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9f595f3a80
Using the GL renderer for color conversion will make sure screenshots will use the same conversion as normal video rendering. It can do this for all types of screenshots. The logic when to write 16 bit PNGs changes. To approximate the old behavior, we decide by looking whether the source video format has more than 8 bits per component. We apply this logic even for window screenshots. Also, 16 bit PNGs now always include an unused alpha channel. The reason is that FFmpeg has RGB48 and RGBA64 formats, but no RGB064. RGB48 is 3 bytes and usually not supported by GPUs for rendering, so we have to use RGBA64, which forces an alpha channel. Will break for users who use --target-trc and similar options. I considered creating a new gl_video context, but it could double GPU memory use, so I didn't. This uses FBOs instead of glGetTexImage(), because that increases the chance it could work on GLES (e.g. ANGLE). Untested. No support for the Vulkan and D3D11 backends yet. Fixes #5498. Also fixes #5240, because the code for reading back is not used with the new code path.
58 lines
1.9 KiB
C
58 lines
1.9 KiB
C
/*
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* This file is part of mpv.
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* Parts based on MPlayer code by Reimar Döffinger.
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*
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* mpv is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* mpv 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 Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with mpv. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef MP_GL_UTILS_
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#define MP_GL_UTILS_
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#include <math.h>
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#include "video/out/gpu/utils.h"
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#include "common.h"
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struct mp_log;
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void gl_check_error(GL *gl, struct mp_log *log, const char *info);
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void gl_upload_tex(GL *gl, GLenum target, GLenum format, GLenum type,
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const void *dataptr, int stride,
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int x, int y, int w, int h);
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bool gl_read_fbo_contents(GL *gl, int fbo, int dir, GLenum format, GLenum type,
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int w, int h, uint8_t *dst, int dst_stride);
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struct gl_vao {
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GL *gl;
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GLuint vao; // the VAO object, or 0 if unsupported by driver
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GLuint buffer; // GL_ARRAY_BUFFER used for the data
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int stride; // size of each element (interleaved elements are assumed)
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const struct ra_renderpass_input *entries;
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int num_entries;
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};
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void gl_vao_init(struct gl_vao *vao, GL *gl, int stride,
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const struct ra_renderpass_input *entries,
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int num_entries);
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void gl_vao_uninit(struct gl_vao *vao);
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void gl_vao_draw_data(struct gl_vao *vao, GLenum prim, void *ptr, size_t num);
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void gl_set_debug_logger(GL *gl, struct mp_log *log);
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bool gl_check_extension(const char *extensions, const char *ext);
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#endif
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