diff options
author | Enrico Turri <enricoturri@seznam.cz> | 2019-10-29 12:27:51 +0300 |
---|---|---|
committer | Enrico Turri <enricoturri@seznam.cz> | 2019-10-29 12:27:51 +0300 |
commit | 3ff3eed2b1e0751e823559542975e63d51f62010 (patch) | |
tree | 99688fedcae65515912f7efe91219ae26bab74f8 /src | |
parent | f36dd833d2fecebe86d351fe0f2933e1c920673c (diff) |
ENABLE_THUMBNAIL_GENERATOR -> Use off-screen framebuffer to render the thumbnail on graphic cards supporting it
Diffstat (limited to 'src')
-rw-r--r-- | src/slic3r/GUI/GLCanvas3D.cpp | 219 | ||||
-rw-r--r-- | src/slic3r/GUI/GLCanvas3D.hpp | 6 | ||||
-rw-r--r-- | src/slic3r/GUI/GLCanvas3DManager.cpp | 6 | ||||
-rw-r--r-- | src/slic3r/GUI/GLCanvas3DManager.hpp | 2 |
4 files changed, 151 insertions, 82 deletions
diff --git a/src/slic3r/GUI/GLCanvas3D.cpp b/src/slic3r/GUI/GLCanvas3D.cpp index 139ee5fa4..b40a83682 100644 --- a/src/slic3r/GUI/GLCanvas3D.cpp +++ b/src/slic3r/GUI/GLCanvas3D.cpp @@ -1649,88 +1649,10 @@ void GLCanvas3D::render() #if ENABLE_THUMBNAIL_GENERATOR void GLCanvas3D::render_thumbnail(ThumbnailData& thumbnail_data, unsigned int w, unsigned int h, bool printable_only, bool parts_only) { - auto is_visible = [](const GLVolume& v) -> bool { - bool ret = v.printable; - ret &= (!v.shader_outside_printer_detection_enabled || !v.is_outside); - return ret; - }; - - static const float orange[] = { 0.99f, 0.49f, 0.26f }; - static const float gray[] = { 0.64f, 0.64f, 0.64f }; - - const Size& cnv_size = get_canvas_size(); - unsigned int cnv_w = (unsigned int)cnv_size.get_width(); - unsigned int cnv_h = (unsigned int)cnv_size.get_height(); - if ((w > cnv_w) || (h > cnv_h)) - { - float ratio = std::min((float)cnv_w / (float)w, (float)cnv_h / (float)h); - w = (unsigned int)(ratio * (float)w); - h = (unsigned int)(ratio * (float)h); - } - - thumbnail_data.set(w, h); - - GLVolumePtrs visible_volumes; - - for (GLVolume* vol : m_volumes.volumes) - { - if (!vol->is_modifier && !vol->is_wipe_tower && (!parts_only || (vol->composite_id.volume_id >= 0))) - { - if (!printable_only || is_visible(*vol)) - visible_volumes.push_back(vol); - } - } - - if (visible_volumes.empty()) - return; - - BoundingBoxf3 box; - for (const GLVolume* vol : visible_volumes) - { - box.merge(vol->transformed_bounding_box()); - } - - Camera camera; - camera.zoom_to_box(box, thumbnail_data.width, thumbnail_data.height); - camera.apply_viewport(0, 0, thumbnail_data.width, thumbnail_data.height); - camera.apply_view_matrix(); - camera.apply_projection(box); - - glsafe(::glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT)); - glsafe(::glEnable(GL_LIGHTING)); - glsafe(::glEnable(GL_DEPTH_TEST)); - - for (const GLVolume* vol : visible_volumes) - { - glsafe(::glColor3fv((vol->printable && !vol->is_outside) ? orange : gray)); - vol->render(); - } - - glsafe(::glDisable(GL_DEPTH_TEST)); - glsafe(::glDisable(GL_LIGHTING)); - glsafe(::glReadPixels(0, 0, thumbnail_data.width, thumbnail_data.height, GL_RGBA, GL_UNSIGNED_BYTE, (void*)thumbnail_data.pixels.data())); - -#if 0 - // debug export of generated image - wxImage image(thumbnail_data.width, thumbnail_data.height); - image.InitAlpha(); - - for (unsigned int r = 0; r < thumbnail_data.height; ++r) - { - unsigned int rr = (thumbnail_data.height - 1 - r) * thumbnail_data.width; - for (unsigned int c = 0; c < thumbnail_data.width; ++c) - { - unsigned char* px = thumbnail_data.pixels.data() + 4 * (rr + c); - image.SetRGB((int)c, (int)r, px[0], px[1], px[2]); - image.SetAlpha((int)c, (int)r, px[3]); - } - } - - image.SaveFile("C:/test.png", wxBITMAP_TYPE_PNG); -#endif - - // restore the framebuffer size to avoid flickering on the 3D scene - m_camera.apply_viewport(0, 0, cnv_size.get_width(), cnv_size.get_height()); + if (GLCanvas3DManager::are_framebuffers_supported()) + _render_thumbnail_framebuffer(thumbnail_data, w, h, printable_only, parts_only); + else + _render_thumbnail_legacy(thumbnail_data, w, h, printable_only, parts_only); } #endif // ENABLE_THUMBNAIL_GENERATOR @@ -3644,6 +3566,139 @@ void GLCanvas3D::_render_undo_redo_stack(const bool is_undo, float pos_x) imgui->end(); } +#if ENABLE_THUMBNAIL_GENERATOR +static void render_volumes_in_thumbnail(const GLVolumePtrs& volumes, ThumbnailData& thumbnail_data, bool printable_only, bool parts_only) +{ + auto is_visible = [](const GLVolume& v) -> bool + { + bool ret = v.printable; + ret &= (!v.shader_outside_printer_detection_enabled || !v.is_outside); + return ret; + }; + + static const float orange[] = { 0.99f, 0.49f, 0.26f }; + static const float gray[] = { 0.64f, 0.64f, 0.64f }; + + GLVolumePtrs visible_volumes; + + for (GLVolume* vol : volumes) + { + if (!vol->is_modifier && !vol->is_wipe_tower && (!parts_only || (vol->composite_id.volume_id >= 0))) + { + if (!printable_only || is_visible(*vol)) + visible_volumes.push_back(vol); + } + } + + if (visible_volumes.empty()) + return; + + BoundingBoxf3 box; + for (const GLVolume* vol : visible_volumes) + { + box.merge(vol->transformed_bounding_box()); + } + + Camera camera; + camera.zoom_to_box(box, thumbnail_data.width, thumbnail_data.height); + camera.apply_viewport(0, 0, thumbnail_data.width, thumbnail_data.height); + camera.apply_view_matrix(); + camera.apply_projection(box); + + glsafe(::glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT)); + glsafe(::glEnable(GL_LIGHTING)); + glsafe(::glEnable(GL_DEPTH_TEST)); + + for (const GLVolume* vol : visible_volumes) + { + glsafe(::glColor3fv((vol->printable && !vol->is_outside) ? orange : gray)); + vol->render(); + } + + glsafe(::glDisable(GL_DEPTH_TEST)); + glsafe(::glDisable(GL_LIGHTING)); + glsafe(::glReadPixels(0, 0, thumbnail_data.width, thumbnail_data.height, GL_RGBA, GL_UNSIGNED_BYTE, (void*)thumbnail_data.pixels.data())); + +#if 0 + // debug export of generated image + wxImage image(thumbnail_data.width, thumbnail_data.height); + image.InitAlpha(); + + for (unsigned int r = 0; r < thumbnail_data.height; ++r) + { + unsigned int rr = (thumbnail_data.height - 1 - r) * thumbnail_data.width; + for (unsigned int c = 0; c < thumbnail_data.width; ++c) + { + unsigned char* px = thumbnail_data.pixels.data() + 4 * (rr + c); + image.SetRGB((int)c, (int)r, px[0], px[1], px[2]); + image.SetAlpha((int)c, (int)r, px[3]); + } + } + + image.SaveFile("C:/prusa/test/test.png", wxBITMAP_TYPE_PNG); +#endif +} + +void GLCanvas3D::_render_thumbnail_framebuffer(ThumbnailData& thumbnail_data, unsigned int w, unsigned int h, bool printable_only, bool parts_only) +{ + thumbnail_data.set(w, h); + if (!thumbnail_data.is_valid()) + return; + + GLuint fbo; + glsafe(::glGenFramebuffers(1, &fbo)); + glsafe(::glBindFramebuffer(GL_FRAMEBUFFER, fbo)); + + GLuint tex; + glsafe(::glGenTextures(1, &tex)); + glsafe(::glBindTexture(GL_TEXTURE_2D, tex)); + glsafe(::glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA8, w, h, 0, GL_RGBA, GL_UNSIGNED_BYTE, nullptr)); + glsafe(::glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR)); + glsafe(::glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR)); + glsafe(::glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, tex, 0)); + + GLuint depth; + glsafe(::glGenRenderbuffers(1, &depth)); + glsafe(::glBindRenderbuffer(GL_RENDERBUFFER, depth)); + glsafe(::glRenderbufferStorage(GL_RENDERBUFFER, GL_DEPTH_COMPONENT, w, h)); + glsafe(::glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, GL_RENDERBUFFER, depth)); + + GLenum drawBufs[] = { GL_COLOR_ATTACHMENT0 }; + glsafe(::glDrawBuffers(1, drawBufs)); + + if (::glCheckFramebufferStatus(GL_FRAMEBUFFER) == GL_FRAMEBUFFER_COMPLETE) + render_volumes_in_thumbnail(m_volumes.volumes, thumbnail_data, printable_only, parts_only); + + glsafe(::glBindFramebuffer(GL_FRAMEBUFFER, 0)); + glsafe(::glDeleteRenderbuffers(1, &depth)); + glsafe(::glDeleteTextures(1, &tex)); + glsafe(::glDeleteFramebuffers(1, &fbo)); +} + +void GLCanvas3D::_render_thumbnail_legacy(ThumbnailData& thumbnail_data, unsigned int w, unsigned int h, bool printable_only, bool parts_only) +{ + // check that thumbnail size does not exceed the default framebuffer size + const Size& cnv_size = get_canvas_size(); + unsigned int cnv_w = (unsigned int)cnv_size.get_width(); + unsigned int cnv_h = (unsigned int)cnv_size.get_height(); + if ((w > cnv_w) || (h > cnv_h)) + { + float ratio = std::min((float)cnv_w / (float)w, (float)cnv_h / (float)h); + w = (unsigned int)(ratio * (float)w); + h = (unsigned int)(ratio * (float)h); + } + + thumbnail_data.set(w, h); + if (!thumbnail_data.is_valid()) + return; + + render_volumes_in_thumbnail(m_volumes.volumes, thumbnail_data, printable_only, parts_only); + + // restore the default framebuffer size to avoid flickering on the 3D scene + m_camera.apply_viewport(0, 0, cnv_size.get_width(), cnv_size.get_height()); +} +#endif // ENABLE_THUMBNAIL_GENERATOR + bool GLCanvas3D::_init_toolbars() { if (!_init_main_toolbar()) diff --git a/src/slic3r/GUI/GLCanvas3D.hpp b/src/slic3r/GUI/GLCanvas3D.hpp index 5b06b6311..fce4661a4 100644 --- a/src/slic3r/GUI/GLCanvas3D.hpp +++ b/src/slic3r/GUI/GLCanvas3D.hpp @@ -674,6 +674,12 @@ private: void _render_sla_slices() const; void _render_selection_sidebar_hints() const; void _render_undo_redo_stack(const bool is_undo, float pos_x); +#if ENABLE_THUMBNAIL_GENERATOR + // render thumbnail using an off-screen framebuffer + void _render_thumbnail_framebuffer(ThumbnailData& thumbnail_data, unsigned int w, unsigned int h, bool printable_only, bool parts_only); + // render thumbnail using the default framebuffer + void _render_thumbnail_legacy(ThumbnailData& thumbnail_data, unsigned int w, unsigned int h, bool printable_only, bool parts_only); +#endif // ENABLE_THUMBNAIL_GENERATOR void _update_volumes_hover_state() const; diff --git a/src/slic3r/GUI/GLCanvas3DManager.cpp b/src/slic3r/GUI/GLCanvas3DManager.cpp index 9690e8a8d..03daa0b00 100644 --- a/src/slic3r/GUI/GLCanvas3DManager.cpp +++ b/src/slic3r/GUI/GLCanvas3DManager.cpp @@ -189,6 +189,7 @@ std::string GLCanvas3DManager::GLInfo::to_string(bool format_as_html, bool exten GLCanvas3DManager::EMultisampleState GLCanvas3DManager::s_multisample = GLCanvas3DManager::MS_Unknown; bool GLCanvas3DManager::s_compressed_textures_supported = false; +bool GLCanvas3DManager::s_framebuffers_supported = false; GLCanvas3DManager::GLInfo GLCanvas3DManager::s_gl_info; GLCanvas3DManager::GLCanvas3DManager() @@ -269,6 +270,11 @@ void GLCanvas3DManager::init_gl() else s_compressed_textures_supported = false; + if (s_gl_info.is_version_greater_or_equal_to(3, 0) && GLEW_ARB_framebuffer_object) + s_framebuffers_supported = true; + else + s_framebuffers_supported = false; + if (! s_gl_info.is_version_greater_or_equal_to(2, 0)) { // Complain about the OpenGL version. wxString message = wxString::Format( diff --git a/src/slic3r/GUI/GLCanvas3DManager.hpp b/src/slic3r/GUI/GLCanvas3DManager.hpp index 760266a27..a2e35f811 100644 --- a/src/slic3r/GUI/GLCanvas3DManager.hpp +++ b/src/slic3r/GUI/GLCanvas3DManager.hpp @@ -77,6 +77,7 @@ private: bool m_gl_initialized; static EMultisampleState s_multisample; static bool s_compressed_textures_supported; + static bool s_framebuffers_supported; public: GLCanvas3DManager(); @@ -97,6 +98,7 @@ public: static bool can_multisample() { return s_multisample == MS_Enabled; } static bool are_compressed_textures_supported() { return s_compressed_textures_supported; } + static bool are_framebuffers_supported() { return s_framebuffers_supported; } static wxGLCanvas* create_wxglcanvas(wxWindow *parent); |