/*****************************************************************************
- * opengl.c: OpenGL video output
+ * opengl.c: OpenGL and OpenGL ES output common code
*****************************************************************************
- * Copyright (C) 2004 the VideoLAN team
- * $Id$
+ * Copyright (C) 2004-2011 VLC authors and VideoLAN
+ * Copyright (C) 2009, 2011 Laurent Aimar
*
* Authors: Cyril Deguet <asmax@videolan.org>
* Gildas Bazin <gbazin@videolan.org>
* Eric Petit <titer@m0k.org>
* Cedric Cocquebert <cedric.cocquebert@supelec.fr>
+ * Laurent Aimar <fenrir _AT_ videolan _DOT_ org>
*
* 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
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
*****************************************************************************/
-
-/*****************************************************************************
- * Preamble
- *****************************************************************************/
-
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
-#include <assert.h>
-
#include <vlc_common.h>
-#include <vlc_plugin.h>
-#include <vlc_vout.h>
+#include <vlc_picture_pool.h>
+#include <vlc_subpicture.h>
+#include <vlc_opengl.h>
+
#include "opengl.h"
+// Define USE_OPENGL_ES to the GL ES Version you want to select
-/*****************************************************************************
- * Vout interface
- *****************************************************************************/
-static int CreateVout ( vlc_object_t * );
-static void DestroyVout ( vlc_object_t * );
-static int Init ( vout_thread_t * );
-static void End ( vout_thread_t * );
-static int Manage ( vout_thread_t * );
-static void Render ( vout_thread_t *, picture_t * );
-static void DisplayVideo ( vout_thread_t *, picture_t * );
-static int Control ( vout_thread_t *, int, va_list );
-
-static int SendEvents ( vlc_object_t *, char const *,
- vlc_value_t, vlc_value_t, void * );
-
-#define PROVIDER_TEXT N_("OpenGL Provider")
-#define PROVIDER_LONGTEXT N_("Allows you to modify what OpenGL provider should be used")
-
-vlc_module_begin ()
- set_shortname( "OpenGL" )
- set_category( CAT_VIDEO )
- set_subcategory( SUBCAT_VIDEO_VOUT )
- set_description( N_("OpenGL video output") )
#ifdef __APPLE__
- set_capability( "video output", 200 )
-#else
- set_capability( "video output", 20 )
+# define PFNGLGENPROGRAMSARBPROC typeof(glGenProgramsARB)*
+# define PFNGLBINDPROGRAMARBPROC typeof(glBindProgramARB)*
+# define PFNGLPROGRAMSTRINGARBPROC typeof(glProgramStringARB)*
+# define PFNGLDELETEPROGRAMSARBPROC typeof(glDeleteProgramsARB)*
+# define PFNGLPROGRAMLOCALPARAMETER4FVARBPROC typeof(glProgramLocalParameter4fvARB)*
+# define PFNGLACTIVETEXTUREARBPROC typeof(glActiveTextureARB)*
+# define PFNGLMULTITEXCOORD2FARBPROC typeof(glMultiTexCoord2fARB)*
#endif
- add_shortcut( "opengl" )
- /* Allow opengl provider plugin selection */
- add_module( "opengl-provider", "opengl provider", NULL, NULL,
- PROVIDER_TEXT, PROVIDER_LONGTEXT, true )
- set_callbacks( CreateVout, DestroyVout )
-vlc_module_end ()
-/*****************************************************************************
- * vout_sys_t: video output method descriptor
- *****************************************************************************
- * This structure is part of the video output thread descriptor.
- * It describes the OpenGL specific properties of the output thread.
- *****************************************************************************/
-struct vout_sys_t
-{
- vout_thread_t *p_vout;
- vout_opengl_t gl;
- vout_display_opengl_t vgl;
+/* RV16 */
+#ifndef GL_UNSIGNED_SHORT_5_6_5
+# define GL_UNSIGNED_SHORT_5_6_5 0x8363
+#endif
+#ifndef GL_CLAMP_TO_EDGE
+# define GL_CLAMP_TO_EDGE 0x812F
+#endif
- picture_pool_t *p_pool;
- picture_t *p_current;
+#if USE_OPENGL_ES
+# define VLCGL_TEXTURE_COUNT 1
+# define VLCGL_PICTURE_MAX 1
+#else
+# define VLCGL_TEXTURE_COUNT 1
+# define VLCGL_PICTURE_MAX 128
+#endif
+
+static const vlc_fourcc_t gl_subpicture_chromas[] = {
+ VLC_CODEC_RGBA,
+ 0
};
-/*****************************************************************************
- * CreateVout: This function allocates and initializes the OpenGL vout method.
- *****************************************************************************/
-static int CreateVout( vlc_object_t *p_this )
-{
- vout_thread_t *p_vout = (vout_thread_t *)p_this;
- vout_sys_t *p_sys;
- char * psz;
-
- /* Allocate structure */
- p_vout->p_sys = p_sys = malloc( sizeof( vout_sys_t ) );
- if( p_sys == NULL )
- return VLC_ENOMEM;
-
- /* Get window */
- p_sys->p_vout =
- (vout_thread_t *)vlc_object_create( p_this, sizeof( vout_thread_t ) );
- if( p_sys->p_vout == NULL )
- {
- free( p_sys );
- return VLC_ENOMEM;
- }
- vlc_object_attach( p_sys->p_vout, p_this );
-
- p_sys->p_vout->i_window_width = p_vout->i_window_width;
- p_sys->p_vout->i_window_height = p_vout->i_window_height;
- p_sys->p_vout->b_fullscreen = p_vout->b_fullscreen;
- p_sys->p_vout->render.i_width = p_vout->render.i_width;
- p_sys->p_vout->render.i_height = p_vout->render.i_height;
- p_sys->p_vout->render.i_aspect = p_vout->render.i_aspect;
- p_sys->p_vout->fmt_render = p_vout->fmt_render;
- p_sys->p_vout->fmt_in = p_vout->fmt_in;
- p_sys->p_vout->b_autoscale = p_vout->b_autoscale;
- p_sys->p_vout->i_zoom = p_vout->i_zoom;
- p_sys->p_vout->i_alignment = p_vout->i_alignment;
- var_Create( p_sys->p_vout, "video-deco",
- VLC_VAR_BOOL | VLC_VAR_DOINHERIT );
-
- /* Forward events from the opengl provider */
- var_Create( p_sys->p_vout, "mouse-x", VLC_VAR_INTEGER );
- var_Create( p_sys->p_vout, "mouse-y", VLC_VAR_INTEGER );
- var_Create( p_sys->p_vout, "mouse-moved", VLC_VAR_BOOL );
- var_Create( p_sys->p_vout, "mouse-clicked", VLC_VAR_BOOL );
- var_Create( p_sys->p_vout, "mouse-button-down", VLC_VAR_INTEGER );
- var_Create( p_sys->p_vout, "video-on-top",
- VLC_VAR_BOOL | VLC_VAR_DOINHERIT );
- var_Create( p_sys->p_vout, "autoscale",
- VLC_VAR_BOOL | VLC_VAR_DOINHERIT );
- var_Create( p_sys->p_vout, "scale",
- VLC_VAR_FLOAT | VLC_VAR_DOINHERIT );
-
- var_AddCallback( p_sys->p_vout, "mouse-x", SendEvents, p_vout );
- var_AddCallback( p_sys->p_vout, "mouse-y", SendEvents, p_vout );
- var_AddCallback( p_sys->p_vout, "mouse-moved", SendEvents, p_vout );
- var_AddCallback( p_sys->p_vout, "mouse-clicked", SendEvents, p_vout );
- var_AddCallback( p_sys->p_vout, "mouse-button-down", SendEvents, p_vout );
- var_AddCallback( p_sys->p_vout, "video-on-top", SendEvents, p_vout );
- var_AddCallback( p_vout, "autoscale", SendEvents, p_sys->p_vout );
- var_AddCallback( p_vout, "scale", SendEvents, p_sys->p_vout );
-
- psz = var_CreateGetString( p_vout, "opengl-provider" );
- p_sys->p_vout->p_module =
- module_need( p_sys->p_vout, "opengl provider", psz, false );
- free( psz );
- if( p_sys->p_vout->p_module == NULL )
- {
- msg_Warn( p_vout, "No OpenGL provider found" );
- vlc_object_detach( p_sys->p_vout );
- /* no need for var_DelCallback here :-) */
- vlc_object_release( p_sys->p_vout );
- free( p_sys );
- return VLC_ENOOBJ;
- }
+typedef struct {
+ GLuint texture;
+ unsigned format;
+ unsigned type;
+ unsigned width;
+ unsigned height;
- p_vout->pf_init = Init;
- p_vout->pf_end = End;
- p_vout->pf_manage = Manage;
- p_vout->pf_render = Render;
- p_vout->pf_display = DisplayVideo;
- p_vout->pf_control = Control;
+ float alpha;
- return VLC_SUCCESS;
-}
+ float top;
+ float left;
+ float bottom;
+ float right;
+} gl_region_t;
-static int OpenglLock(vout_opengl_t *gl)
-{
- vout_thread_t *p_vout = gl->sys;
+struct vout_display_opengl_t {
+ vlc_gl_t *gl;
- if( !p_vout->pf_lock )
- return VLC_SUCCESS;
- return p_vout->pf_lock( p_vout );
-}
-static void OpenglUnlock(vout_opengl_t *gl)
-{
- vout_thread_t *p_vout = gl->sys;
+ video_format_t fmt;
+ const vlc_chroma_description_t *chroma;
+
+ int tex_target;
+ int tex_format;
+ int tex_internal;
+ int tex_type;
+
+ int tex_width[PICTURE_PLANE_MAX];
+ int tex_height[PICTURE_PLANE_MAX];
+
+ GLuint texture[VLCGL_TEXTURE_COUNT][PICTURE_PLANE_MAX];
+
+ int region_count;
+ gl_region_t *region;
- if( p_vout->pf_unlock )
- p_vout->pf_unlock( p_vout );
+
+ picture_pool_t *pool;
+
+ GLuint program;
+ int local_count;
+ GLfloat local_value[16][4];
+
+ /* fragment_program */
+ PFNGLGENPROGRAMSARBPROC GenProgramsARB;
+ PFNGLBINDPROGRAMARBPROC BindProgramARB;
+ PFNGLPROGRAMSTRINGARBPROC ProgramStringARB;
+ PFNGLDELETEPROGRAMSARBPROC DeleteProgramsARB;
+ PFNGLPROGRAMLOCALPARAMETER4FVARBPROC ProgramLocalParameter4fvARB;
+
+ /* multitexture */
+ bool use_multitexture;
+ PFNGLACTIVETEXTUREARBPROC ActiveTextureARB;
+ PFNGLMULTITEXCOORD2FARBPROC MultiTexCoord2fARB;
+};
+
+static inline int GetAlignedSize(unsigned size)
+{
+ /* Return the smallest larger or equal power of 2 */
+ unsigned align = 1 << (8 * sizeof (unsigned) - clz(size));
+ return ((align >> 1) == size) ? size : align;
}
-static void OpenglSwap(vout_opengl_t *gl)
+
+static bool IsLuminance16Supported(int target)
{
- vout_thread_t *p_vout = gl->sys;
- p_vout->pf_swap( p_vout );
+ GLuint texture;
+
+ glGenTextures(1, &texture);
+ glBindTexture(target, texture);
+ glTexImage2D(target, 0, GL_LUMINANCE16,
+ 64, 64, 0, GL_LUMINANCE, GL_UNSIGNED_SHORT, NULL);
+ GLint size = 0;
+ glGetTexLevelParameteriv(target, 0, GL_TEXTURE_LUMINANCE_SIZE, &size);
+
+ glDeleteTextures(1, &texture);
+
+ return size == 16;
}
-/*****************************************************************************
- * Init: initialize the OpenGL video thread output method
- *****************************************************************************/
-static int Init( vout_thread_t *p_vout )
+vout_display_opengl_t *vout_display_opengl_New(video_format_t *fmt,
+ const vlc_fourcc_t **subpicture_chromas,
+ vlc_gl_t *gl)
{
- vout_sys_t *p_sys = p_vout->p_sys;
+ vout_display_opengl_t *vgl = calloc(1, sizeof(*vgl));
+ if (!vgl)
+ return NULL;
+
+ vgl->gl = gl;
+ if (vlc_gl_Lock(vgl->gl)) {
+ free(vgl);
+ return NULL;
+ }
+
+ const char *extensions = (const char *)glGetString(GL_EXTENSIONS);
+
+ /* Load extensions */
+ bool supports_fp = false;
+ if (HasExtension(extensions, "GL_ARB_fragment_program")) {
+#if !defined(MACOS_OPENGL)
+ vgl->GenProgramsARB = (PFNGLGENPROGRAMSARBPROC)vlc_gl_GetProcAddress(vgl->gl, "glGenProgramsARB");
+ vgl->BindProgramARB = (PFNGLBINDPROGRAMARBPROC)vlc_gl_GetProcAddress(vgl->gl, "glBindProgramARB");
+ vgl->ProgramStringARB = (PFNGLPROGRAMSTRINGARBPROC)vlc_gl_GetProcAddress(vgl->gl, "glProgramStringARB");
+ vgl->DeleteProgramsARB = (PFNGLDELETEPROGRAMSARBPROC)vlc_gl_GetProcAddress(vgl->gl, "glDeleteProgramsARB");
+ vgl->ProgramLocalParameter4fvARB = (PFNGLPROGRAMLOCALPARAMETER4FVARBPROC)vlc_gl_GetProcAddress(vgl->gl, "glProgramLocalParameter4fvARB");
+#else
+ vgl->GenProgramsARB = glGenProgramsARB;
+ vgl->BindProgramARB = glBindProgramARB;
+ vgl->ProgramStringARB = glProgramStringARB;
+ vgl->DeleteProgramsARB = glDeleteProgramsARB;
+ vgl->ProgramLocalParameter4fvARB = glProgramLocalParameter4fvARB;
+#endif
+ supports_fp = vgl->GenProgramsARB &&
+ vgl->BindProgramARB &&
+ vgl->ProgramStringARB &&
+ vgl->DeleteProgramsARB &&
+ vgl->ProgramLocalParameter4fvARB;
+ }
- p_sys->p_vout->pf_init( p_sys->p_vout );
+ bool supports_multitexture = false;
+ GLint max_texture_units = 0;
+ if (HasExtension(extensions, "GL_ARB_multitexture")) {
+#if !defined(MACOS_OPENGL)
+ vgl->ActiveTextureARB = (PFNGLACTIVETEXTUREARBPROC)vlc_gl_GetProcAddress(vgl->gl, "glActiveTextureARB");
+ vgl->MultiTexCoord2fARB = (PFNGLMULTITEXCOORD2FARBPROC)vlc_gl_GetProcAddress(vgl->gl, "glMultiTexCoord2fARB");
+#else
+ vgl->ActiveTextureARB = glActiveTextureARB;
+ vgl->MultiTexCoord2fARB = glMultiTexCoord2fARB;
+#endif
+ supports_multitexture = vgl->ActiveTextureARB &&
+ vgl->MultiTexCoord2fARB;
+ if (supports_multitexture)
+ glGetIntegerv(GL_MAX_TEXTURE_UNITS_ARB, &max_texture_units);
+ }
- p_sys->gl.lock = OpenglLock;
- p_sys->gl.unlock = OpenglUnlock;
- p_sys->gl.swap = OpenglSwap;
- p_sys->gl.sys = p_sys->p_vout;
+ /* Initialize with default chroma */
+ vgl->fmt = *fmt;
+#if USE_OPENGL_ES
+ vgl->fmt.i_chroma = VLC_CODEC_RGB16;
+# if defined(WORDS_BIGENDIAN)
+ vgl->fmt.i_rmask = 0x001f;
+ vgl->fmt.i_gmask = 0x07e0;
+ vgl->fmt.i_bmask = 0xf800;
+# else
+ vgl->fmt.i_rmask = 0xf800;
+ vgl->fmt.i_gmask = 0x07e0;
+ vgl->fmt.i_bmask = 0x001f;
+# endif
+ vgl->tex_target = GL_TEXTURE_2D;
+ vgl->tex_format = GL_RGB;
+ vgl->tex_internal = GL_RGB;
+ vgl->tex_type = GL_UNSIGNED_SHORT_5_6_5;
+#else
+ vgl->fmt.i_chroma = VLC_CODEC_RGB32;
+# if defined(WORDS_BIGENDIAN)
+ vgl->fmt.i_rmask = 0xff000000;
+ vgl->fmt.i_gmask = 0x00ff0000;
+ vgl->fmt.i_bmask = 0x0000ff00;
+# else
+ vgl->fmt.i_rmask = 0x000000ff;
+ vgl->fmt.i_gmask = 0x0000ff00;
+ vgl->fmt.i_bmask = 0x00ff0000;
+# endif
+ vgl->tex_target = GL_TEXTURE_2D;
+ vgl->tex_format = GL_RGBA;
+ vgl->tex_internal = GL_RGBA;
+ vgl->tex_type = GL_UNSIGNED_BYTE;
+#endif
+ /* Use YUV if possible and needed */
+ bool need_fs_yuv = false;
+ float yuv_range_correction = 1.0;
+ if (supports_fp && supports_multitexture && max_texture_units >= 3 &&
+ vlc_fourcc_IsYUV(fmt->i_chroma) && !vlc_fourcc_IsYUV(vgl->fmt.i_chroma)) {
+ const vlc_fourcc_t *list = vlc_fourcc_GetYUVFallback(fmt->i_chroma);
+ while (*list) {
+ const vlc_chroma_description_t *dsc = vlc_fourcc_GetChromaDescription(*list);
+ if (dsc && dsc->plane_count == 3 && dsc->pixel_size == 1) {
+ need_fs_yuv = true;
+ vgl->fmt = *fmt;
+ vgl->fmt.i_chroma = *list;
+ vgl->tex_format = GL_LUMINANCE;
+ vgl->tex_internal = GL_LUMINANCE;
+ vgl->tex_type = GL_UNSIGNED_BYTE;
+ yuv_range_correction = 1.0;
+ break;
+ } else if (dsc && dsc->plane_count == 3 && dsc->pixel_size == 2 &&
+ IsLuminance16Supported(vgl->tex_target)) {
+ need_fs_yuv = true;
+ vgl->fmt = *fmt;
+ vgl->fmt.i_chroma = *list;
+ vgl->tex_format = GL_LUMINANCE;
+ vgl->tex_internal = GL_LUMINANCE16;
+ vgl->tex_type = GL_UNSIGNED_SHORT;
+ yuv_range_correction = (float)((1 << 16) - 1) / ((1 << dsc->pixel_bits) - 1);
+ break;
+ }
+ list++;
+ }
+ }
- video_format_t fmt;
- video_format_Setup( &fmt,
- p_vout->render.i_chroma,
- p_vout->render.i_width,
- p_vout->render.i_height,
- p_vout->render.i_aspect );
+ vgl->chroma = vlc_fourcc_GetChromaDescription(vgl->fmt.i_chroma);
+ vgl->use_multitexture = vgl->chroma->plane_count > 1;
+ bool supports_npot = false;
+#if USE_OPENGL_ES == 2
+ supports_npot = true;
+#else
+ supports_npot |= HasExtension(extensions, "GL_APPLE_texture_2D_limited_npot") ||
+ HasExtension(extensions, "GL_ARB_texture_non_power_of_two");
+#endif
- if( vout_display_opengl_Init( &p_sys->vgl, &fmt, &p_sys->gl ) )
- {
- I_OUTPUTPICTURES = 0;
- return VLC_EGENERIC;
+ /* Texture size */
+ for (unsigned j = 0; j < vgl->chroma->plane_count; j++) {
+ int w = vgl->fmt.i_width * vgl->chroma->p[j].w.num / vgl->chroma->p[j].w.den;
+ int h = vgl->fmt.i_height * vgl->chroma->p[j].h.num / vgl->chroma->p[j].h.den;
+ if (supports_npot) {
+ vgl->tex_width[j] = w;
+ vgl->tex_height[j] = h;
+ }
+ else {
+ /* A texture must have a size aligned on a power of 2 */
+ vgl->tex_width[j] = GetAlignedSize(w);
+ vgl->tex_height[j] = GetAlignedSize(h);
+ }
}
- p_sys->p_pool = vout_display_opengl_GetPool( &p_sys->vgl );
- if( !p_sys->p_pool )
- {
- vout_display_opengl_Clean( &p_sys->vgl );
- I_OUTPUTPICTURES = 0;
- return VLC_EGENERIC;
+
+ /* Build fragment program if needed */
+ vgl->program = 0;
+ vgl->local_count = 0;
+ if (supports_fp) {
+ char *code = NULL;
+
+ if (need_fs_yuv) {
+ /* [R/G/B][Y U V O] from TV range to full range
+ * XXX we could also do hue/brightness/constrast/gamma
+ * by simply changing the coefficients
+ */
+ const float matrix_bt601_tv2full[3][4] = {
+ { 1.1640, 0.0000, 1.4030, -0.7773 },
+ { 1.1640, -0.3440, -0.7140, 0.4580 },
+ { 1.1640, 1.7730, 0.0000, -0.9630 },
+ };
+ const float matrix_bt709_tv2full[3][4] = {
+ { 1.1640, 0.0000, 1.5701, -0.8612 },
+ { 1.1640, -0.1870, -0.4664, 0.2549 },
+ { 1.1640, 1.8556, 0.0000, -1.0045 },
+ };
+ const float (*matrix)[4] = fmt->i_height > 576 ? matrix_bt709_tv2full
+ : matrix_bt601_tv2full;
+
+ /* Basic linear YUV -> RGB conversion using bilinear interpolation */
+ const char *template_yuv =
+ "!!ARBfp1.0"
+ "OPTION ARB_precision_hint_fastest;"
+
+ "TEMP src;"
+ "TEX src.x, fragment.texcoord[0], texture[0], 2D;"
+ "TEX src.%c, fragment.texcoord[1], texture[1], 2D;"
+ "TEX src.%c, fragment.texcoord[2], texture[2], 2D;"
+
+ "PARAM coefficient[4] = { program.local[0..3] };"
+
+ "TEMP tmp;"
+ "MAD tmp.rgb, src.xxxx, coefficient[0], coefficient[3];"
+ "MAD tmp.rgb, src.yyyy, coefficient[1], tmp;"
+ "MAD result.color.rgb, src.zzzz, coefficient[2], tmp;"
+ "END";
+ bool swap_uv = vgl->fmt.i_chroma == VLC_CODEC_YV12 ||
+ vgl->fmt.i_chroma == VLC_CODEC_YV9;
+ if (asprintf(&code, template_yuv,
+ swap_uv ? 'z' : 'y',
+ swap_uv ? 'y' : 'z') < 0)
+ code = NULL;
+
+ for (int i = 0; i < 4; i++) {
+ float correction = i < 3 ? yuv_range_correction : 1.0;
+ for (int j = 0; j < 4; j++) {
+ vgl->local_value[vgl->local_count + i][j] = j < 3 ? correction * matrix[j][i] : 0.0;
+ }
+ }
+ vgl->local_count += 4;
+ }
+ if (code) {
+ // Here you have shaders
+ vgl->GenProgramsARB(1, &vgl->program);
+ vgl->BindProgramARB(GL_FRAGMENT_PROGRAM_ARB, vgl->program);
+ vgl->ProgramStringARB(GL_FRAGMENT_PROGRAM_ARB,
+ GL_PROGRAM_FORMAT_ASCII_ARB,
+ strlen(code), (const GLbyte*)code);
+ if (glGetError() == GL_INVALID_OPERATION) {
+ /* FIXME if the program was needed for YUV, the video will be broken */
+#if 0
+ GLint position;
+ glGetIntegerv(GL_PROGRAM_ERROR_POSITION_ARB, &position);
+
+ const char *msg = (const char *)glGetString(GL_PROGRAM_ERROR_STRING_ARB);
+ fprintf(stderr, "GL_INVALID_OPERATION: error at %d: %s\n", position, msg);
+#endif
+ vgl->DeleteProgramsARB(1, &vgl->program);
+ vgl->program = 0;
+ }
+ free(code);
+ }
}
/* */
- p_vout->output.i_chroma = fmt.i_chroma;
- p_vout->output.i_rmask = fmt.i_rmask;
- p_vout->output.i_gmask = fmt.i_gmask;
- p_vout->output.i_bmask = fmt.i_bmask;
-
- /* Since OpenGL can do rescaling for us, stick to the default
- * coordinates and aspect. */
- p_vout->output.i_width = p_vout->render.i_width;
- p_vout->output.i_height = p_vout->render.i_height;
- p_vout->output.i_aspect = p_vout->render.i_aspect;
+ glDisable(GL_BLEND);
+ glDisable(GL_DEPTH_TEST);
+ glDepthMask(GL_FALSE);
+ glDisable(GL_CULL_FACE);
+ glClearColor(0.0f, 0.0f, 0.0f, 1.0f);
+ glClear(GL_COLOR_BUFFER_BIT);
- p_vout->fmt_out = p_vout->fmt_in;
- p_vout->fmt_out.i_chroma = p_vout->output.i_chroma;
+ vlc_gl_Unlock(vgl->gl);
/* */
- p_sys->p_current = picture_pool_Get( p_sys->p_pool );
- msg_Err(p_vout, "pitch %d visible_p %d w %d",
- p_sys->p_current->p[0].i_pitch,
- p_sys->p_current->p[0].i_visible_pitch,
- p_vout->render.i_width );
- p_vout->p_picture[0] = *p_sys->p_current;
- p_vout->p_picture[0].i_status = DESTROYED_PICTURE;
- p_vout->p_picture[0].i_type = DIRECT_PICTURE;
- p_vout->p_picture[0].i_refcount = 0;
- p_vout->p_picture[0].p_sys = NULL;
- PP_OUTPUTPICTURE[0] = &p_vout->p_picture[0];
-
- I_OUTPUTPICTURES = 1;
+ for (int i = 0; i < VLCGL_TEXTURE_COUNT; i++) {
+ for (int j = 0; j < PICTURE_PLANE_MAX; j++)
+ vgl->texture[i][j] = 0;
+ }
+ vgl->region_count = 0;
+ vgl->region = NULL;
+ vgl->pool = NULL;
+
+ *fmt = vgl->fmt;
+ if (subpicture_chromas) {
+ *subpicture_chromas = NULL;
+#if !USE_OPENGL_ES
+ if (supports_npot)
+ *subpicture_chromas = gl_subpicture_chromas;
+#endif
+ }
+ return vgl;
+}
- return VLC_SUCCESS;
+void vout_display_opengl_Delete(vout_display_opengl_t *vgl)
+{
+ /* */
+ if (!vlc_gl_Lock(vgl->gl)) {
+
+ glFinish();
+ glFlush();
+ for (int i = 0; i < VLCGL_TEXTURE_COUNT; i++)
+ glDeleteTextures(vgl->chroma->plane_count, vgl->texture[i]);
+ for (int i = 0; i < vgl->region_count; i++) {
+ if (vgl->region[i].texture)
+ glDeleteTextures(1, &vgl->region[i].texture);
+ }
+ free(vgl->region);
+
+ if (vgl->program)
+ vgl->DeleteProgramsARB(1, &vgl->program);
+
+ vlc_gl_Unlock(vgl->gl);
+ }
+ if (vgl->pool)
+ picture_pool_Delete(vgl->pool);
+ free(vgl);
}
-/*****************************************************************************
- * End: terminate GLX video thread output method
- *****************************************************************************/
-static void End( vout_thread_t *p_vout )
+picture_pool_t *vout_display_opengl_GetPool(vout_display_opengl_t *vgl, unsigned requested_count)
{
- vout_sys_t *p_sys = p_vout->p_sys;
+ if (vgl->pool)
+ return vgl->pool;
+
+ /* Allocate our pictures */
+ picture_t *picture[VLCGL_PICTURE_MAX] = {NULL, };
+ unsigned count = 0;
- if( I_OUTPUTPICTURES > 0 )
- {
+ for (count = 0; count < __MIN(VLCGL_PICTURE_MAX, requested_count); count++) {
+ picture[count] = picture_NewFromFormat(&vgl->fmt);
+ if (!picture[count])
+ break;
+ }
+ if (count <= 0)
+ return NULL;
+
+ /* Wrap the pictures into a pool */
+ picture_pool_configuration_t cfg;
+ memset(&cfg, 0, sizeof(cfg));
+ cfg.picture_count = count;
+ cfg.picture = picture;
+ vgl->pool = picture_pool_NewExtended(&cfg);
+ if (!vgl->pool)
+ goto error;
+
+ /* Allocates our textures */
+ if (vlc_gl_Lock(vgl->gl))
+ return vgl->pool;
+
+ for (int i = 0; i < VLCGL_TEXTURE_COUNT; i++) {
+ glGenTextures(vgl->chroma->plane_count, vgl->texture[i]);
+ for (unsigned j = 0; j < vgl->chroma->plane_count; j++) {
+ if (vgl->use_multitexture)
+ vgl->ActiveTextureARB(GL_TEXTURE0_ARB + j);
+ glBindTexture(vgl->tex_target, vgl->texture[i][j]);
+
+#if !USE_OPENGL_ES
+ /* Set the texture parameters */
+ glTexParameterf(vgl->tex_target, GL_TEXTURE_PRIORITY, 1.0);
+ glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
+#endif
- if( p_sys->p_current )
- picture_Release( p_sys->p_current );
- vout_display_opengl_Clean( &p_sys->vgl );
+ glTexParameteri(vgl->tex_target, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
+ glTexParameteri(vgl->tex_target, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
+ glTexParameteri(vgl->tex_target, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
+ glTexParameteri(vgl->tex_target, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
- p_vout->p_picture[0].i_status = FREE_PICTURE;
- I_OUTPUTPICTURES = 0;
+ /* Call glTexImage2D only once, and use glTexSubImage2D later */
+ glTexImage2D(vgl->tex_target, 0,
+ vgl->tex_internal, vgl->tex_width[j], vgl->tex_height[j],
+ 0, vgl->tex_format, vgl->tex_type, NULL);
+ }
}
- /* We must release the opengl provider here: opengl requiere init and end
- to be done in the same thread */
- module_unneed( p_sys->p_vout, p_sys->p_vout->p_module );
- vlc_object_release( p_sys->p_vout );
-}
+ vlc_gl_Unlock(vgl->gl);
-/*****************************************************************************
- * Destroy: destroy GLX video thread output method
- *****************************************************************************
- * Terminate an output method created by CreateVout
- *****************************************************************************/
-static void DestroyVout( vlc_object_t *p_this )
-{
- vout_thread_t *p_vout = (vout_thread_t *)p_this;
- vout_sys_t *p_sys = p_vout->p_sys;
+ return vgl->pool;
- free( p_sys );
+error:
+ for (unsigned i = 0; i < count; i++)
+ picture_Delete(picture[i]);
+ return NULL;
}
-/*****************************************************************************
- * Manage: handle Sys events
- *****************************************************************************
- * This function should be called regularly by video output thread. It returns
- * a non null value if an error occurred.
- *****************************************************************************/
-static int Manage( vout_thread_t *p_vout )
+int vout_display_opengl_Prepare(vout_display_opengl_t *vgl,
+ picture_t *picture, subpicture_t *subpicture)
{
- vout_sys_t *p_sys = p_vout->p_sys;
- int i_ret, i_fullscreen_change;
-
- i_fullscreen_change = ( p_vout->i_changes & VOUT_FULLSCREEN_CHANGE );
-
- p_vout->fmt_out.i_x_offset = p_sys->p_vout->fmt_in.i_x_offset =
- p_vout->fmt_in.i_x_offset;
- p_vout->fmt_out.i_y_offset = p_sys->p_vout->fmt_in.i_y_offset =
- p_vout->fmt_in.i_y_offset;
- p_vout->fmt_out.i_visible_width = p_sys->p_vout->fmt_in.i_visible_width =
- p_vout->fmt_in.i_visible_width;
- p_vout->fmt_out.i_visible_height = p_sys->p_vout->fmt_in.i_visible_height =
- p_vout->fmt_in.i_visible_height;
- p_vout->fmt_out.i_aspect = p_sys->p_vout->fmt_in.i_aspect =
- p_vout->fmt_in.i_aspect;
- p_vout->fmt_out.i_sar_num = p_sys->p_vout->fmt_in.i_sar_num =
- p_vout->fmt_in.i_sar_num;
- p_vout->fmt_out.i_sar_den = p_sys->p_vout->fmt_in.i_sar_den =
- p_vout->fmt_in.i_sar_den;
- p_vout->output.i_aspect = p_vout->fmt_in.i_aspect;
-
- p_sys->p_vout->i_changes = p_vout->i_changes;
- i_ret = p_sys->p_vout->pf_manage( p_sys->p_vout );
- p_vout->i_changes = p_sys->p_vout->i_changes;
+ /* On Win32/GLX, we do this the usual way:
+ + Fill the buffer with new content,
+ + Reload the texture,
+ + Use the texture.
-#ifdef __APPLE__
- /* On OS X, we create the window and the GL view when entering
- fullscreen - the textures have to be inited again */
- if( i_fullscreen_change )
- {
- /* FIXME should we release p_current ? */
- vout_display_opengl_ResetTextures( &p_sys->vgl );
+ On OS X with VRAM or AGP texturing, the order has to be:
+ + Reload the texture,
+ + Fill the buffer with new content,
+ + Use the texture.
+
+ (Thanks to gcc from the Arstechnica forums for the tip)
+
+ Therefore on OSX, we have to use two buffers and textures and use a
+ lock(/unlock) managed picture pool.
+ */
+
+ if (vlc_gl_Lock(vgl->gl))
+ return VLC_EGENERIC;
+
+ /* Update the texture */
+ for (unsigned j = 0; j < vgl->chroma->plane_count; j++) {
+ const int plane = vgl->fmt.i_chroma == VLC_CODEC_YV12 && j > 0 ? (3 - j) : j;
+ if (vgl->use_multitexture)
+ vgl->ActiveTextureARB(GL_TEXTURE0_ARB + j);
+ glBindTexture(vgl->tex_target, vgl->texture[0][j]);
+ glPixelStorei(GL_UNPACK_ROW_LENGTH, picture->p[plane].i_pitch / picture->p[plane].i_pixel_pitch);
+ glTexSubImage2D(vgl->tex_target, 0,
+ 0, 0,
+ vgl->fmt.i_width * vgl->chroma->p[plane].w.num / vgl->chroma->p[plane].w.den,
+ vgl->fmt.i_height * vgl->chroma->p[plane].h.num / vgl->chroma->p[plane].h.den,
+ vgl->tex_format, vgl->tex_type, picture->p[plane].p_pixels);
}
-#endif
-// to align in real time in OPENGL
- if (p_sys->p_vout->i_alignment != p_vout->i_alignment)
- {
- p_vout->i_changes |= VOUT_CROP_CHANGE; //to force change
- p_sys->p_vout->i_alignment = p_vout->i_alignment;
+ int last_count = vgl->region_count;
+ gl_region_t *last = vgl->region;
+
+ vgl->region_count = 0;
+ vgl->region = NULL;
+
+ if (subpicture) {
+
+ int count = 0;
+ for (subpicture_region_t *r = subpicture->p_region; r; r = r->p_next)
+ count++;
+
+ vgl->region_count = count;
+ vgl->region = calloc(count, sizeof(*vgl->region));
+
+ if (vgl->use_multitexture)
+ vgl->ActiveTextureARB(GL_TEXTURE0_ARB + 0);
+ int i = 0;
+ for (subpicture_region_t *r = subpicture->p_region; r; r = r->p_next, i++) {
+ gl_region_t *glr = &vgl->region[i];
+
+ glr->format = GL_RGBA;
+ glr->type = GL_UNSIGNED_BYTE;
+ glr->width = r->fmt.i_visible_width;
+ glr->height = r->fmt.i_visible_height;
+ glr->alpha = (float)subpicture->i_alpha * r->i_alpha / 255 / 255;
+ glr->left = 2.0 * (r->i_x ) / subpicture->i_original_picture_width - 1.0;
+ glr->top = -2.0 * (r->i_y ) / subpicture->i_original_picture_height + 1.0;
+ glr->right = 2.0 * (r->i_x + r->fmt.i_visible_width ) / subpicture->i_original_picture_width - 1.0;
+ glr->bottom = -2.0 * (r->i_y + r->fmt.i_visible_height) / subpicture->i_original_picture_height + 1.0;
+
+ glr->texture = 0;
+ for (int j = 0; j < last_count; j++) {
+ if (last[j].texture &&
+ last[j].width == glr->width &&
+ last[j].height == glr->height &&
+ last[j].format == glr->format &&
+ last[j].type == glr->type) {
+ glr->texture = last[j].texture;
+ memset(&last[j], 0, sizeof(last[j]));
+ break;
+ }
+ }
+
+ if (glr->texture) {
+ glBindTexture(GL_TEXTURE_2D, glr->texture);
+ /* TODO set GL_UNPACK_ALIGNMENT */
+ glPixelStorei(GL_UNPACK_ROW_LENGTH, r->p_picture->p->i_pitch / r->p_picture->p->i_pixel_pitch);
+ glTexSubImage2D(GL_TEXTURE_2D, 0,
+ 0, 0, glr->width, glr->height,
+ glr->format, glr->type, r->p_picture->p->p_pixels);
+ } else {
+ glGenTextures(1, &glr->texture);
+ glBindTexture(GL_TEXTURE_2D, glr->texture);
+ glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_PRIORITY, 1.0);
+ glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_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);
+ /* TODO set GL_UNPACK_ALIGNMENT */
+ glPixelStorei(GL_UNPACK_ROW_LENGTH, r->p_picture->p->i_pitch / r->p_picture->p->i_pixel_pitch);
+ glTexImage2D(GL_TEXTURE_2D, 0, glr->format,
+ glr->width, glr->height, 0, glr->format, glr->type,
+ r->p_picture->p->p_pixels);
+ }
+ }
+ }
+ for (int i = 0; i < last_count; i++) {
+ if (last[i].texture)
+ glDeleteTextures(1, &last[i].texture);
}
+ free(last);
- /* forward signal that autoscale toggle has changed */
- if (p_vout->i_changes & VOUT_SCALE_CHANGE )
- {
- p_vout->i_changes &= ~VOUT_SCALE_CHANGE;
+ vlc_gl_Unlock(vgl->gl);
+ VLC_UNUSED(subpicture);
+ return VLC_SUCCESS;
+}
- p_sys->p_vout->i_changes |= VOUT_SCALE_CHANGE;
+int vout_display_opengl_Display(vout_display_opengl_t *vgl,
+ const video_format_t *source)
+{
+ if (vlc_gl_Lock(vgl->gl))
+ return VLC_EGENERIC;
+
+ /* glTexCoord works differently with GL_TEXTURE_2D and
+ GL_TEXTURE_RECTANGLE_EXT */
+ float left[PICTURE_PLANE_MAX];
+ float top[PICTURE_PLANE_MAX];
+ float right[PICTURE_PLANE_MAX];
+ float bottom[PICTURE_PLANE_MAX];
+ for (unsigned j = 0; j < vgl->chroma->plane_count; j++) {
+ float scale_w, scale_h;
+ if (vgl->tex_target == GL_TEXTURE_2D) {
+ scale_w = (float)vgl->chroma->p[j].w.num / vgl->chroma->p[j].w.den / vgl->tex_width[j];
+ scale_h = (float)vgl->chroma->p[j].h.num / vgl->chroma->p[j].h.den / vgl->tex_height[j];
+
+ } else {
+ scale_w = 1.0;
+ scale_h = 1.0;
+ }
+ left[j] = (source->i_x_offset + 0 ) * scale_w;
+ top[j] = (source->i_y_offset + 0 ) * scale_h;
+ right[j] = (source->i_x_offset + source->i_visible_width ) * scale_w;
+ bottom[j] = (source->i_y_offset + source->i_visible_height) * scale_h;
}
- /* forward signal that scale has changed */
- if (p_vout->i_changes & VOUT_ZOOM_CHANGE )
- {
- p_vout->i_changes &= ~VOUT_ZOOM_CHANGE;
- p_sys->p_vout->i_changes |= VOUT_ZOOM_CHANGE;
+ /* Why drawing here and not in Render()? Because this way, the
+ OpenGL providers can call vout_display_opengl_Display to force redraw.i
+ Currently, the OS X provider uses it to get a smooth window resizing */
+
+ glClear(GL_COLOR_BUFFER_BIT);
+
+ if (vgl->program) {
+ glEnable(GL_FRAGMENT_PROGRAM_ARB);
+ for (int i = 0; i < vgl->local_count; i++)
+ vgl->ProgramLocalParameter4fvARB(GL_FRAGMENT_PROGRAM_ARB, i, vgl->local_value[i]);
+ } else {
+ glEnable(vgl->tex_target);
}
+#if USE_OPENGL_ES
+ static const GLfloat vertexCoord[] = {
+ -1.0f, -1.0f,
+ 1.0f, -1.0f,
+ -1.0f, 1.0f,
+ 1.0f, 1.0f,
+ };
+
+ const GLfloat textureCoord[8] = {
+ left[0], bottom[0],
+ right[0], bottom[0],
+ left[0], top[0],
+ right[0], top[0]
+ };
+
+ glEnableClientState(GL_VERTEX_ARRAY);
+ glEnableClientState(GL_TEXTURE_COORD_ARRAY);
+ glVertexPointer(2, GL_FLOAT, 0, vertexCoord);
+ glTexCoordPointer(2, GL_FLOAT, 0, textureCoord);
+
+ glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
+#else
+ for (unsigned j = 0; j < vgl->chroma->plane_count; j++) {
+ if (vgl->use_multitexture)
+ vgl->ActiveTextureARB(GL_TEXTURE0_ARB + j);
+ glBindTexture(vgl->tex_target, vgl->texture[0][j]);
+ }
+ glBegin(GL_POLYGON);
- return i_ret;
-}
+ glTexCoord2f(left[0], top[0]);
+ for (unsigned j = 1; j < vgl->chroma->plane_count; j++)
+ vgl->MultiTexCoord2fARB(GL_TEXTURE0_ARB + j, left[j], top[j]);
+ glVertex2f(-1.0, 1.0);
-/*****************************************************************************
- * Render: render previously calculated output
- *****************************************************************************/
-static void Render( vout_thread_t *p_vout, picture_t *p_pic )
-{
- vout_sys_t *p_sys = p_vout->p_sys;
+ glTexCoord2f(right[0], top[0]);
+ for (unsigned j = 1; j < vgl->chroma->plane_count; j++)
+ vgl->MultiTexCoord2fARB(GL_TEXTURE0_ARB + j, right[j], top[j]);
+ glVertex2f( 1.0, 1.0);
- if( p_sys->p_current )
- {
- assert( p_sys->p_current->p[0].p_pixels == p_pic->p[0].p_pixels );
+ glTexCoord2f(right[0], bottom[0]);
+ for (unsigned j = 1; j < vgl->chroma->plane_count; j++)
+ vgl->MultiTexCoord2fARB(GL_TEXTURE0_ARB + j, right[j], bottom[j]);
+ glVertex2f( 1.0, -1.0);
- vout_display_opengl_Prepare( &p_sys->vgl, p_sys->p_current );
- picture_Release( p_sys->p_current );
- }
+ glTexCoord2f(left[0], bottom[0]);
+ for (unsigned j = 1; j < vgl->chroma->plane_count; j++)
+ vgl->MultiTexCoord2fARB(GL_TEXTURE0_ARB + j, left[j], bottom[j]);
+ glVertex2f(-1.0, -1.0);
- p_sys->p_current = picture_pool_Get( p_sys->p_pool );
- if( p_sys->p_current )
- p_pic->p[0].p_pixels = p_sys->p_current->p[0].p_pixels;
+ glEnd();
+#endif
- VLC_UNUSED( p_pic );
-}
+ if (vgl->program)
+ glDisable(GL_FRAGMENT_PROGRAM_ARB);
+ else
+ glDisable(vgl->tex_target);
-/*****************************************************************************
- * DisplayVideo: displays previously rendered output
- *****************************************************************************/
-static void DisplayVideo( vout_thread_t *p_vout, picture_t *p_pic )
-{
- vout_sys_t *p_sys = p_vout->p_sys;
+#if !USE_OPENGL_ES
+ if (vgl->use_multitexture)
+ vgl->ActiveTextureARB(GL_TEXTURE0_ARB + 0);
+ glEnable(GL_TEXTURE_2D);
+ glEnable(GL_BLEND);
+ glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
+ for (int i = 0; i < vgl->region_count; i++) {
+ gl_region_t *glr = &vgl->region[i];
- vout_display_opengl_Display( &p_sys->vgl, &p_vout->fmt_out );
- VLC_UNUSED( p_pic );
-}
+ glBindTexture(GL_TEXTURE_2D, glr->texture);
-/*****************************************************************************
- * Control: control facility for the vout
- *****************************************************************************/
-static int Control( vout_thread_t *p_vout, int i_query, va_list args )
-{
- vout_sys_t *p_sys = p_vout->p_sys;
+ glBegin(GL_POLYGON);
- if( p_sys->p_vout->pf_control )
- return p_sys->p_vout->pf_control( p_sys->p_vout, i_query, args );
- return VLC_EGENERIC;
-}
+ glColor4f(1.0, 1.0, 1.0, glr->alpha);
-/*****************************************************************************
- * SendEvents: forward mouse and keyboard events to the parent p_vout
- *****************************************************************************/
-static int SendEvents( vlc_object_t *p_this, char const *psz_var,
- vlc_value_t oldval, vlc_value_t newval, void *_p_vout )
-{
- VLC_UNUSED(p_this); VLC_UNUSED(oldval);
- return var_Set( (vlc_object_t *)_p_vout, psz_var, newval );
+ glTexCoord2f(0.0, 0.0);
+ glVertex2f(glr->left, glr->top);
+
+ glTexCoord2f(1.0, 0.0);
+ glVertex2f(glr->right, glr->top);
+
+ glTexCoord2f(1.0, 1.0);
+ glVertex2f(glr->right, glr->bottom);
+
+ glTexCoord2f(0.0, 1.0);
+ glVertex2f(glr->left, glr->bottom);
+
+ glEnd();
+ }
+ glDisable(GL_BLEND);
+ glDisable(GL_TEXTURE_2D);
+#endif
+
+ vlc_gl_Swap(vgl->gl);
+
+ vlc_gl_Unlock(vgl->gl);
+ return VLC_SUCCESS;
}