mirror of
https://github.com/obsproject/obs-studio.git
synced 2024-07-07 03:53:38 +00:00
115 lines
2.8 KiB
C
115 lines
2.8 KiB
C
/******************************************************************************
|
|
Copyright (C) 2013 by Hugh Bailey <obs.jim@gmail.com>
|
|
|
|
This program is free software: you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation, either version 3 of the License, or
|
|
(at your option) any later version.
|
|
|
|
This program is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
******************************************************************************/
|
|
|
|
#include "gl-subsystem.h"
|
|
|
|
static inline bool init_ib(struct gs_index_buffer *ib)
|
|
{
|
|
GLenum usage = ib->dynamic ? GL_DYNAMIC_COPY : GL_STATIC_DRAW;
|
|
bool success;
|
|
|
|
success = gl_create_buffer(GL_ARRAY_BUFFER, &ib->buffer, ib->size,
|
|
ib->data, usage);
|
|
|
|
if (!ib->dynamic) {
|
|
bfree(ib->data);
|
|
ib->data = NULL;
|
|
}
|
|
|
|
return success;
|
|
}
|
|
|
|
indexbuffer_t device_create_indexbuffer(device_t device,
|
|
enum gs_index_type type, void *indices, size_t num,
|
|
uint32_t flags)
|
|
{
|
|
struct gs_index_buffer *ib = bmalloc(sizeof(struct gs_index_buffer));
|
|
size_t width = type == GS_UNSIGNED_LONG ? sizeof(long) : sizeof(short);
|
|
memset(ib, 0, sizeof(struct gs_index_buffer));
|
|
|
|
ib->device = device;
|
|
ib->data = indices;
|
|
ib->dynamic = flags & GS_DYNAMIC;
|
|
ib->num = num;
|
|
ib->width = width;
|
|
ib->size = width * num;
|
|
ib->type = type;
|
|
ib->gl_type = type == GS_UNSIGNED_LONG ? GL_UNSIGNED_INT :
|
|
GL_UNSIGNED_SHORT;
|
|
|
|
if (!init_ib(ib)) {
|
|
blog(LOG_ERROR, "device_create_indexbuffer (GL) failed");
|
|
indexbuffer_destroy(ib);
|
|
return NULL;
|
|
}
|
|
|
|
return ib;
|
|
}
|
|
|
|
void indexbuffer_destroy(indexbuffer_t ib)
|
|
{
|
|
if (ib) {
|
|
if (ib->buffer)
|
|
gl_delete_buffers(1, &ib->buffer);
|
|
|
|
bfree(ib->data);
|
|
bfree(ib);
|
|
}
|
|
}
|
|
|
|
void indexbuffer_flush(indexbuffer_t ib)
|
|
{
|
|
if (!ib->dynamic) {
|
|
blog(LOG_ERROR, "Index buffer is not dynamic");
|
|
goto fail;
|
|
}
|
|
|
|
if (!update_buffer(GL_ARRAY_BUFFER, ib->buffer, ib->data, ib->size))
|
|
goto fail;
|
|
|
|
return;
|
|
|
|
fail:
|
|
blog(LOG_ERROR, "indexbuffer_flush (GL) failed");
|
|
}
|
|
|
|
void *indexbuffer_getdata(indexbuffer_t ib)
|
|
{
|
|
return ib->data;
|
|
}
|
|
|
|
size_t indexbuffer_numindices(indexbuffer_t ib)
|
|
{
|
|
return ib->num;
|
|
}
|
|
|
|
enum gs_index_type indexbuffer_gettype(indexbuffer_t ib)
|
|
{
|
|
return ib->type;
|
|
}
|
|
|
|
void device_load_indexbuffer(device_t device, indexbuffer_t ib)
|
|
{
|
|
if (ib == device->cur_index_buffer)
|
|
return;
|
|
|
|
device->cur_index_buffer = ib;
|
|
|
|
if (!gl_bind_buffer(GL_ELEMENT_ARRAY_BUFFER, ib->buffer))
|
|
blog(LOG_ERROR, "device_load_indexbuffer (GL) failed");
|
|
}
|