BXS 4-64 MC1 and PVRTC

Hi,
Before ,I use SGX544, PVRTC format was supported
Now I update the hardware to BXS 4-64 MC1, can someone tell me the PVRTC if still supported?

I can not find the PVRTC in manual doc, would be very grateful if I could get some responses!

Hi axel,

Thanks for your message.

In IMG BXS-4-64 MC1 - Imagination I can see PVRTC is supported.

Please let me know if you experience any issues when using PVRTC.

Best regards,
Alejandro

Hi AlejandroC,
Thanks for your reply!

I got GLError 500, format is PVRTC2_4BPP

below is my code
GLCheck(glCompressedTexImage2D(
static_cast(GL_TEXTURE_2D),
static_cast(0),
static_cast(0x9138),
static_cast(texWidth),
static_cast(texHeight),
static_cast(0),
static_cast(size),
pxlData));

Is the enum 0x9138 the correct param?

Hi axel,

Yes, it is the correct enum. You can verify other enums in this file of our public SDK: Native_SDK/framework/PVRCore/textureio/FileDefinesKTX.h at 6e7a32d39f436800690d20f0839c27ee280f29eb · powervr-graphics/Native_SDK · GitHub

I would advice to use glGetString(GL_EXTENSIONS); to show all extensions supported, you can then verify whether extension GL_IMG_texture_compression_pvrtc for PVRTC v1 or extension GL_IMG_texture_compression_pvrtc2 for PVRTC v2 are reported as supported.

Please let me know if you still have issues verifying PVRTC v1 / PVRTC v2 support on your GPU core.

Best regards,
Alejandro

Hi AlejandroC,

Looks like there is no PVR support, extension as below

GL_ANDROID_extension_pack_es31a
GL_APPLE_texture_format_BGRA8888
GL_EXT_blend_minmax
GL_EXT_buffer_storage
GL_EXT_clear_texture
GL_EXT_clip_control
GL_EXT_color_buffer_float
GL_EXT_color_buffer_half_float
GL_EXT_compressed_ETC1_RGB8_sub_texture
GL_EXT_conservative_depth
GL_EXT_copy_image
GL_EXT_discard_fraViewSelect
GL_EXT_draw_buffers
GL_EXT_draw_buffers_indexed
GL_EXT_draw_elements_base_vertex
GL_EXT_EGL_image_array
GL_EXT_float_blend
GL_EXT_geometry_point_size
GL_EXT_geometry_shader
GL_EXT_gpu_shader5
GL_EXT_multi_draw_arrays
GL_EXT_multisampled_render_to_texture
GL_EXT_multisampled_render_to_texture2
GL_EXT_occlusion_query_boolean
GL_EXT_polygon_offset_clamp
GL_EXT_primitive_bounding_box
GL_EXT_read_format_bgra
GL_EXT_robustness
GL_EXT_separate_shader_objects
GL_EXT_shader_framebuffer_fetch
GL_EXT_shader_group_vote
GL_EXT_shader_implicit_conversions
GL_EXT_shader_io_blocks
GL_EXT_shader_non_constant_global_initializers
GL_EXT_shader_pixel_local_storage
GL_EXT_shader_pixel_local_storage2
GL_EXT_shader_texture_lod
GL_EXT_shadow_samplers
GL_EXT_sparse_texture
GL_EXT_sRGB
GL_EXT_sRGB_write_control
GL_EXT_tessellation_point_size
GL_EXT_tessellation_shader
GL_EXT_texture_border_clamp
GL_EXT_texture_buffer
GL_EXT_texture_cube_map_array
GL_EXT_texture_format_BGRA8888
GL_EXT_texture_format_sRGB_override
GL_EXT_texture_rg
GL_EXT_texture_shadow_lod
GL_EXT_texture_sRGB_decode
GL_EXT_texture_sRGB_R8
GL_EXT_texture_sRGB_RG8
GL_EXT_texture_type_2_10_10_10_REV
GL_EXT_unpack_subimage
GL_EXT_YUV_target
GL_EXT_texture_storage_compression
GL_IMG_framebuffer_downsample
GL_IMG_multisampled_render_to_texture
GL_IMG_program_binary
GL_IMG_read_format
GL_IMG_shader_binary
GL_IMG_texture_format_BGRA8888
GL_IMG_texture_npot
GL_KHR_blend_equation_advanced
GL_KHR_blend_equation_advanced_coherent

GL_KHR_debug
GL_KHR_robustness
GL_KHR_texture_compression_astc_ldr
GL_OES_compressed_ETC1_RGB8_texture
GL_OES_depth24
GL_OES_depth_texture
GL_OES_depth_texture_cube_map
GL_OES_draw_buffers_indexed
GL_OES_draw_elements_base_vertex
GL_OES_EGL_image
GL_OES_EGL_image_external
GL_OES_EGL_image_external_essl3
GL_OES_EGL_sync
GL_OES_element_index_uint
GL_OES_fragment_precision_high
GL_OES_geometry_point_size
GL_OES_geometry_shader
GL_OES_get_program_binary
GL_OES_gpu_shader5
GL_OES_mapbuffer
GL_OES_packed_depth_stencil
GL_OES_required_internalformat
GL_OES_rgb8_rgba8
GL_OES_sample_shading
GL_OES_sample_variables
GL_OES_shader_image_atomic
GL_OES_shader_io_blocks
GL_OES_shader_multisample_interpolation
GL_OES_standard_derivatives
GL_OES_surfaceless_context
GL_OES_tessellation_point_size
GL_OES_tessellation_shader
GL_OES_texture_3D
GL_OES_texture_border_clamp
GL_OES_texture_buffer
GL_OES_texture_cube_map_array
GL_OES_texture_float
GL_OES_texture_half_float
GL_OES_texture_npot
GL_OES_texture_stencil8
GL_OES_texture_storage_multisample_2d_array
GL_OES_vertex_array_object
GL_OES_vertex_half_float
GL_OVR_multiview
GL_OVR_multiview2
GL_OVR_multiview_multisampled_render_to_texture

Hi axel,

Thanks for the detailed information. Could I ask you please to provide the graphics driver version (DDK) you are using?

I will report this internally and provide you any information that could be useful.

Best regards,
Alejandro

Hi axel,

I have confirmed PVRTC is unfortunately not supported in the core you are using, BXS 4-64 MC1. The commercial product information under IMG BXS-4-64 MC1 - Imagination has been updated, apologies for the confusion.

Best regards,
Alejandro