; /* fallthrough */
}
- if (ctx->Extensions.TDFX_texture_compression_FXT1) {
- switch (internalFormat) {
- case GL_COMPRESSED_RGB_FXT1_3DFX:
- return GL_RGB;
- case GL_COMPRESSED_RGBA_FXT1_3DFX:
- return GL_RGBA;
- default:
- ; /* fallthrough */
- }
+ if (_mesa_is_compressed_format(ctx, internalFormat)) {
+ GLenum base_compressed =
+ _mesa_gl_compressed_format_base_format(internalFormat);
+ if (base_compressed)
+ return base_compressed;
}
- /* Assume that the ANGLE flag will always be set if the EXT flag is set.
- */
- if (ctx->Extensions.ANGLE_texture_compression_dxt) {
- switch (internalFormat) {
- case GL_COMPRESSED_RGB_S3TC_DXT1_EXT:
- return GL_RGB;
- case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT:
- case GL_COMPRESSED_RGBA_S3TC_DXT3_EXT:
- case GL_COMPRESSED_RGBA_S3TC_DXT5_EXT:
- return GL_RGBA;
- default:
- ; /* fallthrough */
- }
- }
-
- if (_mesa_is_desktop_gl(ctx)
- && ctx->Extensions.ANGLE_texture_compression_dxt) {
- switch (internalFormat) {
- case GL_RGB_S3TC:
- case GL_RGB4_S3TC:
- return GL_RGB;
- case GL_RGBA_S3TC:
- case GL_RGBA4_S3TC:
- return GL_RGBA;
- default:
- ; /* fallthrough */
- }
- }
+ if (ctx->Extensions.KHR_texture_compression_astc_ldr &&
+ _mesa_is_astc_format(internalFormat))
+ return GL_RGBA;
if (ctx->Extensions.MESA_ycbcr_texture) {
if (internalFormat == GL_YCBCR_MESA)
case GL_SRGB8_EXT:
case GL_COMPRESSED_SRGB_EXT:
return GL_RGB;
- case GL_COMPRESSED_SRGB_S3TC_DXT1_EXT:
- return ctx->Extensions.EXT_texture_compression_s3tc ? GL_RGB : -1;
case GL_SRGB_ALPHA_EXT:
case GL_SRGB8_ALPHA8_EXT:
case GL_COMPRESSED_SRGB_ALPHA_EXT:
return GL_RGBA;
- case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT:
- case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT:
- case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT:
- return ctx->Extensions.EXT_texture_compression_s3tc ? GL_RGBA : -1;
case GL_SLUMINANCE_ALPHA_EXT:
case GL_SLUMINANCE8_ALPHA8_EXT:
case GL_COMPRESSED_SLUMINANCE_ALPHA_EXT:
}
}
- if (ctx->Extensions.ARB_texture_compression_rgtc) {
- switch (internalFormat) {
- case GL_COMPRESSED_RED_RGTC1:
- case GL_COMPRESSED_SIGNED_RED_RGTC1:
- return GL_RED;
- case GL_COMPRESSED_RG_RGTC2:
- case GL_COMPRESSED_SIGNED_RG_RGTC2:
- return GL_RG;
- default:
- ; /* fallthrough */
- }
- }
-
- if (ctx->Extensions.EXT_texture_compression_latc) {
- switch (internalFormat) {
- case GL_COMPRESSED_LUMINANCE_LATC1_EXT:
- case GL_COMPRESSED_SIGNED_LUMINANCE_LATC1_EXT:
- return GL_LUMINANCE;
- case GL_COMPRESSED_LUMINANCE_ALPHA_LATC2_EXT:
- case GL_COMPRESSED_SIGNED_LUMINANCE_ALPHA_LATC2_EXT:
- return GL_LUMINANCE_ALPHA;
- default:
- ; /* fallthrough */
- }
- }
-
- if (ctx->Extensions.ATI_texture_compression_3dc) {
- switch (internalFormat) {
- case GL_COMPRESSED_LUMINANCE_ALPHA_3DC_ATI:
- return GL_LUMINANCE_ALPHA;
- default:
- ; /* fallthrough */
- }
- }
-
- if (ctx->Extensions.OES_compressed_ETC1_RGB8_texture) {
- switch (internalFormat) {
- case GL_ETC1_RGB8_OES:
- return GL_RGB;
- default:
- ; /* fallthrough */
- }
- }
-
- if (_mesa_is_gles3(ctx) || ctx->Extensions.ARB_ES3_compatibility) {
- switch (internalFormat) {
- case GL_COMPRESSED_RGB8_ETC2:
- case GL_COMPRESSED_SRGB8_ETC2:
- return GL_RGB;
- case GL_COMPRESSED_RGBA8_ETC2_EAC:
- case GL_COMPRESSED_SRGB8_ALPHA8_ETC2_EAC:
- case GL_COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2:
- case GL_COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_ETC2:
- return GL_RGBA;
- case GL_COMPRESSED_R11_EAC:
- case GL_COMPRESSED_SIGNED_R11_EAC:
- return GL_RED;
- case GL_COMPRESSED_RG11_EAC:
- case GL_COMPRESSED_SIGNED_RG11_EAC:
- return GL_RG;
- default:
- ; /* fallthrough */
- }
- }
-
- if (_mesa_is_desktop_gl(ctx) &&
- ctx->Extensions.ARB_texture_compression_bptc) {
- switch (internalFormat) {
- case GL_COMPRESSED_RGBA_BPTC_UNORM:
- case GL_COMPRESSED_SRGB_ALPHA_BPTC_UNORM:
- return GL_RGBA;
- case GL_COMPRESSED_RGB_BPTC_SIGNED_FLOAT:
- case GL_COMPRESSED_RGB_BPTC_UNSIGNED_FLOAT:
- return GL_RGB;
- default:
- ; /* fallthrough */
- }
- }
-
- if (ctx->API == API_OPENGLES) {
- switch (internalFormat) {
- case GL_PALETTE4_RGB8_OES:
- case GL_PALETTE4_R5_G6_B5_OES:
- case GL_PALETTE8_RGB8_OES:
- case GL_PALETTE8_R5_G6_B5_OES:
- return GL_RGB;
- case GL_PALETTE4_RGBA8_OES:
- case GL_PALETTE8_RGB5_A1_OES:
- case GL_PALETTE4_RGBA4_OES:
- case GL_PALETTE4_RGB5_A1_OES:
- case GL_PALETTE8_RGBA8_OES:
- case GL_PALETTE8_RGBA4_OES:
- return GL_RGBA;
- default:
- ; /* fallthrough */
- }
- }
-
return -1; /* error */
}