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c9df41c1e2
Typedef pointers are unsafe. If you do: typedef struct bla *bla_t; then you cannot use it as a constant, such as: const bla_t, because that constant will be to the pointer itself rather than to the underlying data. I admit this was a fundamental mistake that must be corrected. All typedefs that were pointer types will now have their pointers removed from the type itself, and the pointers will be used when they are actually used as variables/parameters/returns instead. This does not break ABI though, which is pretty nice.
81 lines
2.3 KiB
C
81 lines
2.3 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 bool gl_init_zsbuffer(struct gs_zstencil_buffer *zs, uint32_t width,
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uint32_t height)
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{
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glGenRenderbuffers(1, &zs->buffer);
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if (!gl_success("glGenRenderbuffers"))
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return false;
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if (!gl_bind_renderbuffer(GL_RENDERBUFFER, zs->buffer))
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return false;
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glRenderbufferStorage(GL_RENDERBUFFER, zs->format, width, height);
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if (!gl_success("glRenderbufferStorage"))
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return false;
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gl_bind_renderbuffer(GL_RENDERBUFFER, 0);
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return true;
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}
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static inline GLenum get_attachment(enum gs_zstencil_format format)
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{
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switch (format) {
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case GS_Z16: return GL_DEPTH_ATTACHMENT;
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case GS_Z24_S8: return GL_DEPTH_STENCIL_ATTACHMENT;
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case GS_Z32F: return GL_DEPTH_ATTACHMENT;
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case GS_Z32F_S8X24: return GL_DEPTH_STENCIL_ATTACHMENT;
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case GS_ZS_NONE: return 0;
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}
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return 0;
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}
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gs_zstencil_t *device_zstencil_create(gs_device_t *device, uint32_t width,
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uint32_t height, enum gs_zstencil_format format)
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{
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struct gs_zstencil_buffer *zs;
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zs = bzalloc(sizeof(struct gs_zstencil_buffer));
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zs->format = convert_zstencil_format(format);
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zs->attachment = get_attachment(format);
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zs->device = device;
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if (!gl_init_zsbuffer(zs, width, height)) {
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blog(LOG_ERROR, "device_zstencil_create (GL) failed");
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gs_zstencil_destroy(zs);
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return NULL;
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}
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return zs;
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}
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void gs_zstencil_destroy(gs_zstencil_t *zs)
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{
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if (zs) {
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if (zs->buffer) {
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glDeleteRenderbuffers(1, &zs->buffer);
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gl_success("glDeleteRenderbuffers");
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}
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bfree(zs);
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}
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}
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