96 lines
2.5 KiB
C
96 lines
2.5 KiB
C
#include "./hud_text.h"
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#include <assert.h>
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#include <stddef.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/block.h"
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#include "util/glyphas/drawer.h"
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#include "./uniblock.h"
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/* resources */
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#include "anysrc/header.shader.h"
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#include "anysrc/hud_text.vshader.h"
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#include "anysrc/hud_text.fshader.h"
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#define LOSHADER_HUD_TEXT_UNIFORM_ALPHA 1
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#define LOSHADER_HUD_TEXT_UNIBLOCK_INDEX 0
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void loshader_hud_text_program_initialize(loshader_hud_text_program_t* prog) {
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assert(prog != NULL);
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*prog = gleasy_program_new(
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loshader_header_shader_, sizeof(loshader_header_shader_),
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loshader_hud_text_vshader_, sizeof(loshader_hud_text_vshader_),
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loshader_hud_text_fshader_, sizeof(loshader_hud_text_fshader_));
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const GLuint uniblock = glGetUniformBlockIndex(*prog, "uniblock");
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assert(glGetError() == GL_NO_ERROR);
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glUniformBlockBinding(*prog, uniblock, LOSHADER_HUD_TEXT_UNIBLOCK_INDEX);
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}
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void loshader_hud_text_program_deinitialize(loshader_hud_text_program_t* prog) {
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assert(prog != NULL);
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glDeleteProgram(*prog);
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}
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void loshader_hud_text_drawer_initialize(
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loshader_hud_text_drawer_t* drawer,
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const loshader_hud_text_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 != NULL);
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assert(uniblock != NULL);
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assert(tex != 0);
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*drawer = (typeof(*drawer)) {
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.prog = prog,
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.uniblock = uniblock,
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.tex = tex,
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.glyphas = glyphas_drawer_new(),
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.alpha = 1,
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};
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}
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void loshader_hud_text_drawer_deinitialize(
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loshader_hud_text_drawer_t* drawer) {
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assert(drawer != NULL);
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glyphas_drawer_delete(drawer->glyphas);
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}
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void loshader_hud_text_drawer_clear(
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loshader_hud_text_drawer_t* drawer, size_t reserve) {
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assert(drawer != NULL);
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assert(reserve > 0);
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glyphas_drawer_clear(drawer->glyphas, drawer->tex, reserve);
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}
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void loshader_hud_text_drawer_add_block(
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loshader_hud_text_drawer_t* drawer, const glyphas_block_t* block) {
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assert(drawer != NULL);
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assert(block != NULL);
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glyphas_drawer_add_block(drawer->glyphas, block);
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}
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void loshader_hud_text_drawer_draw(const loshader_hud_text_drawer_t* drawer) {
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assert(drawer != NULL);
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glUseProgram(*drawer->prog);
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loshader_uniblock_bind(drawer->uniblock, LOSHADER_HUD_TEXT_UNIBLOCK_INDEX);
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glUniform1f(LOSHADER_HUD_TEXT_UNIFORM_ALPHA, drawer->alpha);
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glyphas_drawer_draw(drawer->glyphas);
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}
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