// Copyright (c) 2014, Loïc Hoguin <[email protected]>
//
// Permission to use, copy, modify, and/or distribute this software for any
// purpose with or without fee is hereby granted, provided that the above
// copyright notice and this permission notice appear in all copies.
//
// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
// WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
// MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
// ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
// WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
// ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
// OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
#include "esdl2.h"
void dtor_Renderer(ErlNifEnv* env, void* obj)
{
SDL_DestroyRenderer(NIF_RES_GET(Renderer, obj));
}
#define RENDERER_FLAGS(F) \
F(software, SDL_RENDERER_SOFTWARE) \
F(accelerated, SDL_RENDERER_ACCELERATED) \
F(present_vsync, SDL_RENDERER_PRESENTVSYNC) \
F(target_texture, SDL_RENDERER_TARGETTEXTURE)
NIF_LIST_TO_FLAGS_FUNCTION(list_to_renderer_flags, Uint32, RENDERER_FLAGS)
int map_to_rect(ErlNifEnv* env, ERL_NIF_TERM map, SDL_Rect* rect)
{
ERL_NIF_TERM x, y, w, h;
if (!enif_get_map_value(env, map, atom_x, &x))
return 0;
if (!enif_get_map_value(env, map, atom_y, &y))
return 0;
if (!enif_get_map_value(env, map, atom_w, &w))
return 0;
if (!enif_get_map_value(env, map, atom_h, &h))
return 0;
if (!enif_get_int(env, x, &rect->x))
return 0;
if (!enif_get_int(env, y, &rect->y))
return 0;
if (!enif_get_int(env, w, &rect->w))
return 0;
if (!enif_get_int(env, h, &rect->h))
return 0;
return 1;
}
// create_renderer
NIF_CALL_HANDLER(thread_create_renderer)
{
SDL_Renderer* renderer;
ERL_NIF_TERM term;
renderer = SDL_CreateRenderer(args[0], (long)args[1], (long)args[2]);
if (!renderer)
return sdl_error_tuple(env);
NIF_RES_TO_TERM(Renderer, renderer, term);
return enif_make_tuple2(env,
atom_ok,
term
);
}
NIF_FUNCTION(create_renderer)
{
void* window_res;
int index;
Uint32 flags = 0;
BADARG_IF(!enif_get_resource(env, argv[0], res_Window, &window_res));
BADARG_IF(!enif_get_int(env, argv[1], &index));
BADARG_IF(!list_to_renderer_flags(env, argv[2], &flags));
return nif_thread_call(env, thread_create_renderer, 3,
NIF_RES_GET(Window, window_res), index, flags);
}
// render_clear
NIF_CALL_HANDLER(thread_render_clear)
{
if (SDL_RenderClear(args[0]))
return sdl_error_tuple(env);
return atom_ok;
}
NIF_FUNCTION(render_clear)
{
void* renderer_res;
BADARG_IF(!enif_get_resource(env, argv[0], res_Renderer, &renderer_res));
return nif_thread_call(env, thread_render_clear, 1,
NIF_RES_GET(Renderer, renderer_res));
}
// render_copy
NIF_CALL_HANDLER(thread_render_copy)
{
int ret = SDL_RenderCopy(args[0], args[1], args[2], args[3]);
enif_free(args[2]);
enif_free(args[3]);
if (ret)
return sdl_error_tuple(env);
return atom_ok;
}
NIF_FUNCTION(render_copy)
{
void* renderer_res;
void* texture_res;
SDL_Rect *srcPtr, *dstPtr;
BADARG_IF(!enif_get_resource(env, argv[0], res_Renderer, &renderer_res));
BADARG_IF(!enif_get_resource(env, argv[1], res_Texture, &texture_res));
if (enif_is_identical(argv[2], atom_undefined))
srcPtr = NULL;
else {
BADARG_IF(!enif_is_map(env, argv[2]));
srcPtr = (SDL_Rect*)enif_alloc(sizeof(SDL_Rect));
if (!map_to_rect(env, argv[2], srcPtr))
return enif_make_badarg(env);
}
if (enif_is_identical(argv[3], atom_undefined))
dstPtr = NULL;
else {
BADARG_IF(!enif_is_map(env, argv[3]));
dstPtr = (SDL_Rect*)enif_alloc(sizeof(SDL_Rect));
if (!map_to_rect(env, argv[3], dstPtr))
return enif_make_badarg(env);
}
return nif_thread_call(env, thread_render_copy, 4,
NIF_RES_GET(Renderer, renderer_res), NIF_RES_GET(Texture, texture_res), srcPtr, dstPtr);
}
// render_present
NIF_CAST_HANDLER(thread_render_present)
{
SDL_RenderPresent(args[0]);
}
NIF_FUNCTION(render_present)
{
void* renderer_res;
BADARG_IF(!enif_get_resource(env, argv[0], res_Renderer, &renderer_res));
return nif_thread_cast(env, thread_render_present, 1,
NIF_RES_GET(Renderer, renderer_res));
}
// render_set_logical_size
NIF_CALL_HANDLER(thread_render_set_logical_size)
{
if (SDL_RenderSetLogicalSize(args[0], (long)args[1], (long)args[2]))
return sdl_error_tuple(env);
return atom_ok;
}
NIF_FUNCTION(render_set_logical_size)
{
void* renderer_res;
int w, h;
BADARG_IF(!enif_get_resource(env, argv[0], res_Renderer, &renderer_res));
BADARG_IF(!enif_get_int(env, argv[1], &w));
BADARG_IF(!enif_get_int(env, argv[2], &h));
return nif_thread_call(env, thread_render_set_logical_size, 3,
NIF_RES_GET(Renderer, renderer_res), w, h);
}
// set_render_draw_color
NIF_CALL_HANDLER(thread_set_render_draw_color)
{
if (SDL_SetRenderDrawColor(args[0], (long)args[1], (long)args[2], (long)args[3], (long)args[4]))
return sdl_error_tuple(env);
return atom_ok;
}
NIF_FUNCTION(set_render_draw_color)
{
void* renderer_res;
int r, g, b, a;
BADARG_IF(!enif_get_resource(env, argv[0], res_Renderer, &renderer_res));
BADARG_IF(!enif_get_int(env, argv[1], &r));
BADARG_IF(!enif_get_int(env, argv[2], &g));
BADARG_IF(!enif_get_int(env, argv[3], &b));
BADARG_IF(!enif_get_int(env, argv[4], &a));
BADARG_IF(r < 0 || r > 255 || g < 0 || g > 255
|| b < 0 || b > 255 || a < 0 || a > 255);
return nif_thread_call(env, thread_set_render_draw_color, 5,
NIF_RES_GET(Renderer, renderer_res), r, g, b, a);
}