aboutsummaryrefslogtreecommitdiff
path: root/src/script/graphics/luaopen_graphics.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'src/script/graphics/luaopen_graphics.cpp')
-rw-r--r--src/script/graphics/luaopen_graphics.cpp526
1 files changed, 0 insertions, 526 deletions
diff --git a/src/script/graphics/luaopen_graphics.cpp b/src/script/graphics/luaopen_graphics.cpp
deleted file mode 100644
index 40bdaa1..0000000
--- a/src/script/graphics/luaopen_graphics.cpp
+++ /dev/null
@@ -1,526 +0,0 @@
-#include "3rdparty/luax/luax.h"
-
-#include "libjin/jin.h"
-
-#include "../luaopen_types.h"
-#include "../embed/graphics.lua.h"
-
-namespace jin
-{
-namespace lua
-{
- using namespace render;
- using namespace fs;
-
- /**
- * jin.graphics context, storge some module
- * shared variables.
- */
- static struct
- {
- color curRenderColor;
- Font* curFont = 0;
- Font* defaultFont = 0;
- } context;
-
- /**
- * Init video system.
- * jin.graphics.init(width, height, title)
- */
- static int l_init(lua_State* L)
- {
- Window* wnd = Window::get();
- WindowSetting setting;
- setting.width = luax_getfield_integer(L, 1, "width");
- setting.height = luax_getfield_integer(L, 1, "height");
- setting.title = luax_getfield_string(L, 1, "title");
- setting.vsync = luax_getfield_bool(L, 1, "vsync");
- luax_pushboolean(L, wnd->init(&setting));
- return 1;
- }
-
- static int l_destroy(lua_State* L)
- {
- Window* wnd = Window::get();
- wnd->quit();
- return 0;
- }
-
- /**
- * Get windows size.
- */
- static int l_getSize(lua_State* L)
- {
- Window* wnd = Window::get();
- luax_pushnumber(L, wnd->getW());
- luax_pushnumber(L, wnd->getH());
- return 2;
- }
-
- /**
- * Create a image userdata and set metatable for it.
- */
- static int l_newImage(lua_State* L)
- {
- Filesystem* fs = Filesystem::get();
- const char* f = luax_checkstring(L, 1);
- if (!fs->exists(f))
- {
- printf("Error: no such image %s\n", f);
- exit(1);
- }
- Buffer b;
- fs->read(f, &b);
-
- Proxy* proxy = (Proxy*)luax_newinstance(L, TYPE_IMAGE, sizeof(Proxy));
- Image* img = new Image((const char*)b.data, b.size);
- proxy->bind(img);
- return 1;
- }
-
- /**
- * Create a new JSL program.
- * graphics.Shader(program)
- */
- static int l_newShader(lua_State* L)
- {
- Proxy* proxy = (Proxy*)luax_newinstance(L, TYPE_JSL, sizeof(JSLProgram));
- const char* program = luax_checkstring(L, 1);
- JSLProgram* jsl = new JSLProgram(program);
- proxy->bind(jsl);
- return 1;
- }
-
- /**
- * Create a new Canvas, don't use it in loop, very slow.
- * jin.graphics.newCanvas(w, h)
- */
- static int l_newCanvas(lua_State* L)
- {
- int w = luax_checknumber(L, 1);
- int h = luax_checknumber(L, 2);
- Proxy* proxy = (Proxy*)luax_newinstance(L, TYPE_CANVAS, sizeof(Proxy));
- Canvas* cvs = new Canvas(w, h);
- proxy->bind(cvs);
- return 1;
- }
-
- static int l_clear(lua_State* L)
- {
- if (luax_gettop(L) == 0)
- {
- glClearColor(0, 0, 0, 1);
- }
- else
- {
- int r = luax_checknumber(L, 1);
- int g = luax_checknumber(L, 2);
- int b = luax_checknumber(L, 3);
- int a = luax_checknumber(L, 4);
- glClearColor(r / 255.f, g / 255.f, b / 255.f, a / 255.f);
- }
- glClear(GL_COLOR_BUFFER_BIT);
- return 0;
- }
-
- /**
- * Swap render buffers, present current buffer to front.
- */
- static int l_present(lua_State* L)
- {
- Window::get()->swapBuffers();
- return 0;
- }
-
- // jin.graphics.draw(x, y, scalex, scaley, r)
- static int l_draw(lua_State* L)
- {
- int x = luax_optnumber(L, 2, 0);
- int y = luax_optnumber(L, 3, 0);
- float sx = luax_optnumber(L, 4, 1);
- float sy = luax_optnumber(L, 5, 1);
- float r = luax_optnumber(L, 6, 0);
- if (luax_istype(L, 1, TYPE_IMAGE))
- {
- Proxy* proxy = (Proxy*)luax_toudata(L, 1);
- Image* img = (Image*)proxy->object;
- img->draw(x, y, sx, sy, r);
- }
- else if (luax_istype(L, 1, TYPE_CANVAS))
- {
- Proxy* proxy = (Proxy*)luax_toudata(L, 1);
- Canvas* p = (Canvas*)proxy->object;
- p->draw(x, y, sx, sy, r);
- }
- else
- {
- /* wrong type */
- luax_typerror(L, 1, "image or canvas");
- }
- return 0;
- }
-
- static int l_setColor(lua_State* L)
- {
- // jin.graphics.color() to set back to default
- // render color
- if (luax_gettop(L) == 0)
- {
- glColor4f(1, 1, 1, 1);
- return 0;
- }
-
- context.curRenderColor.rgba.r = luax_checknumber(L, 1);
- context.curRenderColor.rgba.g = luax_checknumber(L, 2);
- context.curRenderColor.rgba.b = luax_checknumber(L, 3);
- context.curRenderColor.rgba.a = luax_checknumber(L, 4);
-
- glColor4f(context.curRenderColor.rgba.r / 255.f,
- context.curRenderColor.rgba.g / 255.f,
- context.curRenderColor.rgba.b / 255.f,
- context.curRenderColor.rgba.a / 255.f);
- return 0;
- }
-
- static int l_getColor(lua_State * L)
- {
- luax_pushnumber(L, context.curRenderColor.rgba.r);
- luax_pushnumber(L, context.curRenderColor.rgba.g);
- luax_pushnumber(L, context.curRenderColor.rgba.b);
- luax_pushnumber(L, context.curRenderColor.rgba.a);
- return 4;
- }
-
- static int l_bindCanvas(lua_State* L)
- {
- if (luax_gettop(L) == 0)
- {
- // bind to default canvas
- Canvas::unbind();
- return 0;
- }
- Proxy* proxy = (Proxy*)luax_checktype(L, 1, TYPE_CANVAS);
- Canvas* c = (Canvas*)proxy->object;
- c->bind();
- return 0;
- }
-
- static int l_unbindCanvas(lua_State* L)
- {
- Canvas::unbind();
- return 0;
- }
-
- static int l_useShader(lua_State* L)
- {
- if (luax_gettop(L) == 0)
- {
- JSLProgram::unuse();
- return 0;
- }
- if (luax_istype(L, 1, TYPE_JSL))
- {
- Proxy* proxy = (Proxy*)luax_toudata(L, 1);
- JSLProgram* jsl = (JSLProgram*)proxy->object;
- jsl->use();
- }
- else
- {
- luax_typerror(L, 1, "JSL shader");
- }
- return 0;
- }
-
- static int l_unuseShader(lua_State* L)
- {
- JSLProgram::unuse();
- return 0;
- }
-
- static int l_setBlend(lua_State* L)
- {
-
- return 0;
- }
-
- static RENDER_MODE strtomode(const char* str)
- {
- std::string s = std::string(str);
- if (s == "fill") return FILL;
- else if (s == "line") return LINE;
- else return NONE;
- }
-
- /**
- * draw pixel to screen
- * jin.graphics.pixel(x, y)
- */
- static int l_drawpoint(lua_State* L)
- {
- int x = luax_checknumber(L, 1);
- int y = luax_checknumber(L, 2);
- render::point(x, y);
-
- return 0;
- }
-
- static int l_drawLine(lua_State* L)
- {
- int x1 = luax_checknumber(L, 1);
- int y1 = luax_checknumber(L, 2);
- int x2 = luax_checknumber(L, 3);
- int y2 = luax_checknumber(L, 4);
- render::line(x1, y1, x2, y2);
-
- return 0;
- }
-
- static int l_drawRect(lua_State* L)
- {
- const char* modestr = luax_checkstring(L, 1);
- RENDER_MODE mode = strtomode(modestr);
- if (mode != NONE)
- {
- int x = luax_checknumber(L, 2);
- int y = luax_checknumber(L, 3);
- int w = luax_checknumber(L, 4);
- int h = luax_checknumber(L, 5);
- render::rect(mode, x, y, w, h);
- }
- else
- {
- luax_typerror(L, 1, "'fill' or 'line'");
- return 1;
- }
-
- return 0;
- }
-
- static int l_drawCircle(lua_State* L)
- {
- const char* modestr = luax_checkstring(L, 1);
- RENDER_MODE mode = strtomode(modestr);
- if (mode != NONE)
- {
- int x = luax_checknumber(L, 2);
- int y = luax_checknumber(L, 3);
- float r = luax_checknumber(L, 4);
- render::circle(mode, x, y, r);
- }
- else
- {
- luax_typerror(L, 1, "'fill' or 'line'");
- return 1;
- }
-
- return 0;
- }
-
- static int l_drawTriangle(lua_State* L)
- {
- const char* modestr = luax_checkstring(L, 1);
- RENDER_MODE mode = strtomode(modestr);
- if (mode != NONE)
- {
- int x = luax_checknumber(L, 2);
- int y = luax_checknumber(L, 3);
-
- int x2 = luax_checknumber(L, 3);
- int y2 = luax_checknumber(L, 4);
-
- int x3 = luax_checknumber(L, 5);
- int y3 = luax_checknumber(L, 6);
-
- render::triangle(mode, x, y, x2, y2, x3, y3);
- }
- else
- {
- luax_typerror(L, 1, "'fill' or 'line'");
- return 1;
- }
-
- return 0;
- }
-
- /**
- * draw polygon.
- * jin.graphics.polygon(mode, n, {{}, {}, {}...})
- */
- static int l_drawPolygon(lua_State* L)
- {
- const char* modestr = luax_checkstring(L, 1);
- int n = luax_checknumber(L, 2);
- RENDER_MODE mode = strtomode(modestr);
- if (mode != NONE)
- {
- if (!luax_istable(L, 3))
- {
- luax_typerror(L, 3, "table");
- return 1;
- }
- int tn = luax_tableidxlen(L, 3);
- if (tn != n * 2)
- {
- static char* emsg = \
- "number of polygon vertices doesn't match " \
- "provided n, expect %d numbers but get %d";
- luax_error(L, emsg, n * 2, tn);
- return 1;
- }
- float* p = new float[2 * n];
- for (int i = 1; i <= 2 * n; ++i)
- p[i - 1] = luax_rawgetnumber(L, 3, i);
- render::polygon(mode, p, n);
- delete[] p;
- }
- else
- {
- luax_typerror(L, 1, "'fill' or 'line'");
- return 1;
- }
-
- return 0;
- }
-
- static int l_newFont(lua_State* L)
- {
- Font* font = (Font*)luax_newinstance(L, TYPE_FONT, sizeof(Font));
- const char* path = luax_checkstring(L, 1);
- Filesystem* fs = Filesystem::get();
- Buffer b = {};
- if (!fs->exists(path))
- {
- printf("Error: no such font %s\n", path);
- exit(1);
- }
- fs->read(path, &b);
- font->loadb((const unsigned char*)b.data);
-
- return 1;
- }
-
- /**
- * study font, 0 args for study default font.
- */
- static int l_study(lua_State* L)
- {
- int n = luax_gettop(L);
- if (n == 0)
- {
- if (context.defaultFont == 0)
- {
- #include "data/font.ttf.h"
- // load default font
- context.defaultFont = new Font();
- context.defaultFont->loadb(font_ttf);
- }
- context.curFont = context.defaultFont;
- return 0;
- }
- Font* font = (Font*)luax_checktype(L, 1, TYPE_FONT);
- context.curFont = font;
- return 0;
- }
-
- /**
- * draw text with current font(after study). befor write, must
- * study a font.
- */
- static int l_write(lua_State* L)
- {
- if (context.curFont == 0)
- return 0;
-
- const char* text = luax_checkstring(L, 1);
- int x = luax_checknumber(L, 2);
- int y = luax_checknumber(L, 3);
-
- int fh = luax_optnumber(L, 4, 15);
- int spacing = luax_optnumber(L, 5, 1);
- int lh = luax_optnumber(L, 6, 18);
-
- context.curFont->render(text, x, y, fh, spacing, lh);
-
- return 0;
- }
-
- /**
- * get text bound box
- */
- static int l_box(lua_State* L)
- {
- const char* text = luax_checkstring(L, 1);
- int fontheight = luax_checknumber(L, 2);
- int spacing = luax_checknumber(L, 3);
- int lineheight = luax_checknumber(L, 4);
- int w, h;
- context.curFont->box(text, fontheight, spacing, lineheight, &w, &h);
- luax_pushnumber(L, w);
- luax_pushnumber(L, h);
- return 2;
- }
-
- static const luaL_Reg f[] = {
- {"init", l_init},
- {"size", l_getSize},
- {"Image", l_newImage},
- {"Shader", l_newShader},
- {"Canvas", l_newCanvas},
- {"Font", l_newFont},
- /**
- * before using box and write
- * must call study to set
- * current font
- */
- {"box", l_box},
- {"write", l_write},
- {"clear", l_clear},
- {"draw", l_draw},
- {"color", l_setColor},
- {"palette", l_getColor},
- {"present", l_present},
- //{"blend", l_setBlend},
- // study font
- {"study", l_study},
- // bind canvas
- {"bind", l_bindCanvas},
- {"unbind", l_unbindCanvas},
- // use shader
- {"use", l_useShader},
- {"unuse", l_unuseShader},
- // draw shapes
- {"point", l_drawpoint},
- {"line", l_drawLine},
- {"rect", l_drawRect},
- {"circle", l_drawCircle},
- {"triangle", l_drawTriangle},
- {"polygon", l_drawPolygon},
- //
- {"destroy", l_destroy},
- {0, 0}
- };
-
- extern int luaopen_Image(lua_State* L);
-
- extern int luaopen_Font(lua_State* L);
-
- extern int luaopen_Canvas(lua_State* L);
-
- extern int luaopen_JSL(lua_State* L);
-
- int luaopen_graphics(lua_State* L)
- {
- // register types
- luaopen_Image(L);
- luaopen_Canvas(L);
- luaopen_Font(L);
- luaopen_JSL(L);
-
- // load whole lib
- luax_newlib(L, f);
-
- return 1;
- }
-
-}// lua
-}// jin
generated by cgit v1.1-26-g67d0 at 2025-05-19 23:41:15 +0000