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f53df7da64
Code submissions have continually suffered from formatting inconsistencies that constantly have to be addressed. Using clang-format simplifies this by making code formatting more consistent, and allows automation of the code formatting so that maintainers can focus more on the code itself instead of code formatting.
120 lines
2.9 KiB
C
120 lines
2.9 KiB
C
/******************************************************************************
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Copyright (C) 2013 by Hugh Bailey <obs.jim@gmail.com>
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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******************************************************************************/
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#include "gl-subsystem.h"
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static inline bool init_ib(struct gs_index_buffer *ib)
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{
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GLenum usage = ib->dynamic ? GL_DYNAMIC_DRAW : GL_STATIC_DRAW;
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bool success;
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success = gl_create_buffer(GL_ELEMENT_ARRAY_BUFFER, &ib->buffer,
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ib->size, ib->data, usage);
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if (!ib->dynamic) {
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bfree(ib->data);
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ib->data = NULL;
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}
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return success;
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}
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gs_indexbuffer_t *device_indexbuffer_create(gs_device_t *device,
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enum gs_index_type type,
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void *indices, size_t num,
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uint32_t flags)
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{
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struct gs_index_buffer *ib = bzalloc(sizeof(struct gs_index_buffer));
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size_t width = type == GS_UNSIGNED_LONG ? 4 : 2;
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ib->device = device;
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ib->data = indices;
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ib->dynamic = flags & GS_DYNAMIC;
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ib->num = num;
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ib->width = width;
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ib->size = width * num;
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ib->type = type;
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ib->gl_type = type == GS_UNSIGNED_LONG ? GL_UNSIGNED_INT
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: GL_UNSIGNED_SHORT;
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if (!init_ib(ib)) {
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blog(LOG_ERROR, "device_indexbuffer_create (GL) failed");
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gs_indexbuffer_destroy(ib);
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return NULL;
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}
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return ib;
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}
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void gs_indexbuffer_destroy(gs_indexbuffer_t *ib)
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{
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if (ib) {
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if (ib->buffer)
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gl_delete_buffers(1, &ib->buffer);
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bfree(ib->data);
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bfree(ib);
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}
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}
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static inline void gs_indexbuffer_flush_internal(gs_indexbuffer_t *ib,
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const void *data)
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{
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if (!ib->dynamic) {
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blog(LOG_ERROR, "Index buffer is not dynamic");
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goto fail;
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}
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if (!update_buffer(GL_ELEMENT_ARRAY_BUFFER, ib->buffer, data, ib->size))
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goto fail;
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return;
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fail:
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blog(LOG_ERROR, "gs_indexbuffer_flush (GL) failed");
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}
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void gs_indexbuffer_flush(gs_indexbuffer_t *ib)
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{
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gs_indexbuffer_flush_internal(ib, ib->data);
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}
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void gs_indexbuffer_flush_direct(gs_indexbuffer_t *ib, const void *data)
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{
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gs_indexbuffer_flush_internal(ib, data);
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}
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void *gs_indexbuffer_get_data(const gs_indexbuffer_t *ib)
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{
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return ib->data;
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}
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size_t gs_indexbuffer_get_num_indices(const gs_indexbuffer_t *ib)
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{
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return ib->num;
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}
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enum gs_index_type gs_indexbuffer_get_type(const gs_indexbuffer_t *ib)
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{
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return ib->type;
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}
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void device_load_indexbuffer(gs_device_t *device, gs_indexbuffer_t *ib)
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{
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device->cur_index_buffer = ib;
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}
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