;
;    Raw Game Engine
;    Copyright (C) 2023  Ernest Deak
;
;    This program is free software: you can redistribute it and/or modify
;    it under the terms of the GNU General Public License as published by
;    the Free Software Foundation, either version 3 of the License, or
;    (at your option) any later version.
;
;    This program 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 General Public License for more details.
;
;    You should have received a copy of the GNU General Public License
;    along with this program.  If not, see <https://www.gnu.org/licenses/>.
;

%ifndef SDL2_MAC
%define SDL2_MAC

; All functions can be directly called via the `exmcall` pseudo instruction
; there is therefore no need to define them here, so only names are included
; with brief documentation

; The following code is mostly taken from SDL2/*.h header files located usually
; in /usr/include/SDL2/
; The constants and enums have been modified to suit the macro/constant
; definitions required by NASM. Constants were directly taken from the headers
; and only slightly modified.
; See the actual SDL2 headers for full documentation, descriptions and license

%define SDL_INIT_VIDEO 0x00000020
%define SDL_WINDOW_SHOWN 0x00000004,

struc SDL_rect
	.x resd 1
	.y resd 1
	.w resd 1
	.h resd 1
endstruc

struc SDL_frect
	.x_float resd 1
	.y_float resd 1
	.w_float resd 1
	.h_float resd 1
endstruc

defstruct_shortcuts SDL_rect
defstruct_shortcuts SDL_frect

; SDL2 SDL_image related
%define IMG_INIT_JPG    0x00000001
%define IMG_INIT_PNG    0x00000002
%define IMG_INIT_TIF    0x00000004
%define IMG_INIT_WEBP   0x00000008
%define IMG_INIT_JXL    0x00000010
%define IMG_INIT_AVIF   0x00000020


;;/* RWops Types */
; copied from SDL_rwops.h
; SDL2 Licensing applies, for the full license see your source distribution
; of SDL2 (usually located in /usr/include/SDL2 or /usr/local/include/SDL2 on linux)
; Additional documentation can be found there as well
%define SDL_RWOPS_UNKNOWN   0U  ;;/**< Unknown stream type */
%define SDL_RWOPS_WINFILE   1U  ;;/**< Win32 file */
%define SDL_RWOPS_STDFILE   2U  ;;/**< Stdio file */
%define SDL_RWOPS_JNIFILE   3U  ;;/**< Android asset */
%define SDL_RWOPS_MEMORY    4U  ;;/**< Memory stream */
%define SDL_RWOPS_MEMORY_RO 5U  ;;/**< Read-Only memory stream */

; Any macros or definitions provided here are either for simplification,
; ease of use, just testing or pure convenience. Anything should work with the exmcall macro.

; Calling SDL2 functions or SDL2 plugin functions (like SDL2_image):
; IMG_LoadTexture(SDL_Renderer *rend, const char* file);
; 	exmcall IMG_LoadTexture, <renderer_ptr>, "path/to/file.png"
; 			- for using with SDL2's rendering API via GPU instead of CPU
; 	returns SDL_Texture*
; Dispose of it after we are done with it with SDL_DestroyTexture(tex*)
; 	exmcall SDL_DestroyTexture, <tex>

; Convenience defines
;%define IMG_LoadTexture(rend, filename) exmcall rend, filename
;%define SDL_DestroyTexture(tex) exmcall tex

; Pixel formats, figured out via a .c file with printf of desired enum
SDL_PIXELFORMAT_ARGB4444 equ 0x15321002  ; 32bit little endian
SDL_PIXELFORMAT_RGBA32 equ 0x16762004

; Texture access

enum 0,\
    SDL_TEXTUREACCESS_STATIC,\
    SDL_TEXTUREACCESS_STREAMING,\
    SDL_TEXTUREACCESS_TARGET


%include "inc/sdl2_keys.inc"
%include "inc/sdl2_event.inc"

%endif

.