Enabling MSAA using QSurfaceFormat not showing up GUI

R_ram · wrote on 27 Sept 2019, 11:24

Hello forum members,

I tried to enable the MSAA through QSurfaceFormat in the application.
After invoking the application it's running successfully but failed to load the user interface on the target platform.
But in the desktop, it's working and showing the user interface.

#include <QGuiApplication>
#include <QQmlApplicationEngine>
#include <QQmlContext>
#include "backend.h"
#include <QFontDatabase>
#include <QSurfaceFormat>

int main(int argc, char *argv[])
{
    // Applying MSAA
    QSurfaceFormat format;
    format.setSamples(4);
    QSurfaceFormat::setDefaultFormat(format);

    QCoreApplication::setAttribute(Qt::AA_EnableHighDpiScaling);
    QGuiApplication app(argc, argv);

    QQmlApplicationEngine engine;
    engine.load(QUrl(QStringLiteral("qrc:/main.qml")));
    if (engine.rootObjects().isEmpty())
        return -1;

    return app.exec();
}

Platform specs
Board: imx_6
kernal: 4.14
Rendering mode: DRM

Libraries involved:
ldd /usr/bin/qt5-opengles2-test
        linux-vdso.so.1 (0xbeddb000)
        libQt5Gui.so.5 => /usr/lib/libQt5Gui.so.5 (0xb6ac4000)
        libQt5Sensors.so.5 => /usr/lib/libQt5Sensors.so.5 (0xb6a81000)
        libQt5Core.so.5 => /usr/lib/libQt5Core.so.5 (0xb65a4000)
        libGLESv2.so.2 => /usr/lib/libGLESv2.so.2 (0xb658a000)
        libstdc++.so.6 => /usr/lib/libstdc++.so.6 (0xb6443000)
        libgcc_s.so.1 => /lib/libgcc_s.so.1 (0xb6416000)
        libc.so.6 => /lib/libc.so.6 (0xb62d6000)
        libpthread.so.0 => /lib/libpthread.so.0 (0xb62ad000)
        libpng16.so.16 => /usr/lib/libpng16.so.16 (0xb6274000)
        libz.so.1 => /lib/libz.so.1 (0xb6250000)
        libm.so.6 => /lib/libm.so.6 (0xb61cb000)
        libicui18n.so.60 => /usr/lib/libicui18n.so.60 (0xb5fb1000)
        libicuuc.so.60 => /usr/lib/libicuuc.so.60 (0xb5e45000)
        libdl.so.2 => /lib/libdl.so.2 (0xb5e32000)
        libglib-2.0.so.0 => /usr/lib/libglib-2.0.so.0 (0xb5d2f000)
        /lib/ld-linux-armhf.so.3 (0xb6f32000)
        libdrm.so.2 => /usr/lib/libdrm.so.2 (0xb5d11000)
        libglapi.so.0 => /usr/lib/libglapi.so.0 (0xb5cd7000)
        libicudata.so.60 => /usr/lib/libicudata.so.60 (0xb431e000)
        libpcre.so.1 => /usr/lib/libpcre.so.1 (0xb42ce000)

ls /usr/lib | grep viv
libdrm_etnaviv.so.1
libdrm_etnaviv.so.1.0.0

EGL info output

eglinfo-fb 
EGL information:
    API version:    1.4
    vendor string:  Mesa Project
    version string: 1.4 (DRI2)
    client APIs:    OpenGL OpenGL_ES 
    extensions:
      EGL_ANDROID_native_fence_sync
      EGL_EXT_buffer_age
      EGL_EXT_image_dma_buf_import
      EGL_EXT_image_dma_buf_import_modifiers
      EGL_KHR_cl_event2
      EGL_KHR_config_attribs
      EGL_KHR_create_context
      EGL_KHR_create_context_no_error
      EGL_KHR_fence_sync
      EGL_KHR_get_all_proc_addresses
      EGL_KHR_gl_renderbuffer_image
      EGL_KHR_gl_texture_2D_image
      EGL_KHR_gl_texture_3D_image
      EGL_KHR_gl_texture_cubemap_image
      EGL_KHR_image
      EGL_KHR_image_base
      EGL_KHR_image_pixmap
      EGL_KHR_no_config_context
      EGL_KHR_reusable_sync
      EGL_KHR_surfaceless_context
      EGL_KHR_wait_sync
      EGL_MESA_configless_context
      EGL_MESA_drm_image
      EGL_MESA_image_dma_buf_export
   number of configurations: 24

win = window      (c) = conformant             slow      = slow config               gl      = Desktop OpenGL                                 
pb  = pbuffer     (n) = non-conformant         nonconfmt = non-conformant config     es1,es2 = OpenGL ES 1.x/2.x                              
pix = pixmap                                                                         vg      = OpenVG                                         

      #      ID  LEVEL  COLORBUFFER..........  DEPTH  STENCIL  MULTISAMPLE....  VISUAL.......  SURFACES..  RENDERABLES...................... .
                        type size  r  g  b  a  size   size     samples buffers  type   id                  apis                       native  
      0       1      0  rgb    32  8  8  8  8     0      0           0       0  0x3038 0x34325241  win         gl(c),es1(c),es2(c)        yes 
      1       2      0  rgb    32  8  8  8  8    24      0           0       0  0x3038 0x34325241  win         gl(c),es1(c),es2(c)        yes 
      2       3      0  rgb    32  8  8  8  8    24      8           0       0  0x3038 0x34325241  win         gl(c),es1(c),es2(c)        yes 
      3       4      0  rgb    32  8  8  8  8     0      0           2       1  0x3038 0x34325241  win         gl(c),es1(c),es2(c)        yes 
      4       5      0  rgb    32  8  8  8  8     0      0           4       1  0x3038 0x34325241  win         gl(c),es1(c),es2(c)        yes 
      5       6      0  rgb    32  8  8  8  8    24      0           2       1  0x3038 0x34325241  win         gl(c),es1(c),es2(c)        yes 
      6       7      0  rgb    32  8  8  8  8    24      0           4       1  0x3038 0x34325241  win         gl(c),es1(c),es2(c)        yes 
      7       8      0  rgb    32  8  8  8  8    24      8           2       1  0x3038 0x34325241  win         gl(c),es1(c),es2(c)        yes 
      8       9      0  rgb    32  8  8  8  8    24      8           4       1  0x3038 0x34325241  win         gl(c),es1(c),es2(c)        yes 
      9      10      0  rgb    24  8  8  8  0     0      0           0       0  0x3038 0x34325258  win         gl(c),es1(c),es2(c)        yes 
     10      11      0  rgb    24  8  8  8  0    24      0           0       0  0x3038 0x34325258  win         gl(c),es1(c),es2(c)        yes 
     11      12      0  rgb    24  8  8  8  0    24      8           0       0  0x3038 0x34325258  win         gl(c),es1(c),es2(c)        yes 
     12      13      0  rgb    24  8  8  8  0     0      0           2       1  0x3038 0x34325258  win         gl(c),es1(c),es2(c)        yes 
     13      14      0  rgb    24  8  8  8  0     0      0           4       1  0x3038 0x34325258  win         gl(c),es1(c),es2(c)        yes 
     14      15      0  rgb    24  8  8  8  0    24      0           2       1  0x3038 0x34325258  win         gl(c),es1(c),es2(c)        yes 
     15      16      0  rgb    24  8  8  8  0    24      0           4       1  0x3038 0x34325258  win         gl(c),es1(c),es2(c)        yes 
     16      17      0  rgb    24  8  8  8  0    24      8           2       1  0x3038 0x34325258  win         gl(c),es1(c),es2(c)        yes 
     17      18      0  rgb    24  8  8  8  0    24      8           4       1  0x3038 0x34325258  win         gl(c),es1(c),es2(c)        yes 
     18      19      0  rgb    16  5  6  5  0     0      0           0       0  0x3038 0x36314752  win         gl(c),es1(c),es2(c)        yes 
     19      20      0  rgb    16  5  6  5  0    16      0           0       0  0x3038 0x36314752  win         gl(c),es1(c),es2(c)        yes 
     20      21      0  rgb    16  5  6  5  0     0      0           2       1  0x3038 0x36314752  win         gl(c),es1(c),es2(c)        yes 
     21      22      0  rgb    16  5  6  5  0     0      0           4       1  0x3038 0x36314752  win         gl(c),es1(c),es2(c)        yes 
     22      23      0  rgb    16  5  6  5  0    16      0           2       1  0x3038 0x36314752  win         gl(c),es1(c),es2(c)        yes 
     23      24      0  rgb    16  5  6  5  0    16      0           4       1  0x3038 0x36314752  win         gl(c),es1(c),es2(c)        yes 

No valid surface: A NativeWindowType argument does not refer to a valid native window.
OpenGL ES 1 information:
    version string:  OpenGL ES-CM 1.1 Mesa 17.3.8
    renderer string: Vivante GC880 rev 5106
    extensions:
      GL_EXT_blend_minmax
      GL_EXT_multi_draw_arrays
      GL_EXT_texture_filter_anisotropic
      GL_EXT_texture_lod_bias
      GL_OES_byte_coordinates
      GL_OES_fixed_point
      GL_OES_stencil_wrap
      GL_OES_compressed_paletted_texture
      GL_OES_query_matrix
      GL_OES_read_format
      GL_OES_single_precision
      GL_EXT_texture_compression_dxt1
      GL_OES_draw_texture
      GL_OES_point_size_array
      GL_OES_point_sprite
      GL_EXT_texture_format_BGRA8888
      GL_OES_compressed_ETC1_RGB8_texture
      GL_OES_depth24
      GL_OES_element_index_uint
      GL_OES_fbo_render_mipmap
      GL_OES_framebuffer_object
      GL_OES_mapbuffer
      GL_OES_rgb8_rgba8
      GL_OES_stencil8
      GL_OES_texture_env_crossbar
      GL_OES_texture_mirrored_repeat
      GL_OES_texture_npot
      GL_OES_EGL_image
      GL_OES_packed_depth_stencil
      GL_OES_texture_cube_map
      GL_APPLE_texture_max_level
      GL_EXT_discard_framebuffer
      GL_EXT_read_format_bgra
      GL_OES_blend_equation_separate
      GL_OES_blend_func_separate
      GL_OES_blend_subtract
      GL_OES_EGL_image_external
      GL_OES_EGL_sync
      GL_OES_vertex_array_object
      GL_ANGLE_texture_compression_dxt3
      GL_ANGLE_texture_compression_dxt5
      GL_EXT_map_buffer_range
      GL_KHR_debug
      GL_OES_required_internalformat
      GL_OES_surfaceless_context
      GL_EXT_compressed_ETC1_RGB8_sub_texture
      GL_KHR_no_error
  main stats:
    max texture size:                 8192
    max cubemap texture size:         8192
    max texture image units:          -1228501676
    max renderbuffer size:            8192
    max combined texture image units: -1226986984
    num compressed texture formats:   15
    aliased line width range:         1 - 8192
    aliased point size range:         1 - 8192
    implementation color read format: 0x0
    implementation color read type:   0x0
    max viewport dimensions:          8192 x 8192
    subpixel bits:                    4
    supported compressed texture formats:
      COMPRESSED_RGB_S3TC_DXT1_EXT
      COMPRESSED_RGBA_S3TC_DXT3_ANGLE
      COMPRESSED_RGBA_S3TC_DXT5_ANGLE
      COMPRESSED_RGBA_S3TC_DXT1_EXT
      ETC1_RGB8
      PALETTE4_RGB8_OES
      PALETTE4_RGBA8_OES
      PALETTE4_R5_G6_B5_OES
      PALETTE4_RGBA4_OES
      PALETTE4_RGB5_A1_OES
      PALETTE8_RGB8_OES
      PALETTE8_RGBA8_OES
      PALETTE8_R5_G6_B5_OES
      PALETTE8_RGBA4_OES
      PALETTE8_RGB5_A1_OES

No valid surface: A NativeWindowType argument does not refer to a valid native window.
OpenGL ES 2 information:
    version string:  OpenGL ES 2.0 Mesa 17.3.8
    renderer string: Vivante GC880 rev 5106
    extensions:
      GL_EXT_blend_minmax
      GL_EXT_multi_draw_arrays
      GL_EXT_texture_filter_anisotropic
      GL_EXT_texture_compression_dxt1
      GL_EXT_texture_format_BGRA8888
      GL_OES_compressed_ETC1_RGB8_texture
      GL_OES_depth24
      GL_OES_element_index_uint
      GL_OES_fbo_render_mipmap
      GL_OES_mapbuffer
      GL_OES_rgb8_rgba8
      GL_OES_standard_derivatives
      GL_OES_stencil8
      GL_OES_texture_3D
      GL_OES_texture_npot
      GL_OES_vertex_half_float
      GL_OES_EGL_image
      GL_OES_depth_texture
      GL_OES_packed_depth_stencil
      GL_OES_get_program_binary
      GL_APPLE_texture_max_level
      GL_EXT_discard_framebuffer
      GL_EXT_read_format_bgra
      GL_EXT_frag_depth
      GL_NV_fbo_color_attachments
      GL_OES_EGL_image_external
      GL_OES_EGL_sync
      GL_OES_vertex_array_object
      GL_ANGLE_texture_compression_dxt3
      GL_ANGLE_texture_compression_dxt5
      GL_EXT_unpack_subimage
      GL_NV_draw_buffers
      GL_NV_read_buffer
      GL_NV_read_depth
      GL_NV_read_depth_stencil
      GL_NV_read_stencil
      GL_EXT_draw_buffers
      GL_EXT_map_buffer_range
      GL_KHR_debug
      GL_OES_required_internalformat
      GL_OES_surfaceless_context
      GL_EXT_separate_shader_objects
      GL_EXT_compressed_ETC1_RGB8_sub_texture
      GL_EXT_draw_elements_base_vertex
      GL_EXT_texture_border_clamp
      GL_KHR_context_flush_control
      GL_OES_draw_elements_base_vertex
      GL_OES_texture_border_clamp
      GL_KHR_no_error
  main stats:
    max texture size:                 8192
    max cubemap texture size:         8192
    max texture image units:          8
    max renderbuffer size:            8192
    max combined texture image units: 12
    num compressed texture formats:   5
    aliased line width range:         1 - 8192
    aliased point size range:         1 - 8192
    implementation color read format: 0x0
    implementation color read type:   0x0
    max viewport dimensions:          8192 x 8192
    subpixel bits:                    4
    supported compressed texture formats:
      COMPRESSED_RGB_S3TC_DXT1_EXT
      COMPRESSED_RGBA_S3TC_DXT3_ANGLE
      COMPRESSED_RGBA_S3TC_DXT5_ANGLE
      COMPRESSED_RGBA_S3TC_DXT1_EXT
      ETC1_RGB8
  shader specific stats:
    max vertex attribs:             16
    max vertex texture image units: 4
    num program binary formats:     0
    num shader binary formats:      0
    max varying vectors:            8
    max vertex uniform vectors:     256
    max fragment uniform vectors:   256
    shader compiler:                yes