56 lines
1.4 KiB
C
56 lines
1.4 KiB
C
#include "./text.h"
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#include <assert.h>
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#include "util/gleasy/program.h"
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#include "util/gleasy/texture.h"
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#include "util/glyphas/drawer.h"
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#include "./uniblock.h"
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#define UNIBLOCK_INDEX_ 0
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void loshader_text_drawer_initialize(
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loshader_text_drawer_t* drawer,
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gleasy_program_t prog,
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const loshader_uniblock_t* uniblock,
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gleasy_texture_2d_t tex) {
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assert(drawer != NULL);
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assert(prog != 0);
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assert(uniblock != NULL);
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assert(tex != 0);
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const GLuint uniblock_index = glGetUniformBlockIndex(prog, "uniblock");
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assert(glGetError() == GL_NO_ERROR);
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glUniformBlockBinding(prog, uniblock_index, UNIBLOCK_INDEX_);
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*drawer = (typeof(*drawer)) {
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.prog = prog,
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.uniblock = uniblock,
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};
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glyphas_drawer_initialize(&drawer->super, tex);
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}
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void loshader_text_drawer_deinitialize(
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loshader_text_drawer_t* drawer) {
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assert(drawer != NULL);
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glyphas_drawer_deinitialize(&drawer->super);
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glDeleteProgram(drawer->prog);
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}
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void loshader_text_drawer_draw(const loshader_text_drawer_t* drawer) {
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assert(drawer != NULL);
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glUseProgram(drawer->prog);
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loshader_text_drawer_draw_without_use_program(drawer);
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}
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void loshader_text_drawer_draw_without_use_program(
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const loshader_text_drawer_t* drawer) {
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assert(drawer != NULL);
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loshader_uniblock_bind(drawer->uniblock, UNIBLOCK_INDEX_);
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glyphas_drawer_draw(&drawer->super);
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}
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