[Mesa-dev] [Bug 41221] Mesa 7.11 implementation error: Incomplete OpenGL ES 2.0 support.

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=41221

--- Comment #4 from Ian Romanick <idr at freedesktop.org> 2011-11-23 13:25:47 PST ---
The examples from the Orange book use desktop OpenGL.  OpenGL ES 2.0 has the
added restriction (compared to desktop OpenGL 2.x) that there *must* be both a
vertex shader and a fragment shader.  Since ES2.0 lacks any fixed-function
vertex (or fragment) processing, there is no other way.

In the Mesa demos repository, there is a program called es2_info.  Can you add
the full output from that program?  It should look something like below.  The
exact output will be different because I'm using a different GPU, etc.

EGL_VERSION = 1.4 (DRI2)
EGL_VENDOR = Mesa Project
EGL_EXTENSIONS = EGL_MESA_drm_image EGL_KHR_image_base EGL_KHR_image_pixmap
EGL_KHR_image EGL_KHR_gl_renderbuffer_image EGL_KHR_surfaceless_gles1
EGL_KHR_surfaceless_gles2 EGL_KHR_surfaceless_opengl EGL_NOK_swap_region
EGL_NOK_texture_from_pixmap 
EGL_CLIENT_APIS = OpenGL OpenGL_ES OpenGL_ES2 
GL_VERSION: OpenGL ES 2.0 Mesa 7.11.1
GL_RENDERER: Mesa DRI Intel(R) Sandybridge Mobile 
GL_EXTENSIONS:
    GL_EXT_blend_minmax, GL_EXT_multi_draw_arrays, 
    GL_EXT_texture_filter_anisotropic, GL_OES_depth24, 
    GL_OES_element_index_uint, GL_OES_fbo_render_mipmap, GL_OES_mapbuffer, 
    GL_OES_rgb8_rgba8, GL_OES_stencil8, GL_OES_texture_3D, 
    GL_OES_texture_npot, GL_OES_EGL_image, GL_OES_depth_texture, 
    GL_OES_packed_depth_stencil, GL_EXT_texture_type_2_10_10_10_REV, 
    GL_EXT_texture_format_BGRA8888

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