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Dekker" To: ffmpeg-devel@ffmpeg.org Date: Sun, 4 Feb 2024 10:02:33 +0100 Message-ID: <20240204090233.1157950-3-jdek@itanimul.li> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240204090233.1157950-1-jdek@itanimul.li> References: <20240204090233.1157950-1-jdek@itanimul.li> MIME-Version: 1.0 Subject: [FFmpeg-devel] [PATCH 2/2] avdevice: remove OpenGL device X-BeenThere: ffmpeg-devel@ffmpeg.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: FFmpeg development discussions and patches List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: FFmpeg development discussions and patches Errors-To: ffmpeg-devel-bounces@ffmpeg.org Sender: "ffmpeg-devel" X-TUID: mkYvVfnjZVuL Signed-off-by: J. Dekker --- MAINTAINERS | 1 - configure | 15 - doc/outdevs.texi | 39 -- libavdevice/Makefile | 1 - libavdevice/alldevices.c | 1 - libavdevice/opengl_enc.c | 1313 -------------------------------------- 6 files changed, 1370 deletions(-) delete mode 100644 libavdevice/opengl_enc.c diff --git a/MAINTAINERS b/MAINTAINERS index baead5d270..c816be66ed 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -290,7 +290,6 @@ libavdevice iec61883.c Georg Lippitsch lavfi Stefano Sabatini libdc1394.c Roman Shaposhnik - opengl_enc.c Lukasz Marek pulse_audio_enc.c Lukasz Marek v4l2.c Giorgio Vazzana vfwcap.c Ramiro Polla diff --git a/configure b/configure index c4eebab14f..d97b9eedcc 100755 --- a/configure +++ b/configure @@ -317,7 +317,6 @@ External library support: --enable-libmysofa enable libmysofa, needed for sofalizer filter [no] --enable-openal enable OpenAL 1.1 capture support [no] --enable-opencl enable OpenCL processing [no] - --enable-opengl enable OpenGL rendering [no] --enable-openssl enable openssl, needed for https support if gnutls, libtls or mbedtls is not used [no] --enable-pocketsphinx enable PocketSphinx, needed for asr filter [no] @@ -1917,7 +1916,6 @@ EXTERNAL_LIBRARY_LIST=" lv2 mediacodec openal - opengl openssl pocketsphinx vapoursynth @@ -2237,7 +2235,6 @@ HEADERS_LIST=" machine_ioctl_meteor_h malloc_h opencv2_core_core_c_h - OpenGL_gl3_h poll_h sys_param_h sys_resource_h @@ -3629,8 +3626,6 @@ lavfi_indev_deps="avfilter" libcdio_indev_deps="libcdio" libdc1394_indev_deps="libdc1394" openal_indev_deps="openal" -opengl_outdev_deps="opengl" -opengl_outdev_suggest="sdl2" oss_indev_deps_any="sys_soundcard_h" oss_outdev_deps_any="sys_soundcard_h" pulse_indev_deps="libpulse" @@ -6952,12 +6947,6 @@ enabled opencl && { check_pkg_config opencl OpenCL CL/cl.h clEnqueueN { test_cpp_condition "OpenCL/cl.h" "defined(CL_VERSION_1_2)" || test_cpp_condition "CL/cl.h" "defined(CL_VERSION_1_2)" || die "ERROR: opencl must be installed and version must be 1.2 or compatible"; } -enabled opengl && { check_lib opengl GL/glx.h glXGetProcAddress "-lGL" || - check_lib opengl windows.h wglGetProcAddress "-lopengl32 -lgdi32" || - check_lib opengl OpenGL/gl3.h glGetError "-Wl,-framework,OpenGL" || - check_lib opengl ES2/gl.h glGetError "-isysroot=${sysroot} -Wl,-framework,OpenGLES" || - die "ERROR: opengl not found." - } enabled omx_rpi && { test_code cc OMX_Core.h OMX_IndexConfigBrcmVideoRequestIFrame || { ! enabled cross_compile && add_cflags -isystem/opt/vc/include/IL && @@ -7708,10 +7697,6 @@ enabled zoompan_filter && prepend avfilter_deps "swscale" enabled lavfi_indev && prepend avdevice_deps "avfilter" -#FIXME -enabled_any opengl_outdev && enabled sdl2 && - add_cflags $(filter_out '-Dmain=SDL_main' $sdl2_cflags) - enabled opus_decoder && prepend avcodec_deps "swresample" # reorder the items at var $1 to align with the items order at var $2 . diff --git a/doc/outdevs.texi b/doc/outdevs.texi index d3b9199463..86c78f31b7 100644 --- a/doc/outdevs.texi +++ b/doc/outdevs.texi @@ -301,45 +301,6 @@ ffmpeg -re -i INPUT -c:v rawvideo -pix_fmt bgra -f fbdev /dev/fb0 See also @url{http://linux-fbdev.sourceforge.net/}, and fbset(1). -@section opengl -OpenGL output device. - -To enable this output device you need to configure FFmpeg with @code{--enable-opengl}. - -This output device allows one to render to OpenGL context. -Context may be provided by application or default SDL window is created. - -When device renders to external context, application must implement handlers for following messages: -@code{AV_DEV_TO_APP_CREATE_WINDOW_BUFFER} - create OpenGL context on current thread. -@code{AV_DEV_TO_APP_PREPARE_WINDOW_BUFFER} - make OpenGL context current. -@code{AV_DEV_TO_APP_DISPLAY_WINDOW_BUFFER} - swap buffers. -@code{AV_DEV_TO_APP_DESTROY_WINDOW_BUFFER} - destroy OpenGL context. -Application is also required to inform a device about current resolution by sending @code{AV_APP_TO_DEV_WINDOW_SIZE} message. - -@subsection Options -@table @option - -@item background -Set background color. Black is a default. -@item no_window -Disables default SDL window when set to non-zero value. -Application must provide OpenGL context and both @code{window_size_cb} and @code{window_swap_buffers_cb} callbacks when set. -@item window_title -Set the SDL window title, if not specified default to the filename specified for the output device. -Ignored when @option{no_window} is set. -@item window_size -Set preferred window size, can be a string of the form widthxheight or a video size abbreviation. -If not specified it defaults to the size of the input video, downscaled according to the aspect ratio. -Mostly usable when @option{no_window} is not set. - -@end table - -@subsection Examples -Play a file on SDL window using OpenGL rendering: -@example -ffmpeg -i INPUT -f opengl "window title" -@end example - @section oss OSS (Open Sound System) output device. diff --git a/libavdevice/Makefile b/libavdevice/Makefile index 26b2339ae1..ef07945d5b 100644 --- a/libavdevice/Makefile +++ b/libavdevice/Makefile @@ -35,7 +35,6 @@ OBJS-$(CONFIG_JACK_INDEV) += jack.o timefilter.o OBJS-$(CONFIG_KMSGRAB_INDEV) += kmsgrab.o OBJS-$(CONFIG_LAVFI_INDEV) += lavfi.o OBJS-$(CONFIG_OPENAL_INDEV) += openal-dec.o -OBJS-$(CONFIG_OPENGL_OUTDEV) += opengl_enc.o OBJS-$(CONFIG_OSS_INDEV) += oss_dec.o oss.o OBJS-$(CONFIG_OSS_OUTDEV) += oss_enc.o oss.o OBJS-$(CONFIG_PULSE_INDEV) += pulse_audio_dec.o \ diff --git a/libavdevice/alldevices.c b/libavdevice/alldevices.c index 9215be7214..d2554d3533 100644 --- a/libavdevice/alldevices.c +++ b/libavdevice/alldevices.c @@ -41,7 +41,6 @@ extern const AVInputFormat ff_jack_demuxer; extern const AVInputFormat ff_kmsgrab_demuxer; extern const AVInputFormat ff_lavfi_demuxer; extern const AVInputFormat ff_openal_demuxer; -extern const FFOutputFormat ff_opengl_muxer; extern const AVInputFormat ff_oss_demuxer; extern const FFOutputFormat ff_oss_muxer; extern const AVInputFormat ff_pulse_demuxer; diff --git a/libavdevice/opengl_enc.c b/libavdevice/opengl_enc.c deleted file mode 100644 index b2ac6eb16a..0000000000 --- a/libavdevice/opengl_enc.c +++ /dev/null @@ -1,1313 +0,0 @@ -/* - * Copyright (c) 2014 Lukasz Marek - * - * This file is part of FFmpeg. - * - * FFmpeg is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License as published by the Free Software Foundation; either - * version 2.1 of the License, or (at your option) any later version. - * - * FFmpeg 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 - * Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with FFmpeg; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA - */ - -//TODO: support for more formats -//TODO: support for more systems. -//TODO: implement X11, Windows, Mac OS native default window. SDL 1.2 doesn't allow to render to custom thread. - -#include -#include -#include -#include - -#include "config.h" - -#if HAVE_WINDOWS_H -#include -#endif -#if HAVE_OPENGL_GL3_H -#include -#elif HAVE_ES2_GL_H -#include -#else -#include -#include -#endif -#if HAVE_GLXGETPROCADDRESS -#include -#endif - -#if CONFIG_SDL2 -#include -#endif - -#include "libavutil/common.h" -#include "libavutil/frame.h" -#include "libavutil/pixdesc.h" -#include "libavutil/log.h" -#include "libavutil/opt.h" -#include "libavutil/avassert.h" -#include "libavformat/avformat.h" -#include "libavformat/internal.h" -#include "libavformat/mux.h" -#include "libavdevice/avdevice.h" -#include "opengl_enc_shaders.h" - -#ifndef APIENTRY -#define APIENTRY -#endif - -/* FF_GL_RED_COMPONENT is used for planar pixel types. - * Only red component is sampled in shaders. - * On some platforms GL_RED is not available and GL_LUMINANCE have to be used, - * but since OpenGL 3.0 GL_LUMINANCE is deprecated. - * GL_RED produces RGBA = value, 0, 0, 1. - * GL_LUMINANCE produces RGBA = value, value, value, 1. - * Note: GL_INTENSITY may also be used which produce RGBA = value, value, value, value. */ -#if defined(GL_RED) -#define FF_GL_RED_COMPONENT GL_RED -#elif defined(GL_LUMINANCE) -#define FF_GL_RED_COMPONENT GL_LUMINANCE -#else -#define FF_GL_RED_COMPONENT 0x1903; //GL_RED -#endif - -/* Constants not defined for iOS */ -#define FF_GL_UNSIGNED_BYTE_3_3_2 0x8032 -#define FF_GL_UNSIGNED_BYTE_2_3_3_REV 0x8362 -#define FF_GL_UNSIGNED_SHORT_1_5_5_5_REV 0x8366 -#define FF_GL_UNPACK_ROW_LENGTH 0x0CF2 - -/* MinGW exposes only OpenGL 1.1 API */ -#define FF_GL_ARRAY_BUFFER 0x8892 -#define FF_GL_ELEMENT_ARRAY_BUFFER 0x8893 -#define FF_GL_STATIC_DRAW 0x88E4 -#define FF_GL_FRAGMENT_SHADER 0x8B30 -#define FF_GL_VERTEX_SHADER 0x8B31 -#define FF_GL_COMPILE_STATUS 0x8B81 -#define FF_GL_LINK_STATUS 0x8B82 -#define FF_GL_INFO_LOG_LENGTH 0x8B84 -typedef void (APIENTRY *FF_PFNGLACTIVETEXTUREPROC) (GLenum texture); -typedef void (APIENTRY *FF_PFNGLGENBUFFERSPROC) (GLsizei n, GLuint *buffers); -typedef void (APIENTRY *FF_PFNGLDELETEBUFFERSPROC) (GLsizei n, const GLuint *buffers); -typedef void (APIENTRY *FF_PFNGLBUFFERDATAPROC) (GLenum target, ptrdiff_t size, const GLvoid *data, GLenum usage); -typedef void (APIENTRY *FF_PFNGLBINDBUFFERPROC) (GLenum target, GLuint buffer); -typedef GLint (APIENTRY *FF_PFNGLGETATTRIBLOCATIONPROC) (GLuint program, const char *name); -typedef void (APIENTRY *FF_PFNGLENABLEVERTEXATTRIBARRAYPROC) (GLuint index); -typedef void (APIENTRY *FF_PFNGLVERTEXATTRIBPOINTERPROC) (GLuint index, GLint size, GLenum type, GLboolean normalized, GLsizei stride, uintptr_t pointer); -typedef GLint (APIENTRY *FF_PFNGLGETUNIFORMLOCATIONPROC) (GLuint program, const char *name); -typedef void (APIENTRY *FF_PFNGLUNIFORM1FPROC) (GLint location, GLfloat v0); -typedef void (APIENTRY *FF_PFNGLUNIFORM1IPROC) (GLint location, GLint v0); -typedef void (APIENTRY *FF_PFNGLUNIFORMMATRIX4FVPROC) (GLint location, GLsizei count, GLboolean transpose, const GLfloat *value); -typedef GLuint (APIENTRY *FF_PFNGLCREATEPROGRAMPROC) (void); -typedef void (APIENTRY *FF_PFNGLDELETEPROGRAMPROC) (GLuint program); -typedef void (APIENTRY *FF_PFNGLUSEPROGRAMPROC) (GLuint program); -typedef void (APIENTRY *FF_PFNGLLINKPROGRAMPROC) (GLuint program); -typedef void (APIENTRY *FF_PFNGLGETPROGRAMIVPROC) (GLuint program, GLenum pname, GLint *params); -typedef void (APIENTRY *FF_PFNGLGETPROGRAMINFOLOGPROC) (GLuint program, GLsizei bufSize, GLsizei *length, char *infoLog); -typedef void (APIENTRY *FF_PFNGLATTACHSHADERPROC) (GLuint program, GLuint shader); -typedef GLuint (APIENTRY *FF_PFNGLCREATESHADERPROC) (GLenum type); -typedef void (APIENTRY *FF_PFNGLDELETESHADERPROC) (GLuint shader); -typedef void (APIENTRY *FF_PFNGLCOMPILESHADERPROC) (GLuint shader); -typedef void (APIENTRY *FF_PFNGLSHADERSOURCEPROC) (GLuint shader, GLsizei count, const char* *string, const GLint *length); -typedef void (APIENTRY *FF_PFNGLGETSHADERIVPROC) (GLuint shader, GLenum pname, GLint *params); -typedef void (APIENTRY *FF_PFNGLGETSHADERINFOLOGPROC) (GLuint shader, GLsizei bufSize, GLsizei *length, char *infoLog); - -typedef struct FFOpenGLFunctions { - FF_PFNGLACTIVETEXTUREPROC glActiveTexture; //Require GL ARB multitexture - FF_PFNGLGENBUFFERSPROC glGenBuffers; //Require GL_ARB_vertex_buffer_object - FF_PFNGLDELETEBUFFERSPROC glDeleteBuffers; //Require GL_ARB_vertex_buffer_object - FF_PFNGLBUFFERDATAPROC glBufferData; //Require GL_ARB_vertex_buffer_object - FF_PFNGLBINDBUFFERPROC glBindBuffer; //Require GL_ARB_vertex_buffer_object - FF_PFNGLGETATTRIBLOCATIONPROC glGetAttribLocation; //Require GL_ARB_vertex_shader - FF_PFNGLENABLEVERTEXATTRIBARRAYPROC glEnableVertexAttribArray; //Require GL_ARB_vertex_shader - FF_PFNGLVERTEXATTRIBPOINTERPROC glVertexAttribPointer; //Require GL_ARB_vertex_shader - FF_PFNGLGETUNIFORMLOCATIONPROC glGetUniformLocation; //Require GL_ARB_shader_objects - FF_PFNGLUNIFORM1FPROC glUniform1f; //Require GL_ARB_shader_objects - FF_PFNGLUNIFORM1IPROC glUniform1i; //Require GL_ARB_shader_objects - FF_PFNGLUNIFORMMATRIX4FVPROC glUniformMatrix4fv; //Require GL_ARB_shader_objects - FF_PFNGLCREATEPROGRAMPROC glCreateProgram; //Require GL_ARB_shader_objects - FF_PFNGLDELETEPROGRAMPROC glDeleteProgram; //Require GL_ARB_shader_objects - FF_PFNGLUSEPROGRAMPROC glUseProgram; //Require GL_ARB_shader_objects - FF_PFNGLLINKPROGRAMPROC glLinkProgram; //Require GL_ARB_shader_objects - FF_PFNGLGETPROGRAMIVPROC glGetProgramiv; //Require GL_ARB_shader_objects - FF_PFNGLGETPROGRAMINFOLOGPROC glGetProgramInfoLog; //Require GL_ARB_shader_objects - FF_PFNGLATTACHSHADERPROC glAttachShader; //Require GL_ARB_shader_objects - FF_PFNGLCREATESHADERPROC glCreateShader; //Require GL_ARB_shader_objects - FF_PFNGLDELETESHADERPROC glDeleteShader; //Require GL_ARB_shader_objects - FF_PFNGLCOMPILESHADERPROC glCompileShader; //Require GL_ARB_shader_objects - FF_PFNGLSHADERSOURCEPROC glShaderSource; //Require GL_ARB_shader_objects - FF_PFNGLGETSHADERIVPROC glGetShaderiv; //Require GL_ARB_shader_objects - FF_PFNGLGETSHADERINFOLOGPROC glGetShaderInfoLog; //Require GL_ARB_shader_objects -} FFOpenGLFunctions; - -#define OPENGL_ERROR_CHECK(ctx) \ -{\ - GLenum err_code; \ - if ((err_code = glGetError()) != GL_NO_ERROR) { \ - av_log(ctx, AV_LOG_ERROR, "OpenGL error occurred in '%s', line %d: %d\n", __func__, __LINE__, err_code); \ - goto fail; \ - } \ -}\ - -typedef struct OpenGLVertexInfo -{ - float x, y, z; ///texture_name); - opengl->texture_name[0] = opengl->texture_name[1] = - opengl->texture_name[2] = opengl->texture_name[3] = 0; - if (opengl->glprocs.glUseProgram) - opengl->glprocs.glUseProgram(0); - if (opengl->glprocs.glDeleteProgram) { - opengl->glprocs.glDeleteProgram(opengl->program); - opengl->program = 0; - } - if (opengl->glprocs.glDeleteShader) { - opengl->glprocs.glDeleteShader(opengl->vertex_shader); - opengl->glprocs.glDeleteShader(opengl->fragment_shader); - opengl->vertex_shader = opengl->fragment_shader = 0; - } - if (opengl->glprocs.glBindBuffer) { - opengl->glprocs.glBindBuffer(FF_GL_ARRAY_BUFFER, 0); - opengl->glprocs.glBindBuffer(FF_GL_ELEMENT_ARRAY_BUFFER, 0); - } - if (opengl->glprocs.glDeleteBuffers) { - opengl->glprocs.glDeleteBuffers(2, &opengl->index_buffer); - opengl->vertex_buffer = opengl->index_buffer = 0; - } -} - -static int opengl_resize(AVFormatContext *h, int width, int height) -{ - int ret = 0; - OpenGLContext *opengl = h->priv_data; - opengl->window_width = width; - opengl->window_height = height; - if (opengl->inited) { - if (opengl->no_window && - (ret = avdevice_dev_to_app_control_message(h, AV_DEV_TO_APP_PREPARE_WINDOW_BUFFER, NULL , 0)) < 0) { - av_log(opengl, AV_LOG_ERROR, "Application failed to prepare window buffer.\n"); - goto end; - } - if ((ret = opengl_prepare_vertex(h)) < 0) - goto end; - ret = opengl_draw(h, NULL, 1, 0); - } - end: - return ret; -} - -static int opengl_control_message(AVFormatContext *h, int type, void *data, size_t data_size) -{ - OpenGLContext *opengl = h->priv_data; - switch(type) { - case AV_APP_TO_DEV_WINDOW_SIZE: - if (data) { - AVDeviceRect *message = data; - return opengl_resize(h, message->width, message->height); - } - return AVERROR(EINVAL); - case AV_APP_TO_DEV_WINDOW_REPAINT: - return opengl_resize(h, opengl->window_width, opengl->window_height); - } - return AVERROR(ENOSYS); -} - -#if CONFIG_SDL2 -static int opengl_sdl_process_events(AVFormatContext *h) -{ - OpenGLContext *opengl = h->priv_data; - AVDeviceRect message; - SDL_Event event; - SDL_PumpEvents(); - while (SDL_PeepEvents(&event, 1, SDL_GETEVENT, SDL_FIRSTEVENT, SDL_LASTEVENT) > 0) { - switch (event.type) { - case SDL_QUIT: - return AVERROR(EIO); - case SDL_KEYDOWN: - switch (event.key.keysym.sym) { - case SDLK_ESCAPE: - case SDLK_q: - return AVERROR(EIO); - } - return 0; - case SDL_WINDOWEVENT: - switch(event.window.event) { - case SDL_WINDOWEVENT_RESIZED: - case SDL_WINDOWEVENT_SIZE_CHANGED: - SDL_GL_GetDrawableSize(opengl->window, &message.width, &message.height); - return opengl_control_message(h, AV_APP_TO_DEV_WINDOW_SIZE, &message, sizeof(AVDeviceRect)); - default: - break; - } - } - } - return 0; -} - -static int av_cold opengl_sdl_create_window(AVFormatContext *h) -{ - OpenGLContext *opengl = h->priv_data; - AVDeviceRect message; - if (SDL_Init(SDL_INIT_VIDEO)) { - av_log(opengl, AV_LOG_ERROR, "Unable to initialize SDL: %s\n", SDL_GetError()); - return AVERROR_EXTERNAL; - } - opengl->window = SDL_CreateWindow(opengl->window_title, - SDL_WINDOWPOS_UNDEFINED, - SDL_WINDOWPOS_UNDEFINED, - opengl->window_width, opengl->window_height, - SDL_WINDOW_RESIZABLE | SDL_WINDOW_OPENGL); - if (!opengl->window) { - av_log(opengl, AV_LOG_ERROR, "Unable to create default window: %s\n", SDL_GetError()); - return AVERROR_EXTERNAL; - } - opengl->glcontext = SDL_GL_CreateContext(opengl->window); - if (!opengl->glcontext) { - av_log(opengl, AV_LOG_ERROR, "Unable to create OpenGL context on default window: %s\n", SDL_GetError()); - return AVERROR_EXTERNAL; - } - SDL_GL_SetAttribute(SDL_GL_RED_SIZE, 8); - SDL_GL_SetAttribute(SDL_GL_GREEN_SIZE, 8); - SDL_GL_SetAttribute(SDL_GL_BLUE_SIZE, 8); - SDL_GL_SetAttribute(SDL_GL_ALPHA_SIZE, 8); - SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 1); - av_log(opengl, AV_LOG_INFO, "SDL driver: '%s'.\n", SDL_GetCurrentVideoDriver()); - SDL_GL_GetDrawableSize(opengl->window, &message.width, &message.height); - return opengl_control_message(h, AV_APP_TO_DEV_WINDOW_SIZE, &message, sizeof(AVDeviceRect)); -} - -static int av_cold opengl_sdl_load_procedures(OpenGLContext *opengl) -{ - FFOpenGLFunctions *procs = &opengl->glprocs; - -#define LOAD_OPENGL_FUN(name, type) \ - procs->name = (type)SDL_GL_GetProcAddress(#name); \ - if (!procs->name) { \ - av_log(opengl, AV_LOG_ERROR, "Cannot load OpenGL function: '%s'\n", #name); \ - return AVERROR(ENOSYS); \ - } - - LOAD_OPENGL_FUN(glActiveTexture, FF_PFNGLACTIVETEXTUREPROC) - LOAD_OPENGL_FUN(glGenBuffers, FF_PFNGLGENBUFFERSPROC) - LOAD_OPENGL_FUN(glDeleteBuffers, FF_PFNGLDELETEBUFFERSPROC) - LOAD_OPENGL_FUN(glBufferData, FF_PFNGLBUFFERDATAPROC) - LOAD_OPENGL_FUN(glBindBuffer, FF_PFNGLBINDBUFFERPROC) - LOAD_OPENGL_FUN(glGetAttribLocation, FF_PFNGLGETATTRIBLOCATIONPROC) - LOAD_OPENGL_FUN(glGetUniformLocation, FF_PFNGLGETUNIFORMLOCATIONPROC) - LOAD_OPENGL_FUN(glUniform1f, FF_PFNGLUNIFORM1FPROC) - LOAD_OPENGL_FUN(glUniform1i, FF_PFNGLUNIFORM1IPROC) - LOAD_OPENGL_FUN(glUniformMatrix4fv, FF_PFNGLUNIFORMMATRIX4FVPROC) - LOAD_OPENGL_FUN(glCreateProgram, FF_PFNGLCREATEPROGRAMPROC) - LOAD_OPENGL_FUN(glDeleteProgram, FF_PFNGLDELETEPROGRAMPROC) - LOAD_OPENGL_FUN(glUseProgram, FF_PFNGLUSEPROGRAMPROC) - LOAD_OPENGL_FUN(glLinkProgram, FF_PFNGLLINKPROGRAMPROC) - LOAD_OPENGL_FUN(glGetProgramiv, FF_PFNGLGETPROGRAMIVPROC) - LOAD_OPENGL_FUN(glGetProgramInfoLog, FF_PFNGLGETPROGRAMINFOLOGPROC) - LOAD_OPENGL_FUN(glAttachShader, FF_PFNGLATTACHSHADERPROC) - LOAD_OPENGL_FUN(glCreateShader, FF_PFNGLCREATESHADERPROC) - LOAD_OPENGL_FUN(glDeleteShader, FF_PFNGLDELETESHADERPROC) - LOAD_OPENGL_FUN(glCompileShader, FF_PFNGLCOMPILESHADERPROC) - LOAD_OPENGL_FUN(glShaderSource, FF_PFNGLSHADERSOURCEPROC) - LOAD_OPENGL_FUN(glGetShaderiv, FF_PFNGLGETSHADERIVPROC) - LOAD_OPENGL_FUN(glGetShaderInfoLog, FF_PFNGLGETSHADERINFOLOGPROC) - LOAD_OPENGL_FUN(glEnableVertexAttribArray, FF_PFNGLENABLEVERTEXATTRIBARRAYPROC) - LOAD_OPENGL_FUN(glVertexAttribPointer, FF_PFNGLVERTEXATTRIBPOINTERPROC) - - return 0; - -#undef LOAD_OPENGL_FUN -} -#endif /* CONFIG_SDL2 */ - -#if defined(__APPLE__) -static int av_cold opengl_load_procedures(OpenGLContext *opengl) -{ - FFOpenGLFunctions *procs = &opengl->glprocs; - -#if CONFIG_SDL2 - if (!opengl->no_window) - return opengl_sdl_load_procedures(opengl); -#endif - - procs->glActiveTexture = glActiveTexture; - procs->glGenBuffers = glGenBuffers; - procs->glDeleteBuffers = glDeleteBuffers; - procs->glBufferData = glBufferData; - procs->glBindBuffer = glBindBuffer; - procs->glGetAttribLocation = glGetAttribLocation; - procs->glGetUniformLocation = glGetUniformLocation; - procs->glUniform1f = glUniform1f; - procs->glUniform1i = glUniform1i; - procs->glUniformMatrix4fv = glUniformMatrix4fv; - procs->glCreateProgram = glCreateProgram; - procs->glDeleteProgram = glDeleteProgram; - procs->glUseProgram = glUseProgram; - procs->glLinkProgram = glLinkProgram; - procs->glGetProgramiv = glGetProgramiv; - procs->glGetProgramInfoLog = glGetProgramInfoLog; - procs->glAttachShader = glAttachShader; - procs->glCreateShader = glCreateShader; - procs->glDeleteShader = glDeleteShader; - procs->glCompileShader = glCompileShader; - procs->glShaderSource = glShaderSource; - procs->glGetShaderiv = glGetShaderiv; - procs->glGetShaderInfoLog = glGetShaderInfoLog; - procs->glEnableVertexAttribArray = glEnableVertexAttribArray; - procs->glVertexAttribPointer = (FF_PFNGLVERTEXATTRIBPOINTERPROC) glVertexAttribPointer; - return 0; -} -#else -static int av_cold opengl_load_procedures(OpenGLContext *opengl) -{ - FFOpenGLFunctions *procs = &opengl->glprocs; - -#if HAVE_GLXGETPROCADDRESS -#define SelectedGetProcAddress glXGetProcAddress -#elif HAVE_WGLGETPROCADDRESS -#define SelectedGetProcAddress wglGetProcAddress -#endif - -#define LOAD_OPENGL_FUN(name, type) \ - procs->name = (type)SelectedGetProcAddress(#name); \ - if (!procs->name) { \ - av_log(opengl, AV_LOG_ERROR, "Cannot load OpenGL function: '%s'\n", #name); \ - return AVERROR(ENOSYS); \ - } - -#if CONFIG_SDL2 - if (!opengl->no_window) - return opengl_sdl_load_procedures(opengl); -#endif - - LOAD_OPENGL_FUN(glActiveTexture, FF_PFNGLACTIVETEXTUREPROC) - LOAD_OPENGL_FUN(glGenBuffers, FF_PFNGLGENBUFFERSPROC) - LOAD_OPENGL_FUN(glDeleteBuffers, FF_PFNGLDELETEBUFFERSPROC) - LOAD_OPENGL_FUN(glBufferData, FF_PFNGLBUFFERDATAPROC) - LOAD_OPENGL_FUN(glBindBuffer, FF_PFNGLBINDBUFFERPROC) - LOAD_OPENGL_FUN(glGetAttribLocation, FF_PFNGLGETATTRIBLOCATIONPROC) - LOAD_OPENGL_FUN(glGetUniformLocation, FF_PFNGLGETUNIFORMLOCATIONPROC) - LOAD_OPENGL_FUN(glUniform1f, FF_PFNGLUNIFORM1FPROC) - LOAD_OPENGL_FUN(glUniform1i, FF_PFNGLUNIFORM1IPROC) - LOAD_OPENGL_FUN(glUniformMatrix4fv, FF_PFNGLUNIFORMMATRIX4FVPROC) - LOAD_OPENGL_FUN(glCreateProgram, FF_PFNGLCREATEPROGRAMPROC) - LOAD_OPENGL_FUN(glDeleteProgram, FF_PFNGLDELETEPROGRAMPROC) - LOAD_OPENGL_FUN(glUseProgram, FF_PFNGLUSEPROGRAMPROC) - LOAD_OPENGL_FUN(glLinkProgram, FF_PFNGLLINKPROGRAMPROC) - LOAD_OPENGL_FUN(glGetProgramiv, FF_PFNGLGETPROGRAMIVPROC) - LOAD_OPENGL_FUN(glGetProgramInfoLog, FF_PFNGLGETPROGRAMINFOLOGPROC) - LOAD_OPENGL_FUN(glAttachShader, FF_PFNGLATTACHSHADERPROC) - LOAD_OPENGL_FUN(glCreateShader, FF_PFNGLCREATESHADERPROC) - LOAD_OPENGL_FUN(glDeleteShader, FF_PFNGLDELETESHADERPROC) - LOAD_OPENGL_FUN(glCompileShader, FF_PFNGLCOMPILESHADERPROC) - LOAD_OPENGL_FUN(glShaderSource, FF_PFNGLSHADERSOURCEPROC) - LOAD_OPENGL_FUN(glGetShaderiv, FF_PFNGLGETSHADERIVPROC) - LOAD_OPENGL_FUN(glGetShaderInfoLog, FF_PFNGLGETSHADERINFOLOGPROC) - LOAD_OPENGL_FUN(glEnableVertexAttribArray, FF_PFNGLENABLEVERTEXATTRIBARRAYPROC) - LOAD_OPENGL_FUN(glVertexAttribPointer, FF_PFNGLVERTEXATTRIBPOINTERPROC) - - return 0; - -#undef SelectedGetProcAddress -#undef LOAD_OPENGL_FUN -} -#endif - -static void opengl_make_identity(float matrix[16]) -{ - memset(matrix, 0, 16 * sizeof(float)); - matrix[0] = matrix[5] = matrix[10] = matrix[15] = 1.0f; -} - -static void opengl_make_ortho(float matrix[16], float left, float right, - float bottom, float top, float nearZ, float farZ) -{ - float ral = right + left; - float rsl = right - left; - float tab = top + bottom; - float tsb = top - bottom; - float fan = farZ + nearZ; - float fsn = farZ - nearZ; - - memset(matrix, 0, 16 * sizeof(float)); - matrix[0] = 2.0f / rsl; - matrix[5] = 2.0f / tsb; - matrix[10] = -2.0f / fsn; - matrix[12] = -ral / rsl; - matrix[13] = -tab / tsb; - matrix[14] = -fan / fsn; - matrix[15] = 1.0f; -} - -static av_cold int opengl_read_limits(AVFormatContext *h) -{ - OpenGLContext *opengl = h->priv_data; - static const struct{ - const char *extension; - int major; - int minor; - } required_extensions[] = { - { "GL_ARB_multitexture", 1, 3 }, - { "GL_ARB_vertex_buffer_object", 1, 5 }, //GLX_ARB_vertex_buffer_object - { "GL_ARB_vertex_shader", 2, 0 }, - { "GL_ARB_fragment_shader", 2, 0 }, - { "GL_ARB_shader_objects", 2, 0 }, - { NULL, 0, 0 } - }; - int i, major, minor; - const char *extensions, *version; - - version = glGetString(GL_VERSION); - extensions = glGetString(GL_EXTENSIONS); - if (!version || !extensions) { - av_log(h, AV_LOG_ERROR, "No OpenGL context initialized for the current thread\n"); - return AVERROR(ENOSYS); - } - - av_log(h, AV_LOG_DEBUG, "OpenGL version: %s\n", version); - if (sscanf(version, "%d.%d", &major, &minor) != 2) - return AVERROR(ENOSYS); - - for (i = 0; required_extensions[i].extension; i++) { - if (major < required_extensions[i].major && - (major == required_extensions[i].major && minor < required_extensions[i].minor) && - !strstr(extensions, required_extensions[i].extension)) { - av_log(h, AV_LOG_ERROR, "Required extension %s is not supported.\n", - required_extensions[i].extension); - av_log(h, AV_LOG_DEBUG, "Supported extensions are: %s\n", extensions); - return AVERROR(ENOSYS); - } - } - glGetIntegerv(GL_MAX_TEXTURE_SIZE, &opengl->max_texture_size); - glGetIntegerv(GL_MAX_VIEWPORT_DIMS, &opengl->max_viewport_width); - opengl->non_pow_2_textures = major >= 2 || strstr(extensions, "GL_ARB_texture_non_power_of_two"); -#if defined(GL_ES_VERSION_2_0) - opengl->unpack_subimage = !!strstr(extensions, "GL_EXT_unpack_subimage"); -#else - opengl->unpack_subimage = 1; -#endif - - av_log(h, AV_LOG_DEBUG, "Non Power of 2 textures support: %s\n", opengl->non_pow_2_textures ? "Yes" : "No"); - av_log(h, AV_LOG_DEBUG, "Unpack Subimage extension support: %s\n", opengl->unpack_subimage ? "Yes" : "No"); - av_log(h, AV_LOG_DEBUG, "Max texture size: %dx%d\n", opengl->max_texture_size, opengl->max_texture_size); - av_log(h, AV_LOG_DEBUG, "Max viewport size: %dx%d\n", - opengl->max_viewport_width, opengl->max_viewport_height); - - OPENGL_ERROR_CHECK(opengl); - return 0; - fail: - return AVERROR_EXTERNAL; -} - -static const char* opengl_get_fragment_shader_code(enum AVPixelFormat format) -{ - int i; - for (i = 0; i < FF_ARRAY_ELEMS(opengl_format_desc); i++) { - if (opengl_format_desc[i].fixel_format == format) - return *opengl_format_desc[i].fragment_shader; - } - return NULL; -} - -static int opengl_type_size(GLenum type) -{ - switch(type) { - case GL_UNSIGNED_SHORT: - case FF_GL_UNSIGNED_SHORT_1_5_5_5_REV: - case GL_UNSIGNED_SHORT_5_6_5: - return 2; - case GL_UNSIGNED_BYTE: - case FF_GL_UNSIGNED_BYTE_3_3_2: - case FF_GL_UNSIGNED_BYTE_2_3_3_REV: - default: - break; - } - return 1; -} - -static av_cold void opengl_get_texture_params(OpenGLContext *opengl) -{ - int i; - for (i = 0; i < FF_ARRAY_ELEMS(opengl_format_desc); i++) { - if (opengl_format_desc[i].fixel_format == opengl->pix_fmt) { - opengl->format = opengl_format_desc[i].format; - opengl->type = opengl_format_desc[i].type; - break; - } - } -} - -static void opengl_compute_display_area(AVFormatContext *s) -{ - AVRational sar, dar; /* sample and display aspect ratios */ - OpenGLContext *opengl = s->priv_data; - AVStream *st = s->streams[0]; - AVCodecParameters *par = st->codecpar; - - /* compute overlay width and height from the codec context information */ - sar = st->sample_aspect_ratio.num ? st->sample_aspect_ratio : (AVRational){ 1, 1 }; - dar = av_mul_q(sar, (AVRational){ par->width, par->height }); - - /* we suppose the screen has a 1/1 sample aspect ratio */ - /* fit in the window */ - if (av_cmp_q(dar, (AVRational){ opengl->window_width, opengl->window_height }) > 0) { - /* fit in width */ - opengl->picture_width = opengl->window_width; - opengl->picture_height = av_rescale(opengl->picture_width, dar.den, dar.num); - } else { - /* fit in height */ - opengl->picture_height = opengl->window_height; - opengl->picture_width = av_rescale(opengl->picture_height, dar.num, dar.den); - } -} - -static av_cold void opengl_get_texture_size(OpenGLContext *opengl, int in_width, int in_height, - int *out_width, int *out_height) -{ - if (opengl->non_pow_2_textures) { - *out_width = in_width; - *out_height = in_height; - } else { - int max = FFMIN(FFMAX(in_width, in_height), opengl->max_texture_size); - unsigned power_of_2 = 1; - while (power_of_2 < max) - power_of_2 *= 2; - *out_height = power_of_2; - *out_width = power_of_2; - av_log(opengl, AV_LOG_DEBUG, "Texture size calculated from %dx%d into %dx%d\n", - in_width, in_height, *out_width, *out_height); - } -} - -static av_cold void opengl_fill_color_map(OpenGLContext *opengl) -{ - const AVPixFmtDescriptor *desc; - int shift; - enum AVPixelFormat pix_fmt = opengl->pix_fmt; - - /* We need order of components, not exact position, some minor HACKs here */ - if (pix_fmt == AV_PIX_FMT_RGB565 || pix_fmt == AV_PIX_FMT_BGR555 || - pix_fmt == AV_PIX_FMT_BGR8 || pix_fmt == AV_PIX_FMT_RGB8) - pix_fmt = AV_PIX_FMT_RGB24; - else if (pix_fmt == AV_PIX_FMT_BGR565 || pix_fmt == AV_PIX_FMT_RGB555) - pix_fmt = AV_PIX_FMT_BGR24; - - desc = av_pix_fmt_desc_get(pix_fmt); - if (!(desc->flags & AV_PIX_FMT_FLAG_RGB)) - return; - -#define FILL_COMPONENT(i) { \ - shift = (desc->comp[i].depth - 1) >> 3; \ - opengl->color_map[(i << 2) + (desc->comp[i].offset >> shift)] = 1.0; \ - } - - memset(opengl->color_map, 0, sizeof(opengl->color_map)); - FILL_COMPONENT(0); - FILL_COMPONENT(1); - FILL_COMPONENT(2); - if (desc->flags & AV_PIX_FMT_FLAG_ALPHA) - FILL_COMPONENT(3); - -#undef FILL_COMPONENT -} - -static av_cold GLuint opengl_load_shader(OpenGLContext *opengl, GLenum type, const char *source) -{ - GLuint shader = opengl->glprocs.glCreateShader(type); - GLint result; - if (!shader) { - av_log(opengl, AV_LOG_ERROR, "glCreateShader() failed\n"); - return 0; - } - opengl->glprocs.glShaderSource(shader, 1, &source, NULL); - opengl->glprocs.glCompileShader(shader); - - opengl->glprocs.glGetShaderiv(shader, FF_GL_COMPILE_STATUS, &result); - if (!result) { - char *log; - opengl->glprocs.glGetShaderiv(shader, FF_GL_INFO_LOG_LENGTH, &result); - if (result) { - if ((log = av_malloc(result))) { - opengl->glprocs.glGetShaderInfoLog(shader, result, NULL, log); - av_log(opengl, AV_LOG_ERROR, "Compile error: %s\n", log); - av_free(log); - } - } - goto fail; - } - OPENGL_ERROR_CHECK(opengl); - return shader; - fail: - opengl->glprocs.glDeleteShader(shader); - return 0; -} - -static av_cold int opengl_compile_shaders(OpenGLContext *opengl, enum AVPixelFormat pix_fmt) -{ - GLint result; - const char *fragment_shader_code = opengl_get_fragment_shader_code(pix_fmt); - - if (!fragment_shader_code) { - av_log(opengl, AV_LOG_ERROR, "Provided pixel format '%s' is not supported\n", - av_get_pix_fmt_name(pix_fmt)); - return AVERROR(EINVAL); - } - - opengl->vertex_shader = opengl_load_shader(opengl, FF_GL_VERTEX_SHADER, - FF_OPENGL_VERTEX_SHADER); - if (!opengl->vertex_shader) { - av_log(opengl, AV_LOG_ERROR, "Vertex shader loading failed.\n"); - goto fail; - } - opengl->fragment_shader = opengl_load_shader(opengl, FF_GL_FRAGMENT_SHADER, - fragment_shader_code); - if (!opengl->fragment_shader) { - av_log(opengl, AV_LOG_ERROR, "Fragment shader loading failed.\n"); - goto fail; - } - - opengl->program = opengl->glprocs.glCreateProgram(); - if (!opengl->program) - goto fail; - - opengl->glprocs.glAttachShader(opengl->program, opengl->vertex_shader); - opengl->glprocs.glAttachShader(opengl->program, opengl->fragment_shader); - opengl->glprocs.glLinkProgram(opengl->program); - - opengl->glprocs.glGetProgramiv(opengl->program, FF_GL_LINK_STATUS, &result); - if (!result) { - char *log; - opengl->glprocs.glGetProgramiv(opengl->program, FF_GL_INFO_LOG_LENGTH, &result); - if (result) { - log = av_malloc(result); - if (!log) - goto fail; - opengl->glprocs.glGetProgramInfoLog(opengl->program, result, NULL, log); - av_log(opengl, AV_LOG_ERROR, "Link error: %s\n", log); - av_free(log); - } - goto fail; - } - - opengl->position_attrib = opengl->glprocs.glGetAttribLocation(opengl->program, "a_position"); - opengl->texture_coords_attrib = opengl->glprocs.glGetAttribLocation(opengl->program, "a_textureCoords"); - opengl->projection_matrix_location = opengl->glprocs.glGetUniformLocation(opengl->program, "u_projectionMatrix"); - opengl->model_view_matrix_location = opengl->glprocs.glGetUniformLocation(opengl->program, "u_modelViewMatrix"); - opengl->color_map_location = opengl->glprocs.glGetUniformLocation(opengl->program, "u_colorMap"); - opengl->texture_location[0] = opengl->glprocs.glGetUniformLocation(opengl->program, "u_texture0"); - opengl->texture_location[1] = opengl->glprocs.glGetUniformLocation(opengl->program, "u_texture1"); - opengl->texture_location[2] = opengl->glprocs.glGetUniformLocation(opengl->program, "u_texture2"); - opengl->texture_location[3] = opengl->glprocs.glGetUniformLocation(opengl->program, "u_texture3"); - opengl->chroma_div_w_location = opengl->glprocs.glGetUniformLocation(opengl->program, "u_chroma_div_w"); - opengl->chroma_div_h_location = opengl->glprocs.glGetUniformLocation(opengl->program, "u_chroma_div_h"); - - OPENGL_ERROR_CHECK(opengl); - return 0; - fail: - opengl->glprocs.glDeleteShader(opengl->vertex_shader); - opengl->glprocs.glDeleteShader(opengl->fragment_shader); - opengl->glprocs.glDeleteProgram(opengl->program); - opengl->fragment_shader = opengl->vertex_shader = opengl->program = 0; - return AVERROR_EXTERNAL; -} - -static av_cold int opengl_configure_texture(OpenGLContext *opengl, GLuint texture, - GLsizei width, GLsizei height) -{ - if (texture) { - int new_width, new_height; - opengl_get_texture_size(opengl, width, height, &new_width, &new_height); - glBindTexture(GL_TEXTURE_2D, texture); - glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR); - glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); - glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE); - glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE); - glTexImage2D(GL_TEXTURE_2D, 0, opengl->format, new_width, new_height, 0, - opengl->format, opengl->type, NULL); - OPENGL_ERROR_CHECK(NULL); - } - return 0; - fail: - return AVERROR_EXTERNAL; -} - -static av_cold int opengl_prepare_vertex(AVFormatContext *s) -{ - OpenGLContext *opengl = s->priv_data; - int tex_w, tex_h; - - if (opengl->window_width > opengl->max_viewport_width || opengl->window_height > opengl->max_viewport_height) { - opengl->window_width = FFMIN(opengl->window_width, opengl->max_viewport_width); - opengl->window_height = FFMIN(opengl->window_height, opengl->max_viewport_height); - av_log(opengl, AV_LOG_WARNING, "Too big viewport requested, limited to %dx%d", opengl->window_width, opengl->window_height); - } - glViewport(0, 0, opengl->window_width, opengl->window_height); - opengl_make_ortho(opengl->projection_matrix, - - (float)opengl->window_width / 2.0f, (float)opengl->window_width / 2.0f, - - (float)opengl->window_height / 2.0f, (float)opengl->window_height / 2.0f, - 1.0f, -1.0f); - opengl_make_identity(opengl->model_view_matrix); - - opengl_compute_display_area(s); - - opengl->vertex[0].z = opengl->vertex[1].z = opengl->vertex[2].z = opengl->vertex[3].z = 0.0f; - opengl->vertex[0].x = opengl->vertex[1].x = - (float)opengl->picture_width / 2.0f; - opengl->vertex[2].x = opengl->vertex[3].x = (float)opengl->picture_width / 2.0f; - opengl->vertex[1].y = opengl->vertex[2].y = - (float)opengl->picture_height / 2.0f; - opengl->vertex[0].y = opengl->vertex[3].y = (float)opengl->picture_height / 2.0f; - - opengl_get_texture_size(opengl, opengl->width, opengl->height, &tex_w, &tex_h); - - opengl->vertex[0].s0 = 0.0f; - opengl->vertex[0].t0 = 0.0f; - opengl->vertex[1].s0 = 0.0f; - opengl->vertex[1].t0 = (float)opengl->height / (float)tex_h; - opengl->vertex[2].s0 = (float)opengl->width / (float)tex_w; - opengl->vertex[2].t0 = (float)opengl->height / (float)tex_h; - opengl->vertex[3].s0 = (float)opengl->width / (float)tex_w; - opengl->vertex[3].t0 = 0.0f; - - opengl->glprocs.glBindBuffer(FF_GL_ARRAY_BUFFER, opengl->vertex_buffer); - opengl->glprocs.glBufferData(FF_GL_ARRAY_BUFFER, sizeof(opengl->vertex), opengl->vertex, FF_GL_STATIC_DRAW); - opengl->glprocs.glBindBuffer(FF_GL_ARRAY_BUFFER, 0); - OPENGL_ERROR_CHECK(opengl); - return 0; - fail: - return AVERROR_EXTERNAL; -} - -static int opengl_prepare(OpenGLContext *opengl) -{ - int i; - opengl->glprocs.glUseProgram(opengl->program); - opengl->glprocs.glUniformMatrix4fv(opengl->projection_matrix_location, 1, GL_FALSE, opengl->projection_matrix); - opengl->glprocs.glUniformMatrix4fv(opengl->model_view_matrix_location, 1, GL_FALSE, opengl->model_view_matrix); - for (i = 0; i < 4; i++) - if (opengl->texture_location[i] != -1) { - opengl->glprocs.glActiveTexture(GL_TEXTURE0 + i); - glBindTexture(GL_TEXTURE_2D, opengl->texture_name[i]); - opengl->glprocs.glUniform1i(opengl->texture_location[i], i); - } - if (opengl->color_map_location != -1) - opengl->glprocs.glUniformMatrix4fv(opengl->color_map_location, 1, GL_FALSE, opengl->color_map); - if (opengl->chroma_div_h_location != -1) - opengl->glprocs.glUniform1f(opengl->chroma_div_h_location, opengl->chroma_div_h); - if (opengl->chroma_div_w_location != -1) - opengl->glprocs.glUniform1f(opengl->chroma_div_w_location, opengl->chroma_div_w); - - OPENGL_ERROR_CHECK(opengl); - return 0; - fail: - return AVERROR_EXTERNAL; -} - -static int opengl_create_window(AVFormatContext *h) -{ - OpenGLContext *opengl = h->priv_data; - int ret; - - if (!opengl->no_window) { -#if CONFIG_SDL2 - if ((ret = opengl_sdl_create_window(h)) < 0) { - av_log(opengl, AV_LOG_ERROR, "Cannot create default SDL window.\n"); - return ret; - } -#else - av_log(opengl, AV_LOG_ERROR, "FFmpeg is compiled without SDL. Cannot create default window.\n"); - return AVERROR(ENOSYS); -#endif - } else { - AVDeviceRect message; - message.x = message.y = 0; - message.width = opengl->window_width; - message.height = opengl->window_height; - if ((ret = avdevice_dev_to_app_control_message(h, AV_DEV_TO_APP_CREATE_WINDOW_BUFFER, - &message , sizeof(message))) < 0) { - av_log(opengl, AV_LOG_ERROR, "Application failed to create window buffer.\n"); - return ret; - } - if ((ret = avdevice_dev_to_app_control_message(h, AV_DEV_TO_APP_PREPARE_WINDOW_BUFFER, NULL , 0)) < 0) { - av_log(opengl, AV_LOG_ERROR, "Application failed to prepare window buffer.\n"); - return ret; - } - } - return 0; -} - -static int opengl_release_window(AVFormatContext *h) -{ - int ret; - OpenGLContext *opengl = h->priv_data; - if (!opengl->no_window) { -#if CONFIG_SDL2 - SDL_GL_DeleteContext(opengl->glcontext); - SDL_DestroyWindow(opengl->window); - SDL_Quit(); -#endif - } else if ((ret = avdevice_dev_to_app_control_message(h, AV_DEV_TO_APP_DESTROY_WINDOW_BUFFER, NULL , 0)) < 0) { - av_log(opengl, AV_LOG_ERROR, "Application failed to release window buffer.\n"); - return ret; - } - return 0; -} - -static av_cold int opengl_write_trailer(AVFormatContext *h) -{ - OpenGLContext *opengl = h->priv_data; - - if (opengl->no_window && - avdevice_dev_to_app_control_message(h, AV_DEV_TO_APP_PREPARE_WINDOW_BUFFER, NULL , 0) < 0) - av_log(opengl, AV_LOG_ERROR, "Application failed to prepare window buffer.\n"); - - opengl_deinit_context(opengl); - opengl_release_window(h); - - return 0; -} - -static av_cold int opengl_init_context(OpenGLContext *opengl) -{ - int i, ret; - const AVPixFmtDescriptor *desc; - - if ((ret = opengl_compile_shaders(opengl, opengl->pix_fmt)) < 0) - goto fail; - - desc = av_pix_fmt_desc_get(opengl->pix_fmt); - av_assert0(desc->nb_components > 0 && desc->nb_components <= 4); - glGenTextures(desc->nb_components, opengl->texture_name); - - opengl->glprocs.glGenBuffers(2, &opengl->index_buffer); - if (!opengl->index_buffer || !opengl->vertex_buffer) { - av_log(opengl, AV_LOG_ERROR, "Buffer generation failed.\n"); - ret = AVERROR_EXTERNAL; - goto fail; - } - - opengl_configure_texture(opengl, opengl->texture_name[0], opengl->width, opengl->height); - if (desc->nb_components > 1) { - int has_alpha = desc->flags & AV_PIX_FMT_FLAG_ALPHA; - int num_planes = desc->nb_components - (has_alpha ? 1 : 0); - if (opengl->non_pow_2_textures) { - opengl->chroma_div_w = 1.0f; - opengl->chroma_div_h = 1.0f; - } else { - opengl->chroma_div_w = 1 << desc->log2_chroma_w; - opengl->chroma_div_h = 1 << desc->log2_chroma_h; - } - for (i = 1; i < num_planes; i++) - if (opengl->non_pow_2_textures) - opengl_configure_texture(opengl, opengl->texture_name[i], - AV_CEIL_RSHIFT(opengl->width, desc->log2_chroma_w), - AV_CEIL_RSHIFT(opengl->height, desc->log2_chroma_h)); - else - opengl_configure_texture(opengl, opengl->texture_name[i], opengl->width, opengl->height); - if (has_alpha) - opengl_configure_texture(opengl, opengl->texture_name[3], opengl->width, opengl->height); - } - - opengl->glprocs.glBindBuffer(FF_GL_ELEMENT_ARRAY_BUFFER, opengl->index_buffer); - opengl->glprocs.glBufferData(FF_GL_ELEMENT_ARRAY_BUFFER, sizeof(g_index), g_index, FF_GL_STATIC_DRAW); - opengl->glprocs.glBindBuffer(FF_GL_ELEMENT_ARRAY_BUFFER, 0); - - glEnable(GL_BLEND); - glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA); - - glClearColor((float)opengl->background[0] / 255.0f, (float)opengl->background[1] / 255.0f, - (float)opengl->background[2] / 255.0f, 1.0f); - - ret = AVERROR_EXTERNAL; - OPENGL_ERROR_CHECK(opengl); - - return 0; - fail: - return ret; -} - -static av_cold int opengl_write_header(AVFormatContext *h) -{ - OpenGLContext *opengl = h->priv_data; - AVCodecParameters *par = h->streams[0]->codecpar; - AVStream *st; - int ret; - - if (h->nb_streams != 1 || - par->codec_type != AVMEDIA_TYPE_VIDEO || - (par->codec_id != AV_CODEC_ID_WRAPPED_AVFRAME && par->codec_id != AV_CODEC_ID_RAWVIDEO)) { - av_log(opengl, AV_LOG_ERROR, "Only a single raw or wrapped avframe video stream is supported.\n"); - return AVERROR(EINVAL); - } - st = h->streams[0]; - opengl->width = st->codecpar->width; - opengl->height = st->codecpar->height; - opengl->pix_fmt = st->codecpar->format; - if (!opengl->window_width) - opengl->window_width = opengl->width; - if (!opengl->window_height) - opengl->window_height = opengl->height; - - if (!opengl->window_title && !opengl->no_window) - opengl->window_title = av_strdup(h->url); - - if ((ret = opengl_create_window(h))) - goto fail; - - if ((ret = opengl_read_limits(h)) < 0) - goto fail; - - if (opengl->width > opengl->max_texture_size || opengl->height > opengl->max_texture_size) { - av_log(opengl, AV_LOG_ERROR, "Too big picture %dx%d, max supported size is %dx%d\n", - opengl->width, opengl->height, opengl->max_texture_size, opengl->max_texture_size); - ret = AVERROR(EINVAL); - goto fail; - } - - if ((ret = opengl_load_procedures(opengl)) < 0) - goto fail; - - opengl_fill_color_map(opengl); - opengl_get_texture_params(opengl); - - if ((ret = opengl_init_context(opengl)) < 0) - goto fail; - - if ((ret = opengl_prepare_vertex(h)) < 0) - goto fail; - - glClear(GL_COLOR_BUFFER_BIT); - -#if CONFIG_SDL2 - if (!opengl->no_window) - SDL_GL_SwapWindow(opengl->window); -#endif - if (opengl->no_window && - (ret = avdevice_dev_to_app_control_message(h, AV_DEV_TO_APP_DISPLAY_WINDOW_BUFFER, NULL , 0)) < 0) { - av_log(opengl, AV_LOG_ERROR, "Application failed to display window buffer.\n"); - goto fail; - } - - ret = AVERROR_EXTERNAL; - OPENGL_ERROR_CHECK(opengl); - - opengl->inited = 1; - return 0; - - fail: - opengl_write_trailer(h); - return ret; -} - -static uint8_t* opengl_get_plane_pointer(OpenGLContext *opengl, AVPacket *pkt, int comp_index, - const AVPixFmtDescriptor *desc) -{ - uint8_t *data = pkt->data; - int wordsize = opengl_type_size(opengl->type); - int width_chroma = AV_CEIL_RSHIFT(opengl->width, desc->log2_chroma_w); - int height_chroma = AV_CEIL_RSHIFT(opengl->height, desc->log2_chroma_h); - int plane = desc->comp[comp_index].plane; - - switch(plane) { - case 0: - break; - case 1: - data += opengl->width * opengl->height * wordsize; - break; - case 2: - data += opengl->width * opengl->height * wordsize; - data += width_chroma * height_chroma * wordsize; - break; - case 3: - data += opengl->width * opengl->height * wordsize; - data += 2 * width_chroma * height_chroma * wordsize; - break; - default: - return NULL; - } - return data; -} - -#define LOAD_TEXTURE_DATA(comp_index, sub) \ -{ \ - int width = sub ? AV_CEIL_RSHIFT(opengl->width, desc->log2_chroma_w) : opengl->width; \ - int height = sub ? AV_CEIL_RSHIFT(opengl->height, desc->log2_chroma_h): opengl->height; \ - uint8_t *data; \ - int plane = desc->comp[comp_index].plane; \ - \ - glBindTexture(GL_TEXTURE_2D, opengl->texture_name[comp_index]); \ - if (!is_pkt) { \ - GLint length = ((AVFrame *)input)->linesize[plane]; \ - int bytes_per_pixel = opengl_type_size(opengl->type); \ - if (!(desc->flags & AV_PIX_FMT_FLAG_PLANAR)) \ - bytes_per_pixel *= desc->nb_components; \ - data = ((AVFrame *)input)->data[plane]; \ - if (!(length % bytes_per_pixel) && \ - (opengl->unpack_subimage || ((length / bytes_per_pixel) == width))) { \ - length /= bytes_per_pixel; \ - if (length != width) \ - glPixelStorei(FF_GL_UNPACK_ROW_LENGTH, length); \ - glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, width, height, \ - opengl->format, opengl->type, data); \ - if (length != width) \ - glPixelStorei(FF_GL_UNPACK_ROW_LENGTH, 0); \ - } else { \ - int h; \ - for (h = 0; h < height; h++) { \ - glTexSubImage2D(GL_TEXTURE_2D, 0, 0, h, width, 1, \ - opengl->format, opengl->type, data); \ - data += length; \ - } \ - } \ - } else { \ - data = opengl_get_plane_pointer(opengl, input, comp_index, desc); \ - glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, width, height, \ - opengl->format, opengl->type, data); \ - } \ -} - -static int opengl_draw(AVFormatContext *h, void *input, int repaint, int is_pkt) -{ - OpenGLContext *opengl = h->priv_data; - enum AVPixelFormat pix_fmt = h->streams[0]->codecpar->format; - const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(pix_fmt); - int ret; - -#if CONFIG_SDL2 - /* At this point, opengl->glcontext implies opengl->glcontext */ - if (opengl->glcontext) - SDL_GL_MakeCurrent(opengl->window, opengl->glcontext); - - if (!opengl->no_window && (ret = opengl_sdl_process_events(h)) < 0) - goto fail; -#endif - if (opengl->no_window && - (ret = avdevice_dev_to_app_control_message(h, AV_DEV_TO_APP_PREPARE_WINDOW_BUFFER, NULL , 0)) < 0) { - av_log(opengl, AV_LOG_ERROR, "Application failed to prepare window buffer.\n"); - goto fail; - } - - glClear(GL_COLOR_BUFFER_BIT); - - if (!repaint) { - if (is_pkt) - glPixelStorei(GL_UNPACK_ALIGNMENT, 1); - LOAD_TEXTURE_DATA(0, 0) - if (desc->flags & AV_PIX_FMT_FLAG_PLANAR) { - LOAD_TEXTURE_DATA(1, 1) - LOAD_TEXTURE_DATA(2, 1) - if (desc->flags & AV_PIX_FMT_FLAG_ALPHA) - LOAD_TEXTURE_DATA(3, 0) - } - } - ret = AVERROR_EXTERNAL; - OPENGL_ERROR_CHECK(opengl); - - if ((ret = opengl_prepare(opengl)) < 0) - goto fail; - - opengl->glprocs.glBindBuffer(FF_GL_ARRAY_BUFFER, opengl->vertex_buffer); - opengl->glprocs.glBindBuffer(FF_GL_ELEMENT_ARRAY_BUFFER, opengl->index_buffer); - opengl->glprocs.glVertexAttribPointer(opengl->position_attrib, 3, GL_FLOAT, GL_FALSE, sizeof(OpenGLVertexInfo), 0); - opengl->glprocs.glEnableVertexAttribArray(opengl->position_attrib); - opengl->glprocs.glVertexAttribPointer(opengl->texture_coords_attrib, 2, GL_FLOAT, GL_FALSE, sizeof(OpenGLVertexInfo), 12); - opengl->glprocs.glEnableVertexAttribArray(opengl->texture_coords_attrib); - - glDrawElements(GL_TRIANGLES, FF_ARRAY_ELEMS(g_index), GL_UNSIGNED_SHORT, 0); - - ret = AVERROR_EXTERNAL; - OPENGL_ERROR_CHECK(opengl); - -#if CONFIG_SDL2 - if (!opengl->no_window) - SDL_GL_SwapWindow(opengl->window); -#endif - if (opengl->no_window && - (ret = avdevice_dev_to_app_control_message(h, AV_DEV_TO_APP_DISPLAY_WINDOW_BUFFER, NULL , 0)) < 0) { - av_log(opengl, AV_LOG_ERROR, "Application failed to display window buffer.\n"); - goto fail; - } - - return 0; - fail: - return ret; -} - -static int opengl_write_packet(AVFormatContext *h, AVPacket *pkt) -{ - AVCodecParameters *par = h->streams[0]->codecpar; - if (par->codec_id == AV_CODEC_ID_WRAPPED_AVFRAME) { - AVFrame *frame = (AVFrame *)pkt->data; - return opengl_draw(h, frame, 0, 0); - } else { - return opengl_draw(h, pkt, 0, 1); - } -} - -static int opengl_write_frame(AVFormatContext *h, int stream_index, - AVFrame **frame, unsigned flags) -{ - if ((flags & AV_WRITE_UNCODED_FRAME_QUERY)) - return 0; - return opengl_draw(h, *frame, 0, 0); -} - -#define OFFSET(x) offsetof(OpenGLContext, x) -#define ENC AV_OPT_FLAG_ENCODING_PARAM -static const AVOption options[] = { - { "background", "set background color", OFFSET(background), AV_OPT_TYPE_COLOR, {.str = "black"}, 0, 0, ENC }, - { "no_window", "disable default window", OFFSET(no_window), AV_OPT_TYPE_INT, {.i64 = 0}, INT_MIN, INT_MAX, ENC }, - { "window_title", "set window title", OFFSET(window_title), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, ENC }, - { "window_size", "set window size", OFFSET(window_width), AV_OPT_TYPE_IMAGE_SIZE, {.str = NULL}, 0, 0, ENC }, - { NULL } -}; - -static const AVClass opengl_class = { - .class_name = "opengl outdev", - .item_name = av_default_item_name, - .option = options, - .version = LIBAVUTIL_VERSION_INT, - .category = AV_CLASS_CATEGORY_DEVICE_VIDEO_OUTPUT, -}; - -const FFOutputFormat ff_opengl_muxer = { - .p.name = "opengl", - .p.long_name = NULL_IF_CONFIG_SMALL("OpenGL output"), - .p.audio_codec = AV_CODEC_ID_NONE, - .p.video_codec = AV_CODEC_ID_WRAPPED_AVFRAME, - .p.flags = AVFMT_NOFILE | AVFMT_VARIABLE_FPS | AVFMT_NOTIMESTAMPS, - .p.priv_class = &opengl_class, - .priv_data_size = sizeof(OpenGLContext), - .write_header = opengl_write_header, - .write_packet = opengl_write_packet, - .write_uncoded_frame = opengl_write_frame, - .write_trailer = opengl_write_trailer, - .control_message = opengl_control_message, -};