X-Git-Url: https://main.carlh.net/gitweb/?a=blobdiff_plain;f=src%2Fwx%2Fgl_video_view.cc;fp=src%2Fwx%2Fgl_video_view.cc;h=9f5865e35640784591e9f44f3ef6427ebb444dd8;hb=23aa3071850761144798112a5aaea61304de8586;hp=239f0ece0ff40f7ed6bbdbda1176194a8103c966;hpb=4bbcf55dc0e644c20b1eaabee2da3219c4e7635f;p=dcpomatic.git diff --git a/src/wx/gl_video_view.cc b/src/wx/gl_video_view.cc index 239f0ece0..9f5865e35 100644 --- a/src/wx/gl_video_view.cc +++ b/src/wx/gl_video_view.cc @@ -285,16 +285,20 @@ GLVideoView::ensure_context () /* Offset of video texture triangles in indices */ static constexpr int indices_video_texture = 0; +/* Offset of subtitle texture triangles in indices */ +static constexpr int indices_subtitle_texture = 6; /* Offset of border lines in indices */ -static constexpr int indices_border = 6; +static constexpr int indices_border = 12; static constexpr unsigned int indices[] = { 0, 1, 3, // video texture triangle #1 1, 2, 3, // video texture triangle #2 - 4, 5, // border line #1 - 5, 6, // border line #2 - 6, 7, // border line #3 - 7, 4, // border line #4 + 4, 5, 7, // subtitle texture triangle #1 + 5, 6, 7, // subtitle texture triangle #2 + 8, 9, // border line #1 + 9, 10, // border line #2 + 10, 11, // border line #3 + 11, 8, // border line #4 }; @@ -428,6 +432,12 @@ GLVideoView::setup_shaders () glUniformMatrix4fv (colour_conversion, 1, GL_TRUE, gl_matrix); glLineWidth (2.0f); + glEnable (GL_BLEND); + glBlendFunc (GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA); + + /* Reserve space for the GL_ARRAY_BUFFER */ + glBufferData(GL_ARRAY_BUFFER, 12 * 5 * sizeof(float), nullptr, GL_STATIC_DRAW); + check_gl_error ("glBufferData"); } @@ -464,9 +474,15 @@ GLVideoView::draw (Position, dcp::Size) glBindVertexArray(_vao); check_gl_error ("glBindVertexArray"); glUniform1i(_fragment_type, _optimise_for_j2k ? 1 : 2); - glDrawElements (GL_TRIANGLES, 6, GL_UNSIGNED_INT, reinterpret_cast(indices_video_texture)); + _video_texture->bind(); + glDrawElements (GL_TRIANGLES, 6, GL_UNSIGNED_INT, reinterpret_cast(indices_video_texture * sizeof(int))); + if (_have_subtitle_to_render) { + glUniform1i(_fragment_type, 2); + _subtitle_texture->bind(); + glDrawElements (GL_TRIANGLES, 6, GL_UNSIGNED_INT, reinterpret_cast(indices_subtitle_texture * sizeof(int))); + } if (_viewer->outline_content()) { - glUniform1i(_fragment_type, 1); + glUniform1i(_fragment_type, 0); glDrawElements (GL_LINES, 8, GL_UNSIGNED_INT, reinterpret_cast(indices_border * sizeof(int))); check_gl_error ("glDrawElements"); } @@ -491,51 +507,92 @@ GLVideoView::set_image (shared_ptr pv) */ /* XXX: video range conversion */ - /* XXX: subs */ - auto const changed = _video_texture->set (video); + _video_texture->set (video); - if (changed) { - auto const canvas_size = _canvas_size.load(); - int const canvas_width = canvas_size.GetWidth(); - int const canvas_height = canvas_size.GetHeight(); + auto const text = pv->text(); + _have_subtitle_to_render = static_cast(text) && _optimise_for_j2k; + if (_have_subtitle_to_render) { + /* opt: only do this if it's a new subtitle? */ + DCPOMATIC_ASSERT (!text->image->aligned()); + _subtitle_texture->set (text->image); + } - float const video_x = float(video->size().width) / canvas_width; - float const video_y = float(video->size().height) / canvas_height; - auto x_pixels_to_gl = [canvas_width](int x) { - return (x * 2.0f / canvas_width) - 1.0f; - }; + auto const canvas_size = _canvas_size.load(); + int const canvas_width = canvas_size.GetWidth(); + int const canvas_height = canvas_size.GetHeight(); + auto inter_position = player_video().first->inter_position(); + auto inter_size = player_video().first->inter_size(); + auto out_size = player_video().first->out_size(); - auto y_pixels_to_gl = [canvas_height](int y) { - return (y * 2.0f / canvas_height) - 1.0f; + _last_canvas_size.set_next (canvas_size); + _last_video_size.set_next (video->size()); + _last_inter_position.set_next (inter_position); + _last_inter_size.set_next (inter_size); + _last_out_size.set_next (out_size); + + auto x_pixels_to_gl = [canvas_width](int x) { + return (x * 2.0f / canvas_width) - 1.0f; + }; + + auto y_pixels_to_gl = [canvas_height](int y) { + return (y * 2.0f / canvas_height) - 1.0f; + }; + + if (_last_canvas_size.changed() || _last_inter_position.changed() || _last_inter_size.changed() || _last_out_size.changed()) { + float const video_x1 = x_pixels_to_gl(_optimise_for_j2k ? inter_position.x : 0); + float const video_x2 = x_pixels_to_gl(_optimise_for_j2k ? (inter_position.x + inter_size.width) : out_size.width); + float const video_y1 = y_pixels_to_gl(_optimise_for_j2k ? inter_position.y : 0); + float const video_y2 = y_pixels_to_gl(_optimise_for_j2k ? (inter_position.y + inter_size.height) : out_size.height); + float video_vertices[] = { + // positions // texture coords + video_x2, video_y2, 0.0f, 1.0f, 0.0f, // video texture top right (index 0) + video_x2, video_y1, 0.0f, 1.0f, 1.0f, // video texture bottom right (index 1) + video_x1, video_y1, 0.0f, 0.0f, 1.0f, // video texture bottom left (index 2) + video_x1, video_y2, 0.0f, 0.0f, 0.0f, // video texture top left (index 3) }; - auto inter_position = player_video().first->inter_position(); - auto inter_size = player_video().first->inter_size(); + glBufferSubData (GL_ARRAY_BUFFER, 0, sizeof(video_vertices), video_vertices); + check_gl_error ("glBufferSubData (video)"); - float const border_x1 = x_pixels_to_gl (inter_position.x) + 1.0f - video_x; - float const border_y1 = y_pixels_to_gl (inter_position.y) + 1.0f - video_y; - float const border_x2 = x_pixels_to_gl (inter_position.x + inter_size.width) + 1.0f - video_x; - float const border_y2 = y_pixels_to_gl (inter_position.y + inter_size.height) + 1.0f - video_y; + float const border_x1 = x_pixels_to_gl(inter_position.x); + float const border_y1 = y_pixels_to_gl(inter_position.y); + float const border_x2 = x_pixels_to_gl(inter_position.x + inter_size.width); + float const border_y2 = y_pixels_to_gl(inter_position.y + inter_size.height); - float vertices[] = { - // positions // texture coords - video_x, video_y, 0.0f, 1.0f, 0.0f, // video texture top right (index 0) - video_x, -video_y, 0.0f, 1.0f, 1.0f, // video texture bottom right (index 1) - -video_x, -video_y, 0.0f, 0.0f, 1.0f, // video texture bottom left (index 2) - -video_x, video_y, 0.0f, 0.0f, 0.0f, // video texture top left (index 3) + float border_vertices[] = { + // positions // texture coords border_x1, border_y1, 0.0f, 0.0f, 0.0f, // border bottom left (index 4) border_x1, border_y2, 0.0f, 0.0f, 0.0f, // border top left (index 5) border_x2, border_y2, 0.0f, 0.0f, 0.0f, // border top right (index 6) border_x2, border_y1, 0.0f, 0.0f, 0.0f, // border bottom right (index 7) }; - /* Set the vertex shader's input data (GL_ARRAY_BUFFER) */ - glBufferData(GL_ARRAY_BUFFER, sizeof(vertices), vertices, GL_STATIC_DRAW); - check_gl_error ("glBufferData"); + glBufferSubData (GL_ARRAY_BUFFER, 8 * 5 * sizeof(float), sizeof(border_vertices), border_vertices); + check_gl_error ("glBufferSubData (border)"); } + if (_have_subtitle_to_render) { + float const subtitle_x1 = x_pixels_to_gl(inter_position.x + text->position.x); + float const subtitle_x2 = x_pixels_to_gl(inter_position.x + text->position.x + text->image->size().width); + float const subtitle_y1 = y_pixels_to_gl(inter_position.y + text->position.y + text->image->size().height); + float const subtitle_y2 = y_pixels_to_gl(inter_position.y + text->position.y); + + float vertices[] = { + // positions // texture coords + subtitle_x2, subtitle_y1, 0.0f, 1.0f, 0.0f, // subtitle texture top right (index 4) + subtitle_x2, subtitle_y2, 0.0f, 1.0f, 1.0f, // subtitle texture bottom right (index 5) + subtitle_x1, subtitle_y2, 0.0f, 0.0f, 1.0f, // subtitle texture bottom left (index 6) + subtitle_x1, subtitle_y1, 0.0f, 0.0f, 0.0f, // subtitle texture top left (index 7) + }; + + glBufferSubData (GL_ARRAY_BUFFER, 4 * 5 * sizeof(float), sizeof(vertices), vertices); + check_gl_error ("glBufferSubData (subtitle)"); + } + + /* opt: where should these go? */ + glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST); glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST); check_gl_error ("glTexParameteri"); @@ -649,7 +706,7 @@ try #endif _video_texture.reset(new Texture(_optimise_for_j2k ? 2 : 1)); - _video_texture->bind(); + _subtitle_texture.reset(new Texture(1)); while (true) { boost::mutex::scoped_lock lm (_playing_mutex); @@ -719,7 +776,7 @@ Texture::bind () } -bool +void Texture::set (shared_ptr image) { auto const create = !_size || image->size() != _size; @@ -728,17 +785,40 @@ Texture::set (shared_ptr image) glPixelStorei (GL_UNPACK_ALIGNMENT, _unpack_alignment); check_gl_error ("glPixelStorei"); - auto const format = image->pixel_format() == AV_PIX_FMT_RGB24 ? GL_UNSIGNED_BYTE : GL_UNSIGNED_SHORT; - auto const internal_format = image->pixel_format() == AV_PIX_FMT_RGB24 ? GL_RGBA8 : GL_RGBA12; + DCPOMATIC_ASSERT (!image->aligned()); + + GLint internal_format; + GLenum format; + GLenum type; + + switch (image->pixel_format()) { + case AV_PIX_FMT_BGRA: + internal_format = GL_RGBA8; + format = GL_BGRA; + type = GL_UNSIGNED_BYTE; + break; + case AV_PIX_FMT_RGBA: + internal_format = GL_RGBA8; + format = GL_RGBA; + type = GL_UNSIGNED_BYTE; + break; + case AV_PIX_FMT_XYZ12: + internal_format = GL_RGBA12; + format = GL_RGB; + type = GL_UNSIGNED_SHORT; + break; + default: + throw PixelFormatError ("Texture::set", image->pixel_format()); + } + + bind (); if (create) { - glTexImage2D (GL_TEXTURE_2D, 0, internal_format, _size->width, _size->height, 0, GL_RGB, format, image->data()[0]); + glTexImage2D (GL_TEXTURE_2D, 0, internal_format, _size->width, _size->height, 0, format, type, image->data()[0]); check_gl_error ("glTexImage2D"); } else { - glTexSubImage2D (GL_TEXTURE_2D, 0, 0, 0, _size->width, _size->height, GL_RGB, format, image->data()[0]); + glTexSubImage2D (GL_TEXTURE_2D, 0, 0, 0, _size->width, _size->height, format, type, image->data()[0]); check_gl_error ("glTexSubImage2D"); } - - return create; }