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LEFTONE/core/loshader/fog.c

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#include "./fog.h"
#include <assert.h>
#include "util/gleasy/program.h"
#include "util/math/vector.h"
#include "core/locommon/position.h"
#include "./single.h"
#include "./uniblock.h"
/* resources */
#include "core/loshader/anysrc/header.shader.h"
#include "core/loshader/anysrc/fog.vshader.h"
#include "core/loshader/anysrc/fog.fshader.h"
#define PRIMITIVE_COUNT_ 6
#pragma pack(push, 1)
typedef struct {
float type;
float prev_type;
float transition;
float bounds_fog;
vec4_t bounds_pos;
vec2_t bounds_size;
} loshader_fog_drawer_internal_param_t;
#pragma pack(pop)
_Static_assert(
sizeof(float)*10 ==
sizeof(loshader_fog_drawer_internal_param_t),
"recheck the type has no padding");
void loshader_fog_drawer_initialize(
loshader_fog_drawer_t* drawer,
const loshader_uniblock_t* uniblock) {
assert(drawer != NULL);
assert(uniblock != NULL);
const gleasy_program_t prog = gleasy_program_new(
loshader_header_shader_, sizeof(loshader_header_shader_),
loshader_fog_vshader_, sizeof(loshader_fog_vshader_),
loshader_fog_fshader_, sizeof(loshader_fog_fshader_));
loshader_single_drawer_initialize(
&drawer->super,
prog,
uniblock,
sizeof(loshader_fog_drawer_internal_param_t));
}
void loshader_fog_drawer_set_param(
loshader_fog_drawer_t* drawer,
const loshader_fog_drawer_param_t* param) {
assert(drawer != NULL);
assert(param != NULL);
const loshader_fog_drawer_internal_param_t p = {
.type = param->type,
.prev_type = param->prev_type,
.transition = param->transition,
.bounds_fog = param->bounds_fog,
.bounds_pos = vec4(
param->bounds_pos.chunk.x,
param->bounds_pos.chunk.y,
param->bounds_pos.fract.x,
param->bounds_pos.fract.y),
.bounds_size = param->bounds_size,
};
loshader_single_drawer_set_param(&drawer->super, &p);
}
void loshader_fog_drawer_draw(const loshader_fog_drawer_t* drawer) {
assert(drawer != NULL);
loshader_single_drawer_draw(&drawer->super, PRIMITIVE_COUNT_);
}