private subroutine prototypes
*/
static COLOUR blendColours(COLOUR bg, COLOUR fg);
static void cellDraw(size_t bitmap_bps_bytes, uint8_t *bitmap_buffer, SIZE bitmap_size, CELL cell, SIZE cell_size, RECT *prect);
static bool cellDrawPixel(size_t bitmap_bps_bytes, uint8_t *bitmap_buffer, SIZE bitmap_size, CELL cell, SIZE cell_size, COLOUR colour, RECT *prect, COORD rx, COORD ry);
static bool cellDrawText(size_t bitmap_bps_bytes, uint8_t *bitmap_buffer, SIZE bitmap_size, CELL cell, SIZE cell_size, CHAR_MAP& char_map, RECT *prect);
static bool cellFetch(const COLOUR_LIST& colours, const COLOUR_LIST& colours_bold, PyObject *object, bool fromCanvas, POINT canvasPoint, CELL *pcell);
static void setErrorFromLast(const char *default_fmt, ...);
#ifdef TIMING
static std::chrono::system_clock::time_point timeBegin();
static double timeDelta(std::chrono::system_clock::time_point t0);
#endif /* TIMING */
static bool updateCharMap(SIZE cell_size, CHAR_MAP& char_map, wchar_t wch);
PYTHON_WRAP_METHOD(Bitmap, "lll", unsigned long long width COMMA unsigned long long height COMMA unsigned long long bits, width COMMA height COMMA bits);
PYTHON_WRAP_METHOD(Blit, "OllllOll", PyObject *self COMMA unsigned long long xdest COMMA unsigned long long ydest COMMA unsigned long long width COMMA unsigned long long height COMMA PyObject *source COMMA unsigned long long xsrc COMMA unsigned long long ysrc, self COMMA xdest COMMA ydest COMMA width COMMA height COMMA source COMMA xsrc COMMA ysrc);
PYTHON_WRAP_METHOD(Colour, "lll", unsigned long long red COMMA unsigned long long green COMMA unsigned long long blue, red COMMA green COMMA blue);
PYTHON_WRAP_METHOD(CopyFromBuffer, "Ol", PyObject *data COMMA unsigned long long format, data COMMA format);
PYTHON_WRAP_METHOD(CopyToBuffer, "Ol", PyObject *data COMMA unsigned long long format, data COMMA format);
PYTHON_WRAP_METHOD(DrawText, "u#ll", wchar_t *text COMMA size_t text_size COMMA unsigned long long x COMMA unsigned long long y, text COMMA text_size COMMA x COMMA y);
PYTHON_WRAP_METHOD0(MemoryDC);
PYTHON_WRAP_METHOD(SelectObject, "O", PyObject *bitmap, bitmap);
PYTHON_WRAP_METHOD(SetFont, "O", PyObject *font, font);
PYTHON_WRAP_METHOD(SetTextBackground, "O", PyObject *colour, colour);
PYTHON_WRAP_METHOD(SetTextForeground, "O", PyObject *colour, colour);
/*
* Static private subroutines
*/
static COLOUR
blendColours(COLOUR bg, COLOUR fg)
{
return (COLOUR)
(std::llround(((fg & 0xff) * BLEND_ALPHA_COEFFICIENT) + ((bg & 0xff) * (1.0 - BLEND_ALPHA_COEFFICIENT))) |
(std::llround((((fg >> 8) & 0xff) * BLEND_ALPHA_COEFFICIENT) + (((bg >> 8) & 0xff) * (1.0 - BLEND_ALPHA_COEFFICIENT))) << 8) |
(std::llround((((fg >> 16) & 0xff) * BLEND_ALPHA_COEFFICIENT) + (((bg >> 16) & 0xff) * (1.0 - BLEND_ALPHA_COEFFICIENT))) << 16));
}
static void
cellDraw(size_t bitmap_bps_bytes, uint8_t *bitmap_buffer, SIZE bitmap_size, CELL cell, SIZE cell_size, RECT *prect)
{
for (COORD ry = 0; ry < cell_size.h; ry++) {
for (COORD rx = 0; rx < cell_size.w; rx++)
cellDrawPixel(bitmap_bps_bytes, bitmap_buffer, bitmap_size, cell, cell_size, cell.bg, prect, rx, ry);
}
if (cell.attrs & CATTR_UNDERLINE) {
for (COORD rx = 0, ry = (cell_size.h - 1); rx < cell_size.w; rx++)
cellDrawPixel(bitmap_bps_bytes, bitmap_buffer, bitmap_size, cell, cell_size, cell.fg, prect, rx, ry);
}
}
static bool
cellDrawPixel(size_t bitmap_bps_bytes, uint8_t *bitmap_buffer, SIZE bitmap_size, CELL cell, SIZE cell_size, COLOUR colour, RECT *prect, COORD rx, COORD ry)
{
COORD offset, x_, y_;
bool rc = false;
x_ = (cell.p.x * cell_size.w) + rx, y_ = (cell.p.y * cell_size.h) + ry;
offset = ((y_ * bitmap_size.w) + x_) * bitmap_bps_bytes;
if ((x_ < bitmap_size.w) && (y_ < bitmap_size.h)) {
prect->p0.x = MIN(prect->p0.x > 0 ? prect->p0.x : x_, x_);
prect->p0.y = MIN(prect->p0.y > 0 ? prect->p0.y : y_, y_);
prect->p1.x = MAX(prect->p1.x, x_+ 1); prect->p1.y = MAX(prect->p1.y, y_+ 1);
bitmap_buffer[offset] = colour & 0xff;
bitmap_buffer[offset + 1] = (colour >> 8) & 0xff;
bitmap_buffer[offset + 2] = (colour >> 16) & 0xff;
rc = true;
}
return rc;
}
static bool
cellDrawText(size_t bitmap_bps_bytes, uint8_t *bitmap_buffer, SIZE bitmap_size, CELL cell, SIZE cell_size, CHAR_MAP& char_map, RECT *prect)
{
CHAR_MAP::iterator char_map_item;
COLOUR colour;
bool rc = true;
for (size_t nch = 0; (nch < (sizeof(cell.txt) / sizeof(cell.txt[0]))) && (cell.txt[nch]); nch++) {
if ((char_map_item = char_map.find(cell.txt[nch])) == char_map.end()) {
if (updateCharMap(cell_size, char_map, cell.txt[nch]))
char_map_item = char_map.find(cell.txt[nch]);
else {
rc = false; break;
}
}
for (COORD ry = 0; ry < cell_size.h; ry++) {
for (COORD rx = 0; rx < cell_size.w; rx++) {
if ((char_map_item != char_map.end())
&& (char_map_item->second[ry][rx] != (COLOUR)0x0L))
colour = cell.fg;
else
colour = cell.bg;
cellDrawPixel(bitmap_bps_bytes, bitmap_buffer, bitmap_size, cell, cell_size, colour, prect, rx, ry);
}
}
}
if (cell.attrs & CATTR_UNDERLINE) {
for (COORD rx = 0, ry = (cell_size.h - 1); rx < cell_size.w; rx++)
cellDrawPixel(bitmap_bps_bytes, bitmap_buffer, bitmap_size, cell, cell_size, cell.fg, prect, rx, ry);
}
return rc;
}
static bool
cellFetch(const COLOUR_LIST& colours, const COLOUR_LIST& colours_bold, PyObject *object, bool fromCanvas, POINT canvasPoint, CELL *pcell)
{
long bg, fg;
PyObject *canvasMapRow, *cellObject = NULL, *txt;
Py_ssize_t offset, txt_len;
const COLOUR_LIST *pcolours;
bool rc = false;
if (fromCanvas) {
offset = -2;
if ((canvasMapRow = PyList_GetItem(object, (Py_ssize_t)canvasPoint.y)))
cellObject = PyList_GetItem(canvasMapRow, (Py_ssize_t)canvasPoint.x);
} else
cellObject = object, offset = 0;
if (cellObject && PyList_Check(cellObject) && (PyList_Size(cellObject) == 6 + offset)) {
if (!fromCanvas) {
pcell->p.x = PyLong_AsUnsignedLongLong(PyList_GetItem(cellObject, 0));
pcell->p.y = PyLong_AsUnsignedLongLong(PyList_GetItem(cellObject, 1));
}
fg = PyLong_AsLong(PyList_GetItem(cellObject, 2 + offset));
bg = PyLong_AsLong(PyList_GetItem(cellObject, 3 + offset));
pcell->attrs = (CELL_ATTRS)PyLong_AsUnsignedLong(PyList_GetItem(cellObject, 4 + offset));
if (pcell->attrs & CATTR_BOLD)
pcolours = &colours_bold;
else
pcolours = &colours;
pcell->bg = (bg == -1) ? 0xff000000 : (COLOUR)((colours[(uint8_t)bg][0]) | ((colours[(uint8_t)bg][1] << 8) & 0xff00) | ((colours[(uint8_t)bg][2] << 16) & 0xff0000));
pcell->fg = (fg == -1) ? pcell->bg : (COLOUR)(((*pcolours)[(uint8_t)fg][0]) | (((*pcolours)[(uint8_t)fg][1] << 8) & 0xff00) | (((*pcolours)[(uint8_t)fg][2] << 16) & 0xff0000));
txt = PyList_GetItem(cellObject, 5 + offset);
if ((txt_len = PyUnicode_AsWideChar(txt, pcell->txt, sizeof(pcell->txt) / sizeof(pcell->txt[0]))) > 0) {
if (txt_len < (sizeof(pcell->txt) / sizeof(pcell->txt[0])))
pcell->txt[txt_len] = L'\0';
rc = true;
}
}
return rc;
}
static void
setErrorFromLast(const char *default_fmt, ...)
{
va_list ap;
static char default_buf[1024];
PyObject *exc_traceback, *exc_type, *exc_value = NULL;
PyErr_Fetch(&exc_type, &exc_value, &exc_traceback);
if (exc_value)
PyErr_SetObject(s_error, exc_value);
else {
va_start(ap, default_fmt);
vsnprintf_s(default_buf, sizeof(default_buf), default_fmt, ap);
va_end(ap);
PyErr_SetString(s_error, default_buf);
}
}
#ifdef TIMING
static std::chrono::system_clock::time_point
timeBegin()
{
return std::chrono::system_clock::now();
}
static double
timeDelta(std::chrono::system_clock::time_point t0)
{
return ((std::chrono::duration<double>)(std::chrono::system_clock::now() - t0)).count();
}
#endif /* TIMING */
static bool
updateCharMap(SIZE cell_size, CHAR_MAP& char_map, wchar_t wch)
{
PyObject *bitmap, *mv = NULL;
Py_buffer buffer;
uint8_t *char_buffer = NULL;
size_t char_buffer_size;
bool rc = false;
PyBuffer_FillInfo(&buffer, 0, NULL, 0, false, PyBUF_WRITABLE);
char_buffer_size = s_cell_size.w * s_cell_size.h * BITMAP_BPS_BYTES;
if (python_Bitmap(s_wx, NULL, &bitmap, s_cell_size.w, s_cell_size.h, BITMAP_BPS)
&& python_SelectObject(s_dc_tmp, NULL, NULL, bitmap)
&& python_SetFont(s_dc_tmp, NULL, NULL, s_font)
&& python_SetTextBackground(s_dc_tmp, NULL, NULL, s_colour_black)
&& python_SetTextForeground(s_dc_tmp, NULL, NULL, s_colour_white)
&& python_DrawText(s_dc_tmp, NULL, NULL, &wch, 1, 0, 0)
&& PYTHON_TRY_NOMEMORY((char_buffer = (uint8_t *)malloc(char_buffer_size)), "Failed to allocate character bitmap buffer")
&& PYTHON_TRY(PyBuffer_FillInfo(&buffer, 0, char_buffer, (Py_ssize_t)char_buffer_size, false, PyBUF_WRITABLE) == 0, "Failed to create Py_buffer")
&& PYTHON_TRY((mv = PyMemoryView_FromBuffer(&buffer)), "Failed to create Py_buffer memory view")
&& python_CopyToBuffer(bitmap, NULL, NULL, mv, 0)) {
char_map[wch] = CHAR_MAP_ITEM(cell_size.h);
for (COORD ry = 0; ry < cell_size.h; ry++) {
for (COORD rx = 0; rx < cell_size.w; rx++)
char_map[wch][ry].push_back(
(((COLOUR)char_buffer[(((ry * cell_size.w) + rx) * BITMAP_BPS_BYTES)]) & 0xff) |
(((COLOUR)char_buffer[(((ry * cell_size.w) + rx) * BITMAP_BPS_BYTES) + 1] << 8) & 0xff00) |
(((COLOUR)char_buffer[(((ry * cell_size.w) + rx) * BITMAP_BPS_BYTES) + 2] << 16) & 0xff0000));
}
rc = true;
}
if (s_dc_tmp)
python_SelectObject(s_dc_tmp, NULL, NULL, s_wx_NullBitmap);
Py_XDECREF(bitmap);
if (char_buffer) {
free(char_buffer);
}
Py_XDECREF(mv); PyBuffer_Release(&buffer);
return rc;
}
/*
* Private Python module subroutine prototypes
*/
static PyObject *GuiCanvasWxBackendFast_drawPatches(PyObject *self, PyObject *args);
static PyObject *GuiCanvasWxBackendFast_init(PyObject *self, PyObject *args);
static PyObject *GuiCanvasWxBackendFast_resize(PyObject *self, PyObject *args);
/*
* Private Python module subroutines
*/
static PyObject *
GuiCanvasWxBackendFast_drawPatches(PyObject *self, PyObject *args)
{
PyObject *bitmap, *canvas_map, *canvas_size_obj, *eventDc, *patches;
Py_buffer buffer;
SIZE canvas_size;
CELL cell, cell_canvas;
bool isCursor, skip, status = true;
PyObject *iter, *iter_cur, *mv = NULL, *rc = NULL;
RECT rect = RECT_EMPTY;
(void)self;
PyBuffer_FillInfo(&buffer, 0, NULL, 0, false, PyBUF_WRITABLE);
#ifdef TIMING
auto t0 = timeBegin();
#endif /* TIMING */
if (PYTHON_TRY(PyArg_ParseTuple(args, "OOOOpO", &bitmap, &canvas_map, &canvas_size_obj, &eventDc, &isCursor, &patches), "Invalid arguments")
&& PYTHON_TRY((iter = PyObject_GetIter(patches)), "Failed to get patches iterator object")) {
canvas_size.w = PyLong_AsUnsignedLong(PyList_GetItem(canvas_size_obj, 0));
canvas_size.h = PyLong_AsUnsignedLong(PyList_GetItem(canvas_size_obj, 1));
while (iter_cur = PyIter_Next(iter)) {
skip = false, status = true;
if (PYTHON_TRY(cellFetch(s_colours, s_colours_bold, iter_cur, false, POINT_EMPTY, &cell), "Failed to get patch cell")) {
if (isCursor) {
if (!(skip = !cellFetch(s_colours, s_colours_bold, canvas_map, true, cell.p, &cell_canvas))) {
cell.attrs = cell_canvas.attrs;
if (COLOUR_ALPHA(cell.bg) != 0xff) {
cell.fg = blendColours(cell_canvas.fg, cell.bg); cell.bg = blendColours(cell_canvas.bg, cell.bg);
if ((cell_canvas.txt[0] == L' ') && (COLOUR_ALPHA(cell_canvas.bg) == 0xff))
cell.txt[0] = L'\u2591', cell.txt[1] = L'\0';
else
memcpy(cell.txt, cell_canvas.txt, sizeof(cell.txt));
} else if (COLOUR_ALPHA(cell_canvas.bg) == 0xff) {
cell.fg = cell_canvas.fg, cell.bg = cell_canvas.bg;
if (cell_canvas.txt[0] == L' ')
cell.txt[0] = L'\u2591', cell.txt[1] = L'\0';
else
memcpy(cell.txt, cell_canvas.txt, sizeof(cell.txt));
} else {
cell.fg = cell_canvas.fg, cell.bg = cell_canvas.bg;
memcpy(cell.txt, cell_canvas.txt, sizeof(cell.txt));
}
}
} else if ((cell.txt[0] == L' ') && (COLOUR_ALPHA(cell.bg) == 0xff))
cell.bg = 0x00000000, cell.txt[0] = L'\u2591', cell.txt[1] = L'\0';
if (status && !skip) {
if (cell.txt[0] != L' ')
status = cellDrawText(BITMAP_BPS_BYTES, s_bitmap_buffer, s_bitmap_size, cell, s_cell_size, s_char_map, &rect);
else
cellDraw(BITMAP_BPS_BYTES, s_bitmap_buffer, s_bitmap_size, cell, s_cell_size, &rect);
}
}
Py_XDECREF(iter_cur);
}
Py_XDECREF(iter);
if (status
&& PYTHON_TRY(PyBuffer_FillInfo(&buffer, 0, s_bitmap_buffer, (Py_ssize_t)s_bitmap_buffer_size, false, PyBUF_WRITABLE) == 0, "Failed to create Py_buffer")
&& PYTHON_TRY((mv = PyMemoryView_FromBuffer(&buffer)), "Failed to create Py_buffer memory view")
&& python_CopyFromBuffer(s_bitmap, NULL, NULL, mv, 0)
&& python_Blit((PyObject *)eventDc->ob_type, NULL, NULL, eventDc, rect.p0.x, rect.p0.y, RECT_WIDTH(rect), RECT_HEIGHT(rect), s_dc, rect.p0.x, rect.p0.y)) {
Py_INCREF(Py_True), rc = Py_True;
}
}
#ifdef TIMING
printf("drawing took %.2f ms\n", timeDelta(t0) * 1000);
#endif /* TIMING */
Py_XDECREF(mv); PyBuffer_Release(&buffer);
return rc;
}
static PyObject *
GuiCanvasWxBackendFast_init(PyObject *self, PyObject *args)
{
PyObject *colour_black = NULL, *colour_white = NULL, *dc = NULL, *dc_tmp = NULL, *wx = NULL, *wx_NullBitmap = NULL;
PyObject *rc = NULL, *wx_dict;
(void)self;
if (PYTHON_TRY(PyArg_ParseTuple(args, "O", &wx), "Invalid arguments")
&& PYTHON_TRY((wx_dict = PyModule_GetDict(wx)), "Failed to get wx module dictionary")
&& python_Colour(wx, NULL, &colour_black, 0, 0, 0)
&& python_Colour(wx, NULL, &colour_white, 255, 255, 255)
&& python_MemoryDC(wx, NULL, &dc)
&& python_MemoryDC(wx, NULL, &dc_tmp)
&& PYTHON_TRY((wx_NullBitmap = PyObject_GetAttrString(wx, "NullBitmap")), "Failed to get wx.NullBitmap attribute")) {
s_colour_black = colour_black, s_colour_white = colour_white, s_dc = dc, s_dc_tmp = dc_tmp;
s_wx = wx; Py_INCREF(wx_NullBitmap), s_wx_NullBitmap = wx_NullBitmap;
Py_INCREF(Py_True), rc = Py_True;
}
if (!rc) {
Py_XDECREF(colour_black); Py_XDECREF(colour_white); Py_XDECREF(dc); Py_XDECREF(dc_tmp); Py_XDECREF(wx_NullBitmap);
}
return rc;
}
static PyObject *
GuiCanvasWxBackendFast_resize(PyObject *self, PyObject *args)
{
uint8_t *bitmap_buffer_new = NULL;
size_t bitmap_buffer_size_new;
PyObject *bitmap_new = NULL;
SIZE bitmap_size_new, cell_size_new;
PyObject *cellSize, *cellSizeHeightObj, *cellSizeWidthObj, *font, *winSize, *winSizeHeightObj, *winSizeWidthObj, *rc = NULL;
(void)self;
if (PYTHON_TRY(PyArg_ParseTuple(args, "OOO", &cellSize, &font, &winSize) && PyTuple_Check(cellSize) && PyTuple_Check(winSize), "Invalid arguments")) {
cellSizeWidthObj = PyTuple_GetItem(cellSize, 0); cellSizeHeightObj = PyTuple_GetItem(cellSize, 1);
cell_size_new.w = PyLong_AsUnsignedLong(cellSizeWidthObj); cell_size_new.h = PyLong_AsUnsignedLong(cellSizeHeightObj);
winSizeWidthObj = PyTuple_GetItem(winSize, 0); bitmap_size_new.w = PyLong_AsUnsignedLong(winSizeWidthObj);
winSizeHeightObj = PyTuple_GetItem(winSize, 1); bitmap_size_new.h = PyLong_AsUnsignedLong(winSizeHeightObj);
bitmap_buffer_size_new = bitmap_size_new.h * bitmap_size_new.w * BITMAP_BPS_BYTES;
if (python_Bitmap(s_wx, NULL, &bitmap_new, bitmap_size_new.w, bitmap_size_new.h, BITMAP_BPS)
&& (s_bitmap ? python_SelectObject(s_dc, NULL, NULL, s_wx_NullBitmap) : true)
&& python_SelectObject(s_dc, NULL, NULL, bitmap_new)
&& PYTHON_TRY_NOMEMORY((bitmap_buffer_new = (uint8_t *)malloc(bitmap_buffer_size_new)), "Failed to allocate bitmap buffer")) {
if (s_bitmap_buffer)
free(s_bitmap_buffer);
s_bitmap_buffer = bitmap_buffer_new;
Py_XDECREF(s_bitmap); s_bitmap = bitmap_new;
s_bitmap_buffer_size = bitmap_buffer_size_new, s_bitmap_size = bitmap_size_new;
if ((cell_size_new.h != s_cell_size.h) || (cell_size_new.w != s_cell_size.w))
s_char_map.clear();
s_cell_size = cell_size_new; Py_INCREF(font), s_font = font; Py_INCREF(Py_True), rc = Py_True;
}
}
if (!rc) {
if (bitmap_buffer_new)
free(bitmap_buffer_new);
Py_XDECREF(bitmap_new); Py_XDECREF(font);
}
return rc;
}
/*
* Python C/C++ extension footer
*/
static PyMethodDef
GuiCanvasWxBackendFast_methods[] = {
{"drawPatches", GuiCanvasWxBackendFast_drawPatches, METH_VARARGS, "drawPatches"},
{"init", GuiCanvasWxBackendFast_init, METH_VARARGS, "init"},
{"resize", GuiCanvasWxBackendFast_resize, METH_VARARGS, "resize"},
{NULL, NULL, 0, NULL},
};
static struct PyModuleDef
GuiCanvasWxBackendFastmodule = {
PyModuleDef_HEAD_INIT, "GuiCanvasWxBackendFast", NULL, -1, GuiCanvasWxBackendFast_methods,
};
PyMODINIT_FUNC
PyInit_GuiCanvasWxBackendFast(void)
{
PyObject *m = NULL;
m = PyModule_Create(&GuiCanvasWxBackendFastmodule);
s_error = PyErr_NewException("GuiCanvasWxBackendFast.error", NULL, NULL);
Py_XINCREF(s_error);
if (PyModule_AddObject(m, "error", s_error) < 0) {
Py_XDECREF(s_error); Py_CLEAR(s_error); Py_DECREF(m); m = NULL;
}
return m;
}
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