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--- products:sbc:vim4:applications:sdl2 [2022/06/30 02:31]
nick created
+++ products:sbc:vim4:applications:sdl2 [2022/08/07 22:47]
olivia [Demonstrate]
@@ Line 1: / Line 1: @@
-====== SDL2 ======
+====== VIM4 SDL2 ======
+<WRAP important >
+Only support Ubuntu 22.04 Gnome desktop.
+</WRAP>
+===== Introduction =====
+The Ubuntu 22.04 Gnome desktop is hardware accelerated with wayland GPU, so you can use SDL2 with GPU by default on desktop.
+===== Install SDL2 Packages =====
+```sh
+$ sudo apt update
+$ sudo apt upgrade
+$ sudo apt install libsdl2-2.0-0 libsdl2-dev
+```
+===== Demonstration =====
+==== Get SDL2 Source Code ====
+```sh
+$ cd /tmp
+$ git clone https://github.com/libsdl-org/SDL
+$ git checkout release-2.0.20
+$ cd SDL
+```
+==== Compile Test Examples ====
+```sh
+$ cd test
+$ ./configure
+$ make
+```
+==== Run Test Examples ====
+Run OpenGL ES2 Cube Demo.
+```txt
+khadas@Khadas:/tmp/SDL/test$ export SDL_VIDEODRIVER=wayland
+khadas@Khadas:/tmp/SDL/test$ ./testgles2
+Couldn't open plugin directory: No such file or directory
+No plugins found, falling back on no decorations
+INFO: Screen bpp: 24
+INFO:
+INFO: Vendor     : ARM
+INFO: Renderer   : Mali-G52
+INFO: Version    : OpenGL ES 3.2 v1.r25p1-wayland-drm-g52-r1p0-aarch64-7ff60ff52-1a.8e50ba890d865663aa14f1cd5b301d0f
+INFO: Extensions : GL_ARM_rgba8 GL_ARM_mali_shader_binary GL_OES_depth24 GL_OES_depth_texture GL_OES_depth_texture_cube_map GL_OES_packed_depth_stencil GL_OES_rgb8_rgba8 GL_EXT_read_format_bgra GL_OES_compressed_paletted_texture GL_OES_compressed_ETC1_RGB8_texture GL_OES_standard_derivatives GL_OES_EGL_image GL_OES_EGL_image_external GL_OES_EGL_image_external_essl3 GL_OES_EGL_sync GL_OES_texture_npot GL_OES_vertex_half_float GL_OES_required_internalformat GL_OES_vertex_array_object GL_OES_mapbuffer GL_EXT_texture_format_BGRA8888 GL_EXT_texture_rg GL_EXT_texture_type_2_10_10_10_REV GL_OES_fbo_render_mipmap GL_OES_element_index_uint GL_EXT_shadow_samplers GL_OES_texture_compression_astc GL_KHR_texture_compression_astc_ldr GL_KHR_texture_compression_astc_hdr GL_KHR_texture_compression_astc_sliced_3d GL_EXT_texture_compression_astc_decode_mode GL_EXT_texture_compression_astc_decode_mode_rgb9e5 GL_KHR_debug GL_EXT_occlusion_query_boolean GL_EXT_disjoint_timer_query GL_EXT_blend_minmax GL_EXT_discard_framebuffer GL_OES_get_program_binary GL_OES_texture_3D GL_EXT_texture_storage GL_EXT_multisampled_render_to_texture GL_EXT_multisampled_render_to_texture2 GL_OES_surfaceless_context GL_OES_texture_stencil8 GL_EXT_shader_pixel_local_storage GL_ARM_shader_framebuffer_fetch GL_ARM_shader_framebuffer_fetch_depth_stencil GL_ARM_mali_program_binary GL_EXT_sRGB GL_EXT_sRGB_write_control GL_EXT_texture_sRGB_decode GL_EXT_texture_sRGB_R8 GL_EXT_texture_sRGB_RG8 GL_KHR_blend_equation_advanced GL_KHR_blend_equation_advanced_coherent GL_OES_texture_storage_multisample_2d_array GL_OES_shader_image_atomic GL_EXT_robustness GL_EXT_draw_buffers_indexed GL_OES_draw_buffers_indexed GL_EXT_texture_border_clamp GL_OES_texture_border_clamp GL_EXT_texture_cube_map_array GL_OES_texture_cube_map_array GL_OES_sample_variables GL_OES_sample_shading GL_OES_shader_multisample_interpolation GL_EXT_shader_io_blocks GL_OES_shader_io_blocks GL_EXT_tessellation_shader GL_OES_tessellation_shader GL_EXT_primitive_bounding_box GL_OES_primitive_bounding_box GL_EXT_geometry_shader GL_OES_geometry_shader GL_ANDROID_extension_pack_es31a GL_EXT_gpu_shader5 GL_OES_gpu_shader5 GL_EXT_texture_buffer GL_OES_texture_buffer GL_EXT_copy_image GL_OES_copy_image GL_EXT_shader_non_constant_global_initializers GL_EXT_color_buffer_half_float GL_EXT_color_buffer_float GL_EXT_YUV_target GL_OVR_multiview GL_OVR_multiview2 GL_OVR_multiview_multisampled_render_to_texture GL_KHR_robustness GL_KHR_robust_buffer_access_behavior GL_EXT_draw_elements_base_vertex GL_OES_draw_elements_base_vertex GL_EXT_buffer_storage GL_EXT_texture_filter_anisotropic GL_ARM_texture_unnormalized_coordinates
+INFO:
+INFO: SDL_GL_RED_SIZE: requested 5, got 8
+INFO: SDL_GL_GREEN_SIZE: requested 5, got 8
+INFO: SDL_GL_BLUE_SIZE: requested 5, got 8
+INFO: SDL_GL_DEPTH_SIZE: requested 16, got 24
+```
+If everything is ok, you will see the cube on screen.

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