Collaboration diagram for LG_Env:

[legend]

Data Fields
int	sdl_display

SDL_DisplayMode	sdl_display_mode

int	sdl_convert_surf_format

int	sdl_create_rgb_surf_bitdepth

int	r_size

int	g_size

int	b_size

int	a_size

uint32_t	r_mask

uint32_t	g_mask

uint32_t	b_mask

uint32_t	a_mask

int	screen_w

int	screen_h

SDL_Window *	gl_win

SDL_GLContext	gl_context

int	gles_maj_v

int	gles_min_v

int	top_win_logical_w

int	top_win_logical_h

Rec2Di	viewport_rect

zboolean	fullscreen

float	fullscreen_scale

int	max_combined_texture_image_units

int	max_texture_size

int	max_cubemap_texture_size

LG_Texture *	bg_uniq_tex

LG_Color_u	bg_color

int	bg_shift_x

int	bg_shift_y

char *	app_name

char *	app_cmd

char *	org_name_android

char *	app_name_android

char *	assets_dir

char *	app_wr_dir

char *	vbo_cache

char *	obj_cache

zboolean	enable_mouse

zboolean	oes_vao_extension

void(*	glGenVertexArraysOES )(GLsizei, GLuint *)

void(*	glBindVertexArrayOES )(GLuint)

void(*	glDeleteVertexArraysOES )(GLsizei, const GLuint *)

void(*	glIsVertexArrayOES )(GLuint)

zboolean	oes_element_index_uint_extension

zboolean	ext_draw_instanced_extension

zboolean	ext_texcompr_s3tc_extension

zboolean	oes_texcompr_etc1_rgb8_extension

zboolean	khr_texcompr_astc_ldr_extension

LG_ErrorContext	last_error_context

float	luminosity_k

LG_Sound **	sounds

Detailed Description

=== LibGame environnement struct ===

This is also a spec that the code is supposed to implement (should be like that for all comments).

=== LibGame 2D coords sys ===

Usually = SDL coords sys (y axis goes down) != OpenGL coords sys (y axis goes up)
SDL uses int's in [0 - win_w] x [0 - win_h] with origin at top left corner
OpenGL uses float's in [-1.0f, 1.0f] x [-1.0f, 1.0f] with origin at center
OpenGL win uses int's in [0 - gl_win w] x [0 - gl_win h] with origin at bottom left corner (-> glViewport() and glScissor() coords sys is (0, 0) = bottom-left, in pixels)

To avoid endless confusion, always mention 2D coords sys in func definition

The documentation for this struct was generated from the following file: