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KallistiOS / kos-ports

Ported library collection for KallistiOS
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No VQ texture format definitions in the new libGL #45

Open nextgeniuspro opened 10 months ago

nextgeniuspro commented 10 months ago

In the description of glCompressedTexImage2DARB there are constants for compressed iternal formats:

/* Loads VQ compressed texture from SH4 RAM into PVR VRAM */
/* internalformat must be one of the following constants:
    GL_UNSIGNED_SHORT_5_6_5_VQ
    GL_UNSIGNED_SHORT_5_6_5_VQ_TWID
    GL_UNSIGNED_SHORT_4_4_4_4_VQ
    GL_UNSIGNED_SHORT_4_4_4_4_VQ_TWID
    GL_UNSIGNED_SHORT_1_5_5_5_VQ
    GL_UNSIGNED_SHORT_1_5_5_5_VQ_TWID
 */

but where these constant defined? In the KGL they were defined in gl.h file

darcagn commented 10 months ago

It may not be implemented.

You'll want to report this upstream to GLdc directly here: https://gitlab.com/simulant/GLdc/-/issues

nextgeniuspro commented 10 months ago

In glkos.h header I found these constants, do they intented to be use instead of those that mentioned in the comment of glCompressedTexImage2DARB function?

/*
 * Dreamcast specific compressed + twiddled formats.
 * We use constants from the range 0xEEE0 onwards
 * to avoid trampling any real GL constants (this is in the middle of the
 * any_vendor_future_use range defined in the GL enum.spec file.
*/
#define GL_UNSIGNED_SHORT_5_6_5_TWID_KOS            0xEEE0
#define GL_UNSIGNED_SHORT_1_5_5_5_REV_TWID_KOS      0xEEE2
#define GL_UNSIGNED_SHORT_4_4_4_4_REV_TWID_KOS      0xEEE3

#define GL_COMPRESSED_RGB_565_VQ_KOS                0xEEE4
#define GL_COMPRESSED_ARGB_1555_VQ_KOS              0xEEE6
#define GL_COMPRESSED_ARGB_4444_VQ_KOS              0xEEE7

#define GL_COMPRESSED_RGB_565_VQ_TWID_KOS           0xEEE8
#define GL_COMPRESSED_ARGB_1555_VQ_TWID_KOS         0xEEEA
#define GL_COMPRESSED_ARGB_4444_VQ_TWID_KOS         0xEEEB

#define GL_COMPRESSED_RGB_565_VQ_MIPMAP_KOS                0xEEEC
#define GL_COMPRESSED_ARGB_1555_VQ_MIPMAP_KOS              0xEEED
#define GL_COMPRESSED_ARGB_4444_VQ_MIPMAP_KOS              0xEEEE

#define GL_COMPRESSED_RGB_565_VQ_MIPMAP_TWID_KOS           0xEEEF
#define GL_COMPRESSED_ARGB_1555_VQ_MIPMAP_TWID_KOS         0xEEF0
#define GL_COMPRESSED_ARGB_4444_VQ_MIPMAP_TWID_KOS         0xEEF1
darcagn commented 10 months ago

tagging @Kazade