68 lines
1.7 KiB
C
68 lines
1.7 KiB
C
#include "./pixsort.h"
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#include <assert.h>
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#include <stddef.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <GL/glew.h>
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#include "util/gleasy/framebuffer.h"
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#include "util/gleasy/program.h"
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#include "./single.h"
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#include "./uniblock.h"
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/* resources */
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#include "core/loshader/anysrc/header.shader.h"
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#include "core/loshader/anysrc/pixsort.vshader.h"
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#include "core/loshader/anysrc/pixsort.fshader.h"
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#define UNIFORM_SRC_ 0
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#define UNIFORM_INTENSITY_ 1
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#define PRIMITIVE_COUNT_ 6
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void loshader_pixsort_drawer_initialize(
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loshader_pixsort_drawer_t* drawer,
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const loshader_uniblock_t* uniblock,
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const gleasy_framebuffer_t* fb) {
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assert(drawer != NULL);
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assert(uniblock != NULL);
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assert(fb != NULL);
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*drawer = (typeof(*drawer)) {
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.fb = fb,
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};
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const gleasy_program_t prog = gleasy_program_new(
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loshader_header_shader_, sizeof(loshader_header_shader_),
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loshader_pixsort_vshader_, sizeof(loshader_pixsort_vshader_),
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loshader_pixsort_fshader_, sizeof(loshader_pixsort_fshader_));
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loshader_single_drawer_initialize(&drawer->super, prog, uniblock, 0);
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}
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void loshader_pixsort_drawer_draw(
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const loshader_pixsort_drawer_t* drawer) {
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assert(drawer != NULL);
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glUseProgram(drawer->super.prog);
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glActiveTexture(GL_TEXTURE0);
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glBindTexture(GL_TEXTURE_2D, drawer->fb->colorbuf);
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glUniform1i(UNIFORM_SRC_, 0);
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glUniform1f(UNIFORM_INTENSITY_, drawer->intensity);
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loshader_single_drawer_draw_without_use_program(
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&drawer->super, PRIMITIVE_COUNT_);
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}
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bool loshader_pixsort_drawer_is_skippable(
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const loshader_pixsort_drawer_t* drawer) {
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assert(drawer != NULL);
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return drawer->intensity == 0;
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}
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