102 lines
2.8 KiB
C
102 lines
2.8 KiB
C
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int buf_init_int(byte dynamic, uint *vbo, uint *vao, const float *verts, uint size, int stride, va_list ap) {
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int elems;
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int pos;
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int idx = 0;
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glGenVertexArrays(1, vao);
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glGenBuffers(1, vbo);
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glBindBuffer(GL_ARRAY_BUFFER, *vbo);
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glBufferData(GL_ARRAY_BUFFER, size, verts, dynamic ? GL_DYNAMIC_DRAW : GL_STATIC_DRAW);
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gdr.buf_mem += size;
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gdr.buf_peak = gdr.buf_mem > gdr.buf_peak ? gdr.buf_mem : gdr.buf_peak;
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glBindVertexArray(*vao);
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for(pos = 0; pos < stride; pos += elems) {
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elems = va_arg(ap, int);
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glVertexAttribPointer(idx, elems, GL_FLOAT, GL_FALSE, stride * sizeof(float), (void*)(pos * sizeof(float)));
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glEnableVertexAttribArray(idx++);
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}
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glBindBuffer(GL_ARRAY_BUFFER, 0);
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return idx;
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}
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void buf_init_sys(uint *vbo, uint *vao, const float *verts, uint size, int stride, ...) {
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va_list ap;
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va_start(ap, stride);
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buf_init_int(0, vbo, vao, verts, size, stride, ap);
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logd(LOG_GFX, STR_BUF_ILOADED, size, stride, *vbo, *vao);
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va_end(ap);
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}
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buf_t *buf_init(byte dynamic, uint *vbo, uint *vao, const float *verts, uint size, int stride, ...) {
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va_list ap;
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va_start(ap, stride);
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int idx;
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buf_t *bind;
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sys_assert(bind = (buf_t*)tbl_push(&gdr.buffers));
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idx = buf_init_int(dynamic, vbo, vao, verts, size, stride, ap);
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bind->vao = vao;
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bind->vbo = vbo;
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bind->size = size;
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bind->stride = stride;
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bind->groups = idx;
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bind->dynamic = dynamic;
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gdr.buf_loaded += 1;
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logt(LOG_GFX, STR_BUF_LOADED, size, stride, *vbo, *vao);
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va_end(ap);
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return bind;
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}
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void buf_data(buf_t *buf, const float *verts, uint size) {
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size *= ((uint)buf->stride) * sizeof(float);
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glBindBuffer(GL_ARRAY_BUFFER, *(buf->vbo));
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glBufferData(GL_ARRAY_BUFFER, size, verts, buf->dynamic ? GL_DYNAMIC_DRAW : GL_STATIC_DRAW);
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glBindBuffer(GL_ARRAY_BUFFER, 0);
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if(buf->size != size) {
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logt(LOG_GFX, STR_BUF_RESIZED, *(buf->vbo), *(buf->vao), buf->size, size, buf->stride);
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gdr.buf_mem -= buf->size;
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gdr.buf_mem += buf->size = size;
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gdr.buf_peak = gdr.buf_mem > gdr.buf_peak ? gdr.buf_mem : gdr.buf_peak;
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}
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}
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void buf_delete(uint *vbo, uint *vao) {
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if(*vbo) {
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glDeleteBuffers(1, vbo);
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glDeleteVertexArrays(1, vao);
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logd(LOG_GFX, STR_BUF_IUNLOADED, *vbo, *vao);
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*vbo = 0;
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*vao = 0;
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}
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}
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byte buf_unload(buf_t *buf) {
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if(!(*(buf->vbo))) {
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return 0;
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}
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glDeleteBuffers(1, buf->vbo);
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glDeleteVertexArrays(1, buf->vao);
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gdr.buf_mem -= buf->size;
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logt(LOG_GFX, STR_BUF_UNLOADED, buf->size, buf->stride, *(buf->vbo), *(buf->vao));
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*(buf->vbo) = 0;
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*(buf->vao) = 0;
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return 1;
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}
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void buf_remove(buf_t *buf) {
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if(buf_unload(buf)) {
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// tbl_pop(&gdr.buffers, buf);
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gdr.buf_loaded -= 1;
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}
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}
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void buf_destroy(buf_t *buf) {
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if(buf_unload(buf)) {
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tbl_pop(&gdr.buffers, buf);
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gdr.buf_loaded -= 1;
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}
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}
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int buf_clear() {
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return tbl_clear_func(&gdr.buffers, (clear_func*)buf_remove);
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}
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